CN202383025U - Full-size outside extrusion collapse testing device for petroleum casing pipe - Google Patents
Full-size outside extrusion collapse testing device for petroleum casing pipe Download PDFInfo
- Publication number
- CN202383025U CN202383025U CN2011205373310U CN201120537331U CN202383025U CN 202383025 U CN202383025 U CN 202383025U CN 2011205373310 U CN2011205373310 U CN 2011205373310U CN 201120537331 U CN201120537331 U CN 201120537331U CN 202383025 U CN202383025 U CN 202383025U
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- cylindrical shell
- seal
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- petroleum casing
- flange
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Abstract
The utility model relates to the technical field of testing devices for engineering tubular products and mating components thereof, in particular relates to a full-size outside extrusion collapse testing device for a petroleum casing pipe. Similar devices in the prior art are difficult to meet the engineering requirement in the aspects of testing error, pressure grade, testing efficiency, cost, service life and the like. In order to overcome the disadvantages existing in the prior art, the utility model provides the technical scheme as follows the full-size outside extrusion collapse testing device for the petroleum casing pipe comprises a horizontal and accumbent cylindrical barrel, seal assemblies, a supporting frame and a medium pressurization unit, wherein the seal assemblies are arranged inside the two ends of the barrel, an inspection hole is arranged on the wall of the barrel, a conduit is communicated with the barrel through the inspection hole, the other end of the conduit is connected with the medium pressurization unit, and the lower part of the barrel is provided with a release valve. The full-size outside extrusion collapse testing device for the petroleum casing pipe can meet the requirements of engineering technology.
Description
Technical field
The utility model relates to the proving installation technical field of engineering tubing and supporting member thereof, is specifically related to the full-scale outer extrusion of a kind of petroleum casing pipe and ruins test unit.
Background technology
The external pressure collapse resistance of petroleum casing pipe is one of its most important performance index; Especially As China's oil industrial expansion; The oil gas well of harsh working conditions such as deep-well, ultra deep well, high-pressure gas well, hp-ht well is more and more; Sleeve pipe anti-squeezed to ruin performance requirement also increasingly high, because of the oil gas well failure accidents that the collapse resistance deficiency of sleeve pipe causes also more and more.Analyzing its failure cause, mainly is more because influence the factor of the actual collapse resistance of sleeve pipe, like the strength of materials of body; The wall thickness uniformity coefficient, interior external diameter ovality, the ratio of external diameter and wall thickness and pipe residual stress, uneven load etc.; And the collapsing pressure formula of all deriving according to desirable circular section in the design at present carries out the check of collapsing strength; Be difficult to accurately reflect that actual anti-the squeezing of tubing ruin performance, thereby influence the oil field practical effect, so how to test the actual collapse resistance of sleeve pipe; Estimate the anti-factor of ruining performance of squeezing of sleeve pipe that influences; Seem particularly important for petroleum engineering, simultaneously, the collapse resistance that accurately tests out sleeve pipe for safe in utilization, the development of new high collapse strength of the design level that improves sleeve pipe, sleeve pipe, reduce the oil field failure accidents and also have great importance.
Ruin performance for accurate test and anti-the squeezing of estimating tubing, need set up the full-scale outer extrusion of a cover petroleum casing pipe and ruin test unit, can test out the collapse resistance of tubing conveniently, accurately.Though there is similar device the home and abroad at present, is difficult to satisfy requirement of engineering at aspects such as test error, pressure rating, testing efficiency, cost, life-spans, can't carries out industry and promote.And the scope of application of oil country tubular goods is very extensive, ruins test if can not carry out necessary outer extrusion to it, will cause the generation of all kinds of danger.
The utility model content
The utility model provides the full-scale outer extrusion of a kind of petroleum casing pipe to ruin test unit, to overcome prior art outer extrusion of worker's petroleum casing pipe is ruined the deficiency that exists in the test, satisfies the needs of engineering.
For overcoming the deficiency that prior art exists, the technical scheme that the utility model provides is: test unit is ruined in the full-scale outer extrusion of a kind of petroleum casing pipe, comprises the columniform cylindrical shell of horizontal accumbency, seal assembly, support frame and medium compress cell; Said cylindrical shell is set up on the support frame; The two ends of said cylindrical shell are provided with the end cap flange, are evenly equipped with coupling bolt on the end cap flange, and the end cap flange is provided with end cap flange suspension hook; Set inside has seal assembly at the two ends of cylindrical shell, and seal assembly is connected with the end cap flange; Said cylindrical shell tube wall is provided with and detects the hole, and conduit is communicated with cylindrical shell through detecting the hole, and the other end of conduit is connected with the medium compress cell; The bottom of said cylindrical shell is provided with drain valve.
