CN201513132U - Novel continuous oil pipe - Google Patents
Novel continuous oil pipe Download PDFInfo
- Publication number
- CN201513132U CN201513132U CN2009202268476U CN200920226847U CN201513132U CN 201513132 U CN201513132 U CN 201513132U CN 2009202268476 U CN2009202268476 U CN 2009202268476U CN 200920226847 U CN200920226847 U CN 200920226847U CN 201513132 U CN201513132 U CN 201513132U
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- oil pipe
- steel pipe
- continuous
- well
- drilling
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Abstract
The utility model relates to an oil pipe for oil exploration, in particular to a novel continuous oil pipe used for operation processes such as lateral well drilling, horizontal well drilling and the like. The technical scheme is as follows: the novel continuous oil pipe mainly consists of a continuous steel pipe and an anticorrosive coating, wherein the continuous steel pipe is continuously wound on a winder, the outer layer of the continuous steel pipe is coated with the anticorrosive layer, and the inner layer thereof is provided with a seamless steel pipe with equal diameter. The novel continuous oil pipe has the benefits of being applicable to slimhole well drilling, old well sidetracking and the like, effectively saving drilling cost, using less ground equipment, occupying small area, being especially suitable for ground operation or offshore platform operation with limited conditions, reducing influence on ambient environment, reducing well site construction and maintenance cost, and having fast, convenient and flexible equipment movement and installation.
Description
One, technical field:
The utility model relates to a kind of oil exploitation oil pipe, particularly a kind of new type of continuous oil pipe that is used for operation process such as sidetracked hole, horizontal well.
Two, background technology:
At present, along with applying of sidetracked hole technology, horizontal well technology and many wells technology, sidetracked hole, horizontal well, many wellbore well, casing patching well, casing deformation well increase day by day.Above-mentioned oil well is in operation process such as sand washing, drifting, because well is little, borehole size is inconsistent, if then tension strength is not enough to adopt minor diameter tubing, if adopting the major diameter oil pipe then to save hoop can not pass through, so present conventional belt joint hoop oil pipe can not satisfy the production needs, cause the generation of down-hole accident even the well that has can't be constructed.Chinese patent literature number is CN2737929 " outer latus rectum does not have joint hoop coiled tubing ", form by oil pipe body, box joint, male joint, be welded as a whole by pad at interval between oil pipe body and the box joint in it, the box joint is connected with male joint with screw thread, more than each parts constitute single combined coiled tubing, many single connections backs constitute coiled tubings.The problem of its existence is: oil pipe body and the box joint firm welding in it are poor, and the internal diameter at connector place is less.
Three, summary of the invention:
The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and the new type of continuous oil pipe of a kind of non junction and pipe aperture unanimity is provided.
Its technical scheme is: mainly be made up of continuous steel pipe and anticorrosive coat, described continuous steel pipe is wrapped on the wrapping head continuously, and the skin of continuous steel pipe scribbles anticorrosive coat, and internal layer is isodiametric steel pipe.
The beneficial effects of the utility model are: because coiled tubing does not have connector, assembling and dismounting connector not need not to employ crane yet thribble and four-way are installed, therefore so do not need to take time, operating personnel's site operation amount reduces, the also corresponding minimizing of casualty accident.Be applicable to slim hole drilling well, old well sidetracking etc., can effectively save drilling cost.Ground installation is few, and floor space is little, and restricted ground of the condition that is particularly suitable for or offshore platform operation can reduce the influence to surrounding environment, reduces the well site and builds and maintenance cost, and the equipment movement is quick for installation, convenient, flexible.
Four, description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is sectional views of the present utility model;
Lateral view when accompanying drawing 3 is the utility model winding.
Five, the specific embodiment:
1-3 in conjunction with the accompanying drawings, the utility model will be further described:
Mainly be made up of continuous steel pipe (1) and anticorrosive coat (2), described continuous steel pipe (1) is wrapped on the wrapping head (3) continuously, and the skin of continuous steel pipe (1) scribbles anticorrosive coat (2), and internal layer is isodiametric steel pipe.The external diameter of pipe of coiled tubing is generally the 0.75-3.5 inch, and wall thickness is 1.90-5.16mm.The length of the coiled tubing of a wrapping head winding can reach more than 5000 meter.Steel band needs to be rolled into through slitting, welding, tube operation such as tubulose, heat treatment and makes coiled tubing.
The material of low-intensity rank coiled tubing is mainly carbon steel.Carbon steel mainly relies on the solid solution strengthening effect of C to obtain the intensity of steel, though cheap, this steel welding performance is poor, and plasticity and toughness are bad.The material of high-plasticity continuous oil pipe is mainly stainless steel and ferroalloy steel.
Because the utility model does not have connector, so need not to take time assembling and dismounting connector also need not to employ crane installation thribble and four-way, obviously, and because of operating personnel's site operation amount reduces, the also corresponding minimizing of casualty accident.
The continuous oil pipe operation technology is compared with the routine work technology to have and is saved that cost, operation remove fast, high efficient construction. In drilling engineering; coiled tubing drilling can be realized underbalance friction jewel well operations safely; be conducive to protect oil-gas Layer; improve drilling speed, do not need termination of pumping to make up a joint, can realize the continuous circulation of drilling fluid; reduce the trip time; shorten drilling period, improve the security of make a trip speed and operation, avoid to cause because making up a joint the generation of blowout and lock of tool drilling.
This drilling technology is specially adapted to slim hole drilling well, old well sidetracking etc., can effectively save drilling cost. Ground installation is few, and floor space is little, and the restricted ground of the condition that is particularly suitable for or offshore platform operation can reduce the impact to surrounding environment, reduce the well site and build and maintenance cost,, the equipment movement is quick for installation, convenient, flexible. Simultaneously, the personnel that need reduce, and on average lack than conventional rig and use 2 people.
Claims (1)
1. new type of continuous oil pipe, it is characterized in that: mainly be made up of continuous steel pipe (1) and anticorrosive coat (2), described continuous steel pipe (1) is wrapped on the wrapping head (3) continuously, and the skin of continuous steel pipe (1) scribbles anticorrosive coat (2), and internal layer is isodiametric steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202268476U CN201513132U (en) | 2009-09-23 | 2009-09-23 | Novel continuous oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202268476U CN201513132U (en) | 2009-09-23 | 2009-09-23 | Novel continuous oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513132U true CN201513132U (en) | 2010-06-23 |
Family
ID=42484541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202268476U Expired - Fee Related CN201513132U (en) | 2009-09-23 | 2009-09-23 | Novel continuous oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287168A (en) * | 2011-07-22 | 2011-12-21 | 宝鸡石油钢管有限责任公司 | Steel oil extraction device with continuous oil pumping pipe |
-
2009
- 2009-09-23 CN CN2009202268476U patent/CN201513132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287168A (en) * | 2011-07-22 | 2011-12-21 | 宝鸡石油钢管有限责任公司 | Steel oil extraction device with continuous oil pumping pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20100923 |