CN2886063Y - Metal tube expansion tool - Google Patents
Metal tube expansion tool Download PDFInfo
- Publication number
- CN2886063Y CN2886063Y CN 200620083496 CN200620083496U CN2886063Y CN 2886063 Y CN2886063 Y CN 2886063Y CN 200620083496 CN200620083496 CN 200620083496 CN 200620083496 U CN200620083496 U CN 200620083496U CN 2886063 Y CN2886063 Y CN 2886063Y
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- diameter
- expansion
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- expanding
- expanding head
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Abstract
The utility model relates to a tool for expanding metal tubes, consisting of a work pipe column and an expanding cone, wherein the forepart of the expanding cone is an expanding head of a fixed diameter, and the rear part is an expanding head of variable diameter, and the forehead of the expanding head is connected with the work pipe column. The fixed-diameter expanding head and the variable-diameter expanding head are either integrated or detachable, wherein the portion of the variable-diameter expanding head is a valving structure of which valving lateral faces are cambered. The maximum diameter of the variable-diameter expanding head is bigger than the diameter of the fixed-diameter expanding head. The diameter of the variable-diameter expanding head is capable of self-regulating according to the expansive force. The utility model is suitable for expanding the metal tubes used for the oil well, gas well and the water well in the oil field, especially for the casing patch expansion and the sand control tube expansion.
Description
Technical field
The utility model relates to a kind of metal tube bloat tool, especially a kind of oil field oil, gas, well metal tube bloat tool that is applicable to.
Background technology
Bulged tube technology is with metal tube to be expanded design attitude in the well, is driving force by work string with machinery or hydraulic pressure, drive expansion cone, make metal tube to be expanded that permanent plastic strain takes place from top to bottom or from lower to upper, make its internal diameter or external diameter be expanded to the size of design, thereby finish a kind of technology of specific engineering purpose.The application of expansion tube in operation process such as oil drilling, completion, oil recovery, well workover is considered to one of core technology of 21 century petroleum drilling and mining industry.Industrial implementation has all been put in the several application field of this technology abroad, shows powerful growth momentum, causes the concern of petroleum works circle just day by day.In recent years, domestic petroleum scientific and technological circle have been noted that the development of external bulged tube technology, have recognized the important meaning of tube expansion technique for the Oil-Gas Well Engineering technical development of promotion China, have progressively carried out some preliminary research work.
Expansion cone plays an important role in the expanded radially field of realizing metal tube, and expansion cone will satisfy high mechanical property requirements, promptly has very high hardness, intensity and abrasion resistance.Research and experimental results show that, different expansion cone structures, the expansion operation is had a direct impact, and it is directly connected to required driving force size of size, the axial shrinkage amount of expansion sleeve, the wall thickness reduction of expansion sleeve, the expansion cone of expansion sleeve residual stress after expansion or the like.To the appropriate design of expansion mechanism, ensure carrying out smoothly of expansion operation, be one of key technology in the expansion sleeve technology.In the metal tube expansion technique, can adopt multiple expansion of structure cone." Southwest Petroleum Institute journal " 2004/04 phase has been reported a kind of design of expansion cone, and the diameter of its expansion cone is a fixed value.The oil metal tube is in the expanded downhole process, when oil, gas, well sleeve pipe or borehole wall out-of-shape, because the diameter after expansion tube expands is subjected to the restriction of expansion cone diameter, the applying sealing performance of its external diameter and the outer layer sleeve or the borehole wall was greatly affected after expansion tube expanded, sometimes expansion cone even do not pass through outer layer sleeve or borehole wall out-of-shape place causes engineering accident.Foreign patent WO2005/088070A1 discloses a kind of bloat tool structure, and its expansion cone is to come distinguish with straight line, processed complex when consequently distinguish is too much, and expansion force was big when distinguish was very few.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiency of prior art, to provide a kind of simple in structure, easy to operate, and expansion process is reliable and stable, is widely used in oil field oil, gas, well metal tube bloat tool.
The metal tube bloat tool that this practicality is new comprises work string, expansion cone.The front portion of expansion cone is the expansion-head part of fixed diameter, and the rear portion is the adjustable reducing expansion-head part of diameter.The reducing expansion-head partly is split into plural distinguish to be formed, and the side between the distinguish is the splitted structure of curved surface.
The expansion-head part and the adjustable reducing expansion-head of rear portion diameter of the anterior fixed diameter of described expansion cone partly are overall structure, can also be a minute body structure.After adopting the two parts that divide body structure to connect by joint is an overall structure.
The utility model is simple in structure, easy to operate, connect simple for process, expansion process is reliable and stable, sleeve pipe damages the subsidy of expanding when being specially adapted to oil, gas, well sleeve pipe or borehole wall out-of-shape, the internal diameter size was even and smooth after expansion tube expanded, and can satisfy actual demands of engineering under the complex conditions.
Description of drawings
Fig. 1 is a kind of integrally-built expansion schematic diagram of the utility model.
Fig. 2 is a kind of overall structure schematic diagram of the utility model.
Fig. 3 is a kind of overall structure schematic appearance of the utility model.
Fig. 4 is a kind of split structural representation of the utility model.
Fig. 5 is a kind of minute body structure schematic appearance of the utility model.
Among the figure: 1-work string, 2-expansion cone, 3-fixed expansion head, 4,7-reducing expansion-head, the curved surface slit between the 5-distinguish, 6-joint.
The specific embodiment
Be described further below in conjunction with the structure and the operating principle of accompanying drawing metal tube bloat tool described in the utility model:
Embodiment 1: as accompanying drawing 1, Fig. 2, shown in Figure 3, integrally-built expansion cone 2 links to each other with work string 1.Expansion cone 2 front portions are fixed diameter expansion-head parts 3, and the rear portion is a diameter adjustable reducing expansion-head part 4, and diameter adjustable reducing expansion-head part 4 is processed into N lobe distinguish, and the slit between the distinguish is a curved surface 5.
Embodiment 2: shown in attached Figure 4 and 5, expansion cone 2 is a global facility.Expansion cone 2 front portions are monomer fixed diameter expansion-head parts 3, and the rear portion also is a monomer diameter adjustable reducing expansion-head part 7.Diameter adjustable reducing expansion-head part 7 is processed into N lobe distinguish, and the slit between the distinguish is a curved surface 5.Connect the back by joint 6 between the two parts of front and back and become overall structures.Split type available being threaded can also connect with universal joint, also can other form one with mode and flexibly connect.
N in the foregoing description is not less than 2 natural number, span N=3～48, best value N=12～16.
In the use, expansion cone 2 links to each other with work string 1, and place the inside of expansion tube, bloat tool is in company with the design of work string 1 G.I.H together position, provide hydraulic coupling by work string 1 by the ground hydraulic system, expansion cone is advanced forward at the driving lower edge of hydraulic coupling expansion tube axis direction, and then extrusion expansion pipe and make metal tube to be expanded that permanent plastic strain take place, make its internal diameter or external diameter be expanded to the size of design, thereby finish the purpose of expansion engineering.
The beneficial effects of the utility model are, in expansion process, when outer layer sleeve or borehole wall out-of-shape, often the fixed diameter greater than the expansion cone of fixed diameter partly is difficult to pass through, and use the utility model bloat tool, this moment, the reducing expansion-head diameter that diameter is adjustable diminished under the effect of expansion force, thereby the diameter that has realized the reducing expansion-head is adjusted voluntarily with the size of expansion force.So just guaranteed under outer layer sleeve or borehole wall situation in irregular shape, still can finish expansion work.Owing to be to carry out distinguish with curved surface, the internal diameter size was even and smooth after expansion tube expanded.
Claims (3)
1, a kind of metal tube bloat tool, comprise work string, expansion cone, the front portion of expansion cone is the expansion-head part of fixed diameter, the rear portion is the adjustable reducing expansion-head part of diameter, the reducing expansion-head partly is split into plural distinguish to be formed, and it is characterized in that: the reducing expansion-head that the rear portion diameter is adjustable partly is that the side between the distinguish is the splitted structure of curved surface.
2, metal tube bloat tool according to claim 1 is characterized in that: the reducing expansion-head that the expansion-head part of the anterior fixed diameter of expansion cone and rear portion diameter are adjustable partly is overall structure.
3, metal tube bloat tool according to claim 1 is characterized in that: partly for dividing body structure, two parts are an overall structure after connecting by joint to the reducing expansion-head that the expansion-head part of the anterior fixed diameter of expansion cone and rear portion diameter are adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083496 CN2886063Y (en) | 2006-04-26 | 2006-04-26 | Metal tube expansion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083496 CN2886063Y (en) | 2006-04-26 | 2006-04-26 | Metal tube expansion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886063Y true CN2886063Y (en) | 2007-04-04 |
Family
ID=37961153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620083496 Expired - Fee Related CN2886063Y (en) | 2006-04-26 | 2006-04-26 | Metal tube expansion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886063Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100044030A1 (en) * | 2008-08-20 | 2010-02-25 | Enventure Global Technology, Llc | Geometrically Optimized Expansion Cone |
| CN107160178A (en) * | 2017-06-28 | 2017-09-15 | 江苏师范大学 | A kind of casing process line device |
| CN110640492A (en) * | 2019-09-05 | 2020-01-03 | 中国航发北京航科发动机控制系统科技有限公司 | Sleeve part clamping device and method |
-
2006
- 2006-04-26 CN CN 200620083496 patent/CN2886063Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100044030A1 (en) * | 2008-08-20 | 2010-02-25 | Enventure Global Technology, Llc | Geometrically Optimized Expansion Cone |
| US8251137B2 (en) * | 2008-08-20 | 2012-08-28 | Enventure Global Technology, Llc | Geometrically optimized expansion cone |
| CN107160178A (en) * | 2017-06-28 | 2017-09-15 | 江苏师范大学 | A kind of casing process line device |
| CN110640492A (en) * | 2019-09-05 | 2020-01-03 | 中国航发北京航科发动机控制系统科技有限公司 | Sleeve part clamping device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GU LI Free format text: FORMER OWNER: SHENGLI OIL FIELD GUMAO PETROLEUM ENGINEERING CO., LTD. Effective date: 20080613 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Corn Inventor after: deer Qiyi Inventor after: Ruan Jianfei Inventor before: Deer Qiyi Inventor before: Ruan Jianfei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LU KAI-YI; RUAN JIANFEI TO: GU LI; LU KAI-YI; RUAN JIANFEI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20080613 Address after: Beijing Beiyuan Road Chaoyang District City, No. 86 Park F-3-1402, zip code: 100101 Patentee after: Gu Li Address before: Dongying District of Shandong city of Dongying province Sheng Tai Road No. 8 Sheng Hotel Room 301, zip code: 257000 Patentee before: Shengli Oilfield Gumao Petroleum Engineering Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN BOHAI DADI HIGH-TECH CO., LTD. Free format text: FORMER OWNER: GU LI Effective date: 20081017 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081017 Address after: North of main road, Beichen Development Zone, Tianjin (Beichen Economic Development Zone Corporation), postcode: 300400 Patentee after: Bohai Tianjin Dadi Hi Tech Co., Ltd. Address before: Beijing Beiyuan Road Chaoyang District City, No. 86 Park F-3-1402, zip code: 100101 Patentee before: Gu Li |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070404 Termination date: 20140426 |