CN203515433U - High-temperature pressure pulling test continuous oil pipe suspension sealing device - Google Patents
High-temperature pressure pulling test continuous oil pipe suspension sealing device Download PDFInfo
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- CN203515433U CN203515433U CN201320567684.4U CN201320567684U CN203515433U CN 203515433 U CN203515433 U CN 203515433U CN 201320567684 U CN201320567684 U CN 201320567684U CN 203515433 U CN203515433 U CN 203515433U
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- oil pipe
- continuous oil
- sealing device
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Abstract
The utility model discloses a high-temperature pressure pulling test continuous oil pipe suspension sealing device, and belongs to the technical field of mechanical oil extraction equipment. A gland flange is connected with a suspension flange through a bolt and a nut, and a sealing ring is arranged between the gland flange and the suspension flange. An inner cavity of the suspension flange is connected with a suspension slip assembly, and the other end of the suspension flange is connected with an adaptor. An inner cavity of the adaptor is connected with an O-shaped ring and a high-temperature-resistant self-sealing rubber core, and the other end of the adaptor is connected with a lower sealing body. The other end of the lower sealing body is connected with a pressing cap, and an inner cavity of the lower sealing body is connected with an upper partition ring and a lower partition ring. Grease injection valves are symmetrically connected to hole walls of the lower sealing body respectively. The high-temperature pressure pulling test continuous oil pipe suspension sealing device has the advantages that requirements for pressure operation of a thickened oil thermal production well testing continuous oil pipe are met, the suspension and ejection prevention dual-direction slip assembly and the pressure self-sealing rubber core are adopted, and the high-temperature pressure pulling test continuous oil pipe suspension sealing device is simple in structure, reasonable in design and reliable in work, provides equipment support for moving high-temperature testing of the continuous oil pipe and has very good field application prospects.
Description
Technical field
The utility model relates to a kind of high temperature test coiled tubing suspension sealing device that puts with pressure, belongs to mechanical oil recovery equip ment technical field.
Background technology
Xinjiang Oilfield starts viscous crude and super heavy oil development in recent years on a large scale, mainly contains the techniques such as steam soak and SAGD super heavy oil recovery and fireflood exploitation, and continuous-tube downhole testing is one of them important step.At present in project experimental stage, every mouthful of well is all prefabricated with test coiled tubing, in handle up preheating and turning while taking out operation of cycle, need to put test coiled tubing, according to the requirement of current well workover developing direction with pressure, corollary equipment will meet the function of Operating Pressure; In addition, when the later stage, whole SAGD production technology was moved, if every mouthful of well all prefabricated coiled tubing is tested, cost of production is higher, consider to adopt Mobile underground test, need to put at any time test coiled tubing, therefore design and met the hanger sealing device that high temperature wellheadpressure puts high temperature test coiled tubing.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of high temperature the test coiled tubing suspension sealing device that puts with pressure, be mainly and realize the suspension sealing of testing coiled tubing in super heavy oil recovery process, and can meet the later stage technological requirement removing with pressure, be the ultra-thick oil thermal power exploitation support that provides the necessary technical.
A kind of high temperature test coiled tubing suspension sealing device that puts with pressure, mainly by gland flange, gasket ring, hang slip assemblies, hang flange, O shape circle, high temperature resistant self-sealing rubber core, crossover sub, upper isolating ring, lower seal body, grease pouring valve, lower isolating ring, the compositions such as component group such as pressure cap, for the later stage is with pressure, put test continuous oil pipe operation device support is provided, realize and in super heavy oil recovery activities, test the coiled tubing object removing with pressure, safety and the efficiency of construction of underground work have been improved, reduce labour intensity simultaneously, save a large amount of cost of production.
A kind of high temperature test coiled tubing suspension sealing device that puts with pressure, gland flange is connected and is hung flange by bolt and nut, between gland flange and suspension flange, there is gasket ring, the inner chamber that hangs flange connects suspension slip assemblies, hang the other end coupling adapter of flange, the inner chamber of crossover sub connects O shape circle, high temperature resistant self-sealing rubber core, the other end of crossover sub connects lower seal body, the other end of lower seal body connects pressure cap, the inner chamber of lower seal body connects upper isolating ring, lower isolating ring, and on the hole wall of lower seal body, symmetry connects respectively grease pouring valve.
A high temperature using method that puts test coiled tubing suspension sealing device with pressure, contains following steps; Lower isolating ring and lower seal body bottom are packed into, tighten pressure cap, grease pouring valve is installed, from lower seal body top, pack upper isolating ring into, tighten crossover sub, pack high temperature resistant self-sealing rubber core and O shape circle into crossover sub top, suspension flange is connected with crossover sub and tightens, pack into successively suspension slip assemblies, gasket ring and gland flange are installed, with tightening bolt and nut;
Grease pouring valve is injected to high-temperature medium and seal, the rotation of controlling keying screw realizes the keying of high temperature grease pouring valve, has adopted and has hung and anti-top bi-directional slip modular construction, utilizes high temperature resistant self-sealing rubber core test the with pressure of coiled tubing to remove; According to borehole pressure, force self-sealing rubber core to hold coiled tubing tightly.
The utility model has the advantages that the requirement of the Operating Pressure that has solved thick oil thermal extraction test coiled tubing, adopt and hang and anti-top bi-directional slip modular construction and pressure self-closing glue core, simple in structure, reasonable in design, reliable operation, for the portable high temperature test of coiled tubing provides device support, there is good on-the-spot application prospect.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the utility model and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide further understanding of the present utility model, form a part of the present utility model, schematic description and description of the present utility model is used for explaining the utility model, do not form improper restriction of the present utility model, as schemed wherein:
Fig. 1 is structural representation of the present utility model.
Below in conjunction with drawings and Examples, the utility model is further illustrated.
The specific embodiment
Obviously, the many modifications and variations that those skilled in the art do based on aim of the present utility model belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, a kind of high temperature test coiled tubing suspension sealing device that puts with pressure, gland flange 1 is connected and is hung flange 5 by bolt and nut 3, between gland flange 1 and suspension flange 5, there is gasket ring 2, the inner chamber that hangs flange 5 connects suspension slip assemblies 4, hang the other end coupling adapter 8 of flange 5, the inner chamber of crossover sub 8 connects O shape circle 6, high temperature resistant self-sealing rubber core 7, the other end of crossover sub 8 connects lower seal body 10, the other end of lower seal body 10 connects pressure cap 13, the inner chamber of lower seal body 10 connects upper isolating ring 9, lower isolating ring 12, on the hole wall of lower seal body 10, symmetry connects respectively grease pouring valve 11.
The high temperature using method that puts test coiled tubing suspension sealing device with pressure, first lower isolating ring 12 and lower seal body 10 bottoms are packed into, tighten pressure cap 13, grease pouring valve 11 is installed, and lower seal body lower end screw thread is connected with well head, from lower seal body top, pack upper isolating ring 9 into, tighten crossover sub 8, pack high temperature resistant self-sealing rubber core 7 and O shape circle 6 into crossover sub top, suspension flange 5 is connected and is tightened with crossover sub 8, to test coiled tubing passes from above assembly centre bore, when coiled tubing is lowered into assigned address, install to hang slip assemblies 4 and be seated in and hang flange endoporus, gasket ring 2 and gland flange are installed, with tightening bolt and nut, whole device is on-the-spot complete by installing.
Have high temperature grease pouring valve, can inject high-temperature medium and seal, high temperature grease pouring valve relies on the rotation of keying screw to realize the keying of grease pouring valve, and sealing simple in structure is reliable
High temperature resistant self-sealing rubber core has adopted pressure self-closing structure, can force self-sealing rubber core to hold coiled tubing tightly according to borehole pressure, and pressure more high sealability is more reliable.
Hitch has adopted bi-directional slip structure, has not only met the object of suspension tubing string but also realized anti-top function.
Embodiment 2: as shown in Figure 1, a kind of high temperature test coiled tubing suspension sealing device that puts with pressure, gland flange 1 is connected and is hung flange 5 by bolt and nut 3, gland flange 1 in and hang between flange 5 and have gasket ring 2, the inner chamber that hangs flange 5 connects suspension slip assemblies 4, hang the other end coupling adapter 8 of flange 5, the inner chamber of crossover sub 8 connects O shape circle 6, high temperature resistant self-sealing rubber core 7, the other end of crossover sub 8 connects lower seal body 10, the other end of lower seal body 10 connects pressure cap 13, the inner chamber of lower seal body 10 connects upper isolating ring 9, lower isolating ring 12, on the hole wall of lower seal body 10, symmetry connects respectively grease pouring valve 11.
A high temperature using method that puts test coiled tubing suspension sealing device with pressure, contains following steps;
Grease pouring valve is injected to high-temperature medium and seal, the rotation of controlling keying screw realizes the keying of high temperature grease pouring valve, has adopted and has hung and anti-top bi-directional slip modular construction, utilizes high temperature resistant self-sealing rubber core test the with pressure of coiled tubing to remove; According to borehole pressure, force self-sealing rubber core to hold coiled tubing tightly.
As mentioned above, embodiment of the present utility model is explained, but as long as not departing from fact inventive point of the present utility model and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection domain of the present utility model.
Claims (1)
1. with pressure the putting of high temperature tested coiled tubing suspension sealing device, it is characterized in that gland flange is connected and hung flange by bolt and nut, between gland flange and suspension flange, there is gasket ring, the inner chamber that hangs flange connects suspension slip assemblies, hang the other end coupling adapter of flange, the inner chamber of crossover sub connects O shape circle, high temperature resistant self-sealing rubber core, the other end of crossover sub connects lower seal body, the other end of lower seal body connects pressure cap, the inner chamber of lower seal body connects upper isolating ring, lower isolating ring, on the hole wall of lower seal body, symmetry connects respectively grease pouring valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567684.4U CN203515433U (en) | 2013-09-13 | 2013-09-13 | High-temperature pressure pulling test continuous oil pipe suspension sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320567684.4U CN203515433U (en) | 2013-09-13 | 2013-09-13 | High-temperature pressure pulling test continuous oil pipe suspension sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515433U true CN203515433U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320567684.4U Withdrawn - After Issue CN203515433U (en) | 2013-09-13 | 2013-09-13 | High-temperature pressure pulling test continuous oil pipe suspension sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203515433U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790542A (en) * | 2013-09-13 | 2014-05-14 | 中国石油天然气股份有限公司 | High-temperature under-pressure test coiled tubing suspending sealing device and using method |
| CN105370235A (en) * | 2015-12-15 | 2016-03-02 | 中国石油化工股份有限公司 | Wellhead sealing device |
-
2013
- 2013-09-13 CN CN201320567684.4U patent/CN203515433U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790542A (en) * | 2013-09-13 | 2014-05-14 | 中国石油天然气股份有限公司 | High-temperature under-pressure test coiled tubing suspending sealing device and using method |
| CN103790542B (en) * | 2013-09-13 | 2017-03-15 | 中国石油天然气股份有限公司 | A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method |
| CN105370235A (en) * | 2015-12-15 | 2016-03-02 | 中国石油化工股份有限公司 | Wellhead sealing device |
| CN105370235B (en) * | 2015-12-15 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of well top sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |