CN201137476Y - Casing tube shaping device - Google Patents

Casing tube shaping device Download PDF

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Publication number
CN201137476Y
CN201137476Y CNU2008200280248U CN200820028024U CN201137476Y CN 201137476 Y CN201137476 Y CN 201137476Y CN U2008200280248 U CNU2008200280248 U CN U2008200280248U CN 200820028024 U CN200820028024 U CN 200820028024U CN 201137476 Y CN201137476 Y CN 201137476Y
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CN
China
Prior art keywords
piston
sizing
expansion
muffle
heater
Prior art date
Application number
CNU2008200280248U
Other languages
Chinese (zh)
Inventor
薛国富
魏嵬
郑油路
孙彦民
Original Assignee
西安集益石油技术有限公司
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Application filed by 西安集益石油技术有限公司 filed Critical 西安集益石油技术有限公司
Priority to CNU2008200280248U priority Critical patent/CN201137476Y/en
Application granted granted Critical
Publication of CN201137476Y publication Critical patent/CN201137476Y/en

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Abstract

The utility model relates to a muffle sizing equipment, wherein the upper end of an expansion pipe is provided with a gland and the lower end is provided with a top pillar, the expansion pipe is provided with an anchor bolt with a cooling pipe, the anchor bolt is provided with an external capsule and an internal heater, the heater and the cooling pipe are provided with expansive agent therebetween, the cooling pipe is provided with an internal cable connected with the expansive agent, a transmission piston is provided under the anchor bolt in the expansion pipe and is provided with an external return spring, whose lower end is connected with a working piston, the lower end of the working piston is provided with a piston head, the working piston and the piston head are provided in the top pillar, the lower end of the expansion pipe is provided with a lower cap whose upper end face is provided with a loosening spring, the expansive agent can expand after the connection with a power supply, the heater and the transmission piston transmit the energy to the working piston, the piston head connected integrally with the working piston moves downwards to push the top pillar to expand, thereby sizing the deformation portion of a muffle. The muffle sizing equipment has the advantages of better sizing effect, simple process, no damage on muffle and high sizing accuracy. The diameter of the muffle is not reduced after the sizing, and the working cost is reduced. The utility model is suitable for sizing an oil gas pipe of an oil field.

Description

The casing swage device
Technical field
The utility model belongs to method or the equipment technical field that producing oil, gas, water, solubilized maybe can be dissolved material from deep-well, is specifically related to the casing swage device.
Background technology
After the oil gas casing completion, big gauging, gas, well casing deformation phenomenon all can appear in the exploitation certain hour, and damage is in various degree all arranged.This to the oil field normally exploit, stable yields is very unfavorable.Therefore the sustainable development in oil field to be realized, the casing deformation and the damage problem of oil gas well and water injection well must be solved.
Along with growing to even greater heights of international oil price, domestic each oil field is for fecund goes out, high benefit exploitation, more and more takes and relies on some enhanced recovery measures, as high pressure water injection, pressure break and acidifying etc.Though temporarily obtained tangible economic benefit, simultaneously the working environment of sleeve pipe is constantly worsened, sleeve pipe produces constantly that corrosion is run-down to cause, distortion and bad break etc. damage phenomenon.In addition, thermal recovery technologies such as catalytic cracking, steam incoming and outcoming are adopted in the exploitation of heavy oil wells mostly, make sleeve pipe environment increase in temperature, and environment is more abominable, greatly the application life of reentrant bushing.
The oilfield old well natural depletion worsens year by year at present, cover damage situation is also serious day by day thereupon, though beat a large amount of new wells every year to stablize production capacity, but the old well stable yields in oil field still has certain difficulty, especially at present the technology of preventing and treating that sleeve pipe is damaged is difficult to satisfy the improvement needs, causes each oil field because cover decreases oil well cumulative year after year former thereby that stop production.
It is one of the most serious problem of puzzlement oil field development that sleeve pipe damages always.The oil gas casing damages, and is huge to the economic loss in oil field.China's sleeve in oil field rate of decay becomes 15% trend to rise in recent years, and it is also more and more, more and more serious that sleeve in oil field damages well, has seriously influenced the ordinary production in oil field, has caused enormous economic loss.The main cause that sleeve in oil field damages has that sleeve pipe is of poor quality, formation water burn into cementing quality is bad, the influence of lithology and the influence of construction operation around the influence of formation temperature, high pressure water injection, oil-water well.
The casing deformation type mainly contains ovalizing deflection, flexural deformation, single face crimp, necking deformation and hole enlargement and is out of shape five kinds.The type that casing collapse damages mainly contains sleeve pipe bad break form, sleeve pipe splits and corrosion failure form and microbial destruction form.
Casing deformation conventional machinery shaping tool is mainly contained: hydraulic system is carried out shaping, pyriform tube expander, blast reparation shaping.Adopt hydraulic system to carry out shaping, required ground installation is comparatively complicated, and the compressive resistance of pipeline, joint, valve is had relatively high expectations, and has hidden danger, and is subjected to the restriction of the hydraulic system pressure limit, and shaping tool is restricted the corrective force of sleeve pipe.The pyriform tube expander adopts impact force more, and is bigger to the damage of sleeve pipe.The shaping sleeve pipe is repaired in blast can't be very accurate to the Best available control technology of gunpowder, and the construction success rate is lower, serious accident takes place again and again.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the shortcoming of above-mentioned casing swage equipment, and a kind of reasonable in design, simple in structure, casing swage device that shaping effect is good is provided.
The technical scheme that solves the problems of the technologies described above employing is: the upper end at expansion tube is provided with gland, the lower end is provided with fore-set, the anchor that cooling tube is housed is set in the expansion tube fastens, anchor is fastened and is outside equipped with capsule, in heater is set, be provided with expansion agent between heater and the cooling tube, be provided with the cable that is connected with expansion agent in the cooling tube, the outside is set under anchor is fastened in expansion tube the drive piston that the returning spring lower end connects with the acting piston is installed, acting piston lower end is provided with piston head, acting piston and piston head are arranged in the fore-set, and the following cap that the upper surface is equipped with loosening spring is established in the lower end in the expansion tube.
Fore-set of the present utility model be shaped as cone.
The cone angle of fore-set of the present utility model is 30 °~60 °.
The utility model adopts expansion agent is set in expansion tube, volume expands rapidly behind expansion agent and the power connection, by heater and drive piston energy is transferred to the acting piston, the piston head that combines as a whole with the acting piston moves downward the expansion of promotion fore-set, and shaping is carried out in the casing deformation position.The utlity model has reasonable in design, simple in structure, shaping effect is good, safe, sleeve pipe is not had injury, shaping accuracy advantages of higher, do not reduce run through casing size after the shaping, simplify construction sequence, reduced operating cost, can on the oil field, be used for the shaping of oil gas pipe.
Description of drawings.
Fig. 1 is the structural representation of an embodiment of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but the utility model is not limited to these embodiment.
Embodiment 1
In Fig. 1, the casing swage device of present embodiment by gland 1, anchor fasten 2, capsule 3, cooling tube 4, heater 5, drive piston 6, returning spring 7, acting piston 8, piston head 9, loosening spring 10, cap 11, fore-set 12, expansion agent 13, expansion tube 14, cable 15 connect and constitute down.
The upper end of expansion tube 14 is a closing in shape, upper end at expansion tube 14 is equipped with gland 1 by thread connection, gland 1 is fastened 2 with anchor and is fixedly mounted in the expansion tube 14, the lower end of expansion tube 14 and fore-set 12 are connected as a single entity, the lower end of expansion tube 14 also can combine as a whole by screw thread with fore-set 12, fore-set 12 be shaped as cone, cone angle is 45 °, anchor is fastened 2 center cooling tube 4 is installed, anchor is fastened outside 2 the bottom capsule 3 is housed, wrap up in heater 5 in the capsule 3, be filled with expansion agent 13 between heater 5 and the cooling tube 4, the commodity of expansion agent 13 for selling on the market.Cable 15 is housed in the cooling tube 4, and insert in the expansion agent 13 end of cable 15, and behind cable 15 and the power connection, expansion agent 13 expands rapidly, and volume increase, and discharge a large amount of heat energy is gone out thermal energy conduction by heater 5.Cooling tube 4 is used for the effect of expansion agent 13 outage back cooling expansion tubes 14.Anchor is fastened 2 times drive piston 6 is installed in expansion tube 14, the outer cover of drive piston 6 is equipped with returning spring 7, there is acting piston 8 lower end of drive piston 6 by thread connection, the lower end welding of acting piston 8 is connected with piston head 9, acting piston 8 and piston head 9 are installed in the fore-set 12, and fore-set 12 is used for expanding or shrinking sleeve pipe is carried out shaping.Lower end in the expansion tube 14 is equipped with down cap 11, and the shape of following cap 11 is identical with the shape of sunk screw, and the upper surface of cap 11 is equipped with loosening spring 10 down in expansion tube 14.When piston head 11 moves downward upper/lower positions, piston head 11 and loosening spring 10 overlap joints, drive piston 6 moves downward and transmits energy to acting piston 8, acting piston 8 moves downward, the piston head 9 of acting piston 8 and acting piston 8 lower ends promotes fore-set 12 and expands, and shaping is carried out in the casing deformation position.When cable 15 deenergizations, expansion agent 13 volume contractions under the effect of loosening spring 10, promote piston head 11 and move upward.This casing swage device, have shaping effect good, safe, sleeve pipe is not had injury, shaping accuracy advantages of higher, do not reduce run through casing size after the shaping, simplified construction sequence, reduced operating cost.
Embodiment 2
In the present embodiment, the cone angle of fore-set 12 is 30 °.The connecting relation of other component and component is identical with embodiment 1.
Embodiment 3
In the present embodiment, the cone angle of fore-set 12 is 60 °.The connecting relation of other component and component is identical with embodiment 1.
Operating principle of the present utility model is as follows
Expansion tube 14 upper ends of the utility model device are by connecting the cable 15 of oil field cable car in the gland 1, during the power connection of expansion agent 13 and cable 15, expansion agent 13 volumes expand rapidly, by heater 5 energy is transferred to drive piston 6, drive piston 6 moves back and forth and transfers energy to acting piston 8, the piston head 11 that acting piston 8 and acting piston 8 combine as a whole moves downward upper/lower positions, piston head 11 and loosening spring 10 overlap joints, promoting fore-set 12 expands, because the profile of fore-set 12 is a cone, and shaping is carried out in the casing deformation position, finish shaping after, disconnect the electric current of cable car, expansion agent 13 volume contractions, cooling tube 4 make expansion tube 14 cooling coolings, by drive piston 6, acting piston 8 makes fore-set 12 shrink, this moment can more than carry or transfer expansion tube 14, to the shaping repeatedly of casing deformation position.

Claims (3)

1, a kind of casing swage device, it is characterized in that: be provided with gland (1) in the upper end of expansion tube (14), the lower end is provided with fore-set (12), the anchor that cooling tube (4) is housed is set in the expansion tube (14) fastens (2), anchor is fastened (2) and is outside equipped with capsule (3), in heater (5) is set, be provided with expansion agent (13) between heater (5) and the cooling tube (4), be provided with the cable (15) that is connected with expansion agent (13) in the cooling tube (4), anchor is fastened and the outside is set under (2) returning spring (7) lower end and the drive piston (6) that connects of acting piston (8) are installed in expansion tube (14), acting piston (8) lower end is provided with piston head (9), acting piston (8) and piston head (9) are arranged in the fore-set (12), and the following cap (11) that the upper surface is equipped with loosening spring (10) is established in the lower end in the expansion tube (14).
2, according to the described casing swage device of claim 1, it is characterized in that: said fore-set (12) be shaped as cone.
3, according to claim 1 or 2 described casing swage devices, it is characterized in that: the cone angle of said fore-set (12) is 30 °~60 °.
CNU2008200280248U 2008-01-03 2008-01-03 Casing tube shaping device CN201137476Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200280248U CN201137476Y (en) 2008-01-03 2008-01-03 Casing tube shaping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200280248U CN201137476Y (en) 2008-01-03 2008-01-03 Casing tube shaping device

Publications (1)

Publication Number Publication Date
CN201137476Y true CN201137476Y (en) 2008-10-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200280248U CN201137476Y (en) 2008-01-03 2008-01-03 Casing tube shaping device

Country Status (1)

Country Link
CN (1) CN201137476Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418489A (en) * 2011-12-15 2012-04-18 西安通源石油科技股份有限公司 Shape correcting machine for reshaping oil-gas well sleeve
CN103835674A (en) * 2014-03-04 2014-06-04 岳维建 Fast safe solid expandable tube reinforcement device for oilfields

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418489A (en) * 2011-12-15 2012-04-18 西安通源石油科技股份有限公司 Shape correcting machine for reshaping oil-gas well sleeve
CN103835674A (en) * 2014-03-04 2014-06-04 岳维建 Fast safe solid expandable tube reinforcement device for oilfields
CN103835674B (en) * 2014-03-04 2016-03-02 岳维建 Oil field fast and safely solid expansion pipe bracing means

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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: 20081022

Termination date: 20100203