CN2177087Y - Hot production wellhead assembly - Google Patents
Hot production wellhead assembly Download PDFInfo
- Publication number
- CN2177087Y CN2177087Y CN 93241976 CN93241976U CN2177087Y CN 2177087 Y CN2177087 Y CN 2177087Y CN 93241976 CN93241976 CN 93241976 CN 93241976 U CN93241976 U CN 93241976U CN 2177087 Y CN2177087 Y CN 2177087Y
- Authority
- CN
- China
- Prior art keywords
- way
- bridge
- valve
- tubing hanger
- type
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a well head device of heat production, in particular suitable for the oil production well of heat force exploited by steam injection. The device mainly comprises a four-way component in a bridge type, a mandrel hanger, a main valve, the valve of a sleeve pipe and an oil outlet valve. The four-way component in the bridge type and the tubing hanger form an independent oil pipe passage and a sleeve pipe passage after assembly. The upper plane surface and the lower plane surface of the four-way component in the bridge type and the tubing hanger in the inner cavity are respectively provided with a groove used for assembling metal sealing pads. The device reduces control valves, reduces the entire height and saves the cost of raw material with convenient operation and can satisfy the working requirements of heat production in high pressure and high temperature.
Description
The utility model relates to a kind of thermal recovery well head device, is suitable for mechanical oil well, is specially adapted to the oil recovery by heating well of steam injection development.
At present, on the mining site commonly used mechanical oil recovery well head device mainly by four-way junction of casing, go out four-way junction of oil and six control valves are formed.Package unit is loaded on behind the well head above ground level a lot, makes troubles to operation, dismounting tubing hanger complex operation during each well workover.When traditional wellhead assembly is applied on the thermal production well, because of the relation of expanding with heat and contract with cold, whole device will produce certain displacement, bring a series of problems to oil pumping; The back taken apart by flow line because the thermal deformation of pipeline couples together also very difficult again.
The purpose of this utility model provides a kind of improved wellhead for production, and this device possesses the function of traditional wellhead assembly, and certain temperature, the pressure of ability, has reduced whole height, has reduced valve.
The utility model is achieved through the following technical solutions: thermal recovery well head device is mainly by main valve, form with sleeve valve, fuel-displaced valve and casing flange that the bridge-type four-way joins respectively, be provided with access opening between the sleeve valve installing hole side of bridge-type four-way and following sleeve pipe installing hole.Be provided with tubing hanger between bridge-type four-way and main valve, tubing hanger and upper flange processing are in aggregates, and the flange shoulder is connected with the bridge-type four-way by flange bolt, and top joins by clip and main valve.Like this, can form independently oil pipe passage and sleeve channel simultaneously after bridge-type four-way and the tubing hanger assembling, replace the four-way junction of casing of traditional wellhead assembly and gone out four-way junction of oil, reduce valve quantity, reduce the well head height.The flange bolt that need only turn on tubing hanger and bridge-type four-way during operation just can carry out the rountrip of down-hole string, need not remove oil pipeline.Above and below at the bridge-type four-way is provided with groove, is used for the mounting plane steel ring; Have the annular seal saddle in bridge-type four-way inner chamber bottom, the tubing hanger bottom has groove, in order to SW with outside ring to be installed.Can anti-certain temperature and pressure in sealing.
Because the utility model takes said structure, its effect is, reduced by-pass valve control, reduced the whole height of device, saved the cost of raw material, and is easy to operate, can satisfy the thermal recovery job requirement under the HTHP.
Below in conjunction with accompanying drawing the technical program is described in further detail.
Fig. 1 is the section of structure of thermal recovery well head device.
The top of thermal recovery well head device is main valve 1, tubing hanger 6 is processed into one with upper flange, the upper flange top joins by clip 2 and main valve 1, tubing hanger 6 flange shoulders and bridge-type four-way 7 are fixed together by flange bolt 3, main body is in the inner chamber of bridge-type four-way 7, the middle part of tubing hanger 6 has through hole and 4 on fuel-displaced valve forms oil discharge passage, the bottom of tubing hanger 6 is provided with groove, corresponding with the annular seal saddle of bridge-type four-way 7 inner chamber bottoms, form the relative sealing of oil pipe passage and sleeve channel in order to device metal spirotallic gasket 8.The duct, left side of bridge-type four-way 7 is used for mounting bush valve 5, and the duct, right side is used to assemble fuel-displaced valve 4, and following duct has screw thread and is used for mounting sleeve; Have access opening between duct, left side and following duct, form sleeve channel; Be respectively equipped with groove on the upper and lower plane of bridge-type four-way 7, rectangle plane steel ring 9 is housed in it, form sealing surface with tubing hanger flange shoulder and lower flange 10.Can change the tight ness rating of sealing surface by adjusting flange bolt 3.
