CN202661048U - Fixed type stress test clamp - Google Patents
Fixed type stress test clamp Download PDFInfo
- Publication number
- CN202661048U CN202661048U CN 201220269707 CN201220269707U CN202661048U CN 202661048 U CN202661048 U CN 202661048U CN 201220269707 CN201220269707 CN 201220269707 CN 201220269707 U CN201220269707 U CN 201220269707U CN 202661048 U CN202661048 U CN 202661048U
- Authority
- CN
- China
- Prior art keywords
- clamping ring
- snap ring
- half clamping
- stress test
- half snap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Abstract
The utility model relates to the technical field of downhole casing string stress testing devices, and discloses a fixed type stress test clamp. The fixed type stress test clamp comprises a left half clamping ring and a right half clamping ring, both the left half clamping ring and the right half clamping ring are semicircular ring bodies, and an opening of the left half clamping ring and an opening of the right half clamping ring face to each other. The upper end of the left half clamping ring and the upper end of the right half clamping ring are fixedly connected, the lower end of the left half clamping ring and the lower end of the right half clamping ring are fixedly connected, and therefore a circular ring is formed. An inner boss is arranged on the front portion of the inner side of the left half clamping ring, an inner boss is arranged on the front portion of the inner side of the right half clamping ring, the two inner bosses correspond to each other, at least two optical fiber mounting grooves are distributed on the inner circumference of the circular ring, and the front portion and the rear portion of each optical fiber mounting groove are communicated with each other. The fixed type stress test clamp is reasonable and compact in structure and convenient to use; the left half clamping ring and the right half clamping ring are mounted on a casing string, optical fibers are mounted in the left half clamping ring and the right half clamping ring, and therefore elastic deformation of a tested portion of the casing string inside the clamping ring can be measured, and early deformation judgment and maintenance can be provided for the casing string; and at the same time, the fixed type stress test clamp can be mounted on any to-be-tested casing strings and is quite practical.
Description
Technical field
The utility model relates to down-hole casing post stress test device technical field, is a kind of fixed stress test clip.
Background technology
At present, the strain of Oil/gas Well down-hole casing post, stress detection mainly comprise MFC multi-arm caliper, the imaging of ultrasound wave down-hole and magnetic method detection technique; These detection techniques can only detect the nonvolatil amount of plastic deformation of downhole oil gas well string of casing, deflection for the elastic range of string of casing can't detect, and can't detect for strain, the stress that normal military service does not send plastic yield Oil/gas Well string of casing; Simultaneously, this type of detection technique must be lowered to instrument to the Oil/gas Well intraocular again after the normal production of interrupting Oil/gas Well, use inconvenience.
Summary of the invention
The utility model provides a kind of fixed stress test clip, overcome the deficiency of above-mentioned prior art, it can solve effectively now that strain, the stress checkout equipment of employed down-hole casing post can't detect the elastic deformation amount of string of casing and awkward problem.
The technical solution of the utility model realizes by following measures: a kind of fixed stress test clip comprises left half snap ring and right half snap ring; Left half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, and the top and bottom of left half snap ring and right half snap ring are fixed together respectively and form annulus; Half snap ring has respectively mutual corresponding inner convex platform with the interior front of right half snap ring on a left side, is distributed with the optical fiber mounting groove that at least two front and back communicate in the inside circumference of annulus.
The below is the further optimization and/or improvements to above-mentioned utility model technical scheme:
There is respectively left horizontal draw-in groove the top and bottom of an above-mentioned left side half snap ring, there is respectively right horizontal draw-in groove the top and bottom of the right side half snap ring corresponding with left horizontal draw-in groove, on a left side half snap ring on left horizontal draw-in groove right side and the connecting through hole of mutual correspondence arranged respectively on the right semi-ring in right horizontal draw-in groove left side, be separately installed with coupling bolt in left horizontal draw-in groove, the right-hand member of coupling bolt passes respectively connecting through hole and is fixed in the right horizontal draw-in groove by the attaching nut.
Above-mentioned inner convex platform is annular inner convex platform or circumferentially-spaced inner convex platform.
The narrow taper type in wide both sides in the middle of the outside of above-mentioned annulus is.
Above-mentioned annulus inside circumference is distributed with the optical fiber mounting groove that six front and back communicate.
