CN203223216U

CN203223216U - Distributed optical cable whole course online stress detector for under well casing strings of oil and gas wells

Info

Publication number: CN203223216U
Application number: CN 201320008297
Authority: CN
Inventors: 陈军; 解宝江
Original assignee: XINJIANG PETROLEUM COLLEGE; China National Petroleum Corp
Current assignee: XINJIANG PETROLEUM COLLEGE; China National Petroleum Corp
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-10-02
Anticipated expiration: 2023-01-08

Abstract

The utility model relates to the field of stress detector technology of under well casing strings of oil and gas wells and provides a distributed optical cable whole course online stress detector for under well casing strings of oil and gas wells. The detector comprises a Brillouin optical time domain analyzer, linked-in detecting pipe nipples and at least four casing pipes, wherein the linked-in detecting pipe nipples are arranged between at least two pairs of adjacent casing pipes; and the rest adjacent casing pipes are fastened together in a coupling way. During a stress test to under well casing pipes by the distributed optical cable whole course online stress detector for under well casing strings of oil and gas wells, the detector is characterized in that the detector can detect deformation in an elastic range, perform online stress detection to in-service casing strings and can perform detection to stress on under well whole well deep casing strings, thereby greatly improving detecting efficiency and range. Therefore, the detector enables technicians to optimize steel grade and wall thickness practically required by under well casing pipes according to obtained stress information, thereby facilitating people to effectively determine safety of under well in-service casing strings and finally reducing complex cost of oil and gas developing and producing.

Description

The omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post

Technical field

The utility model relates to oil gas well down-hole casing post stress detection device technical field, is the omnidistance online stress detection device of the distributed optical cable of a kind of oil gas well down-hole casing post.

Background technology

At present, the strain of oil gas well down-hole casing post and stress detection mainly comprise MFC multi-arm hole diameter detection technique, ultrasonic wave down-hole imaging detection technology and magnetic method detection technique, above detection technique can only detect the nonvolatil amount of plastic deformation of downhole oil gas well casing string, and can't detect for the deflection of casing string in elastic range, and the strain detecting of the oil gas casing post that can't be applied to normally to be on active service and stress detect.Simultaneously, adopt above detection technique in the oil gas well, to be lowered to instrument, thereby interrupted the ordinary production of oil gas well, conventional sleeve tubing string stress detection has following characteristics: " point type " measures, can't accurately locate, adopt electrometric sensor to be subject to that electromagnetic interference, measuring distance are short, the later maintenance workload is big.Newer stress detection is down-hole casing post optical cable-grating test technology, it is to be system's detecting element with the grating, be information transfer channel with the optical cable, stress to down-hole military service casing string detects, be characterized in to detect by grating the casing string stress information of grating mounting points, can't detect the stress information on the full well depth casing string in down-hole, cause the technician can not be according to the stress information that obtains, optimize grade of steel and the wall thickness of the actual demand of block down-hole casing, thereby influence people to effective judgement of the casing string safety of down-hole military service, can only when the down-hole casing post designs, significantly improve grade of steel and the wall thickness of sleeve pipe, so just increase the integrated cost of oil gas well development and production.

Summary of the invention

The utility model provides the distributed optical cable of a kind of oil gas well down-hole casing post omnidistance online stress detection device, overcome the deficiency of above-mentioned prior art, the casing string that it can solve effectively that existing oil gas well down-hole casing post stress detection device exists in actual use can't detect deflection in the elastic range, can't align informal dress labour carries out detecting at uniaxial stress, problem that can't the stress on the full well depth casing string detects to the down-hole.

The technical solution of the utility model realizes by following measure: the omnidistance online stress detection device of the distributed optical cable of a kind of oil gas well down-hole casing post comprises the Brillouin optical time domain analysis instrument, the formula of linking detects pipe nipple and at least four sleeve pipe; Be installed with the formula of linking therein between at least two pairs of adjacent casings and detect pipe nipple, the residue adjacent casing is fixedly installed togather by box cupling, being installed with at least two outside sleeve pipe, the formula of linking detect pipe nipple and box cupling takes the shape of the letter U respectively and axial symmetrical axial optical cable, wherein one of an axial optical cable section in the shape of a spiral shape be fastened on sleeve pipe, one end of every axial optical cable and the pump light port of Brillouin optical time domain analysis instrument link together, and the continuous light port of the other end of every axial optical cable and Brillouin optical time domain analysis instrument links together.

Be the further optimization and/or improvements to above-mentioned utility model technical scheme below:

Above-mentioned axial optical cable can be two, and the axial optical cable of an axial optical cable and another root 90 degree at interval is distributed in sleeve pipe, links on formula detection pipe nipple and the box cupling.

One section of an above-mentioned axial optical cable in the shape of a spiral shape twine and be fixed on the sleeve pipe by consolidating agent, it revolves lift angle and can be 45 degree.

The above-mentioned formula detection pipe nipple of linking can comprise body; There is through hole inboard at body, at the middle part of body outer lug boss is arranged, and circle distribution has at least four axial detection optical cable to imbed groove on outer lug boss, and axial optical cable is fixedly mounted on axial detection optical cable by consolidating agent and imbeds in the groove.

Can there be conical internal thread above-mentioned upper end at body, in the lower end of body conical external screw thread is arranged, and the top of outer lug boss is up-narrow and down-wide taper type, and the bottom of outer lug boss is taper type wide at the top and narrow at the bottom, axially detects optical cable and imbeds the bottom of groove and be circular-arc.

Above-mentioned can have optical cable to cross the box cupling protector in the box cupling outside, and this optical cable is crossed the box cupling protector and comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

The front side, upper end of above-mentioned left semi-ring and right semi-ring and rear side respectively can be fluted, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

Above-mentionedly can be installed with at least two by the optical cable fixator in outside of sleeve and take the shape of the letter U respectively and the axial axial optical cable of symmetry; this optical cable fixator is the fixing protector of stress test optical cable; stress test optical cable fixedly protector comprises two hemizonids and fastening devices; hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable.

The said fixing device can be screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, and there is chamfering two ends of the hemizonid all outside.

Appeal can be installed with at least two by the optical cable fixator in outside of sleeve and take the shape of the letter U respectively and axial symmetrical axial optical cable, and this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axial detection optical cable imbed groove corresponding axial optical cable mounting groove.

It is above-mentioned that the top and bottom of half snap ring can have left horizontal draw-in groove respectively on a left side, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

Above-mentioned consolidating agent can be polyester glue, and consolidating agent is high-temperature plastic.

The utility model is carrying out the down-hole casing post in the process of stress test, has the deflection that can detect in the elastic range, the casing string that can align informal dress labour carries out detecting and characteristics that can the stress on the full well depth casing string detects to the down-hole at uniaxial stress, detection efficiency and detection range have greatly been improved, thereby the help technician can be according to the stress information that obtains, optimize grade of steel and the wall thickness of the actual demand of block down-hole casing, be conducive to the safety that people effectively judge down-hole military service casing string, finally reduced the integrated cost of oil gas well development and production.

Description of drawings

Accompanying drawing 1 is looked the sectional structure schematic diagram for the master of the utility model most preferred embodiment.

Accompanying drawing 2 be in the accompanying drawing 1 A-A to casing string and the sectional structure schematic diagram of optical cable.

Accompanying drawing 3 is looked the half section structural representation for the master who links formula detection pipe nipple.

Accompanying drawing 4 be in the accompanying drawing 3 B-B to the sectional structure schematic diagram.

The master that accompanying drawing 5 is crossed the box cupling protector for optical cable looks the broken section structural representation.

Accompanying drawing 6 is looked the broken section structural representation for the right side of accompanying drawing 5.

Accompanying drawing 7 for the stress test optical cable fixedly the master of protector look the broken section structural representation.

Accompanying drawing 8 is looked the broken section structural representation for the right side of accompanying drawing 7.

Accompanying drawing 9 is fixed stress test clip master TV structure schematic diagram.

Accompanying drawing 10 is that C-C in the accompanying drawing 9 is to the broken section structural representation.

Coding in the accompanying drawing is respectively: 1 is the Brillouin optical time domain analysis instrument, and 2 is sleeve pipe, and 3 for linking formula detection pipe nipple; 4 cross the box cupling protector for optical cable, and 5 is the optical cable fixator, and 6 is axial optical cable; 7 is axially to detect optical cable to imbed groove, and 8 is body, and 9 is through hole; 10 is outer lug boss, and 11 is left semi-ring, and 12 is right semi-ring; 13 is the box cupling annular groove, and 14 is axial cable duct, and 15 is groove; 16 is fastening bolt, and 17 is hemizonid, and 18 is axial optical cable holddown groove; 19 is set bolt; 20 is the ring body groove, and 21 is the attaching nut, and 22 is left half snap ring; 23 is right half snap ring; 24 is inner convex platform, and 25 is axial optical cable mounting groove, and 26 is connecting bolt.

The specific embodiment

The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.

Below in conjunction with embodiment and accompanying drawing the utility model is further described:

Shown in accompanying drawing 1,2,3,4,5,6,7,8,9,10, the omnidistance online stress detection device of the distributed optical cable of this oil gas well down-hole casing post comprises Brillouin optical time domain analysis instrument 1, the formula of linking detects pipe nipple 3 and at least four sleeve pipe 2; Be installed with the formula of linking therein between at least two pairs of adjacent casings 2 and detect pipe nipple 3, residue adjacent casing 2 is fixedly installed togather by box cupling, at sleeve pipe 2, the formula of linking detects pipe nipple 3 and the box cupling outside and is installed with at least two and takes the shape of the letter U respectively and the axial axial optical cable 6 of symmetry, wherein one of an axial optical cable 6 section in the shape of a spiral shape be fastened on sleeve pipe 2, one end of every axial optical cable 6 and the pump light port of Brillouin optical time domain analysis instrument 1 link together, and the continuous light port of the other end of every axial optical cable 6 and Brillouin optical time domain analysis instrument 1 links together.The formula of will linking according to actual needs detects pipe nipple 3 and links optional position in the down-hole casing 2; Axially optical cable 6 and spiral axial optical cable 6 can obtain the axial stress value on the test section, circumference stress value and radial stresses value on the down-hole casing 2.

Can according to actual needs the omnidistance online stress detection device of the distributed optical cable of above-mentioned oil gas well down-hole casing post be made further optimization and/or improvements:

Shown in accompanying drawing 1,2, axially optical cable 6 is two, and an axial optical cable 6 is distributed in sleeve pipe 2, links on formula detection pipe nipple 3 and the box cupling with the axial optical cable of another root 6 intervals 90 degree.

Shown in accompanying drawing 1,2, one section of an axial optical cable 6 in the shape of a spiral shape twine and be fixed on the sleeve pipe 2 by consolidating agent, it revolves lift angle is 45 degree.

Shown in accompanying drawing 3,4, the formula of linking detects pipe nipple 3 and comprises body 8; In the inboard of body 8 through hole 9 is arranged, at the middle part of body 8 outer lug boss 10 is arranged, circle distribution has at least four axial detection optical cable to imbed groove 7 on outer lug boss 10, and axial optical cable 6 is fixedly mounted on axial detection optical cable by consolidating agent and imbeds in the groove 7.Imbed axial detection optical cable and imbed the stress value that the axial optical cable 6 of groove 7 directly detects subsurface environment middle sleeve 2, the stress value of detected like this sleeve pipe 2 is accurate stress value, being worth with this is benchmark, sleeve pipe 2 outsides are laid the detected value of optical cable and revise, so just improved the accuracy of detection of down-hole optical cable to sleeve pipe 2 stress.

Shown in accompanying drawing 3,4, there is conical internal thread upper end at body 8, in the lower end of body 8 conical external screw thread is arranged, and the top of outer lug boss 10 is up-narrow and down-wide taper type, the bottom of outer lug boss 10 is taper type wide at the top and narrow at the bottom, axially detects optical cable and imbeds the bottom of groove 7 and be circular-arc.

Shown in accompanying drawing 5,6, there is optical cable to cross box cupling protector 4 in the box cupling outside, this optical cable is crossed box cupling protector 4 and is comprised left semi-ring 11 and right semi-ring 12; A left side semi-ring 11 and right semi-ring 12 are fixedly installed togather by fastener, the box cupling annular groove 13 that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring 11 and right semi-ring 12, the circle ring inner wall of forming at left semi-ring 11 and right semi-ring 12 be intervally distributed with at least four imbed the corresponding axial cable duct 14 of groove 7 with axial detection optical cable.By the protective effect that optical cable is crossed 4 pairs of optical cables of box cupling protector, make the optical cable and the borehole wall that are fixedly mounted on the box cupling place isolate, avoid damaging.There is boss at sleeve pipe 2 box cupling places, by design box cupling annular groove 13, when left semi-ring 11 and right semi-ring 12 are installed in box cupling place on the sleeve pipe 2, make boss be positioned at box cupling annular groove 13, adopt structure and sleeve pipe 2 box cuplings of box cupling annular groove 13 to clamp, make optical cable cross box cupling protector 4 and sleeve pipe 2 box cuplings location, be connected simple in structure, reliable in function; By axial cable duct 14 is arranged on the inwall of left semi-ring 11 and right semi-ring 12, optical cable and the borehole wall that sleeve pipe 2 box cupling places are laid are isolated fully, have guaranteed in setting of casing 2 processes safety of box cupling place optical cable.

Shown in accompanying drawing 5,6, the front side, upper end of left side semi-ring 11 and right semi-ring 12 and rear side difference fluted 15, the front side, lower end of left side semi-ring 11 and right semi-ring 12 and rear side difference fluted 15, the left semi-ring 11 corresponding with groove 15 and right semi-ring 12 are fixed together by fastener, fastener is fastening bolt 16, on the left semi-ring 11 corresponding with groove 15 and the right semi-ring 12 threaded mounting hole is arranged respectively, fastening bolt 16 is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring 11 and right semi-ring 12 have chamfering respectively.

Shown in accompanying drawing 7,8; being installed with at least two in sleeve pipe 2 outsides by optical cable fixator 5 takes the shape of the letter U respectively and axial symmetrical axial optical cable 6; this optical cable fixator 5 is the fixing protector of stress test optical cable; stress test optical cable fixedly protector comprises two hemizonids 17 and fastening devices; hemizonid 17 is fixed together by fastening devices, hemizonid 17 inboards circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove 18 of groove 7 with axial detection optical cable.By the fixation of optical cable fixator 5 can guarantee optical cable the laying orientation, revolve parameters such as lift angle and adhere to specification.

Shown in accompanying drawing 7,8, fastening devices is screw bolt and nut or set bolt 19, front side, upper end and rear side at two hemizonids 17 have ring body groove 20 respectively, at front side, lower end and the rear side of two hemizonids 17 ring body groove 20 are arranged respectively, and there is chamfering two ends of the hemizonid 17 all outside.

Shown in accompanying drawing 9,10, being installed with at least two in sleeve pipe 2 outsides by optical cable fixator 5 takes the shape of the letter U respectively and axial symmetrical axial optical cable 6, this optical cable fixator 5 is fixed stress test clip, and fixed stress test clip comprises left half snap ring 22 and right half snap ring 23; A left side half snap ring 22 is respectively the relative semicircle ring body of opening with right half snap ring 23, a left side half snap ring 22 is fixed together and forms annulus respectively with the top and bottom of right half snap ring 23, half snap ring 22 has mutual corresponding inner convex platform 24 respectively with the interior front of right half snap ring 23 on a left side, the inside circumference of annulus be distributed with at least four with axial detection optical cable imbed groove 7 corresponding axial optical cable mounting groove 25.Fashionable under the well head at sleeve pipe 2, can need sites measured that left half snap ring 22 and right half snap ring 23 are installed arbitrarily, the inner convex platform 24 by the annulus front portion fixes in sleeve pipe 2 outsides, and test optical fibre cables is sleeved in the axial optical cable mounting groove 25, and is easy to use; When elastic bending deflection took place in the rear portion of sleeve pipe 2 at annulus, test optical fibre cables can be measured the elastic bending deflection of sleeve pipe 2, for the distortion of sleeve pipe 2 provides early stage judgement and maintenance.

Shown in accompanying drawing 9,10, the top and bottom of half snap ring 22 have left horizontal draw-in groove respectively on a left side, the top and bottom of the right side half snap ring 23 corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on half snap ring 22 of the left side on horizontal draw-in groove right side, a left side and the connecting through hole 9 of mutual correspondence arranged respectively on the right side half snap ring 23 in right horizontal draw-in groove left side, be separately installed with connecting bolt 26 in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt 26 passes connecting through hole 9 respectively and is fixed in the right horizontal draw-in groove by attaching nut 21.

Shown in accompanying drawing 1,2,3,4, consolidating agent is polyester glue, and consolidating agent is high-temperature plastic.

