CN101457636A - Reducing slip for tube fastener for oil tube - Google Patents
Reducing slip for tube fastener for oil tube Download PDFInfo
- Publication number
- CN101457636A CN101457636A CNA2009100137465A CN200910013746A CN101457636A CN 101457636 A CN101457636 A CN 101457636A CN A2009100137465 A CNA2009100137465 A CN A2009100137465A CN 200910013746 A CN200910013746 A CN 200910013746A CN 101457636 A CN101457636 A CN 101457636A
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- oil
- slip
- involutory
- pipe
- oil pipe
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Abstract
The invention discloses an oil pipe catcher variable diameter slip used in the oil industry, which is used on the oil pipe catcher for clamping the oil pipe and is used when the oil pipe is run and pulled in the oil well operation. The oil pipe catcher variable diameter slip comprises a main body and a link handle, wherein the main body is formed by two involutory semi-circular bodies and slip inserts are arranged on involutory arc surfaces. The involutory arc surfaces of the main body are also provided with arc segments with the same core but different diameters, the arc segments are used for clamping pipe bodies of different diameters. The variable diameter slip is unnecessary to be changed when the pipe diameter changes, which is applicable to combined layer pipe column operation under pressure; the slip does not need to be changed, thus improving the working efficiency The variable diameter slip is used on the domestically manufactured equipments operating under pressure and can implement the rountrip of combined layer pipe columns.
Description
Technical field
The present invention relates to the Operating Pressure equipment, particularly reducing slip for tube fastener for oil tube of oil exploitation, be used in mounting board oil pipe on the oil pipe pipe clamping device, when the oil well operation removes oil pipe, use.
Background technology
In petroleum industry, the extensive use abroad of Operating Pressure technology, because of oil well adopts the mining type of individual well individual layer system more, down-hole string is simple in structure, and the fixedly pipe clamping device of its Operating Pressure device and the pipe clamping device that moves about all are installed on the outside of blowout preventer set can satisfy the Operating Pressure technological requirement.Like this, when running into the down-hole and be the combined string of two kinds of specifications, just can remove combined string by the slips of changing corresponding specification.The structure of this slips mainly is made of the two cover slips bodies and the slip insert section on it of symmetry, this slips exists following shortcoming or deficiency: 1, can only be used for the oil pipe of a kind of caliber of card, pipe clamping device need be replaced with the slips of corresponding specification, inconvenient operation simultaneously during the oil pipe specifications vary; 2, the slips of different size has increased storage capacity and processing capacity, takies and lets funds lie idle, if the storage time is long, its maintenance work amount is big, if maintain bad, also can corrosion, cause waste.At present, domesticly Operating Pressure technical research and application have also been carried out, but, it is mining type that domestic oil well adopts the individual well multilayer, down-hole string mostly is the layer and section tubing string, complex structure works the interior tubing string of going into the well in order to realize segmentation obstruction and segmentation, and the fixedly pipe clamping device of Operating Pressure device must be installed on the inside of blowout preventer set and could implement.Like this, when running into the down-hole and be the combined string of two kinds of specifications, owing in the blowout preventer set pressure is arranged, just can't take the slips that fixing pipe clamping device is changed corresponding specification apart, therefore, the Operating Pressure equipment of domestic production at present can't be implemented the rountrip of layering combined string.
Summary of the invention
The purpose of this invention is to provide reducing slip for tube fastener for oil tube, adopt the slips of variable-diameter structure, make a cover slips can be used for the above oil pipe of two kinds of specifications of mounting board, overcome effectively or avoid above-mentioned problems of the prior art, increase work efficiency.
Adopt the present technique solution can reach above-mentioned purpose: reducing slip for tube fastener for oil tube comprises body and connection handle, and body is two involutory semicircular body, and its involutory cambered surface is provided with slip insert.Also be provided with the segmental arc of concentric Different Diameter on the involutory cambered surface of body, be used for the body of mounting board different-diameter.
The present invention compared with prior art has following obvious improvement:
1, this reducing slips need not to change slips when caliber changes, and is suitable for making up the layered cylinders cornice and presses operation;
2, with one heart the segmental arc of Different Diameter be about, the bilateral symmetry structure, it is stressed evenly to make institute block body, oil pipe be difficult for quilt block flat, reliable operation, safe in utilization;
3, need not change slips, obviously improve operating efficiency, be used for the Operating Pressure equipment of domestic production, also can implement the rountrip of layering combined string.
4, use the present invention can make full use of cheap home equipment, reduce production costs.
Description of drawings
The mounting board view of Fig. 1 during for mounting board major diameter oil pipe of the present invention.
The mounting board view of Fig. 2 during for mounting board minor diameter tubing of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description: consult Fig. 1 and Fig. 2, reducing slip for tube fastener for oil tube, comprise body 1 and connection handle 4, body 1 is two involutory semicircular body, its involutory cambered surface is provided with slip insert, also be provided with the segmental arc of concentric Different Diameter on the involutory cambered surface of body 1, under the situation of not changing body 1, realize the body of mounting board different-diameter.At least be provided with the segmental arc of the concentric Different Diameter of two kinds of sizes on the involutory cambered surface of body 1.With one heart the segmental arc of Different Diameter is an axial design on body 1, and the middle part is a minor diameter segmental arc 3, and both sides are major diameter segmental arcs 2, with the axial both sides segmental arc mounting board major diameter body of axial middle the segmental arc mounting board minor diameter body of body 1, usefulness body 1.Minor diameter segmental arc 3 pairing radian measure alpha are any one angles between 80 ° ~ 100 °.
In order to adapt to the actual needs of down-hole string, generally the involutory diameter with major diameter segmental arc 2 is designed to φ 89mm, is used for the oil pipe of mounting board φ 89; And the involutory diameter of minor diameter segmental arc 3 is designed to φ 73mm, be applicable to the oil pipe of mounting board φ 73.When the oil well operation rises or descend φ 89 oil pipes, the hydraulic cylinder piston rod of pipe clamping device promotes two slips bodies 1 and moves to the centre, the major diameter segmental arc 2 of φ 89 diameters is the chucking oil pipe automatically, in like manner, when the oil well operation rises or descend φ 73 oil pipes, also can tighten oil pipe automatically by the minor diameter segmental arc 3 of φ 73 diameters.
Claims (4)
1, reducing slip for tube fastener for oil tube comprises body (1) and connection handle (4), and body (1) is two involutory semicircular body, and its involutory cambered surface is provided with slip insert, it is characterized in that also being provided with on the involutory cambered surface of body (1) segmental arc of concentric Different Diameter.
2, reducing slip for tube fastener for oil tube according to claim 1 is characterized in that the segmental arc of concentric Different Diameter is an axial design on body (1), the middle part is minor diameter segmental arc (3), and both sides are major diameter segmental arc (2).
3, reducing slip for tube fastener for oil tube according to claim 2 is characterized in that the pairing radian measure alpha of minor diameter segmental arc (3) is any one angle between 80 ° ~ 100 °.
4, reducing slip for tube fastener for oil tube according to claim 1 is characterized in that being provided with at least on the involutory cambered surface of body (1) segmental arc of the concentric Different Diameter of two kinds of sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100137465A CN101457636A (en) | 2009-01-05 | 2009-01-05 | Reducing slip for tube fastener for oil tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100137465A CN101457636A (en) | 2009-01-05 | 2009-01-05 | Reducing slip for tube fastener for oil tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101457636A true CN101457636A (en) | 2009-06-17 |
Family
ID=40768733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100137465A Pending CN101457636A (en) | 2009-01-05 | 2009-01-05 | Reducing slip for tube fastener for oil tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101457636A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409970A (en) * | 2011-12-15 | 2012-04-11 | 贵州航天天马机电科技有限公司 | Porthole device for combined down-the-hole hammer |
| CN105422021A (en) * | 2015-12-23 | 2016-03-23 | 西安秦森科技有限公司 | Translational broken-line-shaped guide rail hydraulic chuck |
| CN111075369A (en) * | 2019-12-26 | 2020-04-28 | 河北新铁虎石油机械有限公司 | Return-stroke-free tubular column tripping device and under-pressure operation system |
-
2009
- 2009-01-05 CN CNA2009100137465A patent/CN101457636A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409970A (en) * | 2011-12-15 | 2012-04-11 | 贵州航天天马机电科技有限公司 | Porthole device for combined down-the-hole hammer |
| CN105422021A (en) * | 2015-12-23 | 2016-03-23 | 西安秦森科技有限公司 | Translational broken-line-shaped guide rail hydraulic chuck |
| CN111075369A (en) * | 2019-12-26 | 2020-04-28 | 河北新铁虎石油机械有限公司 | Return-stroke-free tubular column tripping device and under-pressure operation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090617 |