The utility model reasonable and compact in structure, easy to use; By being installed on the string of casing left side half snap ring and right half snap ring and installing optical fibres, can measure snap ring inner sleeve tubing string test department position elastic deformation, for the distortion of string of casing provides early stage judgement and maintenance; Can install at the string of casing that needs arbitrarily to measure simultaneously, practical.
Description of drawings
Accompanying drawing 1 is the main TV structure synoptic diagram of the utility model most preferred embodiment.
Accompanying drawing 2 is that the A-A of accompanying drawing 1 is to the half section structural representation.
Coding in the accompanying drawing is respectively: 1 is inner convex platform, and 2 is the optical fiber mounting groove, and 3 is left half snap ring, and 4 is right half snap ring, and 5 is coupling bolt, and 6 is the attaching nut.
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.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this fixed stress test clip comprises left half snap ring 3 and right half snap ring 4; Left half snap ring 3 is respectively the relative semicircle ring body of opening with right half snap ring 4, and left half snap ring 3 is fixed together respectively and forms annulus with the top and bottom of right half snap ring 4; Half snap ring 3 has respectively mutual corresponding inner convex platform 1 with the interior front of right half snap ring 4 on a left side, is distributed with the optical fiber mounting groove 2 that at least two front and back communicate in the inside circumference of annulus.Fashionable under the well head at string of casing, can left half snap ring 3 and right half snap ring 4 be installed at the position that needs arbitrarily to measure, the inner convex platform 1 by the annulus front portion fixes in the string of casing outside, and measuring fiber is sleeved in the optical fiber mounting groove 2; Easy to use; When elastic bending deflection occurs in the rear portion of string of casing at annulus when,, measuring fiber can be measured the elastic bending deflection of string of casing, for the distortion of string of casing provides early stage judgement and maintenance.
Can according to actual needs, above-mentioned fixed stress test clip be made further optimization and/or improvements:
As shown in Figure 1, there is respectively left horizontal draw-in groove the top and bottom of half snap ring 3 on a left side, there is respectively right horizontal draw-in groove the top and bottom of the right side half snap ring 4 corresponding with left horizontal draw-in groove, on half snap ring 3 of the left side on left horizontal draw-in groove right side and the connecting through hole of mutual correspondence arranged respectively on the right semi-ring in right horizontal draw-in groove left side, be separately installed with coupling bolt 5 in left horizontal draw-in groove, the right-hand member of coupling bolt 5 passes respectively connecting through hole and is fixed in the right horizontal draw-in groove by attaching nut 6.Be convenient to the installation and removal of left half snap ring 3 and right half snap ring 4.
As required, inner convex platform is annular inner convex platform.
As required, the narrow taper type in wide both sides in the middle of the outside of annulus is.Be convenient to string of casing and in the situation of the annulus that left half snap ring 3 and 4 formation of right half snap ring are installed, pass through the well head RIH.
As shown in Figure 1, as preferably, be distributed with the optical fiber mounting groove 2 that six front and back communicate in the annulus inside circumference.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
Claims (9)
1. a fixed stress test clip is characterized in that comprising left half snap ring and right half snap ring; Left half snap ring is respectively the relative semicircle ring body of opening with right half snap ring, and the top and bottom of left half snap ring and right half snap ring are fixed together respectively and form annulus; Half snap ring has respectively mutual corresponding inner convex platform with the interior front of right half snap ring on a left side, is distributed with the optical fiber mounting groove that at least two front and back communicate in the inside circumference of annulus.
2. fixed stress test clip according to claim 1, there is respectively left horizontal draw-in groove the top and bottom that it is characterized in that left half snap ring, there is respectively right horizontal draw-in groove the top and bottom of the right side half snap ring corresponding with left horizontal draw-in groove, on a left side half snap ring on left horizontal draw-in groove right side and the connecting through hole of mutual correspondence arranged respectively on the right semi-ring in right horizontal draw-in groove left side, be separately installed with coupling bolt in left horizontal draw-in groove, the right-hand member of coupling bolt passes respectively connecting through hole and is fixed in the right horizontal draw-in groove by the attaching nut.
3. fixed stress test clip according to claim 1 and 2 is characterized in that inner convex platform is annular inner convex platform.
4. fixed stress test clip according to claim 1 and 2 is characterized in that the outside of annulus is the narrow taper type in middle wide both sides.
5. fixed stress test clip according to claim 3 is characterized in that the outside of annulus is the narrow taper type in middle wide both sides.
6. fixed stress test clip according to claim 1 and 2 is characterized in that the annulus inside circumference is distributed with the optical fiber mounting groove that six front and back communicate.
