CN205895195U - Multi -functional casing head of slips dabber interchangeable formula - Google Patents
Multi -functional casing head of slips dabber interchangeable formula Download PDFInfo
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- CN205895195U CN205895195U CN201620465615.6U CN201620465615U CN205895195U CN 205895195 U CN205895195 U CN 205895195U CN 201620465615 U CN201620465615 U CN 201620465615U CN 205895195 U CN205895195 U CN 205895195U
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- hanger
- sealing ring
- casing head
- dabber
- mandrel
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Abstract
The utility model provides a multi -functional casing head of slips dabber interchangeable formula, include: the casing head body, it includes: go up casing head part, case head spare, the dabber hanger sets up that this is internal in the casing head, and the dabber hanger is provided with the middle bench, and the dabber hanger periphery on the middle bench is provided with the left -hand screw, upper portion seal assembly sets up between last casing head part and hanger, lower part seal assembly sets up between case head spare and hanger, the bottom sealing washer sets up in the bottom of case head spare. The casing head leans on last position to be provided with the left -hand screw line at dabber hanger middle bench circumference for the cooperation under the hanger income instrument this internally sends into and takes out the dabber hanger at the sleeve pipe, need not to change upper casing head and oil pipe head, realize the exchange of dabber hanger and slips hanger, other sets up upper portion seal assembly, lower part seal assembly and bottom sealing washer and mutually supports, guarantees that the casing head seals up the effect.
Description
Technical field
This utility model is related to a kind of casing head, specifically a kind of slips mandrel interchangeable Multifunctional casing head.
Background technology
Casing head, that is, be used for the well head of fixing drilling well, connect wellhead casing pipe post, in order to support protective casing and oil reservoir set
The gravity of pipe, seals the annular space between each layer pipe, and for installing preventer, tubing head, production tree provides transition to connect, and leads to
Cross two side port on casing head body, can carry out mending the construction operations such as crowded mud, monitoring and filling balance liquid.Complete set
Wellhead assembly is mainly made up of casing head, tubing head and oil recovery (gas) tree three parts, during drilling well, preventer is arranged on sleeve pipe
Wellhead for drilling is constituted on head；During completion, recovering the oil, (gas) tree is arranged on above casing head, that is, constitute (gas) well head dress that recovers the oil
Put, wherein, the Main Function of tubing head is to hang oil pipe, the annular space between sealing oil pipe and sleeve pipe；Recover the oil (gas)
The Main Function of tree is switch, controls and guiding gas stream and suspension oil pipe；The effect of casing head is to connect surface pipe, sealing
Annular space between sleeve pipe and sleeve pipe, and in casing head, the effect of hanger is to hang multilayer sleeve in well.Whole device
The formation testing completion jobs that requires special skills such as drilling well, well cementation and testing pressure down hole, well-flushing, fracture acidizing need to be met.During decentralization sleeve pipe,
If once situations such as there is cave-in in scene, and now mandrel hanger is not sat and is suspended to position it is necessary to hang mandrel
Hanging device is replaced by slips hanger immediately.And traditional mandrel hanger top needs to be connected with landing joint, its top is mother
Button, its external diameter designs according to the excircle dimension of box cupling in Drilling Design.Because the external diameter of box cupling than same model sleeve pipe is outer
Footpath is big, leads to the upper strata casing head of supporting mandrel hanger or the bottom secondary sealing of tubing head cannot be applied to slip-type hanger
The sleeve pipe blocking, therefore need again to allocate a set of matched upper strata casing head or tubing head to well site.So just lead to bore
The well cycle extended because of the waiting time, also led to, because laying in various sizes of casing head or tubing head, increased and be equipped to simultaneously
This.
Utility model content
For solving above-mentioned problem, the purpose of this utility model is to provide a kind of slips mandrel interchangeable many work(
Energy casing head, described sleeve pipe header structure is simple, it is possible to achieve slips hanger is exchanged with mandrel hanger, and good sealing effect.
For reaching above-mentioned purpose, the technical solution of the utility model is:
A kind of slips mandrel interchangeable Multifunctional casing head is it is characterised in that described sleeve pipe head includes: casing head is originally
Body, comprising: upper casing head part, tube head part of trapping；Mandrel hanger, this is internal to be arranged at described sleeve pipe head, and mandrel hangs
Hanging device is provided with middle bench, and the mandrel hanger periphery on middle bench is provided with left-hand screw；Top seal assembly,
It is arranged between casing head part and hanger, described top seal assembly includes pressing on the top that sets gradually from top to bottom
Ring, upper sealing gasket, pressure ring and top garter spring under top；Lower sealing assemblies, are arranged at and trap tube head part and hang
Between hanging device, described lower sealing assemblies include the first sealing ring, the second sealing ring and the 3rd setting gradually from top to bottom
Sealing ring；Bottom sealing ring, is arranged at the bottom of tube head part of trapping.
Further, described upper sealing gasket, the first sealing ring, the second sealing ring and bottom sealing ring are oil resistant rubber
Glue sealing ring.
Further, described upper sealing gasket, the material of the first sealing ring, the second sealing ring and bottom sealing ring are
Nitrile rubber.
Further, described 3rd sealing ring is metal o-ring.
Further, described 3rd sealing ring is stainless steel metal sealing ring.
The beneficial effects of the utility model are:
A kind of slips mandrel interchangeable Multifunctional casing head described in the utility model, 1. platform in the middle part of mandrel hanger
The top correct position of rank circumference is provided with left-hand screw stricture of vagina, enters instrument mandrel hanger is sent into casing head in order to coordinate under hanger
This is internal and takes out mandrel hanger, need not change upper strata casing head and tubing head, changes rapidly slips hanger into, saves work
Make the time；2. the 3rd sealing ring in lower sealing assemblies is metal o-ring, compared with rubber seal more resistant to high temperature, high pressure, enters
One step ensures the reliability of sealing；3. top seal assembly pushes ring group one-tenth using top upper press ring, upper sealing gasket, top
Plane double sealing structure, and with pressure ring under garter spring axial restraint, thus ensureing stablizing of plane double sealing structure, Jin Erbao
Demonstrate,prove the sealing effectiveness of upper seal member.
Brief description
Fig. 1 is a kind of structural representation of slips mandrel interchangeable Multifunctional casing head provided by the utility model；
Fig. 2 is the mandrel casing head in a kind of slips mandrel interchangeable Multifunctional casing head provided by the utility model
Structural representation.
Wherein: 1 is upper casing head part, 2 is tube head part of trapping, and 3 is mandrel hanger, and 31 is left-hand screw stricture of vagina, and 4 is upper
Portion's black box, 41 is top upper press ring, and 42 is upper sealing gasket, and 43 is pressure ring under top, and 44 is top garter spring, and 5 are
Lower sealing assemblies, 51 is the first sealing ring, and 52 is the second sealing ring, and 53 is the 3rd sealing ring, and 6 is bottom sealing ring.
Specific embodiment
Referring to Fig. 1, Fig. 2, a kind of slips mandrel interchangeable Multifunctional casing head is it is characterised in that described sleeve pipe head bag
Include: casing head body, comprising: upper casing head part 1, tube head part 2 of trapping；Mandrel hanger 3, is arranged at described sleeve pipe head
This is internal, and mandrel hanger 3 is provided with middle bench, and the mandrel hanger periphery on middle bench is provided with left-hand screw
31；Top seal assembly 4, is arranged between casing head part 1 and hanger 3, described top seal assembly 4 include from toward
Under set gradually top upper press ring 41, upper sealing gasket 42, pressure ring 43 and top garter spring 44 under top；Lower seal
Assembly 5, is arranged at and traps between tube head part 2 and hanger 3, and described lower sealing assemblies 5 include setting gradually from top to bottom
The first sealing ring 51, the second sealing ring 52 and the 3rd sealing ring 53；Bottom sealing ring 6, is arranged at tube head part 2 of trapping
Bottom.
Further, described upper sealing gasket 42, the first sealing ring 51, the second sealing ring 52 and bottom sealing ring 6 are equal
For oil resistant rubber sealing ring.
Further, described upper sealing gasket 42, the first sealing ring 51, the second sealing ring 52 and bottom sealing ring 6
Material is nitrile rubber.
Further, described 3rd sealing ring 53 is metal o-ring.
Further, described 3rd sealing ring 53 is stainless steel metal sealing ring.
A kind of slips mandrel interchangeable Multifunctional casing head described in the utility model, platform in the middle part of mandrel hanger 3
The top correct position of rank circumference is provided with left-hand screw stricture of vagina 31, enters instrument mandrel hanger is sent into sleeve pipe in order to coordinate under hanger
This is internal for head, when needing to change slips hanger, again by under enter instrument and go deep in casing head body, with its underpart screw thread with
The left-hand screw stricture of vagina of the upper end of mandrel hanger 3 cooperates, thus taking out mandrel hanger 3, rapidly will chi corresponding to casing head
Very little slips hanger loads casing head, and this is internal, you can smoothly completes slips hanger and the exchange of mandrel hanger 3, is not required to
Redistribution upper strata casing head or tubing head, save working time and cost, another setting top seal assembly 4, lower seal group
Part 5 and bottom sealing ring 6 cooperates it is ensured that the sealing effectiveness of casing head；The 3rd sealing ring in lower sealing assemblies 5
53 is metal o-ring, compared with rubber seal more resistant to high temperature, high pressure, is further ensured that the reliability of sealing；. top seal assembly
The 4 plane double sealing structures being formed using pressure ring 43 under top upper press ring 41, upper sealing gasket 42, top, and use garter spring
Pressure ring 43 under 44 axial restraints, thus ensureing stablizing of plane double sealing structure, upper sealing gasket 42 is located at top upper press ring 41
In the axial grip of pressure ring under top 43, it has been always ensured that the sealing effectiveness of upper seal member.