Above-mentioned seal assembly comprises first seal flange, elaxtic seal and second seal flange of ring-type, and elaxtic seal is located between first seal flange and second seal flange, and the three is connected as one by interior square bolt.
Also comprise control module, be equipped with pressure transducer on the said cylindrical shell, pressure transducer links to each other with control module with the medium compress cell respectively through signal cable.
Compared with prior art, the utility model has the advantages that:
1. the working condition of emulation is provided, can have truly reflected the situation of tubing and supporting member thereof: squeezed at the tested tubing of test and ruin performance simultaneously, self sealss are realized at the tested tubing two ends that deform.In the process of the test, first seal flange, elaxtic seal and second seal flange are through the seal assembly that interior square bolt connects as one, after passing sample and being arranged in the cylindrical shell, behind interior square bolt pretension; Will form initial sealing, and form the sealing load chamber, along with pressure becomes big gradually; Elaxtic seal in the seal assembly at cylindrical shell two ends exerted pressure also can rise greatly, form sealing, pressure is big more; Sealing effectiveness is good more, thereby realizes self sealss, simultaneously; Because sample is in free elongation state, sample is not produced additional load, process of the test is more pressed close to real working condition.
2. agent structure is a horizontal cylinder, and two ends have a plurality of threaded fasteners to be fastenedly connected, and structure can tolerate the high pressure of 100-350MPa, can realize large scale plate loading test.
3. the cylindrical shell of the utility model is a complete structure, does not occur being welded to connect, and end cap flange and cylindrical shell adopt screw threads for fastening, has realized the conveniency of being convenient to load and unload of system.
4. this test unit can be accomplished the external pressure test of petroleum casing pipe ideally; Its structure has effectively overcome the not round influence to sealing effectiveness of body self; Significantly improved the test pressure grade of system, maximum test pressure reaches 350MPa through test, far above the pressure rating of present 200MPa.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model.
Fig. 2 is the structural representation of seal assembly.
Description of reference numerals is following:
1. medium compress cell, 2. control module, 3. end cap suspension hook, 4. conduit, 5. detection hole,
6. cylindrical shell, 7. signal cable, 8. pressure transducer, 9. seal assembly, 10. end cap flange,
11. sample, 12. support frames, 13. drain valves, 14 second seal flanges, 15 interior square bolts,
16. first seal flange, 17 elaxtic seals.
Embodiment
To combine the many utility model of accompanying drawing at length to explain below.
Referring to Fig. 1, test unit is ruined in the full-scale outer extrusion of a kind of petroleum casing pipe, comprises columniform cylindrical shell 6, seal assembly 9, support frame 12, control module 2 and the medium compress cell 1 of horizontal accumbency.Said cylindrical shell 6 is set up on the support frame 12; The two ends of cylindrical shell 6 are provided with end cap flange 10, are evenly equipped with coupling bolt on the end cap flange 10, and end cap flange 10 is provided with end cap flange suspension hook 3; Set inside has seal assembly 9 at the two ends of cylindrical shell 6; Seal assembly 9 is connected with end cap flange 10, and in the present embodiment, said seal assembly 9 comprises first seal flange 16, elaxtic seal 17 and second seal flange 14 of ring-type; Elaxtic seal 17 is located between first seal flange 16 and second seal flange 14, and the three is connected as one by interior square bolt 16.Said cylindrical shell 6 tube walls are provided with and detect hole 5, and conduit 4 is communicated with cylindrical shell 6 through detecting hole 5, and the other end of conduit 4 is connected with medium compress cell 1.Be equipped with pressure transducer 8 on the said cylindrical shell 6, pressure transducer 8 links to each other with control module 2 with medium compress cell 1 respectively through signal cable 7.The bottom of said cylindrical shell 6 is provided with drain valve 13.
When test is ruined in extrusion outside carrying out:
(1) earlier seal assembly 9 is installed at sample 11 two ends after, pass cylindrical shell together and be positioned in the cylindrical shell 6, the coupling bolt of seal assembly 9 and end cap flange 10 is fastening, and formation sealing load chamber is used to the medium of exerting pressure between sample 16 outer walls and cylindrical shell 6 inwalls.
