CN103790541A - Three-position multifunctional three-tube wellhead device - Google Patents
Three-position multifunctional three-tube wellhead device Download PDFInfo
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- CN103790541A CN103790541A CN201310103403.4A CN201310103403A CN103790541A CN 103790541 A CN103790541 A CN 103790541A CN 201310103403 A CN201310103403 A CN 201310103403A CN 103790541 A CN103790541 A CN 103790541A
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Abstract
The invention discloses a three-position multifunctional three-tube wellhead device which is designed in order to meet technological requirements of super-heavy oil recovery and realize later-period wellhead operation under pressure. Side passes of a three-tube multi-pass shell of the wellhead device are all connected with casing gate valves. A steam-injection auxiliary pass and a testing auxiliary pass which form a certain elevation angle with a main pass and is expanding in the bottoms are arranged in the side wall of the shell, and ports of the steam-injection auxiliary pass and the testing auxiliary pass are connected with a steam-injection hanger and a testing protection tube hanger respectively. A main pass hanger is arranged in the mains pass of the shell, and the main pass hanger is connected with a tee joint, through which a main gate valve and an oil recovery gate valve are communicated, through an upper flange. The wellhead device adopts spatial multi-position operation and special-shaped tubing design, and is reasonable in structure and reliable working; the requirement for performing production of super-heavy oil thermal recovery, steam injection and testing technology simultaneously can be met, operations of well washing, fluid injection, various oil recovery and well repair are realized, equipment support is provided for operations such as subsequent well repair and sand removal of the main and auxiliary passes under pressure, down-hole operation safety and construction efficiency are improved, labor intensity is reduced, and production cost is saved.
Description
Technical field
The present invention relates to a kind of three multi-functional three pipe wellhead assemblies, belong to oil recovery machiner equipment technical field.
Background technology
At present, the super heavy oil reserves of the large area of Xinjiang Oilfield is verified, for improving recovery ratio, has applied the production practice such as SAGD and fireflood, wherein, need to meet the technological requirements such as production, steam injection, test, sand washing and well-flushing as the wellhead assembly of crucial well control facility.Existing three pipe wellhead assemblies are plain tubing tubular column structure, increase the weight of equipment in default of suitable pressurization, so there is the problem less than design object position under looped pipeline tubing string.
Summary of the invention
The object of the present invention is to provide a kind of three multi-functional three pipe wellhead assemblies, the technological requirement that it can meet super heavy oil recovery, realizes the Operating Pressure of later stage well head.
Concrete technical scheme of the present invention is as follows:
The logical equal splicing sleeve gate valve of side of the many logical housings of three pipes.In the many logical housing sidewall of three pipes, be provided with main logical be a fixed angle of altitude, that bottom is the steam injection of reaming shape is secondary logical and test is secondary logical, the secondary go side of steam injection mouth connects steam injection hanger, test secondary go side mouth connecting test pillar hanger, test pillar hanger top connecting test pipe hanger.The many logical housing masters of three pipes are provided with main logical hanger in leading to, and by upper flange connecting tee, another of threeway surveyed to lead to and be not connected main gate valve and oil recovery gate valve with the main reduction of fractions to a common denominator.
This wellhead assembly adopts space multidigit operation and shaped fuel pipe design, rational in infrastructure, reliable operation, can meet the requirement that production, steam injection and test technology that ultra-thick oil thermal adopts carry out simultaneously, realize well-flushing, fluid injection and multiple oil recovery and workover treatment, for the major and minor logical Operating Pressure such as follow-up well workover and sand washing provides device support, improve underground work safety and efficiency of construction, reduce labour intensity, save production cost.
Accompanying drawing explanation
Fig. 1 is three multi-functional three pipe wellhead assembly front views.
Fig. 2 is three multi-functional three pipe wellhead assembly lateral views.
The specific embodiment
With reference to Fig. 1 and 2, embodiments of the invention are further illustrated:
Embodiment:
This wellhead assembly comprises cover sluice valve 1, the many logical housings 2 of three pipes, steam injection hanger 3, main logical hanger 4, upper flange 5, threeway 6, main gate valve 7, oil recovery gate valve 8, testing tube hanger 9 and test pillar hanger 10:
The logical equal splicing sleeve gate valve 1 of two sides of the many logical housings 2 of three pipes.In many logical housing 2 sidewalls of three pipes, be provided with main logical be 15 ° of elevations angle, that bottom is the steam injection of reaming shape is secondary logical and test is secondary logical, the secondary go side of steam injection mouth connects steam injection hanger 3 by flange, test secondary go side mouth by flange connecting test pillar hanger 10, test pillar hanger 10 top connecting test pipe hangers 9.In many logical housings 2 masters of three pipes are logical, be provided with the logical hanger 4 of master that fixed by jackscrew, cone type, and logical by the side of upper flange 5 connecting tees 6, and the opposite side of threeway 6 leads to and is not connected main gate valve 7 and oil recovery gate valve 8 with the main reduction of fractions to a common denominator.
The installation process of this wellhead assembly is as follows:
First, will overlap sluice valve 1 and connect the how logical housing 2 of three pipes; In the secondary go side of steam injection, mouth connects steam injection hanger 3, at test secondary go side mouth connecting test pillar hanger 10 and testing tube hanger 9; Logical master hanger 4 is seated in main siphunculus, tightens jackscrew; The each port flange of connecting tee 6 and gate valve, bolt on, and completes assembling; Carry out after hydrostatic test and drift test, can drop into on-the-spot use.
The logical cone type hanger that adopts of this wellhead assembly master, its monolateral shape metallic leak-proof structure can guarantee the reliability of working under high temperature and high pressure condition; The bottom reaming at the elevation angle can guarantee that each tubing string has enough working space positions, facilitates the smooth enforcement of well control measure.
Elevation angle pair is led to and hanger can utilize the pressurization of coiled tubing injection head to increase the weight of function, by arriving destination locations under tubing string, realizes the application of coiled tubing in oil production technology.
The three-way pipeline of this wellhead assembly each other respectively at an angle, forms three pipe three-dimensional multi structures, then is equipped with hitch separately, can realize the separate operaton of any tubing string.Main leading to after dismounting flange can connect implement with pressure, and secondary leading to also can directly connect continuous oil pipe operation equipment, for the major and minor logical Operating Pressure such as follow-up well workover and sand washing provides device support.
Claims (2)
1. three multi-functional three pipe wellhead assemblies, is characterized in that:
The logical equal splicing sleeve gate valve (1) of side of the many logical housings (2) of three pipes of this wellhead assembly; In many logical housing (2) sidewalls of three pipes, be provided with main logical be a fixed angle of altitude, that bottom is the steam injection of reaming shape is secondary logical and test is secondary logical, the secondary go side of steam injection mouth connects steam injection hanger (3), test secondary go side mouth connecting test pillar hanger (10), test pillar hanger (10) top connecting test pipe hanger (9); In three many main leading to of logical housings (2) of pipe, be provided with main logical hanger (4), and by upper flange (5) connecting tee (6), the opposite side of threeway (6) is logical is not connected main gate valve (7) and oil recovery gate valve (8) with the main reduction of fractions to a common denominator.
2. three multi-functional three pipe wellhead assemblies according to claim 1, is characterized in that the main logical interior cone type hanger that adopts of the how logical housing (2) of three pipes, can guarantee the reliability of working under high temperature and high pressure condition; Secondary logical interior elevation angle bottom reaming can guarantee that each tubing string has enough working space positions; Elevation angle pair is led to and hanger can utilize the pressurization of coiled tubing injection head to increase the weight of function, will be to destination locations under tubing string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103403.4A CN103790541B (en) | 2013-03-28 | 2013-03-28 | Three multi-functional three wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310103403.4A CN103790541B (en) | 2013-03-28 | 2013-03-28 | Three multi-functional three wellhead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103790541A true CN103790541A (en) | 2014-05-14 |
| CN103790541B CN103790541B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310103403.4A Active CN103790541B (en) | 2013-03-28 | 2013-03-28 | Three multi-functional three wellhead |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
| CN106401520A (en) * | 2016-11-22 | 2017-02-15 | 袁旭东 | Thick oil extraction test well mouth device |
| CN108661588A (en) * | 2018-06-23 | 2018-10-16 | 中国石油集团渤海石油装备制造有限公司 | A kind of Multi-pipe crossing high temperature test wellhead assembly |
| CN112302573A (en) * | 2020-12-01 | 2021-02-02 | 中国石油天然气集团有限公司 | Ball injector and ball injection method suitable for drainage test operation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0554067A2 (en) * | 1992-01-27 | 1993-08-04 | Cooper Cameron Corporation | Geothermal wellhead having hanger spool with eccentric hanger seat |
| CN202215222U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Three-pipe thermal recovery wellhead of extremely-thicken oil horizontal well fireflood-assisted gravity drainage |
| CN202215180U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Concentric tube wellhead assembly for thickened oil exploitation of steam-assisted gravity drainage |
| CN202500540U (en) * | 2011-12-30 | 2012-10-24 | 中国石油天然气股份有限公司 | Three-channel injection-production well entrance apparatus |
| CN202531149U (en) * | 2012-02-16 | 2012-11-14 | 中国石油天然气股份有限公司 | Three-pipe thermal recovery well head device shell |
| CN203230370U (en) * | 2013-03-28 | 2013-10-09 | 中国石油天然气股份有限公司 | Three-position multifunctional three-tube wellhead device |
-
2013
- 2013-03-28 CN CN201310103403.4A patent/CN103790541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0554067A2 (en) * | 1992-01-27 | 1993-08-04 | Cooper Cameron Corporation | Geothermal wellhead having hanger spool with eccentric hanger seat |
| CN202215222U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Three-pipe thermal recovery wellhead of extremely-thicken oil horizontal well fireflood-assisted gravity drainage |
| CN202215180U (en) * | 2011-08-05 | 2012-05-09 | 中国石油天然气股份有限公司 | Concentric tube wellhead assembly for thickened oil exploitation of steam-assisted gravity drainage |
| CN202500540U (en) * | 2011-12-30 | 2012-10-24 | 中国石油天然气股份有限公司 | Three-channel injection-production well entrance apparatus |
| CN202531149U (en) * | 2012-02-16 | 2012-11-14 | 中国石油天然气股份有限公司 | Three-pipe thermal recovery well head device shell |
| CN203230370U (en) * | 2013-03-28 | 2013-10-09 | 中国石油天然气股份有限公司 | Three-position multifunctional three-tube wellhead device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781524A (en) * | 2016-01-07 | 2016-07-20 | 马志 | Whole-working-condition annulus test wellhead device |
| CN106401520A (en) * | 2016-11-22 | 2017-02-15 | 袁旭东 | Thick oil extraction test well mouth device |
| CN106401520B (en) * | 2016-11-22 | 2018-11-16 | 袁旭东 | A kind of thick oil production measuring well head device |
| CN108661588A (en) * | 2018-06-23 | 2018-10-16 | 中国石油集团渤海石油装备制造有限公司 | A kind of Multi-pipe crossing high temperature test wellhead assembly |
| CN112302573A (en) * | 2020-12-01 | 2021-02-02 | 中国石油天然气集团有限公司 | Ball injector and ball injection method suitable for drainage test operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103790541B (en) | 2016-08-10 |
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