It should be noted that above example is only in order to illustrate the technical solution of the utility model and unrestricted.Although ginseng
According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to reality
Modified or equivalent with new technical scheme, without deviating from the scope of technical solutions of the utility model, it all should
Cover in right of the present utility model.
Claims (5)
1. a kind of slips mandrel interchangeable Multifunctional casing head is it is characterised in that described sleeve pipe head includes:
Casing head body, comprising: upper casing head part, tube head part of trapping；
Mandrel hanger, this is internal to be arranged at described sleeve pipe head, and mandrel hanger is provided with middle bench, on middle bench
Mandrel hanger periphery be provided with left-hand screw stricture of vagina；
Top seal assembly, is arranged between casing head part and hanger, and described top seal assembly is included from top to bottom
The top upper press ring that sets gradually, upper sealing gasket, pressure ring and top garter spring under top；
Lower sealing assemblies, are arranged at and trap between tube head part and hanger, described lower sealing assemblies are included from top to bottom
The first sealing ring, the second sealing ring and the 3rd sealing ring setting gradually；
Bottom sealing ring, is arranged at the bottom of tube head part of trapping.
2. a kind of slips mandrel interchangeable Multifunctional casing head according to claim 1 is it is characterised in that described top
Sealing ring, the first sealing ring, the second sealing ring and bottom sealing ring are oil resistant rubber sealing ring.
3. a kind of slips mandrel interchangeable Multifunctional casing head according to claim 2 is it is characterised in that described top
Sealing ring, the material of the first sealing ring, the second sealing ring and bottom sealing ring are nitrile rubber.
4. a kind of slips mandrel interchangeable Multifunctional casing head according to claim 1 is it is characterised in that the described 3rd
Sealing ring is metal o-ring.
5. a kind of slips mandrel interchangeable Multifunctional casing head according to claim 4 is it is characterised in that the described 3rd
Sealing ring is stainless steel metal sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465615.6U CN205895195U (en) | 2016-05-19 | 2016-05-19 | Multi -functional casing head of slips dabber interchangeable formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620465615.6U CN205895195U (en) | 2016-05-19 | 2016-05-19 | Multi -functional casing head of slips dabber interchangeable formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205895195U true CN205895195U (en) | 2017-01-18 |
Family
ID=57765917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620465615.6U Active CN205895195U (en) | 2016-05-19 | 2016-05-19 | Multi -functional casing head of slips dabber interchangeable formula |
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| Country | Link |
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| CN (1) | CN205895195U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267956A (en) * | 2018-10-24 | 2019-01-25 | 山东科瑞井控系统制造有限公司 | It is a kind of for shortening the wellhead assembly bottom connecting device of a spudding well activity duration |
| CN113006731A (en) * | 2021-04-23 | 2021-06-22 | 京鸿石油钻采工程技术有限公司 | Self-locking casing head |
| CN114909102A (en) * | 2021-02-08 | 2022-08-16 | 中国石油天然气股份有限公司 | Petroleum drilling wellhead casing pipe suspension structure and casing pipe suspension method |
| CN115341870A (en) * | 2022-08-24 | 2022-11-15 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | High-temperature steam upward-spraying prevention device for well washing and tripping of high-temperature geothermal well |
-
2016
- 2016-05-19 CN CN201620465615.6U patent/CN205895195U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267956A (en) * | 2018-10-24 | 2019-01-25 | 山东科瑞井控系统制造有限公司 | It is a kind of for shortening the wellhead assembly bottom connecting device of a spudding well activity duration |
| CN109267956B (en) * | 2018-10-24 | 2024-03-29 | 威飞海洋装备制造有限公司 | Wellhead bottom connecting device for shortening drilling operation time |
| CN114909102A (en) * | 2021-02-08 | 2022-08-16 | 中国石油天然气股份有限公司 | Petroleum drilling wellhead casing pipe suspension structure and casing pipe suspension method |
| CN114909102B (en) * | 2021-02-08 | 2024-09-27 | 中国石油天然气股份有限公司 | Petroleum drilling wellhead casing suspension structure and casing suspension method |
| CN113006731A (en) * | 2021-04-23 | 2021-06-22 | 京鸿石油钻采工程技术有限公司 | Self-locking casing head |
| CN113006731B (en) * | 2021-04-23 | 2022-08-12 | 京鸿石油钻采工程技术有限公司 | Self-locking casing head |
| CN115341870A (en) * | 2022-08-24 | 2022-11-15 | 山东省地质矿产勘查开发局第二水文地质工程地质大队(山东省鲁北地质工程勘察院) | High-temperature steam upward-spraying prevention device for well washing and tripping of high-temperature geothermal well |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |