CN203097772U - Ultra-deep well mandrel type sleeve hanging device - Google Patents
Ultra-deep well mandrel type sleeve hanging device Download PDFInfo
- Publication number
- CN203097772U CN203097772U CN 201220739199 CN201220739199U CN203097772U CN 203097772 U CN203097772 U CN 203097772U CN 201220739199 CN201220739199 CN 201220739199 CN 201220739199 U CN201220739199 U CN 201220739199U CN 203097772 U CN203097772 U CN 203097772U
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- seal
- hanging device
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- deep well
- ring
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- Expired - Fee Related
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Abstract
The utility model discloses an ultra-deep well mandrel type sleeve hanging device. The ultra-deep well mandrel type sleeve hanging device is designed for solving the problem that seal loses effectiveness due to the fact that seal of a hanging device is in heavy burden. A running tool of the ultra-deep well mandrel type sleeve hanging device is inwards connected with a hanging device body, rubber auxiliary seal which is composed of a base plate, a rectangular rubber seal ring and a pressing plate is installed outside the hanging device body in a sleeved mode, and metal primary seal which is composed of a primary seal backing ring, an X-shaped metal sealing element, a primary seal supporting ring and a cap is installed on the hanging device body in a sleeved mode. The weight of a sleeve is used for exciting deformation of the X-shaped metal sealing element to carry out the metal primary seal, and extra weight is transmitted to the primary seal supporting ring after the metal primary seal is carried out, and is transmitted to a casing head body. A screw is screwed down to excite deformation of the rubber seal ring to carry out rubber auxiliary seal, and the rubber auxiliary seal plays a role in assistance of seal. The ultra-deep well mandrel type sleeve hanging device can solve the problem that the seal loses effectiveness in an ultra-deep well due to the fact that hanging load of seal of the hanging device is excessively large, and is good in seal effect, convenient to operate, and safe and reliable in remedial measure, and the service life is remarkably prolonged.
Description
Technical field
The utility model relates to a kind of ultradeep well mandrel formula casing hanger, belongs to the petroleum drilling and mining technical field.
Background technology
The wellhead assembly that one cover is complete mainly is made up of casing head, tubing head and oil recovery (gas) tree three parts.During drilling well, preventer is contained in constitutes wellhead for drilling on the casing head; During completion, (gas) tree of recovering the oil is contained in formation oil recovery (gas) wellhead assembly on the tubing head.Wherein, the main effect of tubing head is to hang oil pipe, the annular space between sealing oil pipe and the sleeve pipe; The main effect of production tree is switch, control and guiding gas stream and hangs oil pipe; The effect of casing head is to connect surface pipe, hangs the multilayer sleeve in the well; Whole device need satisfy the requirement of formation testing completion jobs that requires special skills such as drilling well, well cementation, testing pressure down hole, well-flushing, fracture acidizing.
At present, along with the development of oil development technology, it is necessary that the exploitation of ultradeep well seems all the more, and corresponding ultradeep well well control and all kinds of drilling-production equipment be follow-up synchronously also.For example, sit the extension power when above bearing 120, the metallic seal of existing casing head mandrel formula rubber seal hanger will be lost efficacy, and traditional O RunddichtringO also can lose efficacy because of ageing of rubber, and the remedial efforts difficulty after the seal failure is very big, some in addition can't remedy, far can not satisfy the seat of ultradeep well 300 tonnages and hang needs.
Summary of the invention
The purpose of this utility model is to provide a kind of ultradeep well mandrel formula casing hanger, and it can solve hanger and set seal failure problem in the process, satisfies the seat of ultradeep well and hangs requirement.
Concrete technical scheme of the present utility model is as follows:
This hanger is lowered to and connects the hanger body in the instrument, and the instrument inwall of being lowered to is provided with sealing ring; Hanger body outer wall convex shoulder top is suit base plate, rubber rectangular ring and pressing plate successively from bottom to top, and is fixed by housing screw, and the pressing plate end face props up and is lowered to the instrument bottom surface; Hanger body outer wall convex shoulder suit O RunddichtringO; Hanger body outer wall convex shoulder below from top to bottom successively suit primary seal gasket ring, X type metal seal, primary seal support ring and and cap, and cap by screw in hanger body outer wall.
This hanger is provided with master metal sealing and the auxilliary sealing of rubber, the master metal sealing excites the distortion of X type metal seal to implement sealing by casing wt, after the sealing, excess weight is passed to the primary seal Supporting ring, be passed to the casing head body again, guarantee fund owner sealing can not lost efficacy because of hanging heavy burden; The auxilliary sealing of rubber excites the distortion of rubber seal to implement sealing by tightening screw, plays the subsidy sealing.This hanger can solve in ultradeep well because of hanger sets the excessive seal failure problem that causes of suspending weight, good sealing effect, easy to operate, remedial measure is safe and reliable, application life significant prolongation.
Description of drawings
Fig. 1 is a ultradeep well mandrel formula casing hanger structural representation.
Fig. 2 is a ultradeep well mandrel formula casing hanger work schematic diagram.
The specific embodiment
With reference to Fig. 1 and 2 embodiment of the present utility model is further specified:
Embodiment:
This casing hanger comprises the instrument of being lowered to 1, O RunddichtringO 2, hanger body 3, master metal sealing (and cap 4, screw 5, primary seal support ring 6, X type metal seal 7 and primary seal gasket ring 8), the auxilliary sealing of rubber (base plate 9, rubber rectangular ring 10, tighten screw 11 and pressing plate 12) and sealing ring 13:
Be lowered to the hanger body 3 of instrument 1 inwall bottom screwed connection tubular, be lowered to instrument 1 inwall and be provided with sealing ring 13; Hanger body 3 outer wall convex shoulders tops is suit base plate 9, rubber rectangular ring 10 and pressing plate 12 successively from bottom to top, and fixing by tightening screw 11, and pressing plate 12 end faces prop up the instrument of being lowered to 1 bottom surface; Hanger body 3 outer wall convex shoulders middle part suit O RunddichtringO 2; Hanger body 3 outer wall convex shoulders belows from top to bottom successively suit primary seal gasket ring 8, X type metal seal 7, primary seal support ring 6 and and cap 4, and cap 4 is fixed in hanger body 3 outer walls by screw 5.
The X type metal seal 7 of master metal sealing selects for use the conical surface to set, and implements sealing by the facial disfigurement that sets that sleeve pipe gravity excites; After the sealing, unnecessary weight is passed to primary seal Supporting ring 6, is passed to casing head body 14 again, can not cause seal failure because of hanging heavy burden with guarantee fund owner sealing.The auxilliary sealing of rubber is played the effect of subsidy sealing by tightening the rubber rectangular ring 10 distortion enforcement sealings that screw 11 excites.If seal failure can further tighten and tighten screw 11, excite the deformable seal of rubber rectangular ring 10, play the effect that sealing is remedied.
Claims (2)
1. ultradeep well mandrel formula casing hanger is characterized in that:
Connect hanger body (3) in the instrument that is lowered to (1) of this hanger, be lowered to instrument (1) inwall and be provided with sealing ring (13); Hanger body (3) outer wall convex shoulder top is suit base plate (9), rubber rectangular ring (10) and pressing plate (12) successively from bottom to top, and is fixed by housing screw (11), and pressing plate (12) end face props up the instrument of being lowered to (1) bottom surface; Hanger body (3) outer wall convex shoulder suit O RunddichtringO (2); Hanger body (3) outer wall convex shoulder below is suit primary seal gasket ring (8), X type metal seal (7), primary seal support ring (6) and also cap (4) successively from top to bottom, and cap (4) is fixed in hanger body (3) outer wall by screw (5).
2. ultradeep well mandrel formula casing hanger as claimed in claim 1 is characterized in that the hanger body (3) of the instrument that is lowered to (1) inwall bottom screwed connection tubular; Hanger body (3) outer wall convex shoulder middle part suit O RunddichtringO (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739199 CN203097772U (en) | 2012-12-28 | 2012-12-28 | Ultra-deep well mandrel type sleeve hanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220739199 CN203097772U (en) | 2012-12-28 | 2012-12-28 | Ultra-deep well mandrel type sleeve hanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203097772U true CN203097772U (en) | 2013-07-31 |
Family
ID=48849181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220739199 Expired - Fee Related CN203097772U (en) | 2012-12-28 | 2012-12-28 | Ultra-deep well mandrel type sleeve hanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203097772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234657A (en) * | 2014-09-23 | 2014-12-24 | 江苏金石科技有限公司 | Double-limiting metal sealing oil pipe suspender |
| CN106014323A (en) * | 2016-07-21 | 2016-10-12 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Hanger with metal auxiliary seal and tubing equipment with hanger |
| CN116291291A (en) * | 2023-05-10 | 2023-06-23 | 建湖县鸿达阀门管件有限公司 | 175MPa three-layer ultrahigh pressure casing head |
-
2012
- 2012-12-28 CN CN 201220739199 patent/CN203097772U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234657A (en) * | 2014-09-23 | 2014-12-24 | 江苏金石科技有限公司 | Double-limiting metal sealing oil pipe suspender |
| CN106014323A (en) * | 2016-07-21 | 2016-10-12 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Hanger with metal auxiliary seal and tubing equipment with hanger |
| CN106014323B (en) * | 2016-07-21 | 2018-11-30 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Lower oil tube equipment equipped with hanger |
| CN116291291A (en) * | 2023-05-10 | 2023-06-23 | 建湖县鸿达阀门管件有限公司 | 175MPa three-layer ultrahigh pressure casing head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20211228 |