CN201083096Y - Oil pipe hanger - Google Patents
Oil pipe hanger Download PDFInfo
- Publication number
- CN201083096Y CN201083096Y CNU2007201171351U CN200720117135U CN201083096Y CN 201083096 Y CN201083096 Y CN 201083096Y CN U2007201171351 U CNU2007201171351 U CN U2007201171351U CN 200720117135 U CN200720117135 U CN 200720117135U CN 201083096 Y CN201083096 Y CN 201083096Y
- Authority
- CN
- China
- Prior art keywords
- tubing hanger
- boll
- weevil hanger
- hanger
- solves
- 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
- 241000254175 Anthonomus grandis Species 0.000 claims description 36
- 238000012856 packing Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 abstract description 10
- 230000032683 aging Effects 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 3
- 241000191291 Abies alba Species 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940074869 marquis Drugs 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Images
Landscapes
- Gasket Seals (AREA)
Abstract
A tubing hanger comprises a tubing hanger (2), wherein the bottom end of the tubing hanger (2) has a metal seal ring (1); the inner surface of the upper port of the tubing hanger (2) is a conical surface; moreover, the inside of the upper port has a metal sealing spacer (3); the middle part of the central hole of the tubing hanger (2) is provided with stub tooth acme thread. The tubing hanger solves the following three problems that: (1) the tubing hanger solves the problem that a valve arranged on a christmas tree can not be replaced in time when leakage or other failures occur during oil-gas well production and operation, and realizes pressure balanced well operation; (2) the tubing hanger solves the problem that the sealing piece of the tubing hanger needs to be replaced frequently due to aging; (3) the utility model can prevent fastening screws from contacting high-pressure toxic medium, thereby avoiding corrosive leakage and realizing reliable sealing.
Description
Technical field:
The utility model relates to the used a kind of instrument in oil recovery (gas) field, oil field, especially a kind of boll-weevil hanger.
Background technology:
At present applied boll-weevil hanger can only be used for hanging production tube on the oil gas field.When formation testing pilot production and workover treatment, in case occur unexpectedly, or during ordinary production, the valve on the production tree leaks, can't change valve, can only take kill job, the method is not only destroyed strata pressure, sometimes the marquis also may make well scrap, and contaminated environment has increased operating cost simultaneously; The sealing means of boll-weevil hanger is most to be the rubber parts sealing, and it is aging easily to exist rubber parts, needs the problem of replacing rubber parts.In addition, the locking jackscrew of boll-weevil hanger contacts with extraction liquid all the time, this frame mode can not satisfy needs, the especially high-pressure gas well of high pressure well and the hole condition that extraction liquid has toxic gas and Korrosionsmedium far away, will cause sealing unreliable or corrosion leakage.
The utility model content:
In order to solve the problem in the background technology, the utility model provides a kind of boll-weevil hanger, this boll-weevil hanger has solved three problems: 1. when solving production of oil gas well and operation, when leakage or other fault take place in the valve on production tree, the problem that can't in time change realizes snubbing serving; 2. solve because the aging problem that need often change of the seal of boll-weevil hanger; 3. solution locking jackscrew contacts with high pressure, poisonous and harmful medium and avoids corrosion leakage, realizes positiver sealing.
The technical solution of the utility model is: this boll-weevil hanger comprises boll-weevil hanger, and there is metallic packing ring the boll-weevil hanger bottom, and in the conical surface and the mouth metallic seal dottle pin being arranged, boll-weevil hanger centre bore middle part is short tooth trapezoidal thread in the boll-weevil hanger upper port.
Above-mentioned metallic seal dottle pin is stuck on the boll-weevil hanger upper surface.
The utlity model has following beneficial effect: this oil pipe hanger top inner chamber designs a conical surface, and design a kind of metallic seal dottle pin and be mated, adopt the metallic seal dottle pin, make the thorough and pressure source cut-out of locking jackscrew, avoid metal jackscrew and caulking gum spare to contact and cause corrosion to reveal with the poisonous and harmful medium, especially the high-pressure gas well hole condition can bear more high pressure, has reduced the leak point.Reserved the position that to put into metallic packing ring simultaneously in the lower end of boll-weevil hanger, make the sealing of tubing hanger and tubing head adopt metallic seal, after adopting metallic seal, avoided the easily aging drawback that needs often to change seal of rubber, guarantee the sealing reliability of boll-weevil hanger, reduced labour intensity.In addition, boll-weevil hanger has designed novel screw thread in endoporus, has adopted short tooth trapezoidal thread, this screw strength height, the life-span is long, the pressure-bearing height, the highest can pressure-bearing 15000psi.Can be lowered to therewith the counterbalance valve of threaded engagement in case of necessity and seal well liquid in the oil pipe.This is novel can finish not kill-job, the valve on the just replaceable production tree of open flow not, when the valve on formation testing, pilot production, workover treatment, blowout or production tree takes place to leak, can effectively prevent well kick, suppresses blowout, the protection environment.
Description of drawings:
Accompanying drawing 1 is a sectional view of the present utility model;
Accompanying drawing 2 is partial enlarged drawings of 5 in the accompanying drawing 1.
1-metallic packing ring among the figure, the 2-boll-weevil hanger, 3-metallic seal dottle pin, 4-locks jackscrew, the short tooth trapezoidal thread of 5-.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing: as shown in Figure 1, this boll-weevil hanger comprises boll-weevil hanger 2, there is metallic packing ring 1 boll-weevil hanger 2 bottoms, metallic packing ring 1 processes 45 ° of chamferings, hanging under the tubing string deadweight effect, metallic packing ring 1 deforms, with oil, the cover spatial separation is opened, realize metallic seal, be in the conical surface and the mouth metallic seal dottle pin 3 to be arranged in boll-weevil hanger 2 upper port, the conical surface cooperates with metallic seal dottle pin 3 and compresses, and metallic seal dottle pin 3 is stuck on boll-weevil hanger 2 upper surfaces, and boll-weevil hanger 2 centre bores middle part is short tooth trapezoidal thread 5.
Boll-weevil hanger 2 middle parts process short tooth trapezoidal thread, the lower end still is a tubing round thread, during normal operation, finish and hang the oil pipe function, in case meet accident or valve leak,, counterbalance valve is sent into boll-weevil hanger 2 short tooth trapezoidal thread lines parts and tighten by special tool on production tree top, down-hole liquid is sealed; Can change valve this moment, after valve has been changed, by instrument counterbalance valve taken out, and can return to normal production.Existing boll-weevil hanger top metallic seal dottle pin 3 useless, down-hole liquid directly touch locking jackscrew 4 by the boll-weevil hanger interstitial hole, and well is pressed high or the poisonous and harmful medium is arranged, and will corrode jackscrew or leak from jackscrew.Process a conical surface at boll-weevil hanger 2 tops, and cooperate with metallic seal dottle pin 3 and to compress, well liquid directly enters top by boll-weevil hanger 2 interstitial holes, has avoided well liquid to contact with locking jackscrew 4, makes sealing more safe and reliable, has reduced leakage point.
Claims (2)
1. boll-weevil hanger, comprise boll-weevil hanger (2), it is characterized in that: there is metallic packing ring (1) boll-weevil hanger (2) bottom, for in the conical surface and the mouth metallic seal dottle pin (3) being arranged, boll-weevil hanger (2) centre bore middle part is short tooth trapezoidal thread (5) in boll-weevil hanger (2) upper port.
2. boll-weevil hanger according to claim 1 is characterized in that: metallic seal dottle pin (3) is stuck on boll-weevil hanger (2) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201171351U CN201083096Y (en) | 2007-09-30 | 2007-09-30 | Oil pipe hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201171351U CN201083096Y (en) | 2007-09-30 | 2007-09-30 | Oil pipe hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083096Y true CN201083096Y (en) | 2008-07-09 |
Family
ID=39625561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201171351U Expired - Fee Related CN201083096Y (en) | 2007-09-30 | 2007-09-30 | Oil pipe hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083096Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927706A (en) * | 2022-04-12 | 2023-10-24 | 中国石油天然气集团有限公司 | Shockproof metal sealing structure of gas storage wellhead hanger |
-
2007
- 2007-09-30 CN CNU2007201171351U patent/CN201083096Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927706A (en) * | 2022-04-12 | 2023-10-24 | 中国石油天然气集团有限公司 | Shockproof metal sealing structure of gas storage wellhead hanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101644149B (en) | Integral type level oil extraction wellhead equipment | |
| CN110173233A (en) | A kind of storm valve | |
| CN104499993B (en) | Dual-flap-valve type downhole safety valve | |
| CN105156060B (en) | Coiled tubing blowout preventer | |
| CN201083096Y (en) | Oil pipe hanger | |
| CN201486503U (en) | Integrated type horizontal oil extraction wellhead device | |
| CN201567998U (en) | Drainage gas production well head sealing suspension device | |
| CN102071908B (en) | Anti-blowout control valve | |
| CN204457614U (en) | A kind of two disc type circulating valve that breaks | |
| CN106285544A (en) | A kind of thermal recovery steam injection well head obturator | |
| CN2771472Y (en) | High temperature snubbing steam flooding wellhead device | |
| CN201810272U (en) | Ultra-high pressure normally open valve for acidizing liquid discharge | |
| CN206707992U (en) | A kind of new redundance type standing valve for oil-well pump | |
| CN201083109Y (en) | Back pressure valve | |
| CN201148857Y (en) | Packer | |
| CN204782899U (en) | Wellhead sealer for pumping unit with worm linkage | |
| CN203808915U (en) | A plugging device for a tubing hanger | |
| CN212054603U (en) | A self-sealing leather cup packer | |
| CN200946497Y (en) | Downhole oil extraction pipe string for gas drive oil well | |
| CN208587126U (en) | A kind of polished rod sealer | |
| CN202249947U (en) | Subsurface safety valve | |
| CN208152973U (en) | A kind of screw pump well head steam injection sealing device and note adopt integrated optical rod seal apparatus | |
| CN216780417U (en) | Pressure relief control device for oil field well head | |
| CN200955374Y (en) | Oil-pipe internal blowout preventor | |
| CN218844274U (en) | Open formula oil recovery sliding sleeve by force |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20091030 |