CN101709632A - Rotary reducing expansion device - Google Patents
Rotary reducing expansion device Download PDFInfo
- Publication number
- CN101709632A CN101709632A CN200910219919A CN200910219919A CN101709632A CN 101709632 A CN101709632 A CN 101709632A CN 200910219919 A CN200910219919 A CN 200910219919A CN 200910219919 A CN200910219919 A CN 200910219919A CN 101709632 A CN101709632 A CN 101709632A
- Authority
- CN
- China
- Prior art keywords
- central tube
- piston
- expansion
- awl
- fluid cylinder
- 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.)
- Granted
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- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 24
- 238000004513 sizing Methods 0.000 claims description 7
- 241000397426 Centroberyx lineatus Species 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Actuator (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
A rotatory reducing expansion device that oil drilling, well workover and well completion operation were used comprises top connection, center tube, fixing base, staple, ring spring, inflation piece, drive awl, shearing nail, check screw, hydraulic cylinder cover, piston, reset spring, piston outer seal circle, piston inner seal circle, hydraulic cylinder tip sealing washer: the upper end of the upper joint is in threaded connection with the feeding lifting pipe column, and the lower end of the upper joint is in threaded connection with the central pipe; the two ends of the central pipe are provided with external threads, and the lower end of the central pipe is connected with a guide shoe or an expansion pressure limiting valve; the upper part of the central tube is provided with 2 raised steps, the upper step is provided with a T-shaped guide positioning groove matched with the fixed seat, the lower part of the upper step is provided with a hydraulic hole, and the lower step is provided with an axial through groove; the fixed seat is in threaded connection with the central tube through a fixed nail; the expansion block is connected with the driving cone in a sliding mode, and the central pipe and the hydraulic cylinder sleeve are sealed through a sealing ring; the hydraulic cylinder sleeve is in threaded connection with the central pipe. The device solves the problems of safety accidents such as expansion cone bypass blocking, pipe column breaking or high-pressure liquid leakage and the like. Can be widely used for petroleum drilling, well repairing and well completion operations.
Description
Technical field:
The present invention relates to a kind of rotary variable-diameter expansion device that oil drilling, well workover and completion practice are used.
Background technology:
Along with the development of equal diameter drilling technology and expansion tube casing patching technology, expansion tube expansion operation more and more is applied in the middle of oil drilling and repairing well and the completion construction.Existing expansion tube operation is adopted hydraulic pressure or mechanical system to drive the bloated awl of sizing basically and is moved axially along expansion tube, and then expansion tube generation plastic strain, and its intimate is abutted on the internal surface of sleeve pipe that is draped or subsidizes.Yet when the impaired distortion of outer sleeve; or its inwall is when irregular; the expanded radially of expansion tube and the axially-movable of expansion cone usually can be restricted; cause driving the slide force increase of expanding and boring; even security incident occurs awl is met card, tubing string is broken as expanding or highly pressurised liquid leakage etc., influence normal safe construction.Therefore be necessary to develop a kind of device, can change the external diameter of expansion cone within the specific limits, realize that the variable cross-section of expansion tube expands, improve the safety and the compliance of expansion tube operation, reduce construction period and cost.
Summary of the invention:
The purpose of this invention is to provide a kind of rotary variable-diameter expansion device, this device solves the expansion tube operation that exists in the prior art adopt hydraulic pressure or the Mechanical Driven sizing awl that expands to move axially along expansion tube, and then expansion tube produces plastic strain, its external surface is close to is leaned against on the internal surface of sleeve pipe that is draped or subsidizes, when the impaired distortion of outer sleeve, or its inwall is when irregular, the expanded radially of expansion tube and the axially-movable of expansion cone often are restricted, cause driving the slide force increase of expanding and boring, even the circuitous card of awl that occur to expand, tubing string is broken or the problem of security incident such as highly pressurised liquid leakage.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rotary variable-diameter expansion device, be made up of top connection, central tube, holder, staple, ring spring, expanding block, driving awl, shearing nail, backing-up screw, fluid cylinder cover, piston, back-moving spring, piston exterior seal ring, piston inner seal ring, fluid cylinder end sealing ring: the top connection two ends are internal thread, the upper end lifts tubing string and is threaded with sending into, and the lower end is threaded with central tube; The central tube two ends are external screw thread, and its lower end connects guide shoe or expansion pressure limiting valve; The central tube bottom is provided with a plurality of hydraulic pressure hole, and the fluid of central tube inwall is entered in the fluid cylinder cover; Central tube top is provided with 2 raised step, and upper step has T font guide-localization groove and cooperates with holder, bears axial force and forward twisting resistance; The central tube lower step is provided with axial pass trough, and groove quantity is consistent with the T font guide-localization groove quantity of central tube; Holder is provided with screwed hole, is threaded with central tube by staple; The holder bottom radially is provided with T font guide and limit groove, can make expanding block in axial and radially trace slip; Ring spring has certain elasticity tension, can provide certain convergent force for expanding block; Driving awl top is a conical surface, is slidingly connected by rectangle, T shape or swallowtail trough structure between expanding block and the driving awl, drives awl and realizes initial fixation with central tube by the shearing nail; Driving the awl bottom is connected with loosening nail fixing with piston thread; Piston is stepped loop configuration, and its underpart surfaces externally and internally is respectively equipped with piston exterior seal ring, piston inner seal ring, the hydraulic packing of realization and central tube and fluid cylinder cover; Between piston and the central tube back-moving spring is installed, two ends lean respectively on step; The fluid cylinder cover is connected with the central tube lower thread, realizes sealing by fluid cylinder end sealing ring; The present invention is by driving the radial height that changes expanding block that moves axially of awl, can satisfy the needs that variable cross-section expands preferably, have certain expansion contact force adaptivity, overcome the sizing expansion gear expand circuitous card, expansion force is excessive or shortcoming such as expanded radially power deficiency.
The invention has the beneficial effects as follows: the present invention adopts radially can debug expanding block change bloat tool external diameter, and by rotating the expansion operation of the realization expansion tube that expands, have good variable cross-section expansion compliance, overcome the sizing expansion gear expand circuitous card, expansion force is excessive or the hypodynamic shortcoming of expanded radially; For the unidimensional expansion tube of expansion phase, this invention has littler original outer diameter and compliance widely than common sizing expansion gear; Structure of the present invention is simpler, and convenient and quick construction has improved safety of construction and operating efficiency, reduces operating cost.
Description of drawings
Accompanying drawing is a body structural representation of the present invention.
Among the figure, 1, top connection, 2, central tube, 3, holder, 4, staple, 5, ring spring, 6, expanding block, 7, drive awl, 8, shear nail, 9, loosen screw, 10, the fluid cylinder cover, 11, piston, 12, back-moving spring, 13, piston exterior seal ring, 14, the piston inner seal ring, 15, fluid cylinder end sealing ring.
The specific embodiment:
In the accompanying drawings, a kind of rotary variable-diameter expansion device, by top connection 1, central tube 2, holder 3, staple 4, ring spring 5, expanding block 6, drive awl 7, shear nail 8, loosen screw 9, fluid cylinder cover 10, piston 11, back-moving spring 12, piston exterior seal ring 13, piston inner seal ring 14, fluid cylinder end sealing ring 15 form; Top connection 1 two ends are internal thread, and the upper end lifts tubing string and is threaded with sending into, and the lower end is threaded with central tube 2; Central tube 2 two ends are external screw thread, and its lower end connects guide shoe or expansion pressure limiting valve; Central tube 2 bottoms are provided with a plurality of hydraulic pressure hole, and the fluid of central tube 2 inwalls is entered in the fluid cylinder cover; Central tube 2 is provided with 2 raised step, and upper step has T font guide-localization groove and cooperates with holder 3, bears axial force and forward twisting resistance; Central tube 2 lower step are provided with axial pass trough, and groove quantity is consistent with the T font guide-localization groove quantity of central tube 2; Holder 3 is provided with screwed hole, is threaded with central tube 2 by staple 4; Holder 3 bottoms radially are provided with T font guide and limit groove, can make expanding block 6 in axial and radially trace slip; Ring spring 5 has certain elasticity tension, can provide certain convergent force for expanding block 6; Driving awl 7 tops is a conical surface, is slidingly connected by rectangle, T shape or swallowtail trough structure between expanding block 6 and the driving awl 7, and driving awl 7 has shearing nail 8 to realize initial fixation with central tube 2; Driving awl 7 bottoms are threaded with piston 11 and fix with locking nail 9; Piston is stepped loop configuration, and its underpart surfaces externally and internally is respectively equipped with piston exterior seal ring 13, piston inner seal ring 14, realizes the hydraulic packing with central tube 2 and fluid cylinder cover 10; Between piston 11 and the central tube 2 back-moving spring 12 is installed, two ends lean respectively on step; Fluid cylinder cover 10 is connected with central tube 2 lower thread, is sealed by 15 realizations of fluid cylinder end sealing ring; The present invention is by driving the radial height that changes expanding block 6 that moves axially of awl 7, can satisfy the needs that variable cross-section expands preferably, have certain expansion contact force adaptivity, overcome the sizing expansion gear expand circuitous card, expansion force is excessive or shortcoming such as expanded radially power deficiency.
During construction, this rotary variable-diameter expansion device bottom can connect other instruments such as guide shoe or expansion pressure limiting valve, and top lifts tubing string and is connected with sending into.When this instrument is lowered into design attitude, start rotating disk, make this device with sending into the tubing string low speed rotation.Suppress on ground, highly pressurised liquid enters in the fluid cylinder cover by the hydraulic pressure hole of central tube.When hydraulic pressure reached certain value, piston overcame spring and moves upward under action of hydraulic force, cut off and sheared nail, made to drive to bore to move up, and expanding block outwards slides under conical surface effect.Tubing string rotatablely moves and the increase synergy of expanding block radial height, makes expansion tube produce uniform expanded radially.At the uniform velocity promote and send into tubing string, can realize the even expansion operation of one section tubing string.If the power that lifts in the lifting tubing string process is excessive or the phenomenon that is hampered occurs, can suitably reduce the force value of expanding liquid, expanding block squeezes the effect of power and ring spring and back-moving spring outside and shrinks down, regulates the needs that satisfy the caliber variation voluntarily.Can utilize this device that same section tubing string repeatedly expanded, improve the hydraulic pressure value one by one, can realize good Expansion sealing effect.When expanding apart from tubing string for length, sectional expands one by one and finishes.
Claims (1)
1. a rotary variable-diameter expansion device is made up of top connection (1), central tube (2), holder (3), staple (4), ring spring (5), expanding block (6), driving awl (7), shearing nail (8), backing-up screw (9), fluid cylinder cover (10), piston (11), back-moving spring (12), piston exterior seal ring (13), piston inner seal ring (14), fluid cylinder end sealing ring (15); It is characterized in that: top connection (1) two ends are internal thread, and the upper end lifts tubing string and is threaded with sending into, and the lower end is threaded with central tube (2); Central tube (2) two ends are external screw thread, and its lower end connects guide shoe or expansion pressure limiting valve; Central tube (2) bottom is provided with the hydraulic pressure hole, and the fluid of central tube (2) inwall is entered in the fluid cylinder cover; Central tube (2) top is provided with 2 raised step, and upper step has T font guide-localization groove and cooperates with holder (3), bears axial force and forward twisting resistance; Central tube (2) lower step is provided with axial pass trough, and groove quantity is consistent with the T font guide-localization groove quantity of central tube (2); Holder (3) is provided with screwed hole, is threaded with central tube (2) by staple (4); Holder (3) bottom radially is provided with T font guide and limit groove, can make expanding block (6) in axial and radially trace slip; Ring spring (5) has certain elasticity tension, can provide certain convergent force for expanding block (6); Driving awl (7) top is a conical surface, is slidingly connected by rectangle, T shape or swallowtail trough structure between expanding block (6) and the driving awl (7), drives awl (7) and realizes initial fixation with central tube (2) by shearing nail (8); Driving awl (7) bottom is threaded fixing with locking nail (9) with piston (11); Piston is stepped loop configuration, and its underpart surfaces externally and internally is respectively equipped with piston exterior seal ring (13), piston inner seal ring (14), realizes the hydraulic packing with central tube (2) and fluid cylinder cover (10); Between piston (11) and the central tube (2) back-moving spring (12) is installed, two ends lean respectively on step; Fluid cylinder cover (10) is connected with central tube (2) lower thread, realizes sealing by fluid cylinder end sealing ring (15); The present invention is by driving the radial height that changes expanding block (6) that moves axially of awl (7), can satisfy the needs that variable cross-section expands preferably, have certain expansion contact force adaptivity, overcome the sizing expansion gear expand circuitous card, expansion force is excessive or the hypodynamic problem of expanded radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910219919 CN101709632B (en) | 2009-11-17 | 2009-11-17 | Rotary reducing expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910219919 CN101709632B (en) | 2009-11-17 | 2009-11-17 | Rotary reducing expansion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709632A true CN101709632A (en) | 2010-05-19 |
