CN103790542B - A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method - Google Patents
A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method Download PDFInfo
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- CN103790542B CN103790542B CN201310416443.4A CN201310416443A CN103790542B CN 103790542 B CN103790542 B CN 103790542B CN 201310416443 A CN201310416443 A CN 201310416443A CN 103790542 B CN103790542 B CN 103790542B
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Abstract
A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method, belongs to mechanical oil recovery equipment technical field.Gland flange hangs flange by bolt and nut connection, there is gasket ring between gland flange and suspension flange, slip assemblies are hung in the inner chamber connection for hanging flange, hang the other end coupling adapter of flange, the inner chamber connection O-ring of crossover sub, high temperature resistant self-sealing rubber core, the other end connection lower seal of crossover sub, the other end connection pressure cap of lower seal, the inner chamber connection upper isolating ring of lower seal, lower isolating ring, symmetrical connection grease pouring valve respectively on the hole wall of lower seal.It is an advantage of the invention that solving the requirement of the Operating Pressure of heavy crude heat extraction well test coiled tubing, using suspension and anti-top bi-directional slip modular construction and pressure self-closing glue core, simple structure, reasonable in design, reliable operation, equipment support is provided for coiled tubing movable type high temperature test, with good live application prospect.
Description
Technical field
The present invention relates to a kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method, belong to machinery
Technical field of oil extraction equipment.
Background technology
Xinjiang Oilfield starts viscous crude and super heavy oil development in recent years on a large scale, mainly has steam soak and SAGD super-viscous oils to open
Adopt and fireflood exploitation etc. technique, continuous pipe downhole testing is one of important step.Project experimental stage is currently in, per
Mouthful well is all prefabricated with test coiled tubing, handles up preheating and when turning to take out operation in the cycle, needs to put test coiled tubing,
According to the requirement of well workover developing direction with pressure at present, corollary equipment will meet the function of Operating Pressure；In addition, whole in the later stage
When SAGD production technologies are run, if all prefabricated coiled tubing of every mouthful of well is tested, production cost is higher, it is considered to using portable
Downhole testing, needs to put test coiled tubing at any time, therefore devises and meets high temperature wellheadpressure to put high temperature test continuous
The hanger sealing device of oil pipe.
Content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of high temperature test coiled tubing that puts with pressure and hang sealing
Device and using method, test the suspension sealing of coiled tubing, and can meet the later stage during predominantly realizing super heavy oil recovery
The technological requirement for removing with pressure, is that super-viscous oil heating exploitation provides the necessary technical support.
A kind of high temperature is with pressure to put test coiled tubing suspension sealing device, mainly by gland flange, gasket ring, suspension
Slip assemblies, hang flange, O-ring, high temperature resistant self-sealing rubber core, crossover sub, upper isolating ring, lower seal, grease pouring valve, under every
Parts group such as ring, pressure cap etc. is constituted, and is provided equipment support for the later stage test continuous oil pipe operation that puts with pressure, is realized super thick
During oily production practice, the test coiled tubing purpose for removing with pressure, improves the security and efficiency of construction of underground work,
Reduce labour intensity simultaneously, save substantial amounts of production cost.
A kind of high temperature is with pressure to put test coiled tubing suspension sealing device, and gland flange is hung by bolt and nut connection
Flange, has gasket ring between gland flange and suspension flange, and slip assemblies are hung in the inner chamber connection for hanging flange, hang flange
Other end coupling adapter, crossover sub inner chamber connection O-ring, high temperature resistant self-sealing rubber core, the other end of crossover sub
Connection lower seal, the other end connection pressure cap of lower seal, the inner chamber connection upper isolating ring of lower seal, lower isolating ring, lower sealing
Symmetrical connection grease pouring valve respectively on the hole wall of body.
A kind of high temperature using method for putting test coiled tubing suspension sealing device with pressure, containing following steps；By under
Spacer ring and lower seal bottom load, and tighten pressure cap, install grease pouring valve, load upper isolating ring from lower seal top, tighten conversion
High temperature resistant self-sealing rubber core and O-ring are loaded crossover sub top by joint, will hang flange be connected with crossover sub and tighten,
It is sequentially loaded into suspension slip assemblies, gasket ring and gland flange is installed, with tightens bolt and nut；
Grease pouring valve injection high-temperature medium is sealed, control opens and closes the keying that high temperature grease pouring valve is realized in the rotation of screw,
Suspension and anti-top bi-directional slip modular construction is employed, and the with pressure of coiled tubing is tested using high temperature resistant self-sealing rubber core and is removed；Root
Self-sealing rubber core is forced to hold coiled tubing tightly according to borehole pressure.
It is an advantage of the invention that solve the requirement of the Operating Pressure of heavy crude heat extraction well test coiled tubing, using hanging and
Anti- top bi-directional slip modular construction and pressure self-closing glue core, simple structure are reasonable in design, and reliable operation is coiled tubing movement
Formula high temperature test is supported there is provided equipment, with good live application prospect.
Description of the drawings
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can more fully understand the present invention with
And the adjoint advantage of many of which is easily learnt, but accompanying drawing described herein is used for providing a further understanding of the present invention,
The part of the present invention is constituted, the schematic description and description of the present invention is used for explaining the present invention, does not constitute to this
Bright improper restriction, such as figure are wherein：
Fig. 1 is the structural representation of the present invention.
The present invention is further described with reference to the accompanying drawings and examples.
Specific embodiment
Obviously, those skilled in the art belong to the guarantor of the present invention based on many modifications and variations done by spirit of the invention
Shield scope.
Embodiment 1：As shown in figure 1, a kind of high temperature is with pressure to put test coiled tubing suspension sealing device, gland flange 1
Flange 5 is hung by the connection of bolt and nut 3, is had gasket ring 2 between gland flange 1 and suspension flange 5, is hung the interior of flange 5
Chamber connection suspension slip assemblies 4, the other end coupling adapter 8 of suspension flange 5, the inner chamber connection O-ring 6 of crossover sub 8,
High temperature resistant self-sealing rubber core 7, the other end connection lower seal 10 of crossover sub 8, the other end connection pressure cap 13 of lower seal 10,
The inner chamber connection upper isolating ring 9 of lower seal 10, lower isolating ring 12, symmetrical connection grease pouring valve 11 respectively on the hole wall of lower seal 10.
The high temperature using method for putting test coiled tubing suspension sealing device with pressure, first by lower isolating ring 12 and lower sealing
10 bottom of body loads, and tightens pressure cap 13, installs grease pouring valve 11, and lower seal lower end screw thread is connected with well head, close under
Envelope body top loads upper isolating ring 9, tightens crossover sub 8, high temperature resistant self-sealing rubber core 7 and O-ring 6 are loaded crossover sub top,
Flange 5 will be hung to be connected with crossover sub 8 and tighten, pass through test coiled tubing from components above centre bore, when continuous oil
When pipe is lowered into specified location, installs and hang slip assemblies 4 and be seated in suspension flange endoporus, gasket ring 2 and gland method are installed
Orchid, with bolt and nut is tightened, whole device scene is complete by installing.
There is high temperature grease pouring valve, high-temperature medium can be injected and sealed, high temperature grease pouring valve is realized by the rotation for opening and closing screw
The keying of grease pouring valve, simple structure sealed reliable
High temperature resistant self-sealing rubber core employs pressure self-closing structure, self-sealing rubber core can be forced to hold continuous oil tightly according to borehole pressure
Pipe, pressure more high sealing are more reliable.
Hitch employs bi-directional slip structure, has not only met the purpose of suspension tubing string but also has achieved anti-top function.
Embodiment 2：As shown in figure 1, a kind of high temperature is with pressure to put test coiled tubing suspension sealing device, gland flange 1
Flange 5 is hung by the connection of bolt and nut 3, gland flange 1 between suspension flange 5 has gasket ring 2, hangs flange 5
Slip assemblies 4 are hung in inner chamber connection, hang the other end coupling adapter 8 of flange 5, the inner chamber connection O-ring of crossover sub 8
6th, high temperature resistant self-sealing rubber core 7, the other end connection lower seal 10 of crossover sub 8, the other end connection pressure cap of lower seal 10
13, the inner chamber connection upper isolating ring 9 of lower seal 10, lower isolating ring 12, symmetrical connection grease pouring valve respectively on the hole wall of lower seal 10
11.
A kind of high temperature using method for putting test coiled tubing suspension sealing device with pressure, containing following steps；
Lower isolating ring 12 and 10 bottom of lower seal are loaded, pressure cap 13 is tightened, grease pouring valve 11 is installed, from lower seal top
Load upper isolating ring 9, tighten crossover sub 8, high temperature resistant self-sealing rubber core 7 and O-ring 6 are loaded crossover sub top, by suspension method
Blue 5 are connected with crossover sub 8 and tighten, are sequentially loaded into suspension slip assemblies 4, installation gasket ring 2 and gland flange, with tightening
Bolt and nut；
Grease pouring valve injection high-temperature medium is sealed, control opens and closes the keying that high temperature grease pouring valve is realized in the rotation of screw,
Suspension and anti-top bi-directional slip modular construction is employed, and the with pressure of coiled tubing is tested using high temperature resistant self-sealing rubber core and is removed；Root
Self-sealing rubber core is forced to hold coiled tubing tightly according to borehole pressure.
As described above, explained to embodiments of the invention, but as long as essentially without departing from this
Bright inventive point and effect can have a lot of deformations, and this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (2)
1. a kind of high temperature is with pressure puts test coiled tubing suspension sealing device, it is characterised in that including gland flange, sealing gasket
Ring, suspension slip assemblies, suspension flange, O-ring, high temperature resistant self-sealing rubber core, crossover sub, upper isolating ring, lower seal, greasing
Valve, lower isolating ring, pressure cap, gland flange hang flange by bolt and nut connection, have sealing between gland flange and suspension flange
Gasket ring, hang flange inner chamber connection hang slip assemblies, hang flange other end coupling adapter, crossover sub interior
Chamber connection O-ring, high temperature resistant self-sealing rubber core, the other end connection lower seal of crossover sub, the other end connection of lower seal
Pressure cap, the inner chamber connection upper isolating ring of lower seal, lower isolating ring, symmetrical connection grease pouring valve respectively on the hole wall of lower seal.
2. a kind of high temperature is with pressure puts the using method for testing coiled tubing suspension sealing device, it is characterised in that containing following step
Suddenly；Lower isolating ring and lower seal bottom are loaded, pressure cap is tightened, grease pouring valve is installed, load upper isolating ring from lower seal top, on
High temperature resistant self-sealing rubber core and O-ring are loaded crossover sub top by tight crossover sub, will be hung flange and are connected simultaneously with crossover sub
Tighten, be sequentially loaded into suspension slip assemblies, gasket ring and gland flange, nut of firmly bolting on are installed；
Grease pouring valve injection high-temperature medium is sealed, control opens and closes the keying that grease pouring valve is realized in the rotation of screw, employs outstanding
Hang and anti-top bi-directional slip modular construction, the with pressure of coiled tubing is tested using high temperature resistant self-sealing rubber core and put；According to well internal pressure
Power forces high temperature resistant self-sealing rubber core to hold coiled tubing tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416443.4A CN103790542B (en) | 2013-09-13 | 2013-09-13 | A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416443.4A CN103790542B (en) | 2013-09-13 | 2013-09-13 | A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method |
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| Publication Number | Publication Date |
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| CN103790542A CN103790542A (en) | 2014-05-14 |
| CN103790542B true CN103790542B (en) | 2017-03-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107299833B (en) * | 2017-07-06 | 2020-10-23 | 中国石油大学(北京) | Bushing leak detection device 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 |
| 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 |
| CN112838554B (en) * | 2021-01-15 | 2022-02-15 | 西南石油大学 | Electric submersible pump cable operation wellhead device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203515433U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | High-temperature pressure pulling test continuous oil pipe suspension sealing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 | Wellhead suspension sealing device for coil tubing |
| CN202745789U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Wellhead dual-seal coiled tubing hanging 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 |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203515433U (en) * | 2013-09-13 | 2014-04-02 | 中国石油天然气股份有限公司 | High-temperature pressure pulling test continuous oil pipe suspension sealing device |
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