CN103790542A - Coiled tubing suspension sealing device for testing under high-temperature belt pressure and using method - Google Patents
Coiled tubing suspension sealing device for testing under high-temperature belt pressure and using method Download PDFInfo
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- CN103790542A CN103790542A CN201310416443.4A CN201310416443A CN103790542A CN 103790542 A CN103790542 A CN 103790542A CN 201310416443 A CN201310416443 A CN 201310416443A CN 103790542 A CN103790542 A CN 103790542A
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000000725 suspension Substances 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 10
- 210000004907 gland Anatomy 0.000 claims abstract description 15
- 239000004519 grease Substances 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000003921 oil Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 3
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 4
- 238000010796 Steam-assisted gravity drainage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A coiled tubing suspension sealing device for testing under high-temperature pressure and a use method thereof belong to the technical field of mechanical oil extraction equipment. The gland flange is connected with the suspension flange through bolts and nuts, a sealing gasket ring is arranged between the gland flange and the suspension flange, the inner cavity of the suspension flange is connected with a suspension slip assembly, the other end of the suspension flange is connected with a conversion joint, the inner cavity of the conversion joint is connected with an O-shaped ring and a high-temperature-resistant self-sealing rubber core, the other end of the conversion joint is connected with a lower seal body, the other end of the lower seal body is connected with a pressure cap, the inner cavity of the lower seal body is connected with an upper spacing ring and a lower spacing ring, and the hole wall of the lower. The invention has the advantages of solving the requirement of the coiled tubing under-pressure operation for testing the heavy oil thermal production well, adopting the suspension and anti-jacking bidirectional slip assembly structure and the pressure self-sealing rubber core, having simple structure, reasonable design and reliable work, providing equipment support for the mobile high-temperature test of the coiled tubing and having good field application prospect.
Description
Technical field
The present invention relates to a kind of high temperature test coiled tubing suspension sealing device and using method of putting with pressure, belong 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 technique 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, in the time that 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 the hanger sealing device that meets high temperature wellheadpressure and put high temperature test coiled tubing.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of high temperature test coiled tubing suspension sealing device and using method of putting 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, put test continuous oil pipe operation for the later stage is with pressure 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 are 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, pack upper isolating ring into from lower seal body top, 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; Force self-sealing rubber core to hold coiled tubing tightly according to borehole pressure.
Advantage of the present invention is the requirement that has solved the Operating Pressure of 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 present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is structural representation of the present invention.
Below in conjunction with drawings and Examples, the present invention is further described.
The specific embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
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, pack upper isolating ring 9 into from lower seal body top, 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, in the time that 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; Force self-sealing rubber core to hold coiled tubing tightly according to borehole pressure.
As mentioned above, embodiments of the invention are explained, but as long as not departing from fact inventive point of the present invention 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 scope of the present invention.
Claims (2)
1. the high temperature test coiled tubing suspension sealing device that puts with pressure, 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.
2. a high temperature using method that puts test coiled tubing suspension sealing device with pressure, is characterized in that containing following steps; Lower isolating ring and lower seal body bottom are packed into, tighten pressure cap, grease pouring valve is installed, pack upper isolating ring into from lower seal body top, 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; Force self-sealing rubber core to hold coiled tubing tightly according to borehole pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416443.4A CN103790542B (en) | 2013-09-13 | 2013-09-13 | Coiled tubing suspension sealing device for testing under high-temperature belt pressure and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416443.4A CN103790542B (en) | 2013-09-13 | 2013-09-13 | Coiled tubing suspension sealing device for testing under high-temperature belt pressure and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103790542A true CN103790542A (en) | 2014-05-14 |
| CN103790542B CN103790542B (en) | 2017-03-15 |
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| CN201310416443.4A Active CN103790542B (en) | 2013-09-13 | 2013-09-13 | Coiled tubing suspension sealing device for testing under high-temperature belt pressure and using method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370235A (en) * | 2015-12-15 | 2016-03-02 | 中国石油化工股份有限公司 | Wellhead sealing device |
| CN107299833A (en) * | 2017-07-06 | 2017-10-27 | 中国石油大学(北京) | A kind of Casing Detection leak source apparatus and method |
| CN107387015A (en) * | 2017-08-24 | 2017-11-24 | 中国石油集团渤海石油装备制造有限公司 | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE |
| CN108952613A (en) * | 2018-07-20 | 2018-12-07 | 中国石油天然气集团公司 | Oil pipe reduced pipe connection frame and operating device |
| CN112838554A (en) * | 2021-01-15 | 2021-05-25 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1215318A (en) * | 1983-09-06 | 1986-12-16 | Joy Manufacturing Company | Wellhead |
| RU2190081C2 (en) * | 2000-01-31 | 2002-09-27 | Общество с ограниченной ответственностью "Газобезопасность" | Bed to pressure test oil and gas production equipment |
| CN201915888U (en) * | 2010-12-17 | 2011-08-03 | 中国石油天然气股份有限公司 | Continuous oil pipe wellhead suspension sealing device |
| CN202745789U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Wellhead double-sealing continuous oil pipe suspension device |
| CN202990942U (en) * | 2012-12-26 | 2013-06-12 | 江苏宏泰石化机械有限公司 | Double-seal Christmas tree for conveniently mounting coiled tubing |
| CN203515433U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | High-temperature coiled tubing suspension sealing device for testing under pressure |
-
2013
- 2013-09-13 CN CN201310416443.4A patent/CN103790542B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1215318A (en) * | 1983-09-06 | 1986-12-16 | Joy Manufacturing Company | Wellhead |
| RU2190081C2 (en) * | 2000-01-31 | 2002-09-27 | Общество с ограниченной ответственностью "Газобезопасность" | Bed to pressure test oil and gas production equipment |
| CN201915888U (en) * | 2010-12-17 | 2011-08-03 | 中国石油天然气股份有限公司 | Continuous oil pipe wellhead suspension sealing device |
| CN202745789U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Wellhead double-sealing continuous oil pipe suspension device |
| CN202990942U (en) * | 2012-12-26 | 2013-06-12 | 江苏宏泰石化机械有限公司 | Double-seal Christmas tree for conveniently mounting coiled tubing |
| CN203515433U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | High-temperature coiled tubing suspension sealing device for testing under pressure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107299833A (en) * | 2017-07-06 | 2017-10-27 | 中国石油大学(北京) | A kind of Casing Detection leak source apparatus and method |
| CN107387015A (en) * | 2017-08-24 | 2017-11-24 | 中国石油集团渤海石油装备制造有限公司 | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE |
| CN108952613A (en) * | 2018-07-20 | 2018-12-07 | 中国石油天然气集团公司 | Oil pipe reduced pipe connection frame and operating device |
| CN108952613B (en) * | 2018-07-20 | 2024-01-30 | 中国石油天然气集团公司 | Oil pipe reducing pipe connecting frame and operating device |
| CN112838554A (en) * | 2021-01-15 | 2021-05-25 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
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| Publication number | Publication date |
|---|---|
| CN103790542B (en) | 2017-03-15 |
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