| CN101709632B CN101709632B (en) | 2013-05-22 |
Family
ID=42402438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910219919 Expired - Fee Related CN101709632B (en) | 2009-11-17 | 2009-11-17 | Rotary reducing expansion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709632B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088587A (en) * | 2013-04-01 | 2014-10-08 | 中国石油化工股份有限公司 | Variable-diameter casing pipe for anti-collapse in drilling process |
| CN106461128A (en) * | 2014-06-06 | 2017-02-22 | V·拉比 | High-pressure rotary seal-plug assembly with expandable continuous ring |
| CN106703732A (en) * | 2017-02-16 | 2017-05-24 | 中国石油化工股份有限公司 | Device for applying force on expansion pipe in a combined mode and operating method of device |
| CN107060700A (en) * | 2017-06-01 | 2017-08-18 | 中国石油集团渤海钻探工程有限公司 | A kind of anti-swollen cone of card-type reducing expandable screen |
| CN109519145A (en) * | 2018-11-15 | 2019-03-26 | 成都百胜野牛科技有限公司 | A kind of fluid separation apparatus |
| CN109681145A (en) * | 2019-01-16 | 2019-04-26 | 中国石油天然气股份有限公司 | Oil pipe suspension equipment |
| CN110029955A (en) * | 2019-04-28 | 2019-07-19 | 河北工业大学 | Reducing type expansion-head and expansion tube swelling operation expansion device |
| CN110067513A (en) * | 2018-01-23 | 2019-07-30 | 中石化石油工程技术服务有限公司 | A kind of whirling vibration casing guidance tripping in tool |
| CN112832708A (en) * | 2020-12-31 | 2021-05-25 | 湘潭大学 | Hook type packer for annular pipeline |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2186828Y (en) * | 1994-01-27 | 1995-01-04 | 沈阳工业大学 | Double-cone thermal expansion spacer |
| CN2439541Y (en) * | 2000-07-28 | 2001-07-18 | 孙波 | Thermal packer |
| CN2755273Y (en) * | 2004-12-03 | 2006-02-01 | 盘锦华源石油机械厂 | Super-expand packer |
-
2009
- 2009-11-17 CN CN 200910219919 patent/CN101709632B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088587B (en) * | 2013-04-01 | 2016-06-22 | 中国石油化工股份有限公司 | For reducing sleeve pipe anti-collapse in drilling process |
| CN104088587A (en) * | 2013-04-01 | 2014-10-08 | 中国石油化工股份有限公司 | Variable-diameter casing pipe for anti-collapse in drilling process |
| CN106461128A (en) * | 2014-06-06 | 2017-02-22 | V·拉比 | High-pressure rotary seal-plug assembly with expandable continuous ring |
| CN106703732A (en) * | 2017-02-16 | 2017-05-24 | 中国石油化工股份有限公司 | Device for applying force on expansion pipe in a combined mode and operating method of device |
| CN106703732B (en) * | 2017-02-16 | 2023-12-01 | 中国石油化工股份有限公司 | Composite force-application expansion pipe device and operation method thereof |
| CN107060700A (en) * | 2017-06-01 | 2017-08-18 | 中国石油集团渤海钻探工程有限公司 | A kind of anti-swollen cone of card-type reducing expandable screen |
| CN110067513A (en) * | 2018-01-23 | 2019-07-30 | 中石化石油工程技术服务有限公司 | A kind of whirling vibration casing guidance tripping in tool |
| CN109519145B (en) * | 2018-11-15 | 2020-10-30 | 成都百胜野牛科技有限公司 | Fluid separation device |
| CN109519145A (en) * | 2018-11-15 | 2019-03-26 | 成都百胜野牛科技有限公司 | A kind of fluid separation apparatus |
| CN109681145A (en) * | 2019-01-16 | 2019-04-26 | 中国石油天然气股份有限公司 | Oil pipe suspension equipment |
| CN109681145B (en) * | 2019-01-16 | 2023-09-26 | 中国石油天然气股份有限公司 | Oil pipe suspension device |
| CN110029955A (en) * | 2019-04-28 | 2019-07-19 | 河北工业大学 | Reducing type expansion-head and expansion tube swelling operation expansion device |
| CN112832708A (en) * | 2020-12-31 | 2021-05-25 | 湘潭大学 | Hook type packer for annular pipeline |
| CN112832708B (en) * | 2020-12-31 | 2023-08-29 | 湘潭大学 | Hook type packer for annular pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101709632B (en) | 2013-05-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20130522 Termination date: 20131117 |