Claims (2)
1, thermal recovery well head device, by main valve (1), form with sleeve valve (5), fuel-displaced valve (4) and casing flange (10) that bridge-type four-way (7) joins respectively, it is characterized in that, be provided with tubing hanger (6) between bridge-type four-way (7) and main valve (1), tubing hanger has flange on (6), and the flange shoulder is connected with bridge-type four-way (7) by flange bolt (3), and top joins by clip (2) and main valve (1).
2, thermal recovery well head device according to claim 1, the inner chamber bottom that the bottom that it is characterized in that the tubing hanger (6) of bridge-type four-way (7) inner chamber has groove, bridge-type four-way 7 has the annular seal saddle, in order to assembling SW with outside ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241976 CN2177087Y (en) | 1993-10-11 | 1993-10-11 | Hot production wellhead assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93241976 CN2177087Y (en) | 1993-10-11 | 1993-10-11 | Hot production wellhead assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2177087Y true CN2177087Y (en) | 1994-09-14 |
Family
ID=33815801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93241976 Expired - Fee Related CN2177087Y (en) | 1993-10-11 | 1993-10-11 | Hot production wellhead assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2177087Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340735C (en) * | 2005-12-19 | 2007-10-03 | 辽河石油勘探局 | Well head device for thick oil extraction by horizontal well SAGD process |
| CN102312667A (en) * | 2011-09-23 | 2012-01-11 | 中国石油天然气股份有限公司 | Concentric pipe layered steam injection system and method |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric-tube double-tube steam injection wellhead device |
| CN101592023B (en) * | 2009-06-23 | 2013-02-13 | 中国海洋石油总公司 | Thermal production snubbing device |
-
1993
- 1993-10-11 CN CN 93241976 patent/CN2177087Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340735C (en) * | 2005-12-19 | 2007-10-03 | 辽河石油勘探局 | Well head device for thick oil extraction by horizontal well SAGD process |
| CN101592023B (en) * | 2009-06-23 | 2013-02-13 | 中国海洋石油总公司 | Thermal production snubbing device |
| CN102312667A (en) * | 2011-09-23 | 2012-01-11 | 中国石油天然气股份有限公司 | Concentric pipe layered steam injection system and method |
| CN102359355A (en) * | 2011-09-23 | 2012-02-22 | 中国石油天然气股份有限公司 | Concentric-tube double-tube steam injection wellhead device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2177087Y (en) | Hot production wellhead assembly | |
| CN109268595A (en) | A kind of fluid pipeline steel flange component | |
| CN209180535U (en) | A kind of fluid pipeline steel flange component | |
| CN100340735C (en) | Well head device for thick oil extraction by horizontal well SAGD process | |
| CN2550574Y (en) | Corrugated pipe seal regulating valve | |
| CN107882822A (en) | A kind of hydraulic test for being easily installed maintenance and temperature with high efficiency | |
| CN2384058Y (en) | Side sealing flat gate valve | |
| CN2656617Y (en) | Integrated multifunctional well head device | |
| CN208564490U (en) | A kind of steam thermal recovery integrated well head device | |
| CN206786094U (en) | A kind of side valve cap valve | |
| CN2665354Y (en) | Dual tubing heat extraction wellhead | |
| CN2410413Y (en) | Continuous sand-washing device for oil field | |
| CN2368972Y (en) | Monohole top device | |
| CN201013288Y (en) | Steam-injection oil extraction dual-purpose mine mouth device | |
| CN2199306Y (en) | Suspended thermal extracting device for well head with spinning oil pipe | |
| CN2083667U (en) | Slide type slowly closing check valve | |
| CN205479395U (en) | A check valve subassembly for in sludge pump | |
| CN2287206Y (en) | Sealing and separating device for hot production | |
| CN2203999Y (en) | Well head arrangement for petroleum prodn. made by cold extrusion welding | |
| CN2622387Y (en) | Flange hanging type oil pipe hanging device | |
| CN2228972Y (en) | Stuffing box for oil field well head | |
| CN217153242U (en) | Pump connection multifunctional valve | |
| CN2453122Y (en) | Integrated type circulation casing head hanger | |
| CN2782922Y (en) | Sand settling blocking-proof counter flooding valve | |
| CN2355181Y (en) | Special stop valve for liquid base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |