CN209928076U - Underground optical cable protector - Google Patents
Underground optical cable protector Download PDFInfo
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- CN209928076U CN209928076U CN201821453721.8U CN201821453721U CN209928076U CN 209928076 U CN209928076 U CN 209928076U CN 201821453721 U CN201821453721 U CN 201821453721U CN 209928076 U CN209928076 U CN 209928076U
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- protector
- optical cable
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- well
- pit
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Abstract
The utility model discloses an optical cable protector in pit, including first protector body and second protector body, and first protector body and second protector body pass through axle swing joint, and when using, the outside of the coupling on the sleeve pipe is established to the optical cable protector cover in the pit, and the optical cable is arranged in between coupling and the optical cable protector in the pit. The utility model discloses have the centering effect placed in the middle of the rightting of sleeve pipe centralizer concurrently, guarantee that well cementation grout smoothly goes up to return, still have the effect of protection optical fiber cable simultaneously.
Description
Technical Field
The utility model relates to an optical cable protection field, concretely relates to optical cable protector in pit.
Background
Optical fibers have been widely used in the military, communications, fire protection, construction, and other fields. The optical fiber is free from electromagnetic interference and corrosion resistant; the passive real-time monitoring, the electric insulation and the explosion resistance are good; the volume is small, the weight is light, and the bending can be realized; the sensitivity is high, and the service life is long; long transmission distance, convenient maintenance and the like. Therefore, in recent years, in industries such as petroleum and natural gas, geothermal energy development and the like, optical fibers are also paid more and more attention and are mainly used for measuring temperature and pressure, but due to the material of the optical fibers, the optical fibers are fragile, easy to break, poor in pressure resistance and extrusion capacity, and even if armored protection is performed during cabling, the optical fibers are easy to damage under a complex and severe underground environment:
firstly, the optical cable is put into the well. The optical cable is laid on the outer wall of the sleeve and is put into the well along with the sleeve, the sleeve and the well wall can generate extrusion friction, and the optical cable is easily damaged between the sleeve and the well wall;
and secondly, casing running operation. The casing centralizer can be used in the operation, the centralizer plays a role in keeping the casing centered in a well bore, well cementing cement slurry can be ensured to return to a well head, and good well cementing quality is finally ensured, but when the centralizer is used in casing running operation, deformation, upward channeling, rotation and the like of the centralizer are easily caused due to hole shrinkage, block falling, sand deposition and the like of the well bore, the centralizer is made of steel, the texture is hard and brittle, the fracture surface is sharp, and the risk of damaging an optical fiber cable laid on the outer wall of the casing is very high;
thirdly, well cementation operation. Well cementation cement slurry enters from the casing to the well bottom, and then returns to the well head from the annulus between the casing and the well wall from the well bottom, and in the process of returning, the optical cable is impacted by the well cementation cement slurry and various rock debris and impurities in the well, so that the risk of damaging the optical cable exists.
Therefore, in order to ensure that the underground optical fiber cable is safely and smoothly put into the well and is sealed in the well cementation cement ring without damage, and the test purpose of the underground optical fiber cable is realized, the technical problem introduced above must be solved.
At present, a test optical cable is put into a casing and an oil pipe of an oil-gas well in China, but the success condition of permanently arranging a temperature-measuring and pressure-measuring optical fiber cable in a well cementation cement ring between the casing and a well wall is not many, and particularly the situation that the putting depth is more than 2000 meters is not precedent in China at present. According to research, the case that the running depth is less than 1000 meters exists, but the casing in the case is shallow in running depth, and a centralizer is not used on the casing, so that the damage risk of the centralizer to the optical cable is not considered, and the effective and safe matching of the optical cable protector and the centralizer is not considered. However, as the well depth is further increased, when the casing is put into the well, in order to ensure good well cementation quality in the later period, the casing centralizer must be considered to ensure that the casing is centered in the well, so at this time, the risk of damage to the optical cable due to deformation, damage, upward movement, rotation and the like of the centralizer must be considered, the effective and safe matching of the optical cable protector and the centralizer must be considered, the optical cable is protected, the casing is kept centered, and the well cementation cement slurry is ensured to smoothly return upward.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical cable protector in pit to solve prior art's problem, the utility model discloses have the centering effect between two parties of sleeve pipe centralizer concurrently, guarantee that well cementation grout smoothly goes up to return, still have the effect of protection optical fiber cable simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an optical cable protector in pit, includes first protector body and second protector body, and first protector body and second protector body pass through axle swing joint, and when using, the outside of the coupling on the sleeve pipe is established to optical cable protector cover in the pit, and the optical cable is arranged in between coupling and the optical cable protector in the pit.
Further, the one end that first protector body and second protector body are connected is equipped with first arch and second arch respectively, and is equipped with first connecting hole and the second connecting hole that can communicate on first arch and the second arch respectively, the axle alternates in first connecting hole and second connecting hole.
Further, the shaft is a hinge shaft.
Further, the inner sides of the first protector body and the second protector body are respectively provided with a plurality of optical cable protection grooves, and when the protector is used, the optical cables are located in the optical cable protection grooves.
Further, the outer sides of the first protector body and the second protector body are respectively provided with a plurality of protector outer wings, and the optical cable protection groove is arranged at a position corresponding to the protector outer wings.
Furthermore, two protector outer wings are respectively arranged on the outer sides of the first protector body and the second protector body, and the protector outer wings on the first protector body and the second protector body are symmetrically arranged; the inner sides of the first protector body and the second protector body are respectively provided with one or two optical cable protection grooves, and the optical cable protection grooves on the first protector body and the second protector body are symmetrically arranged.
Further, the optical cable protection groove is a U-shaped groove.
Further, the upside and the downside of first protector body and second protector body all are equipped with interior bulge loop, and the interior bulge loop of upside and downside laminates with the upper and lower step of coupling respectively.
Further, the upside and the downside of first protector body and second protector body all are equipped with a plurality of jackscrew holes, are equipped with in the jackscrew hole and can compress tightly the jackscrew of first protector body and second protector body on the sleeve pipe.
Further, the upside and the downside of first protector body and second protector body all are equipped with three jackscrew hole, and the jackscrew hole symmetry on first protector body and the second protector body sets up.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses can protect the optical cable that is used for temperature measurement, pressure measurement of laying in oil well, gas well, water well, geothermol power well casing outer wall, can avoid when going on the operation of casing pipe, owing to including but not limited to the optical cable damage that causes, destroys, inefficacy consequence such as collision, extrusion, friction, twisting with the hands between sleeve pipe and last one deck sleeve pipe, bore hole well wall.
Further, the utility model discloses utilize first arch and the second arch of mutually supporting to combine first protector body and second protector body to through the hub connection, the installation is quick, and it is firm to lock, can practice thrift whole lower casing operating time greatly.
Furthermore, optical cable protection grooves are formed in the inner sides of the first protector body and the second protector body, and the whole optical cable is protected in the optical cable protection grooves when crossing the casing coupling and is not influenced by external complex conditions.
Further, through setting up the protector outer wing, and the protector outer wing department is the biggest for other positions wall thickness, it is minimum to whole protector rigidity influence behind the fluting here, consequently, the design of optical cable protection groove is inboard at the outer wing, in addition, the protector outer wing can prevent that the sleeve pipe from leaning on the wall of a well, thereby force the sleeve pipe to leave the wall of a well and guarantee the sleeve pipe in the well placed in the middle of in the well, reach and right the usefulness of location, sheathed tube well is placed in the middle, can make the grout of later stage well cementation go up smoothly and return and evenly solidify in the annular gap of sleeve pipe and wall of a well, thereby high-quality well.
Further, the optical cable protection groove is arranged to be a U-shaped groove, and when the optical cable rubs in the U-shaped groove, the optical cable can be better protected.
Furthermore, the inner convex ring is attached to the upper step and the lower step of the coupling in design and is embraced with the coupling steps, so that the optical cable protector can be prevented from moving up and down.
Further, the optical cable protector can be prevented from rotating by arranging the jackscrew hole and the jackscrew matched with the jackscrew hole.
Drawings
Fig. 1 is a side view of the protector body of the present invention;
fig. 2 is a perspective view of the protector body of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is a plan view of the first protector body and the second protector body of the present invention when they are opened;
fig. 5 is a schematic view of the present invention in use.
Wherein: 1. a first protector body; 2. a second protector body; 3. the outer wing of the protector; 4. an optical cable protection slot; 5. a jackscrew hole; 6. a shaft; 7. a first protrusion; 8. a second protrusion; 9. a coupling; 10. a well wall; 11. a sleeve; 12. an underground cable protector; 13. an optical cable.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 5, an underground optical cable protector comprises a first protector body 1 and a second protector body 2, wherein the first protector body 1 and the second protector body 2 are movably connected through a shaft 6, when the underground optical cable protector is used, an underground optical cable protector sleeve is arranged on the outer side of a coupling 9 on a sleeve 11, an optical cable is arranged between the coupling 9 and the underground optical cable protector, one end, connected with the second protector body 2, of the first protector body 1 is provided with a first protrusion 7 and a second protrusion 8 respectively, the first protrusion 7 and the second protrusion 8 are provided with a first connecting hole and a second connecting hole which can be communicated respectively, the shaft 6 penetrates into the first connecting hole and the second connecting hole, and the shaft 6 is a hinge shaft.
The inner sides of the first protector body 1 and the second protector body 2 are respectively provided with a plurality of optical cable protection grooves 4, when the protector is used, an optical cable is positioned in the optical cable protection grooves 4, the outer sides of the first protector body 1 and the second protector body 2 are respectively provided with a plurality of protector outer wings 3, the optical cable protection grooves 4 are arranged at positions corresponding to the protector outer wings 3, the outer sides of the first protector body 1 and the second protector body 2 are respectively provided with two protector outer wings 3, and the protector outer wings 3 on the first protector body 1 and the second protector body 2 are symmetrically arranged; the inboard of first protector body 1 and second protector body 2 is equipped with one or two optical cable protection groove 4 respectively, and optical cable protection groove 4 symmetry setting on first protector body 1 and the second protector body 2, optical cable protection groove 4 is U type recess.
The upside and the downside of first protector body 1 and second protector body 2 all are equipped with interior lantern ring, and the interior lantern ring of upside and downside laminate with the upper and lower step of coupling 9 respectively, the upside and the downside of first protector body 1 and second protector body 2 all are equipped with a plurality of jackscrew holes 5, be equipped with in the jackscrew hole 5 and compress tightly the jackscrew on sleeve pipe 11 with first protector body 1 and second protector body 2, the upside and the downside of first protector body 1 and second protector body 2 all are equipped with three jackscrew hole 5, and 5 symmetries in the jackscrew hole on first protector body 1 and the second protector body 2 set up.
The following is a detailed description of the operation process of the embodiment of the present invention:
the utility model provides an optical cable protector in pit, this equipment have the centering effect of centering of sleeve pipe centralizer concurrently, guarantee that well cementation grout smoothly goes up to return, still have the effect of protection optic fibre optical cable simultaneously, specifically as follows:
1) the installation is in the most vulnerable position of optical cable: at collar 9 of casing 11. The coupling 9 belongs to the point with the largest outer diameter on the whole casing string, and relative to the casing 11, the position protrudes outwards and has a 90-degree step, and the probability of friction and collision between the casing and the well wall 10 is the largest, and the probability of damage to the optical cable 13 is the largest;
2) the utility model discloses a lock type installation, pin formula locking. After the open hole well is drilled, the casing 11 needs to be put into the open hole well as soon as possible, otherwise the well wall 10 is easy to be unstable, diameter shrinkage and well collapse are caused, and the complexity of the next casing putting operation is greatly increased. The underground optical cable protector is of a loose-leaf buckling type, when in installation, only the first protector body 1 and the second protector body 2 need to be buckled at a casing coupling, and then a hinge shaft is inserted into a locking hole at a combining point for locking, so that the installation is quick and the locking is firm;
3) and the optical cable is reserved to pass through the groove. The underground optical cable protector has the maximum effect of optical cable protection, an optical cable protection groove 4 is reserved in the protector, the optical cable protection groove 4 is a U-shaped groove, and the whole optical cable is protected in the optical cable protection groove 4 when crossing a casing coupling and is not influenced by external complex conditions.
4) The groove is specially arranged. Considering that the wall thickness of the outer wing of the underground optical cable protector is the largest relative to the wall thickness of other parts, the rigidity of the whole protector is minimally influenced after the groove is formed in the outer wing, and therefore the groove is designed on the inner side of the outer wing;
5) firm fixation, up-down movement prevention and rotation prevention. The underground optical cable protector is internally and vertically provided with an inner convex ring which is attached to the upper step and the lower step of the coupling and is encircled with the coupling steps to prevent the up-down movement. Meanwhile, six jackscrews are respectively designed on the upper part and the lower part of the protector, so that the protector is prevented from rotating strictly.
Claims (10)
1. The utility model provides an optical cable protector in pit which characterized in that, includes first protector body (1) and second protector body (2), and first protector body (1) and second protector body (2) pass through axle (6) swing joint, and when using, the outside of coupling (9) on sleeve pipe (11) is established to the optical cable protector cover in the pit, and the optical cable is arranged in between coupling (9) and the optical cable protector in the pit.
2. A downhole optical cable protector according to claim 1, wherein the first protector body (1) and the second protector body (2) are provided with a first protrusion (7) and a second protrusion (8) at the ends connected respectively, the first protrusion (7) and the second protrusion (8) are provided with a first connection hole and a second connection hole which can be communicated respectively, and the shaft (6) is inserted into the first connection hole and the second connection hole.
3. A downhole optical cable protector according to claim 1, wherein the shaft (6) is a hinge shaft.
4. A downhole optical cable protector according to claim 1, wherein the first protector body (1) and the second protector body (2) are provided with a number of cable protection grooves (4) on the inside, respectively, in use, the optical cable being located in the cable protection grooves (4).
5. A downhole optical cable protector according to claim 4, wherein the first protector body (1) and the second protector body (2) are provided with a plurality of protector outer wings (3) at outer sides thereof, respectively, and the optical cable protection groove (4) is provided at a position corresponding to the protector outer wings (3).
6. A downhole optical cable protector according to claim 5, characterized in that two protector outer wings (3) are respectively arranged on the outer sides of the first protector body (1) and the second protector body (2), and the protector outer wings (3) on the first protector body (1) and the second protector body (2) are symmetrically arranged; the inner sides of the first protector body (1) and the second protector body (2) are respectively provided with one or two optical cable protection grooves (4), and the optical cable protection grooves (4) on the first protector body (1) and the second protector body (2) are symmetrically arranged.
7. A downhole optical cable protector according to claim 4, wherein the cable protection groove (4) is a U-shaped groove.
8. A downhole optical cable protector according to claim 1, wherein the first protector body (1) and the second protector body (2) are provided with inner collars on upper and lower sides thereof, and the inner collars on the upper and lower sides are respectively fitted to upper and lower steps of the collar (9).
9. A downhole optical cable protector according to claim 1, wherein the first protector body (1) and the second protector body (2) are provided with a plurality of jackscrew holes (5) at upper and lower sides thereof, and jackscrews capable of pressing the first protector body (1) and the second protector body (2) against the casing (11) are provided in the jackscrew holes (5).
10. A downhole optical cable protector according to claim 9, wherein the first protector body (1) and the second protector body (2) are provided with three jackscrew holes (5) at upper and lower sides thereof, and the jackscrew holes (5) of the first protector body (1) and the second protector body (2) are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453721.8U CN209928076U (en) | 2018-09-05 | 2018-09-05 | Underground optical cable protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821453721.8U CN209928076U (en) | 2018-09-05 | 2018-09-05 | Underground optical cable protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209928076U true CN209928076U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821453721.8U Active CN209928076U (en) | 2018-09-05 | 2018-09-05 | Underground optical cable protector |
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| Country | Link |
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| CN (1) | CN209928076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732706A (en) * | 2018-09-05 | 2018-11-02 | 陕西延长石油国际勘探开发工程有限公司 | Underground optical cable protector |
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2018
- 2018-09-05 CN CN201821453721.8U patent/CN209928076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732706A (en) * | 2018-09-05 | 2018-11-02 | 陕西延长石油国际勘探开发工程有限公司 | Underground optical cable protector |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.75, Keji 2nd Road, hi tech Zone, Xi'an City, Shaanxi Province Patentee after: Shaanxi Yanchang Petroleum International Energy Chemical Co.,Ltd. Address before: No.75, Keji 2nd Road, hi tech Zone, Xi'an City, Shaanxi Province Patentee before: SHAANXI YANCHANG PETROLEUM INTERNATIONAL EXPLORATION DEVELOPMENT ENGINEERING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |