CN100340735C - 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
- Publication number
- CN100340735C CN100340735C CNB2005101308190A CN200510130819A CN100340735C CN 100340735 C CN100340735 C CN 100340735C CN B2005101308190 A CNB2005101308190 A CN B2005101308190A CN 200510130819 A CN200510130819 A CN 200510130819A CN 100340735 C CN100340735 C CN 100340735C
- Authority
- CN
- China
- Prior art keywords
- way
- bolt
- tubing
- upper flange
- steel ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention relates to a thick oil horizontal well head device for thick oil SAGD exploring process in oil fields. The present invention is composed of flat plate valves 1, 10, a well closing device 2, a four-way 3, a continuous oil pipe sealing and hanging device 4, a middle steel ring 5, a small steel ring 6, a big steel ring 7, a double-pipe hanging device 8, an oil pipe head four-way 9 and an upper flange 11, wherein the upper end of the upper flange 11 is connected with the four-way 3 by a bolt; the well closing device 2 is arranged in the four-way 3, and one side is connected with the flat plate valve 1 by a bolt; the lower part of the upper flange 11 is connected with the oil pipe head four-way 9 by a bolt, and one side of the oil pipe head four-way 9 is connected with the flat plate valve 10 by a bolt; the top surface of the upper flange 11 is obliquely welded with the continuous oil pipe sealing and hanging device 4 with a certain angle; the double-pipe hanging device 8 is arranged in the oil pipe head four-way 9. The well head device has the advantages of reasonable design and reliable operation; when the well head device is used, the requirements of the thick oil SAGD exploring process production, the test and the downhole operation can be met, and the normal production and good exploring effect of thick oil horizontal wells can be ensured.
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 four-way one 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, the pass is housed in the four-way 3 and installs 2, four-way 3 one sides have flap type 1 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 (11), 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 four-way (3) one sides have 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 CN1789657A (en) | 2006-06-21 |
| CN100340735C true CN100340735C (en) | 2007-10-03 |
Family
ID=36787752
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) |
Families Citing this family (5)
| 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 |
| 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 |
| CN102287156B (en) * | 2011-08-05 | 2014-06-04 | 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 |
| 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 |
Citations (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 |
| 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 |
| CN2688879Y (en) * | 2004-03-20 | 2005-03-30 | 张学鲁 | Top connector for double tube for filling and producing |
| US6920925B2 (en) * | 2002-02-19 | 2005-07-26 | Duhn Oil Tool, Inc. | Wellhead isolation tool |
| 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 |
-
2005
- 2005-12-19 CN CNB2005101308190A patent/CN100340735C/en active Active
Patent Citations (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1789657A (en) | 2006-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102041983B (en) | Sand control screen assembly with flow control capability, flow controller and method for operating sand control screen assembly with flow control capability | |
| CN202520265U (en) | Gas production well head device with metallic seals | |
| CN100340735C (en) | Well head device for thick oil extraction by horizontal well SAGD process | |
| CN104989314B (en) | Mud line production tree and its installation method under water | |
| CN201443330U (en) | Novel wellhead and oil-producing tree | |
| CN202745789U (en) | Wellhead dual-seal coiled tubing hanging device | |
| CN202165053U (en) | Novel hydraulic control underground sliding sleeve switch valve | |
| CN202500540U (en) | Three-channel injection-production well entrance apparatus | |
| CN103790542B (en) | A kind of high temperature is with pressure to put test coiled tubing suspension sealing device and using method | |
| CN201214997Y (en) | Metal seal double tube christmas tree wellhead device | |
| CN103089188A (en) | Fracturing-extraction well head device with combined sealing, directional separation and abrasion resistance | |
| CN203452759U (en) | Parallel double-pipe steam injection well mouth device | |
| CN207715122U (en) | Diplopore horizontal christmas tree wellhead assembly | |
| CN203626681U (en) | Single-tube wellhead device for thermal recovery with pressure | |
| CN203808914U (en) | Concentric double-pipe gas injection wellhead device | |
| CN203547641U (en) | Coiled tubing hanging and sealing device | |
| CN104879097A (en) | Gas well production string provided with double parallel pipes | |
| CN206668216U (en) | A kind of compact inverse well-flushing valve | |
| CN201045287Y (en) | injection-extraction integrated well head device | |
| CN203066924U (en) | Combination-sealed direction-dividing wear-resisting fracture mining well head equipment | |
| CN201802338U (en) | Dual-string oil production wellhead device for branch horizontal well | |
| CN2828309Y (en) | Automatic water drainage gas production device of coal-bed gas well | |
| CN202970551U (en) | Continuous sand washing device for integral joint tubing | |
| CN104165032B (en) | A kind of open coiled tubing infusion appliance and using method thereof | |
| CN201443331U (en) | Multi-functional well head and christmas tree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |