CN109162661A - A kind of multi-functional mandrel type hanger - Google Patents
A kind of multi-functional mandrel type hanger Download PDFInfo
- Publication number
- CN109162661A CN109162661A CN201811269310.8A CN201811269310A CN109162661A CN 109162661 A CN109162661 A CN 109162661A CN 201811269310 A CN201811269310 A CN 201811269310A CN 109162661 A CN109162661 A CN 109162661A
- Authority
- CN
- China
- Prior art keywords
- hanger
- hanger body
- ring
- mandrel type
- cap
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Abstract
The present invention relates to oil drilling and extracting equipment field more particularly to a kind of multi-functional mandrel type hangers.A kind of its technical solution are as follows: multi-functional mandrel type hanger, including hanger body, the lower section of hanger body is connected with shape metallic leak-proof structure, the upper section of hanger body is connected with rubber sealing structure, hanger body lower end is provided with the casing threads for connecting sleeve, the upper end of hanger body is provided with the trapezoidal thread for connecting tool of fetching and delivering, the inner wall of hanger body is separately provided for setting the lower step of pressure test plug and the upper step for setting boll-weevil hanger, and upper step is located above lower step.The present invention provides a kind of high multi-functional mandrel type hangers of sealing performance, solve the problems, such as existing hanger poor sealing performance, can not hang a variety of devices.
Description
Technical field
The present invention relates to oil drilling and extracting equipment field more particularly to a kind of multi-functional mandrel type hangers.
Background technique
Using traditional wellhead assembly, multiple replacing well head device and preventer group are needed.In addition, wellhead assembly and throttling
Manifold and kill manifold junction need multiple dismantling connection, and changing the outfit once need to again try preventer group and ground installation
Pressure spends time and cost.The well control safety paid close attention in conjunction with middle petroleum, drilling speed two principal themes, put forth effort from drilling process and
Safe, fast, efficient three aspect of christmas production improves the added value of wellhead assembly, carries out integral type oil casing head well head dress
The research set all has important meaning to producing in oil gas increasing the storage, further tamping drilling well corollary equipment technology.
Due to integral type oil casing head wellhead assembly is lower compared to traditional wellhead assembly height, overall sealing performance more
Good, so design is needed using straight sitting type structure, i.e. wellhead assembly chamber body only has step at one, and upper layer hanger need to be set
To on lower layer's hanger, pressure test plug is also set on lower layer's hanger.Due to the particularity of straight sitting type structure, so hanger
Intensity, sealing etc. has and must reach higher requirement.Integral type oil casing head well head based on this straight sitting type structure
Device is now badly in need of developing a kind of multi-functional mandrel type hanger, to cooperate the wellhead assembly to use.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of sealing performance high multi-functional mandrel type hanger, solution
Determined existing hanger poor sealing performance, the problem of a variety of devices can not be hung.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of multi-functional mandrel type hanger, including hanger body, the lower section of hanger body are connected with metal sealing
Structure, the upper section of hanger body are connected with rubber sealing structure, and hanger body lower end is provided with the set for connecting sleeve
Pipe screw thread, the upper end of hanger body are provided with the trapezoidal thread for connecting tool of fetching and delivering, the inner wall difference of hanger body
It is provided with the lower step for setting pressure test plug and the upper step for setting boll-weevil hanger, upper step is located at lower part
Above step.
As a preferred solution of the present invention, the shape metallic leak-proof structure includes the seat ring set gradually from top to bottom, skeleton
Formula X rubber seal, spacer ring, X metallic packing ring, support ring, lower part and cap, seat ring, skeleton X rubber seal, spacer ring, X
Metallic packing ring is set on hanger body, and support ring and lower part and cap thread are connected on hanger body, spacer ring
Inside and outside be provided with lower part auxiliary seal ring.
As a preferred solution of the present invention, the rubber sealing structure includes the backing plate set gradually from bottom to top, X rubber
Sealing ring, pressing plate, top and cap, backing plate, X rubber seal, pressing plate are sheathed on hanger body, top and cap thread company
It is connected on hanger body.
As a preferred solution of the present invention, uniformly distributed four conduction holes for drilling fluid circulation on the hanger body,
Conduction hole is between shape metallic leak-proof structure and rubber sealing structure.
As a preferred solution of the present invention, one section between conduction hole and rubber sealing structure of the hanger body
On be arranged there are two middle part auxiliary seal ring, hanger body is arranged on one section between conduction hole and shape metallic leak-proof structure
There is a middle part auxiliary seal ring.
Compared with prior art, the beneficial effects of the present invention are:
1, the inner wall of hanger body of the invention is respectively arranged with lower step and upper step.Lower step can be used for
Pressure test plug is set, pressure test plug is facilitated to carry out pressure testing to preventer group and well control manifold.Upper step can be used for setting oil pipe suspension
Device can be then connected with each other between adjacent suspension device, and boll-weevil hanger does not need to set on wellhead assembly ontology, then of the invention
It can be suitably used for the wellhead assembly ontology of step at only one.The present invention connecting sleeve and can not only fetch and deliver tool, moreover it is possible to set examination
Tamponade and boll-weevil hanger, it is functional stronger, so that integral type oil casing head wellhead assembly is achieved.Under hanger body
Section is connected with shape metallic leak-proof structure, and the upper section of hanger body is connected with rubber sealing structure, and sealing performance is more reliable, uses the longevity
It orders longer, meets the requirement of integral type oil casing head wellhead assembly.
2, simultaneously cap to upper parts can support for support ring and lower part, and the suspending weight excitation shape metallic leak-proof structure of casing becomes
Shape realizes hanger lower seal, guarantees sealed reliable.
3, when tightening top and cap using tightening tool, pressing plate is squeezed, pressing plate excites X rubber seal, realizes hanger
Top seal guarantees sealed reliable.
4, drilling fluid can be flowed through from the conduction hole in the middle part of hanger, be carried out convenient for the flap type on production tree to each layer liquid
Control.
5, the case where middle part auxiliary seal ring reliably can be sealed to conduction hole two sides, drilling fluid is avoided to reveal.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the partial enlarged view in Fig. 1 at A；
Fig. 3 is the partial enlarged view in Fig. 1 at B；
Fig. 4 is traditional well head schematic device；
Fig. 5 is the wellhead assembly structural schematic diagram using this patent casing hanger；
Fig. 6 is the scheme of installation of this patent casing hanger；
Fig. 7 is to excite this patent casing hanger top seal schematic diagram using tightening tool；
Fig. 8 is pressure test plug scheme of installation.
In figure, 1- hanger body, 2- shape metallic leak-proof structure, 3- rubber sealing structure, 11- casing threads, the trapezoidal spiral shell of 12-
Line, 13- lower step, 14- upper step, 15- conduction hole, the middle part 16- auxiliary seal ring, 21- seat ring, the skeleton X rubber of 22-
Sealing ring, 23- spacer ring, 24-X metallic packing ring, 25- support ring, the lower part 26- and cap, the lower part 27- auxiliary seal ring, 31- pad
Plate, 32-X rubber seal, 33- pressing plate, the top 34- and cap, 4- wellhead assembly ontology, 5- support tube, 6- boll-weevil hanger, 7-
Fetch and deliver tool, 8- tightening tool, 9- pressure test plug.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
When installation, the casing threads 11 of 1 lower end of hanger body is threadedly coupled with casing, 1 upper end of hanger body
Trapezoidal thread 12 be connected with tool of fetching and delivering 7 with screw thread.Landing joint is connected by fetching and delivering 7 upper end female thread of tool, it is then whole to send
In the cavity for entering wellhead assembly ontology 4, seat is suspended on support tube 5.The suspending weight excitation shape metallic leak-proof structure 2 of casing deforms, real
Existing hanger lower seal, guarantees sealed reliable.When tightening top and cap 34 using tightening tool 8, pressing plate 33, pressing plate 33 are squeezed
X rubber seal 32 is excited, realizes hanger top seal, guarantees sealed reliable.
After being installed, pressure test plug 9 is transferred in place, to upper layer preventer and upper side oral examination pressure.Use this Multifunctional core
Pressure test plug 9 can be achieved to preventer group and well control manifold pressure testing in shaft type hanger at inner cavity from top to bottom second step.?
Inner cavity can be achieved at first step to set boll-weevil hanger 6 from top to bottom, and can carry out water conservancy diversion to drilling fluid.This Multifunctional core
Shaft type hanger top and the bottom are equipped with composite seal structure, and sealing performance is more reliable, and the service life is longer.Using different materials
Material and control technique, the requirement being just able to satisfy under varying environment.
Embodiment one
A kind of multi-functional mandrel type hanger, including hanger body 1, it is close that the lower section of hanger body 1 is connected with metal
Seal structure 2, the upper section of hanger body 1 are connected with rubber sealing structure 3, and 1 lower end of hanger body is provided with for connector sleeve
The casing threads 11 of pipe, the upper end of hanger body 1 are provided with the trapezoidal thread 12 for connecting tool of fetching and delivering, hanger body
1 inner wall is separately provided for setting the lower step 13 of pressure test plug and the upper step 14 for setting boll-weevil hanger,
Upper step 14 is located at 13 top of lower step.
The inner wall of hanger body 1 of the invention is respectively arranged with lower step 13 and upper step 14.Lower step 13
It can be used for setting pressure test plug 9, pressure test plug 9 facilitated to carry out pressure testing to preventer group and well control manifold.Upper step 14 can be used for sitting
Oil sealing pipe hanger 6 can be then connected with each other between adjacent suspension device, and boll-weevil hanger 6 does not need to set in wellhead assembly sheet
On body 4, then the present invention can be suitably used for the wellhead assembly ontology 4 of step at only one.The present invention connecting sleeve and can not only fetch and deliver
Tool 7, moreover it is possible to pressure test plug 9 and boll-weevil hanger 6 are set, it is functional stronger, so that integral type oil casing head wellhead assembly is able to
It realizes.The lower section of hanger body 1 is connected with shape metallic leak-proof structure 2, and the upper section of hanger body 1 is connected with rubber sealing structure
3, sealing performance is more reliable, and the service life is longer, meets the requirement of integral type oil casing head wellhead assembly.
Embodiment two
On the basis of example 1, the shape metallic leak-proof structure 2 includes seat ring 21, the skeleton set gradually from top to bottom
Formula X rubber seal 22, spacer ring 23, X metallic packing ring 24, support ring 25, lower part and cap 26, seat ring 21, skeleton X rubber are close
Seal 22, spacer ring 23, X metallic packing ring 24 are set on hanger body 1, and support ring 25 and lower part and cap 26 are threadedly coupled
In on hanger body 1, lower part auxiliary seal ring 27 is provided with inside and outside spacer ring 23.
Simultaneously cap 26 to upper parts can support for support ring 25 and lower part, and the suspending weight of casing excites shape metallic leak-proof structure
2 deformations, realize hanger lower seal, guarantee sealed reliable.
Embodiment three
On the basis of embodiment one or embodiment two, the rubber sealing structure 3 includes setting gradually from bottom to top
Backing plate 31, X rubber seal 32, pressing plate 33, top and cap 34, backing plate 31, X rubber seal 32, pressing plate 33 are sheathed on outstanding
In hanging device main body 1, simultaneously cap 34 is threadedly connected on hanger body 1 on top.
When tightening top and cap 34 using tightening tool 8, pressing plate 33 is squeezed, pressing plate 33 excites X rubber seal 32, realizes
Hanger top seal guarantees sealed reliable.
Example IV
On the basis of above-mentioned any one embodiment, uniformly distributed four are circulated for drilling fluid on the hanger body 1
Conduction hole 15, conduction hole 15 is between shape metallic leak-proof structure 2 and rubber sealing structure 3.
Drilling fluid can be flowed through from the conduction hole 15 in the middle part of hanger, be carried out convenient for the flap type on production tree to each layer liquid
Control.
Embodiment five
On the basis of above-mentioned any one embodiment, the hanger body 1 is located at conduction hole 15 and rubber seal knot
It is arranged on one section between structure 3 there are two middle part auxiliary seal ring 16, hanger body 1 is located at conduction hole 15 and metal sealing knot
A middle part auxiliary seal ring 16 is arranged on one section between structure 2.
The case where middle part auxiliary seal ring 16 reliably can be sealed to 15 two sides of conduction hole, drilling fluid is avoided to reveal.
Claims (5)
1. a kind of multi-functional mandrel type hanger, which is characterized in that including hanger body (1), the lower section of hanger body (1)
It is connected with shape metallic leak-proof structure (2), the upper section of hanger body (1) is connected with rubber sealing structure (3), hanger body (1)
Lower end is provided with the casing threads (11) for connecting sleeve, and the upper end of hanger body (1), which is provided with, fetches and delivers work for connecting
Has the trapezoidal thread (12) of (7), the inner wall of hanger body (1) is separately provided for setting the lower step of pressure test plug (9)
(13) upper step (14) and for setting boll-weevil hanger (6), upper step (14) are located above lower step (13).
2. a kind of multi-functional mandrel type hanger according to claim 1, which is characterized in that the shape metallic leak-proof structure
It (2) include the seat ring (21) set gradually from top to bottom, skeleton X rubber seal (22), spacer ring (23), X metallic packing ring
(24), support ring (25), lower part and cap (26), seat ring (21), skeleton X rubber seal (22), spacer ring (23), X metal are close
Seal ring (24) is set on hanger body (1), and support ring (25) and lower part and cap (26) are threadedly connected to hanger body
(1) on, lower part auxiliary seal ring (27) are provided with inside and outside spacer ring (23).
3. a kind of multi-functional mandrel type hanger according to claim 1, which is characterized in that the rubber sealing structure
It (3) include the backing plate (31) set gradually from bottom to top, X rubber seal (32), pressing plate (33), top and cap (34), backing plate
(31), X rubber seal (32), pressing plate (33) are sheathed on hanger body (1), and top and cap (34) are threadedly connected to outstanding
In hanging device main body (1).
4. a kind of multi-functional mandrel type hanger according to any one of claims 1 to 3, which is characterized in that described outstanding
Uniformly distributed four conduction holes (15) for drilling fluid circulation, conduction hole (15) are located at shape metallic leak-proof structure (2) in hanging device main body (1)
Between rubber sealing structure (3).
5. a kind of multi-functional mandrel type hanger according to claim 4, which is characterized in that the hanger body (1)
It is arranged on one section between conduction hole (15) and rubber sealing structure (3) there are two middle part auxiliary seal ring (16), is hung
Device main body (1), which is located on one section between conduction hole (15) and shape metallic leak-proof structure (2), is arranged with a middle part auxiliary seal ring
(16)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269310.8A CN109162661A (en) | 2018-10-29 | 2018-10-29 | A kind of multi-functional mandrel type hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811269310.8A CN109162661A (en) | 2018-10-29 | 2018-10-29 | A kind of multi-functional mandrel type hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162661A true CN109162661A (en) | 2019-01-08 |
Family
ID=64876227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811269310.8A Pending CN109162661A (en) | 2018-10-29 | 2018-10-29 | A kind of multi-functional mandrel type hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162661A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121660A (en) * | 1977-08-22 | 1978-10-24 | Fmc Corporation | Well pressure test plug |
| US20060191680A1 (en) * | 2005-02-09 | 2006-08-31 | Vetco Gray Inc. | Metal-to-metal seal for bridging hanger or tieback connection |
| CN102213081A (en) * | 2011-05-31 | 2011-10-12 | 宝鸡石油机械有限责任公司 | Spindle type metal sealing and metal framework type rubber sealing sleeve hanger |
| CN102322236A (en) * | 2011-05-31 | 2012-01-18 | 宝鸡石油机械有限责任公司 | Integrated oil casing head |
| CN202493237U (en) * | 2012-03-23 | 2012-10-17 | 中国石油集团西部钻探工程有限公司 | One-stage single-hanging device and one-stage double-hanging device |
| CA2833174A1 (en) * | 2011-04-14 | 2012-10-18 | Proserv Operations, Inc. | Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same |
| CN203891811U (en) * | 2014-05-20 | 2014-10-22 | 宝鸡石油机械有限责任公司 | Hanger with primary double-conical-surface metal sealing function and secondary double-conical-surface metal sealing function |
| CN207944909U (en) * | 2018-03-10 | 2018-10-09 | 重庆新泰机械有限责任公司 | A kind of 3U types multistage all-metal sealing mandrel type hanger |
-
2018
- 2018-10-29 CN CN201811269310.8A patent/CN109162661A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121660A (en) * | 1977-08-22 | 1978-10-24 | Fmc Corporation | Well pressure test plug |
| US20060191680A1 (en) * | 2005-02-09 | 2006-08-31 | Vetco Gray Inc. | Metal-to-metal seal for bridging hanger or tieback connection |
| CA2833174A1 (en) * | 2011-04-14 | 2012-10-18 | Proserv Operations, Inc. | Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same |
| CN102213081A (en) * | 2011-05-31 | 2011-10-12 | 宝鸡石油机械有限责任公司 | Spindle type metal sealing and metal framework type rubber sealing sleeve hanger |
| CN102322236A (en) * | 2011-05-31 | 2012-01-18 | 宝鸡石油机械有限责任公司 | Integrated oil casing head |
| CN202493237U (en) * | 2012-03-23 | 2012-10-17 | 中国石油集团西部钻探工程有限公司 | One-stage single-hanging device and one-stage double-hanging device |
| CN203891811U (en) * | 2014-05-20 | 2014-10-22 | 宝鸡石油机械有限责任公司 | Hanger with primary double-conical-surface metal sealing function and secondary double-conical-surface metal sealing function |
| CN207944909U (en) * | 2018-03-10 | 2018-10-09 | 重庆新泰机械有限责任公司 | A kind of 3U types multistage all-metal sealing mandrel type hanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201730579U (en) | High-temperature resistant well control device for double-pipe operation in horizontal wells | |
| CN109162661A (en) | A kind of multi-functional mandrel type hanger | |
| CN106050181A (en) | Thermal recovery casing head | |
| CN110469290A (en) | Leakproof two-stage water injection packer | |
| CN104847294B (en) | Multilateral Wells electric submersible pump device for well heads | |
| CN207377535U (en) | A kind of Simple casing head | |
| CN104989320B (en) | Chute type sub-releasing axle plug | |
| CN205743791U (en) | The lead stamp instrument that a kind of boll-weevil hanger for underwater vertical production tree is installed | |
| CN202338247U (en) | Three-phase releasing tool | |
| CN207795133U (en) | A kind of union connection Simple casing head | |
| CN205422622U (en) | Slide formula is deblocking packer step by step | |
| CN205427636U (en) | Counter is with built -in mechanical type liquid level balance control device | |
| CN207316271U (en) | A kind of one turn of three connector of PVC round tubes | |
| CN203835328U (en) | Releasing tool back-inserting device for liner tube secondary well cementation | |
| CN207636287U (en) | Underwater well head system seal assembly experimental rig | |
| CN202000948U (en) | Leakage type pipeline hanging device | |
| CN201991476U (en) | Double-tubular-column suspension wellhead device | |
| CN206772563U (en) | downhole tool oil immersion simulation test device | |
| CN207161039U (en) | A kind of circulation type sleeve pipe well head sets pipe nipple | |
| CN209556943U (en) | A kind of fields water injection opening arrangement that do not pull out of hole | |
| CN205778686U (en) | Anti-leak thermal extraction casing head | |
| CN105625979B (en) | Chute type gradually deblocking packer | |
| CN205936538U (en) | Oil pumping motor -pumped well negative pressure oil production pipe | |
| CN206625815U (en) | A kind of anti-leak thermal extraction casing head | |
| CN214660048U (en) | Simple underwater oil gas exploitation wellhead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200922 Address after: 618300 No. 86, South Second Section of Zhongshan Avenue, Guanghan City, Deyang City, Sichuan Province Applicant after: SICHUAN BAOSHI MACHINERY DRILLING AND PRODUCTION EQUIPMENT Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Address before: 618300 No. 86, South Second Section of Zhongshan Avenue, Guanghan City, Deyang City, Sichuan Province Applicant before: SICHUAN BAOSHI MACHINERY DRILLING AND PRODUCTION EQUIPMENT Co.,Ltd. |