CN102305053A - Two-stage hydraulic reducing expansion tool - Google Patents
Two-stage hydraulic reducing expansion tool Download PDFInfo
- Publication number
- CN102305053A CN102305053A CN201110279170A CN201110279170A CN102305053A CN 102305053 A CN102305053 A CN 102305053A CN 201110279170 A CN201110279170 A CN 201110279170A CN 201110279170 A CN201110279170 A CN 201110279170A CN 102305053 A CN102305053 A CN 102305053A
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- CN
- China
- Prior art keywords
- awl
- expansion
- pipe nipple
- combination
- reducing
- 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
Links
- 210000002445 nipple Anatomy 0.000 claims description 47
- 238000012856 packing Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Abstract
The invention relates to an underground tool for petroleum drilling, in particular to a two-stage hydraulic variable-diameter expansion tool. The sealer, the upper open hole packer, the expansion pipe, the lower open hole packer, the 8-shaped corrugated pipe, the expansion short section and the drillable guide shoe of the tool are sequentially connected by screw threads from top to bottom to form an expansion outer pipe; the lower end of the centralizing combination is in threaded connection with the inner sealing combination, the short section, the central tube and the anti-retreat short section are in threaded connection in sequence, the resistance-increasing bearing short section combination is connected with the short section through a shear pin, the expansion cone propulsion anti-retreat sleeve is installed at the lower end of the central tube in a matched mode through a snap ring and the anti-retreat short section, the cone seat and the upper reducing expansion cone are sleeved on an expansion cone central shaft in a matched mode, and the lower reducing expansion cone is sleeved on the expansion. The invention is used for expanding the expandable pipe to seal unstable strata, the inner drift diameter is consistent with the size of the original borehole after sealing, a safe and stable borehole channel is formed, and the drill bit with the same size is used for drilling, thereby realizing the purpose of completing the well by the casing pipe with the same size.
Description
Technical field:
The present invention relates to a kind of oil drilling downhole tool, particularly a kind of 2-level hydraulic reducing bloat tool.
Background technology:
In the on-the-spot drilling engineering along with to the deep understanding of mechanism such as oil gas generation, migration and the continuous progress of drilling technology; The deep-well reservoir development is more and more; Traditional well bore exists one to drive a well that eye is big, the cycle long and produce the very little practical problem of section well after the finishing drilling always; Not only drilling cost is high, and is unfavorable for producing and the later stage operation; If the stratum is unstable, borehole collapse, undergauge like saline bed and some loose sand oil reservoirs, just are difficult to continue to creep into; In order to keep the maximization of completion size to greatest extent; Domestic and international existing means are to adopt expansion tube to come sealing as intermediate casing; But follow-up creeping into needs to change small bits; Final borehole diameter will diminish; So just might bore less than target zone; Even be drilled into target zone, but, do not satisfy the requirement of exploitation and subsequent job because well is too little yet.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of 2-level hydraulic reducing bloat tool; This instrument expandable tubular packing caving ground that is used for expanding; Latus rectum is consistent with former borehole size in after the packing; Form the well passage of safety and stability; Drill bit with same size creeps into again, thereby realizes that the sleeve pipe of same size carries out the purpose of completion.Overcome prior art and adopted expansion tube to come sealing as intermediate casing, follow-up creeping into needs to change small bits and causes borehole diameter to diminish, and do not satisfy the deficiency of the requirement of exploitation and subsequent job.
The technical scheme that the present invention taked is: a kind of 2-level hydraulic reducing bloat tool, comprise can bore guide shoe, can move back buckle an awl seat pipe nipple, expansion pipe nipple, down reducing expand awl, go up reducing expand awl, central tube, increase the combination of resistance load-bearing pipe nipple, down open hole packer, packing element, go up open hole packer and sealer; Sealer, go up open hole packer, expansion tube, down open hole packer, 8 font bellowss, expansion pipe nipple, can bore guide shoe and be threaded successively from top to bottom, form the expansion outer tube; Be equipped with in the inside of expansion outer tube and set upright combination; Set upright combination upper end and send into tubing string and be connected; The lower end is threaded with interior seal combination; Interior seal combination; Pipe nipple; Central tube; The anti-back pipe nipple is threaded successively; Increasing the combination of resistance load-bearing pipe nipple is connected with pipe nipple through shear pin; The awl that expands advances anti-drill drift to match with the anti-back pipe nipple through snap ring and is installed in the central tube lower end; Expand the awl central axis up and down respectively with the anti-back pipe nipple; Can move back button awl seat pipe nipple is threaded; Awl seat and the last reducing awl that expands matches and being sleeved on the awl central axis that expands, following reducing expand awl with can move back a button awl seat pipe nipple and match and being sleeved on bloated the awl on the central axis.
The invention has the beneficial effects as follows: the present invention is expanded owing to having adopted double expansion to make up, thereby has the operating pressure when having reduced the expansion operation, forms the effect of bigger run through casing size; Because having adopted reducing to expand bores; Thereby reduced the external diameter of expansion tube lower end expansion starter; Thereby guarantee that expansion tube can be lowered into the lost-circulation zone position smoothly, the expansion tube internal diameter after the bloated awl of reducing can be guaranteed to expand in addition is close with former borehole size, thereby the well of hole diameters such as acquisition; The effect that awl advances anti-drill drift to match with the anti-back pipe nipple through snap ring owing to the expand awl undergauge that can prevent to expand can move back button awl seat pipe nipple and in the card that expands, carry out release and propose the expansion tubing string through the rotation tubing string awl that will expand, and reduces the possibility that expands and block; Because in the middle of the expansion tube pipe nipple, be connected with 8 font bellowss through special thread, 8 font bellowss restore expansion under the effect of pressure, reducing self-locking space in the pipe is provided for reducing expands to bore.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is a structural representation of the present invention.
The specific embodiment:
Shown in accompanying drawing; A kind of 2-level hydraulic reducing bloat tool, by can bore guide shoe 1, sealing ring 2, can move back buckle an awl seat pipe nipple 3, expansion pipe nipple 4, down reducing expand awl 5, go up reducing expand awl 6, the awl central axis 7 that expands, awl seat 8, anti-back pipe nipple 9, snap ring 10, the awl that expands advance anti-drill drift 11,8 font bellowss 12, central tube 13, increase resistance load-bearing pipe nipple combination 14, down open hole packer 15, packing element 16, shear pin 17, pipe nipple 18, interior seal combination 19, expansion tube 20, set upright combination 21, go up open hole packer 22 and sealer 24 is formed; Sealer 24, go up open hole packer 22, expansion tube 20, down open hole packer 15,8 font bellowss 12, expansion pipe nipple 4, can bore guide shoe 1 and be threaded successively from top to bottom, form the expansion outer tube; Be equipped with in the inside of expansion outer tube and set upright combination 21; Set upright combination 21 upper ends and send into tubing string 23 and be connected; The lower end is threaded with interior seal combination 19; Interior seal combination 19; Pipe nipple 18; Central tube 13; Anti-back pipe nipple 9 is threaded successively; Increasing resistance load-bearing pipe nipple combination 14 is connected with pipe nipple 18 through shear pin 17; The awl that expands advances anti-drill drift 11 to match with anti-back pipe nipple 9 through snap ring 10 and is installed in central tube 13 lower ends; Expand awl central axis 7 up and down respectively with anti-back pipe nipple 9; Can move back button awl seat pipe nipple 3 is threaded; Awl seat 8 and the last reducing awl 6 that expands matches and being sleeved on the awl central axis 7 that expands, following reducing expand awl 5 with can move back a button awl seat pipe nipple 3 and match and being sleeved on bloated the awl on the central axis 7.
After boring the pernicious lost-circulation zone of chance; With the reaming hole instrument lost-circulation zone and some up and down rice thereof are carried out reaming hole earlier; Guarantee that the present invention can be lowered into leak position smoothly; Through sending into tubing string 23 the present invention is lowered into leak stopping position in the well; In oil pipe, inject water under high pressure; When pressure reached 2-3Mpa, 8 font bellowss 12 restored expansion under the effect of pressure.Continue to suppress 5Mpa, form pressure reduction up and down shear pin 17 is cut off increasing resistance load-bearing pipe nipple combination 14, increase resistance load-bearing pipe nipple combination 14 this moment and under the effect of pressure reduction, can move axially along central tube 13.At this moment can move back button awl seat pipe nipple 3 and can bore the bloated awl 5 of reducing under the high-pressure water chamber promotion of setting up between the guide shoe 1; The bloated awl 6 of last reducing moves on central tube 13 is in the expansion outer tube; Following reducing expands and bores 5; Last reducing expand awl 68 font bellowss, 12 places with increase resistance load-bearing pipe nipple combination 14 and meet and be obstructed; The awl that expands advances anti-drill drift 11 to act on down the bloated awl 5 of reducing; Last reducing expands to bore and makes it that self-locking takes place on 6; Wherein the anti-back pipe nipple 9 and the awl that expands advance and prevent preventing the release of the bloated awl of reducing through snap ring 10 between the drill drift 11, and last reducing expands to bore in the self-locking of 8 font bellowss, 12 recoveries place completion reducing and so far is created as the double expansion structure.Continuing to suppress the whole expansion tubing string in back promotes to send into tubing string and in axial direction moves upward; Increase the combination 14 of resistance load-bearing pipe nipple and expand as one-level and begin the expansion outer tube is carried out expansion, following reducing expand awl 5, go up the reducing awl 6 that expands and act on the expansion outer tube for compound expansion.At this moment force value slightly descends but keeps stable, shows that when pressure descends suddenly expansion work completion upper lifting pipe post proposes the expansion tubing string and accomplishes leak stopping work.The material that can bore guide shoe 1 is for can bore material, and the expansion tubing string proposes to be lowered to drill bit behind the well head, bores to fall can bore guide shoe 1, can continue to creep into.
Be with being appreciated that; More than about specific descriptions of the present invention; Only be used to the present invention is described and be not to be subject to the described technical scheme of the embodiment of the invention; Those of ordinary skill in the art is to be understood that; Still can make amendment or be equal to replacement the present invention, to reach identical technique effect; As long as satisfy the use needs, all within protection scope of the present invention.
Claims (1)
1. 2-level hydraulic reducing bloat tool, comprise can bore guide shoe (1), can move back buckle an awl seat pipe nipple (3), expansion pipe nipple (4), down reducing expand awl (5), go up reducing expand awl (6), central tube (13), increase resistance load-bearing pipe nipple combination (14), down open hole packer (15), packing element (16), go up open hole packer (22) and sealer (24); It is characterized in that: sealer (24), go up open hole packer (22), expansion tube (20), down open hole packer (15), 8 font bellowss (12), expansion pipe nipple (4), can bore guide shoe (1) and be threaded successively from top to bottom, form the expansion outer tube; Be equipped with in the inside of expansion outer tube and set upright combination (21); Set upright combination (21) upper end and send into tubing string (23) and be connected; The lower end is threaded with interior seal combination (19); Interior seal combination (19); Pipe nipple (18); Central tube (13); Anti-back pipe nipple (9) is threaded successively; Increasing resistance load-bearing pipe nipple combination (14) is connected with pipe nipple (18) through shear pin (17); The awl that expands advances anti-drill drift (11) to match with anti-back pipe nipple (9) through snap ring (10) and is installed in central tube (13) lower end; Expand awl central axis (7) up and down respectively with anti-back pipe nipple (9); Can move back button awl seat pipe nipple (3) is threaded; Awl seat (8) and the last reducing awl (6) that expands matches and being sleeved on the awl central axis (7) that expands, following reducing expand awl (5) with can move back a button awl seat pipe nipple (3) and match and being sleeved on bloated the awl on the central axis (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279170 CN102305053B (en) | 2011-08-28 | 2011-08-28 | Two-stage hydraulic reducing expansion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279170 CN102305053B (en) | 2011-08-28 | 2011-08-28 | Two-stage hydraulic reducing expansion tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305053A true CN102305053A (en) | 2012-01-04 |