(2) open medium compress cell 1 and control unit module 2, the automatic/hand control medium (water or oil) of exerting pressure injects in the sealing load chamber through being installed on conduit 4 on the cylindrical shell 6 medium of will exerting pressure, and realizes the loading to sample 11.
(4) control unit module 2 is accomplished data acquisition, transmission, test monitoring etc.
(5) experiment finishes, and the medium of exerting pressure is discharged through drain valve 13, and unloading end cap flange 10 and seal assembly 9 take out tested sample 11.
Claims (3)
1. test unit is ruined in the full-scale outer extrusion of petroleum casing pipe, it is characterized in that: comprise the columniform cylindrical shell (6) of horizontal accumbency, seal assembly (9), support frame (12) and medium compress cell (1); Said cylindrical shell (6) is set up on the support frame (12); The two ends of said cylindrical shell (6) are provided with end cap flange (10); The end cap flange is evenly equipped with coupling bolt on (10); End cap flange (10) is provided with end cap flange suspension hook (3), in the two ends set inside of cylindrical shell (6) seal assembly (9) is arranged, and seal assembly (9) is connected with end cap flange (10); Said cylindrical shell (6) tube wall is provided with and detects hole (5), and conduit (4) is communicated with cylindrical shell (6) through detecting hole (5), and the other end of conduit (4) is connected with medium compress cell (1); The bottom of said cylindrical shell (6) is provided with drain valve (13).
2. test unit is ruined in full-scale outer extrusion according to the said a kind of petroleum casing pipe of claim 1; It is characterized in that: said seal assembly (9) comprises first seal flange (16), elaxtic seal (17) and second seal flange (14) of ring-type; Elaxtic seal (17) is located between first seal flange (16) and second seal flange (14), and the three is connected as one by interior square bolt (16).
3. ruin test unit according to claim 1 or the full-scale outer extrusion of 2 said a kind of petroleum casing pipes; It is characterized in that: also comprise control module (2); Be equipped with pressure transducer (8) on the said cylindrical shell (6), pressure transducer (8) links to each other with control module (2) with medium compress cell (1) respectively through signal cable (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373310U CN202383025U (en) | 2011-12-21 | 2011-12-21 | Full-size outside extrusion collapse testing device for petroleum casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373310U CN202383025U (en) | 2011-12-21 | 2011-12-21 | Full-size outside extrusion collapse testing device for petroleum casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383025U true CN202383025U (en) | 2012-08-15 |
Family
ID=46631520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205373310U Expired - Fee Related CN202383025U (en) | 2011-12-21 | 2011-12-21 | Full-size outside extrusion collapse testing device for petroleum casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419286A (en) * | 2011-12-21 | 2012-04-18 | 西安三维应力工程技术有限公司 | Full-size external pressure collapse test device of petroleum casing pipe |
| CN105352807A (en) * | 2015-11-16 | 2016-02-24 | 西南石油大学 | Bent casing pipe non-uniform collapse strength simulation test method and device |
| CN107560946A (en) * | 2017-09-25 | 2018-01-09 | 苏州热工研究院有限公司 | It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance |
| CN112284914A (en) * | 2020-10-21 | 2021-01-29 | 天津大学 | Experimental device for applying initial ovality to ocean oil and gas pipeline |
-
2011
- 2011-12-21 CN CN2011205373310U patent/CN202383025U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419286A (en) * | 2011-12-21 | 2012-04-18 | 西安三维应力工程技术有限公司 | Full-size external pressure collapse test device of petroleum casing pipe |
| CN105352807A (en) * | 2015-11-16 | 2016-02-24 | 西南石油大学 | Bent casing pipe non-uniform collapse strength simulation test method and device |
| CN107560946A (en) * | 2017-09-25 | 2018-01-09 | 苏州热工研究院有限公司 | It is a kind of to be used to detect pilot system and detection method that tubing creep collapses performance |
| CN112284914A (en) * | 2020-10-21 | 2021-01-29 | 天津大学 | Experimental device for applying initial ovality to ocean oil and gas pipeline |
| CN112284914B (en) * | 2020-10-21 | 2022-05-24 | 天津大学 | Experimental device for applying initial ovality to ocean oil and gas pipeline |
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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: 20120815 Termination date: 20171221 |