CN105649546A - Downhole tool realizing stable impact effect through pressure pulses - Google Patents
Downhole tool realizing stable impact effect through pressure pulses Download PDFInfo
- Publication number
- CN105649546A CN105649546A CN201610006447.9A CN201610006447A CN105649546A CN 105649546 A CN105649546 A CN 105649546A CN 201610006447 A CN201610006447 A CN 201610006447A CN 105649546 A CN105649546 A CN 105649546A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- inner barrel
- piston
- anvil block
- downhole tool
- 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
- 230000000694 effects Effects 0.000 title claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000035515 penetration Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a downhole tool realizing the stable impact effect through pressure pulses. The downhole tool is suitable for the field of petroleum drilling. According to the technical scheme, an upper connector, an upper shell, a lower shell and an anvil block are sequentially connected through screw threads; an annular check ring is located between the upper connector and an inner cylinder and is axially located through the inner cylinder; the lower end of a belleville spring is adjacent to a hammer base and is axially located; a piston and the lower end of a splitting sleeve are connected through threads; the upper end of a folded spring is connected to a connection sleeve, and the lower end of the folded spring is adjacent to a locating sleeve and is axially located; a half-dividing ring is located in a groove of the anvil block, and an octagonal sleeve is fixed to the lower shell through threads and is clamped between the lower shell and the anvil block. According to the downhole tool, frictional resistance between lower drills of existing horizontal wells and extended reach wells and well walls can be effectively lowered, the backing pressure problem in the well drilling process can be solved, the well drilling efficiency can be improved, and downhole accidents such as jamming can be avoided.
Description
Technical field
The present invention relates to a kind of downhole tool realizing stable impact effect for the pressure pulse in the fields such as oil drilling, mining, geological drilling.
Background technology
During drillng operation, drilling tool should carry out vertical direction operation, in addition it is also necessary to level or other direction operations. When drilling tool is in vertical direction operation, drill bit and upper drilling string are positioned at same axis, and drill bit is connected to drill string lower end and is drilled down into, and drill bit is able to receive that enough the pressure of the drill carry out drillng operation; And when drilling tool needs other direction operation of horizontal direction operation or deviation vertical direction, upper drilling string bottom needs to bend corresponding angle. Due to reasons such as horizontal segment length and bottom hole flushing weak effects, cause frictional resistance suffered by drill string bigger, the pressure of the drill making well head cannot be effectively transferred to drill bit, the drilling speed of drill bit there is very big impact, also the directional drilling in later stage cannot just be realized, the down-hole accidents such as bit freezing can be caused time serious, bring great hidden danger to the safe construction of horizontal well, extended reach well and shallow seated groundwater horizontal well etc., increase the risk of underground work.
Most of axial vibration instruments need to produce periodic pressure pulse, such as mud motor and turbodrill by external impetus. This kind of downhole tool can increase the expense of underground work and the complexity of downhole operations, accordingly, it would be desirable to vibrate speed enhancing apparatus by one, axially generation in drill string bottom is vibrated, backing pressure effect can be alleviated, effectively transmit the pressure of the drill, to reach to improve effect and the purpose of drill bit rate of penetration.
Summary of the invention
It is an object of the invention to: for overcoming existing level well, that extended reach well creeps into frictional resistance is big, well head the pressure of the drill cannot effectively pass to the problem that the not enough and existing axial vibration instrument result of use of drill bit is undesirable, designs a kind of pressure pulse and realizes the downhole tool of stable impact effect.
