CN1789657A - Well head device for thick oil extraction by horizontal well SAGD process - Google Patents
Well head device for thick oil extraction by horizontal well SAGD process Download PDFInfo
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- CN1789657A CN1789657A CN 200510130819 CN200510130819A CN1789657A CN 1789657 A CN1789657 A CN 1789657A CN 200510130819 CN200510130819 CN 200510130819 CN 200510130819 A CN200510130819 A CN 200510130819A CN 1789657 A CN1789657 A CN 1789657A
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Abstract
This invention relates to oil well SAGD exploring process mouth device, which comprises board valve, close device, four-way pass, continuous sealed and hang device, middle steel ring, small steel ring, large steel ring, double tube hand device, oil tube head and upper flange, wherein, the upper flange top end is connected to the four-way pass with close device installed inside by one side connected to board valve through screw bolt; upper flange top is welded with continuous oil tube sealing and hang device at certain angle; the oil tube head is located with double tube hang device.
Description
Technical field:
The present invention relates to a kind of wellhead assembly that is used for oil-field thick-oil steam injection oil recovery by heating horizontal well, belong to the oil recovery machiner class.
Background technology:
Along with the development of development technology in oilfield technology, the thickened oil recovery process application of thick oil horizontal well SAGD (being SAGD) increases day by day.Yet, because applying of this kind oil production technology technology still is in the starting stage, the special-purpose wellhead assembly of thick oil horizontal well that on-the-spot at present shortage still is applicable to this production technology, and existing wellhead assembly is difficult to satisfy the needs of SAGD explained hereafter, test and underground work.
Summary of the invention:
The object of the present invention is to provide a kind of thick oil horizontal well SAGD exploitation wellhead assembly that can satisfy SAGD explained hereafter, test, underground work needs.
The present invention realizes like this.This kind wellhead assembly adopts and hangs three tubular column structures, is made up of flap type, closing well device, four-way, upper flange, large, medium and small steel ring, tubing head four-way, dual tubing hanger, coiled tubing sealing and suspension arrangement.Wherein, dual tubing hanger is used for hanging flow string and guiding tubing string, and coiled tubing sealing and suspension arrangement are used for sealing and the suspension test string; In the dual tubing hanger flow string hang between position and the guiding position, tubing string suspension part and they with the tubing head four-way between respectively steel ring in the usefulness, drum rim and greatly steel ring realize metallic seal between the different tubing strings, to guarantee in the sealing performance between the different tubing strings under the operating mode of high temperature and high pressure; Coiled tubing sealing and suspension arrangement are welded on the upper flange so that certain angle is oblique, to guarantee removing of test string.The four-way on this device top is provided with the closing well device, and a side has flap type by the bolt tipping, and the upper flange below at middle part is connected with the tubing head four-way by bolt, and tubing head four-way one side has flap type by the bolt tipping.
During this wellhead assembly assembling, at first flap type, closing well device, four-way are assembled, then earlier with tubing head four-way and the bolt tightening of oil well casing flange, put into two-tube suspension arrangement and airtight and watertight padding, steel ring afterwards and it is connected respectively with guiding tubing string upper end snail line with flow string and tighten, again upper flange steadily is sitting in reliably above the tubing head four-way and in addition fastening, then flap type, closing well device and the four-way that fits together is fixed by bolts to the upper flange top with bolt.After above-mentioned assembly working was finished, oil well can drop into ordinary production, and can test easily and underground work, measured technical datas such as temperature, pressure at any time, owing to set up the closing well device, can realize closing well in operation process.
The present invention is reasonable in design, novel structure, and reliable operation utilizes it can satisfy the needs of the production of thick oil horizontal well SAGD production practice, test, underground work, guarantees thick oil horizontal well ordinary production and good exploitation effect.
Description of drawings:
Accompanying drawing is a structural representation of the present invention.Number in the figure " 12 ", " 13 ", " 14 " are respectively the suspension section of test string, flow string and guiding tubing string.
The specific embodiment:
The present invention is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the present invention is made up of flap type 1,10, closing well device 2, four-way 3, coiled tubing sealing and suspension arrangement 4, middle steel ring 5, drum rim 6, big steel ring 7, dual tubing hanger 8, tubing head four-way 9 and upper flange 11, its structure, assembled relation are as follows: upper flange 11 upper ends are connected with four-way 3 by bolt, closing well device 2, one sides are housed in the four-way 3 flap type 1 are arranged by the bolt tipping; Upper flange 11 belows are connected with tubing head four-way 9 by bolt, and tubing head four-way 9 one sides have flap type 10 by the bolt tipping; Oblique at a certain angle coiled tubing sealing and the suspension arrangement 4 of being welded with of upper flange 11 1 side end faces; Be provided with dual tubing hanger 8 in the tubing head four-way 9, steel ring 5 in being provided with between the flow string suspension section 13 of this hanger and the outstanding pipeline section 14 of guiding tubing string, flow string suspension section 13 and guiding tubing string hang and are respectively equipped with drum rim 6 and big steel ring 7 between section 14 and the tubing head four-way 9.Wherein, flap type 1,10 and large, medium and small steel ring 7,5,6 all adopt stainless steel material to make, and four-way 3, tubing head four-way 9, upper flange 11, dual tubing hanger 8 are alloy forged piece.Coiled tubing sealing and suspension arrangement 4 are a welding neck flange body, and oblique high-quality welding is provided with cone, locking device, gasket ring, filler, gland in it on upper flange 11, and a side is provided with jackscrew.
Claims (1)
1, a kind of viscous crude SAGD production of water horizontal well wellhead assembly, form by flap type (1), (10), closing well device (2), four-way (3), coiled tubing sealing and suspension arrangement (4), middle steel ring (5), drum rim (6), big steel ring (7), dual tubing hanger (8), tubing head four-way (9) and upper flange (10), it is characterized in that: upper flange (11) upper end is connected with four-way (3) by bolt, closing well device (2) is housed in the four-way (3), and a side has flap type (1) by the bolt tipping; Upper flange (11) below is connected with tubing head four-way (9) by bolt, and tubing head four-way (9) one sides have flap type (10) by the bolt tipping; Oblique at a certain angle coiled tubing sealing and the suspension arrangement (4) of being welded with of upper flange (11) end face; Be provided with dual tubing hanger (8) in the tubing head four-way (9), be provided with middle steel ring (5) between flow string of this hanger (13) and the guiding tubing string (14), be respectively equipped with drum rim (6) and big steel ring (7) between flow string (13) and guiding tubing string (14) and the tubing head four-way (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101308190A CN100340735C (en) | 2005-12-19 | 2005-12-19 | Well head device for thick oil extraction by horizontal well SAGD process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101308190A CN100340735C (en) | 2005-12-19 | 2005-12-19 | Well head device for thick oil extraction by horizontal well SAGD process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1789657A true CN1789657A (en) | 2006-06-21 |
| CN100340735C CN100340735C (en) | 2007-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101308190A Active CN100340735C (en) | 2005-12-19 | 2005-12-19 | Well head device for thick oil extraction by horizontal well SAGD process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100340735C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080537A (en) * | 2011-01-11 | 2011-06-01 | 中国石油天然气股份有限公司 | Method and system for determining liquid-vapor interface between double horizontal SAGD (Steam Assisted Gravity Drainage) reservoir wells |
| CN102287156A (en) * | 2011-08-05 | 2011-12-21 | 中国石油天然气股份有限公司 | Concentric pipe wellhead device for exploiting thickened oil through steam assisted gravity drainage |
| CN101560871B (en) * | 2009-05-20 | 2012-12-19 | 辽河石油勘探局 | Multi-pipe-column injection test thermal recovery wellhead device |
| CN103306629A (en) * | 2013-05-29 | 2013-09-18 | 中国石油化工股份有限公司 | Oil tube suspender centering device |
| CN102171410B (en) * | 2008-05-12 | 2014-04-02 | 阿科尔溶液新加坡有限公司 | Dual tubing hanger |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203409A (en) * | 1992-01-27 | 1993-04-20 | Cooper Industries, Inc. | Geothermal well apparatus and eccentric hanger spool therefor |
| CN2177087Y (en) * | 1993-10-11 | 1994-09-14 | 河南石油勘探局试采公司 | Hot production wellhead assembly |
| CN2199306Y (en) * | 1994-07-20 | 1995-05-31 | 河南油田诚达实业公司 | Suspended thermal extracting device for well head with spinning oil pipe |
| CN2448917Y (en) * | 2000-08-29 | 2001-09-19 | 辽河石油勘探局总机械厂 | Double-pipe gas-injection oil-production hole top apparatus for thick oil hole |
| US6920925B2 (en) * | 2002-02-19 | 2005-07-26 | Duhn Oil Tool, Inc. | Wellhead isolation tool |
| CN2559783Y (en) * | 2002-07-16 | 2003-07-09 | 辽河石油勘探局总机械厂 | Viscous oil thermal recovery well head apparatus |
| US6851478B2 (en) * | 2003-02-07 | 2005-02-08 | Stream-Flo Industries, Ltd. | Y-body Christmas tree for use with coil tubing |
| CN2739354Y (en) * | 2003-10-22 | 2005-11-09 | 中国石化集团胜利石油管理局总机械厂 | Steam injection oil-extracting two-pipe well head device |
| CN2688879Y (en) * | 2004-03-20 | 2005-03-30 | 张学鲁 | Top connector for double tube for filling and producing |
-
2005
- 2005-12-19 CN CNB2005101308190A patent/CN100340735C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102171410B (en) * | 2008-05-12 | 2014-04-02 | 阿科尔溶液新加坡有限公司 | Dual tubing hanger |
| CN101560871B (en) * | 2009-05-20 | 2012-12-19 | 辽河石油勘探局 | Multi-pipe-column injection test thermal recovery wellhead device |
| CN102080537A (en) * | 2011-01-11 | 2011-06-01 | 中国石油天然气股份有限公司 | Method and system for determining liquid-vapor interface between double horizontal SAGD (Steam Assisted Gravity Drainage) reservoir wells |
| CN102080537B (en) * | 2011-01-11 | 2014-06-04 | 中国石油天然气股份有限公司 | Method and system for determining liquid-vapor interface between double horizontal SAGD (Steam Assisted Gravity Drainage) reservoir wells |
| CN102287156A (en) * | 2011-08-05 | 2011-12-21 | 中国石油天然气股份有限公司 | Concentric pipe wellhead device for exploiting thickened oil through steam assisted gravity drainage |
| CN103306629A (en) * | 2013-05-29 | 2013-09-18 | 中国石油化工股份有限公司 | Oil tube suspender centering device |
| CN103306629B (en) * | 2013-05-29 | 2016-06-29 | 中国石油化工股份有限公司 | Boll-weevil hanger erection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100340735C (en) | 2007-10-03 |
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