CN201057014Y - Multifunctional casing head - Google Patents
Multifunctional casing head Download PDFInfo
- Publication number
- CN201057014Y CN201057014Y CNU2007201699678U CN200720169967U CN201057014Y CN 201057014 Y CN201057014 Y CN 201057014Y CN U2007201699678 U CNU2007201699678 U CN U2007201699678U CN 200720169967 U CN200720169967 U CN 200720169967U CN 201057014 Y CN201057014 Y CN 201057014Y
- Authority
- CN
- China
- Prior art keywords
- spring
- bolt
- suspension joint
- pressing plate
- casing
- 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 - Lifetime
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Abstract
The utility model relates to a multifunctional casing head used when the petroleum drilling is accomplished. The multifunctional casing head comprises an upper pressing plate (4), sealing filler (5), a lower pressing plate (6), a spring (7), a two halves type bearing slip (11) and a guide temporary hole(13), wherein the sealing filler (5) is arranged between the upper pressing plate (4) and the lower pressing plate (6), a sealing pressing cover (2) is connected with the two halves type bearing slip (11) through a bolt (3), the two halves type bearing slip (11) is connected with a suspension joint (12) through a bolt (8), the spring (7) is arranged on a spring locating piece (9), and the guide temporary hole(13) is arranged on the suspension joint (12). The utility model is suitable for the fixing of various surface casing tubes and oil layer casing tubes or intermediate casing tubes and oil layer casing tubes, and enables the possible high pressure gas or liquid to be discharged through the guide temporary hole.
Description
Technical field
The well mouth sealing device that the utility model uses when being the oil drilling completion, that is: multi-functional casing head, it is applicable to the fixing of various surface pipes or protective casing and production string, can realize the annular space Fast Installation.
Background technology
At present, domestic existing single-stage casing head function singleness, efficient is lower, is difficult to satisfy the demand of all kinds of oil gas well well head sealings
Summary of the invention
The purpose of this utility model is to provide a kind of multi-functional casing head, and it is the multi-functional casing head of single-stage, plays to hang fixedly production string, makes production string placed in the middle; The ring-like space of sealing production string and outer layer sleeve; Bear not interval isolation casing wt and oil recovery flow string weight; Gases at high pressure that may exist in the annular space or liquid can be discharged by water conservancy diversion operation hole; Effects such as special operation can also be carried out in water conservancy diversion operation hole simultaneously.
The technical solution adopted in the utility model is: comprise casing coupling 1, gland 2, bolt 3, top board 4, airtight and watertight padding 5, lower platen 6, spring 7, bolt 8, spring spacer 9, ring gasket 10, split carrying slips 11, suspension joint 12, water conservancy diversion operation hole 13, production string 14, casing coupling 1 is connected with production string 14, between top board 4 and the lower platen 6 airtight and watertight padding 5 is housed, gland 2 by bolt 3 with split the carrying slips 11 be connected, splitting carrying slips 11 is connected with suspension joint 12 by bolt 8, spring spacer 9 is provided with spring 7, and suspension joint 12 is provided with water conservancy diversion operation hole 13.
Split between carrying slips 11 and the suspension joint 12 and be provided with ring gasket 10.
Advantage of the present utility model is: it is the multi-functional casing head of a kind of single-stage, uses when drilling completion, and surface pipe (or protective casing) connects with production string and seals when being suitable for prospect pit, producing well completion.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
As shown in drawings, this device is behind drilling completion during on-the-spot the use, suspension joint 12 is connected on the surface pipe (or protective casing), install between surface pipe (or protective casing) and the production string and split carrying slips 11, splitting carrying slips 11 bears production string load and can be stuck in the locking of production string surface at random, airtight and watertight padding 5, ring gasket 10, top board 4, lower platen 6 is at bolt 3, under the effect of bolt 8,5 distortion of compression seal filler, ring gasket 10 compresses sealing, the annular space of sealing surface pipe (or protective casing) and production string 14.Spring 7 is enclosed in the spring spacer 9, moves when preventing spring 7 assembling, and spring force acts on to be split on the carrying slips 11, carry on when preventing the Yin Kawa wedging to sleeve body the production string slips along with on move.Water conservancy diversion operation hole 13 can be carried out exhaust, liquid and be carried out special operation.
This single-stage Multifunctional casing head also has following spy except the repertoire with conventional cannula head Point: airtight and watertight padding is high temperature resistant, replaceable, so can be applicable to the wellhead sealing of thermal production well; Structure Simply; The processing and manufacturing difficulty is low; Volume is little; In light weight; It is rapidly convenient to install, the welding parts; Not changing the original characteristics such as setting of casing program, is the comparatively desirable special-purpose dress of wellhead sealing, carrying Put.
Claims (2)
1. multi-functional casing head, comprise casing coupling (1), gland (2), bolt (3), top board (4), airtight and watertight padding (5), lower platen (6), spring (7), bolt (8), spring spacer (9), ring gasket (10), split carrying slips (11), suspension joint (12), water conservancy diversion operation hole (13), production string (14), it is characterized in that: casing coupling (1) is connected with production string (14), between top board (4) and the lower platen (6) airtight and watertight padding (5) is housed, gland (2) by bolt (3) with split the carrying slips (11) be connected, splitting carrying slips (11) is connected with suspension joint (12) by bolt (8), spring spacer (9) is provided with spring (7), and suspension joint (12) is provided with water conservancy diversion operation hole (13).
2. multi-functional casing head according to claim 1 is characterized in that: split between carrying slips (11) and the suspension joint (12) and be provided with ring gasket (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201699678U CN201057014Y (en) | 2007-07-31 | 2007-07-31 | Multifunctional casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201699678U CN201057014Y (en) | 2007-07-31 | 2007-07-31 | Multifunctional casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057014Y true CN201057014Y (en) | 2008-05-07 |
Family
ID=39425854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201699678U Expired - Lifetime CN201057014Y (en) | 2007-07-31 | 2007-07-31 | Multifunctional casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057014Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275423A (en) * | 2014-06-15 | 2016-01-27 | 江苏宏泰石化机械有限公司 | Single-stage casing head with field-replaceable hanger |
| CN106321007A (en) * | 2016-08-31 | 2017-01-11 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | WE type slip casing suspender with double U-shaped sealing ring structure |
-
2007
- 2007-07-31 CN CNU2007201699678U patent/CN201057014Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275423A (en) * | 2014-06-15 | 2016-01-27 | 江苏宏泰石化机械有限公司 | Single-stage casing head with field-replaceable hanger |
| CN105275423B (en) * | 2014-06-15 | 2017-11-14 | 江苏宏泰石化机械有限公司 | It is a kind of can scene change hanger single-stage casing head |
| CN106321007A (en) * | 2016-08-31 | 2017-01-11 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | WE type slip casing suspender with double U-shaped sealing ring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080507 |