For achieving the above object, the technical solution used in the present invention is: described downhole tool is made up of top connection, upper shell, inner barrel, disk spring, hammer seat, lower house, folded spring, branch sleeve, half point ring, from all directions set, anvil block, annular retaining ring, tapping sleeve, piston, base, packing ring, square RunddichtringO, abutment sleeve, valve, ring washer, O RunddichtringO, it is characterised in that top connection, upper shell, lower house and anvil block pass sequentially through screw thread and be connected;Annular retaining ring is between top connection and inner barrel, and is axially positioned by inner barrel, is provided with through hole, is axially arranged with equally distributed 4 through holes in the middle of annular retaining ring; Being provided with through hole in the middle of tapping sleeve, upper end is just by annular retaining ring intermediate throughholes; Inner barrel is between tapping sleeve and upper shell, and two ends are circumferentially with equally distributed 4 and cross opening; Disk spring is positioned at the periphery of tapping sleeve, the hammer seat of lower section axially position, and hammer seat is axially positioned by inner barrel; Adopt between piston with tapping sleeve and threaded, have blind hole in the middle of piston, and be provided around 4 equally distributed shunting through holes in blind hole; Adopting between base with piston and threaded, base is axially arranged with equally distributed 4 and crosses opening; Valve upper end is circumferentially with equally distributed 4 and crosses opening; Abutment sleeve and folded spring, between lower house and valve, are axially positioned by branch sleeve upper end below folded spring, and branch sleeve lower end is connected with folded spring; Half point ring is located in the groove of anvil block, and set is threadedly secured on lower house from all directions, and is stuck between lower house and anvil block.
Compared with the prior art, it provides the benefit that the present invention: (1) has pressure pulse formula downhole tool can provide a stable periodical high-frequency axial impact force; (2) dither effectively overcomes the frictional resistance of lower drilling tool, realize effective transmission of well head the pressure of the drill, improve rate of penetration, simultaneously as the vibration of instrument itself, drilling tool is prevented to be attached to for a long time on the lower borehole wall, thus avoiding the generation of the down-hole accidents such as viscous card.
Accompanying drawing explanation
Fig. 1 is the structural representation that pressure pulse of the present invention realizes the downhole tool of stable impact effect.
In figure: 1-top connection, 2-upper shell, 3-inner barrel, 4-disk spring, 5-hammer seat, 6-lower house, 7-folded spring, 8-branch sleeve, 9-half point ring, 10-set, 11-anvil block, 12-annular retaining ring, 13-tapping sleeve, 14-piston, 15-base, 16-packing ring, 17-square RunddichtringO, 18-abutment sleeve, 19-valve, 20-ring washer, 21-O RunddichtringO from all directions into shape.
Fig. 2 is the sectional view in A-A face in Fig. 1 of the present invention.
Fig. 3 is the sectional view in B-B face in Fig. 1 of the present invention.
Fig. 4 is the sectional view in C-C face in Fig. 1 of the present invention.
Fig. 5 is the sectional view in D-D face in Fig. 1 of the present invention.
Fig. 6 is the sectional view in E-E face in Fig. 1 of the present invention.
Detailed description of the invention
Shown in reference to the accompanying drawings, described pressure pulse realizes the downhole tool of stable impact effect, it is made up of top connection, upper shell, inner barrel, disk spring, hammer seat, lower house, folded spring, branch sleeve, half point ring, from all directions set, anvil block, annular retaining ring, tapping sleeve, piston, base, packing ring, square RunddichtringO, abutment sleeve, valve, ring washer, O RunddichtringO, it is characterised in that top connection 1, upper shell 2, lower house 6 pass sequentially through screw thread with anvil block 11 and be connected; Annular retaining ring is between top connection and inner barrel, and is axially positioned by inner barrel, is provided with through hole, is axially arranged with equally distributed 4 through holes, is provided with through hole in the middle of tapping sleeve in the middle of annular retaining ring, and upper end is just by annular retaining ring intermediate throughholes; Inner barrel 3 is between tapping sleeve 13 and upper shell 2, and two ends are circumferentially with equally distributed 4 and cross opening; Disk spring 4 is positioned at the periphery of tapping sleeve 13, the hammer seat 5 of lower section axially position, and hammer seat 5 is positioned at inner barrel 3, and is axially positioned by inner barrel 3;Adopting between piston 14 with tapping sleeve 13 and threaded, have blind hole, and be provided around 4 equally distributed shunting through holes in blind hole, adopt and threaded between base 15 with piston 14 in the middle of piston 14, base 15 is axially arranged with equally distributed 4 and crosses opening; Valve 19 upper end is circumferentially with equally distributed 4 and crosses opening; Abutment sleeve 18 and folded spring 7, between lower house 6 and valve 19, are axially positioned by branch sleeve 8 upper end below folded spring 7, and branch sleeve 8 lower end is connected with folded spring 7; Half point ring 9 is stuck in the groove of anvil block 11, and set 10 is threadedly secured on lower house 6 from all directions, and is stuck between lower house 6 and anvil block 11.