As required, between Brillouin optical time domain analysis instrument 1 and the axial optical cable 6 cable junction box is installed.

As required, inner convex platform 24 is annular inner convex platform, the narrow taper type in wide both sides in the middle of the outside of annulus is.Be convenient to sleeve pipe 2 and under the situation of the annulus that left half snap ring 22 and 23 formation of right half snap ring are installed, pass through the well head G.I.H.

The utility model is applied to the online detection of stress of oil gas well down-hole military service casing string, compare MFC multi-arm hole diameter, the imaging of ultrasonic wave down-hole and the magnetic method detection technique of present use, need not to interrupt the ordinary production operation of oil gas well, have the characteristics of online, real-time and overall process, the down-hole casing post stress data of detection is more complete, comprehensive.Compare the down-hole casing post optical cable-grating test technology of latest development, distributed optical cable down-hole military service casing string stress detects the stress that can obtain full well depth casing string and detects data, and the point-like casing string stress data that obtains than down-hole casing post optical cable-grating test technology has better use value.

Claims

1. the omnidistance online stress detection device of the distributed optical cable of an oil gas well down-hole casing post is characterized in that comprising the Brillouin optical time domain analysis instrument, the formula of linking detects pipe nipple and at least four sleeve pipe; Be installed with the formula of linking therein between at least two pairs of adjacent casings and detect pipe nipple, the residue adjacent casing is fixedly installed togather by box cupling, being installed with at least two outside sleeve pipe, the formula of linking detect pipe nipple and box cupling takes the shape of the letter U respectively and axial symmetrical axial optical cable, wherein one of an axial optical cable section in the shape of a spiral shape be fastened on sleeve pipe, one end of every axial optical cable and the pump light port of Brillouin optical time domain analysis instrument link together, and the continuous light port of the other end of every axial optical cable and Brillouin optical time domain analysis instrument links together.

2. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1, it is characterized in that axial optical cable is two, the axial optical cable of an axial optical cable and another root 90 degree at interval is distributed in sleeve pipe, links on formula detection pipe nipple and the box cupling.

3. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1 and 2, it is characterized in that one section of an axial optical cable in the shape of a spiral shape twine and be fixed on the sleeve pipe by consolidating agent, it revolves lift angle is 45 degree.

4. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1 and 2 is characterized in that linking formula detection pipe nipple and comprises body; There is through hole inboard at body, at the middle part of body outer lug boss is arranged, and circle distribution has at least four axial detection optical cable to imbed groove on outer lug boss, and axial optical cable is fixedly mounted on axial detection optical cable by consolidating agent and imbeds in the groove.

5. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 3 is characterized in that linking formula detection pipe nipple and comprises body; There is through hole inboard at body, at the middle part of body outer lug boss is arranged, and circle distribution has at least four axial detection optical cable to imbed groove on outer lug boss, and axial optical cable is fixedly mounted on axial detection optical cable by consolidating agent and imbeds in the groove.

6. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 4, it is characterized in that in the upper end of body conical internal thread being arranged, there is conical external screw thread lower end at body, the top of outer lug boss is up-narrow and down-wide taper type, the bottom of outer lug boss is taper type wide at the top and narrow at the bottom, axially detects optical cable and imbeds the bottom of groove and be circular-arc.

7. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 5, it is characterized in that in the upper end of body conical internal thread being arranged, there is conical external screw thread lower end at body, the top of outer lug boss is up-narrow and down-wide taper type, the bottom of outer lug boss is taper type wide at the top and narrow at the bottom, axially detects optical cable and imbeds the bottom of groove and be circular-arc.

8. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1 and 2 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, and this optical cable is crossed the box cupling protector and comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

9. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 3 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, and this optical cable is crossed the box cupling protector and comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

10. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 4 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, and this optical cable is crossed the box cupling protector and comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

11. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 5 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, this optical cable is crossed the box cupling protector and is comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

12. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 6 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, this optical cable is crossed the box cupling protector and is comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

13. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 7 is characterized in that having optical cable to cross the box cupling protector in the box cupling outside, this optical cable is crossed the box cupling protector and is comprised left semi-ring and right semi-ring; Left side semi-ring and right semi-ring are fixedly installed togather by fastener, the box cupling annular groove that has respectively radially and can be interconnected on the middle part inwall of a left side semi-ring and right semi-ring, the circle ring inner wall of forming at left semi-ring and right semi-ring be intervally distributed with at least four imbed the corresponding axial cable duct of groove with axial detection optical cable.

14. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 8, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

15. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 9, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

16. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 10, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

17. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 11, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

18. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 12, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

19. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 13, the front side, upper end and the rear side that it is characterized in that left semi-ring and right semi-ring are fluted respectively, the front side, lower end of left side semi-ring and right semi-ring and rear side are fluted respectively, left semi-ring and the right semi-ring corresponding with groove are fixed together by fastener, fastener is fastening bolt, on the left semi-ring corresponding with groove and the right semi-ring threaded mounting hole is arranged respectively, fastening bolt is fixedly mounted in the threaded mounting hole, and the front end outside and the outside, rear end of left semi-ring and right semi-ring have chamfering respectively.

20. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1 and 2, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

21. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 3, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

22. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 4, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

23. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 5, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

24. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 6, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

25. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 7, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

26. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 8, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

27. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 9, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

28. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 10, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

29. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 11, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

30. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 12, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

31. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 13, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

32. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 14, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

33. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 15, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

34. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 16, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

35. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 17, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

36. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 18, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

37. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 19, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is the fixing protector of stress test optical cable, stress test optical cable fixedly protector comprises two hemizonids and fastening devices, hemizonid is fixed together by fastening devices, the hemizonid inboard circumferentially have be no less than four imbed the corresponding axial optical cable holddown groove of groove with axial detection optical cable; Or/and fastening devices is screw bolt and nut or set bolt, at front side, upper end and the rear side of two hemizonids the ring body groove is arranged respectively, at front side, lower end and the rear side of two hemizonids the ring body groove is arranged respectively, there is chamfering two ends of the hemizonid all outside.

38. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 1 and 2, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

39. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 3, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

40. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 4, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

41. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 5, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

42. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 6, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

43. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 7, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

44. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 8, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

45. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 9, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

46. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 10, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

47. want the omnidistance online stress detection device of the distributed optical cable of 11 described oil gas well down-hole casing posts according to right, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

48. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 12, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

49. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 13, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

50. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 14, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

51. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 15, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

52. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 16, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

53. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 17, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

54. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 18, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

55. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 19, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

56. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 20, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

57. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 21, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

58. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 22, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

59. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 23, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

60. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 24, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

61. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 25, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

62. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 26, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

63. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 27, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

64. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 28, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

65. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 29, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

66. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 30, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

67. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 31, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

68. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 32, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

69. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 33, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

70. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 34, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

71. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 35, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

72. the omnidistance online stress detection device of the distributed optical cable of oil gas well down-hole casing post according to claim 36, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

73. according to the omnidistance online stress detection device of the distributed optical cable of the described oil gas well of claim 37 down-hole casing post, it is characterized in that being installed with at least two in outside of sleeve by the optical cable fixator takes the shape of the letter U respectively and axial symmetrical axial optical cable, this optical cable fixator is fixed stress test clip, and fixed stress test clip comprises left half snap ring and right half snap ring; A left side half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, the top and bottom of a left side half snap ring and right half snap ring are fixed together and form annulus respectively, half snap ring has mutual corresponding inner convex platform respectively with the interior front of right half snap ring on a left side, the inside circumference of annulus be distributed with at least four with axially detect optical cable and imbed the corresponding axial optical cable mounting groove of groove; Or/and, the top and bottom of a left side half snap ring have left horizontal draw-in groove respectively, the top and bottom of the right side half snap ring corresponding with the horizontal draw-in groove in a left side have right horizontal draw-in groove respectively, on a left side half snap ring on horizontal draw-in groove right side, a left side and the connecting through hole of mutual correspondence arranged respectively on the right side half snap ring in right horizontal draw-in groove left side, be separately installed with connecting bolt in the horizontal draw-in groove in a left side, the right-hand member of connecting bolt passes connecting through hole respectively and is fixed in the right horizontal draw-in groove by the attaching nut.

74. according to the omnidistance online stress detection device of the distributed optical cable of the described oil gas well of claim 73 down-hole casing post, it is characterized in that consolidating agent is polyester glue.

75. according to the omnidistance online stress detection device of the distributed optical cable of the described oil gas well of claim 73 down-hole casing post, it is characterized in that consolidating agent is high-temperature plastic.