7. fixed stress test clip according to claim 3 is characterized in that the annulus inside circumference is distributed with the optical fiber mounting groove that six front and back communicate.
8. fixed stress test clip according to claim 4 is characterized in that the annulus inside circumference is distributed with the optical fiber mounting groove that six front and back communicate.
9. fixed stress test clip according to claim 5 is characterized in that the annulus inside circumference is distributed with the optical fiber mounting groove that six front and back communicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269707 CN202661048U (en) | 2012-06-08 | 2012-06-08 | Fixed type stress test clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220269707 CN202661048U (en) | 2012-06-08 | 2012-06-08 | Fixed type stress test clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661048U true CN202661048U (en) | 2013-01-09 |
Family
ID=47455951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220269707 Expired - Fee Related CN202661048U (en) | 2012-06-08 | 2012-06-08 | Fixed type stress test clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661048U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533389A (en) * | 2014-12-09 | 2015-04-22 | 中国石油天然气集团公司 | Whole-course online stress detection device for oil-gas well underground casing string distributed optical fibers |
| CN105604509A (en) * | 2016-03-03 | 2016-05-25 | 中国海洋石油总公司 | Electric submersible pump pipe string for optical fiber monitoring of horizontal well |
| CN111504217A (en) * | 2020-04-28 | 2020-08-07 | 南通大学 | Tree radial growth deformation measurement and real-time monitoring device and working method thereof |
-
2012
- 2012-06-08 CN CN 201220269707 patent/CN202661048U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533389A (en) * | 2014-12-09 | 2015-04-22 | 中国石油天然气集团公司 | Whole-course online stress detection device for oil-gas well underground casing string distributed optical fibers |
| CN105604509A (en) * | 2016-03-03 | 2016-05-25 | 中国海洋石油总公司 | Electric submersible pump pipe string for optical fiber monitoring of horizontal well |
| CN111504217A (en) * | 2020-04-28 | 2020-08-07 | 南通大学 | Tree radial growth deformation measurement and real-time monitoring device and working method thereof |
| CN111504217B (en) * | 2020-04-28 | 2022-06-03 | 南通大学 | Tree radial growth deformation measurement and real-time monitoring device and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107478370B (en) | Device and method for monitoring displacement and strain stress of whole roadway | |
| CN202661048U (en) | Fixed type stress test clamp | |
| CN201517920U (en) | Fiber Bragg grating string type multi-point displacement sensor | |
| CN109520666B (en) | Nondestructive monitoring method for pressure inside pipeline | |
| CN207050903U (en) | Force measuring device in a kind of drag-line based on cable body strain | |
| CN2934569Y (en) | Optical fiber test device suitable for permanent oil gas production well | |
| CN103410088A (en) | Intelligent basin-type support | |
| CN102914282A (en) | Monitoring and measuring method using displacement sensor to measure tunnel deformation | |
| CN102301129A (en) | System for measuring deformations of wind turbine blades during static tests | |
| CN108680115A (en) | A kind of device for monitoring the deformation of piping lane bidirectional displacement | |
| CN202304740U (en) | Tooling for calibrating pull rod type displacement sensor | |
| CN103061746B (en) | The omnidistance online stress detection device of the distributed optical cable of Oil/gas Well down-hole casing string | |
| CN201155966Y (en) | Optical fibre grating displacement meter | |
| CN208350030U (en) | A kind of plug and pull type fiber Bragg grating strain sensor mounting device | |
| CN203223216U (en) | Distributed optical cable whole course online stress detector for under well casing strings of oil and gas wells | |
| CN106770481B (en) | Bridge sling monitoring sensor | |
| CN203514179U (en) | Intelligent pot bearing | |
| CN104457690A (en) | Sensing rod for monitoring building settlement and monitoring method using the same | |
| CN202659225U (en) | Linked type stress test short joint | |
| CN103134626A (en) | Inhaul cable stress monitoring device | |
| CN107219033B (en) | Assembled anchor dynamometer and application method | |
| CN109341564A (en) | A kind of FBG strain gauge | |
| CN210426521U (en) | Sedimentation monitoring device based on fiber bragg grating | |
| CN114963024A (en) | Monitoring device and detection system for oil and gas pipeline and installation method of detection system | |
| CN104533389A (en) | Whole-course online stress detection device for oil-gas well underground casing string distributed optical fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20210608 |