| CN102305053B CN102305053B (en) | 2013-09-04 |
Family
ID=45378951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110279170 Expired - Fee Related CN102305053B (en) | 2011-08-28 | 2011-08-28 | Two-stage hydraulic reducing expansion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102305053B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484695A (en) * | 2015-12-30 | 2016-04-13 | 中国石油天然气集团公司 | Mechanical hydraulic double-acting expansion device suitable for expansion tube drilling |
| 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 |
| CN107524428A (en) * | 2017-08-11 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of swollen cone of hydraulic thrust of coiled tubing conveying expandable screen |
| CN108119069A (en) * | 2017-12-21 | 2018-06-05 | 中国石油天然气集团公司 | The device transferred for tubing string in expansion tube bore hole system |
| CN110566138A (en) * | 2019-10-21 | 2019-12-13 | 潍坊市宇宏石油机械有限公司 | Self-adaptive casing centralizer and centralizing method |
| CN115126438A (en) * | 2021-03-25 | 2022-09-30 | 中国石油天然气集团有限公司 | Electrodeless variable-diameter leakage blocking device and method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278277A (en) * | 1979-07-26 | 1981-07-14 | Pieter Krijgsman | Structure for compensating for different thermal expansions of inner and outer concentrically mounted pipes |
| US6182755B1 (en) * | 1998-07-01 | 2001-02-06 | Sandia Corporation | Bellow seal and anchor |
| US20020092654A1 (en) * | 2000-12-21 | 2002-07-18 | Coronado Martin P. | Expandable packer isolation system |
| US20040045720A1 (en) * | 2002-09-10 | 2004-03-11 | Weatherford/Lamb, Inc. | Tubing expansion tool |
| CN1807830A (en) * | 2006-02-06 | 2006-07-26 | 李孝勇 | Hydraulic diameter-variable casing expansion method and apparatus therefor |
| CN201141289Y (en) * | 2008-01-10 | 2008-10-29 | 西南石油大学 | Novel radius-variable expansion tool |
| CN201184155Y (en) * | 2008-04-22 | 2009-01-21 | 西南石油大学 | Expansion block of variable radial expansion tool |
| CN201627554U (en) * | 2010-03-02 | 2010-11-10 | 中国石油大学(北京) | Device for installing inflatable metal tube in unstable wellbore |
-
2011
- 2011-08-28 CN CN 201110279170 patent/CN102305053B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278277A (en) * | 1979-07-26 | 1981-07-14 | Pieter Krijgsman | Structure for compensating for different thermal expansions of inner and outer concentrically mounted pipes |
| US6182755B1 (en) * | 1998-07-01 | 2001-02-06 | Sandia Corporation | Bellow seal and anchor |
| US20020092654A1 (en) * | 2000-12-21 | 2002-07-18 | Coronado Martin P. | Expandable packer isolation system |
| US20040045720A1 (en) * | 2002-09-10 | 2004-03-11 | Weatherford/Lamb, Inc. | Tubing expansion tool |
| CN1807830A (en) * | 2006-02-06 | 2006-07-26 | 李孝勇 | Hydraulic diameter-variable casing expansion method and apparatus therefor |
| CN201141289Y (en) * | 2008-01-10 | 2008-10-29 | 西南石油大学 | Novel radius-variable expansion tool |
| CN201184155Y (en) * | 2008-04-22 | 2009-01-21 | 西南石油大学 | Expansion block of variable radial expansion tool |
| CN201627554U (en) * | 2010-03-02 | 2010-11-10 | 中国石油大学(北京) | Device for installing inflatable metal tube in unstable wellbore |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105484695A (en) * | 2015-12-30 | 2016-04-13 | 中国石油天然气集团公司 | Mechanical hydraulic double-acting expansion device suitable for expansion tube drilling |
| WO2017114149A1 (en) * | 2015-12-30 | 2017-07-06 | 中国石油天然气集团公司 | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| CN105484695B (en) * | 2015-12-30 | 2018-10-16 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion device suitable for expansion tube drilling well |
| US10641067B2 (en) | 2015-12-30 | 2020-05-05 | China National Petroleum Corporation | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| 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 |
| CN107524428A (en) * | 2017-08-11 | 2017-12-29 | 中国石油集团渤海钻探工程有限公司 | A kind of swollen cone of hydraulic thrust of coiled tubing conveying expandable screen |
| CN108119069A (en) * | 2017-12-21 | 2018-06-05 | 中国石油天然气集团公司 | The device transferred for tubing string in expansion tube bore hole system |
| CN108119069B (en) * | 2017-12-21 | 2023-12-26 | 中国石油天然气集团有限公司 | Device for lowering tubular column in open hole system of expansion pipe |
| CN110566138A (en) * | 2019-10-21 | 2019-12-13 | 潍坊市宇宏石油机械有限公司 | Self-adaptive casing centralizer and centralizing method |
| CN115126438A (en) * | 2021-03-25 | 2022-09-30 | 中国石油天然气集团有限公司 | Electrodeless variable-diameter leakage blocking device and method thereof |
| CN115126438B (en) * | 2021-03-25 | 2023-10-20 | 中国石油天然气集团有限公司 | Stepless reducing plugging device and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102305053B (en) | 2013-09-04 |
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Granted publication date: 20130904 Termination date: 20140828 |
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