During work, isocon 13 upper end contacts with annular retaining ring 12, annular retaining ring 12 4 flowing holes of circumference are closed, middle flowing hole is opened, mud enters piston 14 by tapping sleeve 13 interstitial hole, and from piston 14 lower end peripheral through holes out, the ring gap formed from piston 14 and hammer seat 5 passes through, and sequentially passes through flowing hole and valve 19 intermediate throughholes of base 15. Along with increasing of mud, mud pressure increases, piston 14 is moved downwardly together until contact formation annular seal space with inner barrel 3 with isocon 13, base 15 and valve 19 move downward with the compression of disk spring 4 and folded spring 7, isocon 13 separates with annular retaining ring 12, annular retaining ring 12 4 flowing holes of circumference are opened, middle flowing hole is closed, the through hole that inner barrel 3 flow channels is portalled with valve 19 connects, mud enters inner barrel 3 flow channels by annular retaining ring 12 4 flowing holes of circumference along tapping sleeve 13, flows out from valve 19 intermediate throughholes. After each channel connection, mud pressure reduces, disk spring 4 and folded spring 7 slowly recover the original length, piston 14 separates with inner barrel 3, isocon 13 upper end contacts again with annular retaining ring 12, and the outlet of inner barrel 3 flow channels no longer connects with valve 19 flowing hole, and mud repeats again above-mentioned first process, so repeatedly, pressure pulse formula downhole tool produces a stable periodical high-frequency axial impact force.
Claims (2)
1. pressure pulse realizes the downhole tool of stable impact effect, it is made up of top connection, upper shell, inner barrel, disk spring, hammer seat, lower house, folded spring, branch sleeve, half point ring, from all directions set, anvil block, tightening straight pin, tapping sleeve, piston, base, packing ring, square RunddichtringO, abutment sleeve, valve, ring washer, O RunddichtringO, it is characterised in that top connection (1), upper shell (2), lower house (6) pass sequentially through screw thread with anvil block (11) and be connected; Annular retaining ring (12) is positioned between top connection (1) and inner barrel (3), and axially positioned by inner barrel (3), it is provided with through hole in the middle of annular retaining ring (12), it is axially arranged with equally distributed 4 through holes, being provided with through hole in the middle of tapping sleeve (13), upper end is just by annular retaining ring (12) intermediate throughholes; Inner barrel (3) is positioned between tapping sleeve (13) and upper shell (2), and is circumferentially with equally distributed 4 flow channels; Disk spring (4) is positioned at the periphery of tapping sleeve (13), axially positioned by the hammer seat (5) of lower section, hammer seat (5) is positioned at inner barrel (3), and is axially positioned by inner barrel (3); Adopt between piston (14) with tapping sleeve (13) and threaded, have blind hole in the middle of piston (14), and be provided around 4 equally distributed shunting through holes in blind hole; Adopting between base (15) with piston (14) and threaded, base (15) is axially arranged with equally distributed 4 and crosses opening;Valve (19) upper end is circumferentially with equally distributed 4 and crosses opening; Abutment sleeve (18) and folded spring (7) are positioned between lower house (6) and valve (19), folded spring (7) lower section is axially positioned by branch sleeve (8) upper end, and branch sleeve (8) lower end is connected with folded spring (7); Half point ring (9) is located in the groove of anvil block (11), and set (10) is threadedly secured on lower house (6) from all directions, and is stuck between lower house (6) and anvil block (11).
2. pressure pulse according to claim 1 realizes the downhole tool of stable impact effect, it is characterised in that adopt H7/n6 matched in clearance between tapping sleeve (13) and inner barrel (3); H7/n6 matched in clearance is adopted between piston (14) and inner barrel (3), branch sleeve (8), abutment sleeve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006447.9A CN105649546B (en) | 2016-01-07 | 2016-01-07 | Pressure pulse realizes the downhole tool of stable impact effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610006447.9A CN105649546B (en) | 2016-01-07 | 2016-01-07 | Pressure pulse realizes the downhole tool of stable impact effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649546A true CN105649546A (en) | 2016-06-08 |
| CN105649546B CN105649546B (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610006447.9A Active CN105649546B (en) | 2016-01-07 | 2016-01-07 | Pressure pulse realizes the downhole tool of stable impact effect |
Country Status (1)
| Country | Link |
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| CN (1) | CN105649546B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403866A (en) * | 2018-11-02 | 2019-03-01 | 大庆东油研创科技研发有限公司 | Section rate formula high frequency waterpower impulse hunting drag reduction accelerator |
| CN110273646A (en) * | 2019-07-11 | 2019-09-24 | 成都阿斯贝瑞科技有限公司 | A kind of novel drop mill friction reducer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693945Y (en) * | 2003-12-24 | 2005-04-20 | 大港油田集团有限责任公司 | Hydraulic pulse vibrator |
| CN2758437Y (en) * | 2004-12-21 | 2006-02-15 | 中国石化集团胜利石油管理局钻井工艺研究院 | Well bottom local pulse negative pressure tool |
| CN103154418A (en) * | 2010-08-26 | 2013-06-12 | 贝克休斯公司 | Remotely-controlled downhole device and method for using same |
| CN103195386A (en) * | 2013-04-11 | 2013-07-10 | 河南省泓森石油技术开发有限公司 | Downhole double-wave low-frequency high-power hydraulic vibrator |
| CN204200079U (en) * | 2014-11-06 | 2015-03-11 | 西南石油大学 | A kind of axial vibration impactor |
| WO2015065755A1 (en) * | 2013-10-31 | 2015-05-07 | Schlumberger Canada Limited | Vibration tool |
| WO2015157318A1 (en) * | 2014-04-07 | 2015-10-15 | Thru Tubing Solutions, Inc. | Downhole vibration enhancing apparatus and method of using and tuning the same |
-
2016
- 2016-01-07 CN CN201610006447.9A patent/CN105649546B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693945Y (en) * | 2003-12-24 | 2005-04-20 | 大港油田集团有限责任公司 | Hydraulic pulse vibrator |
| CN2758437Y (en) * | 2004-12-21 | 2006-02-15 | 中国石化集团胜利石油管理局钻井工艺研究院 | Well bottom local pulse negative pressure tool |
| CN103154418A (en) * | 2010-08-26 | 2013-06-12 | 贝克休斯公司 | Remotely-controlled downhole device and method for using same |
| CN103195386A (en) * | 2013-04-11 | 2013-07-10 | 河南省泓森石油技术开发有限公司 | Downhole double-wave low-frequency high-power hydraulic vibrator |
| WO2015065755A1 (en) * | 2013-10-31 | 2015-05-07 | Schlumberger Canada Limited | Vibration tool |
| WO2015157318A1 (en) * | 2014-04-07 | 2015-10-15 | Thru Tubing Solutions, Inc. | Downhole vibration enhancing apparatus and method of using and tuning the same |
| CN204200079U (en) * | 2014-11-06 | 2015-03-11 | 西南石油大学 | A kind of axial vibration impactor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403866A (en) * | 2018-11-02 | 2019-03-01 | 大庆东油研创科技研发有限公司 | Section rate formula high frequency waterpower impulse hunting drag reduction accelerator |
| CN109403866B (en) * | 2018-11-02 | 2024-01-02 | 东油研创(深圳)科技有限公司 | High-frequency hydraulic pulse oscillation drag-reducing accelerator with high rate |
| CN110273646A (en) * | 2019-07-11 | 2019-09-24 | 成都阿斯贝瑞科技有限公司 | A kind of novel drop mill friction reducer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105649546B (en) | 2018-04-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: 400071 Guojiatuo Factory Office, Jiangbei District, Chongqing (6th floor, Chongqing Wangjiang Industrial Co., Ltd.) Patentee after: Chongqing Wangjiang Xinqi Machinery Co., Ltd. Address before: 610500 Xindu Road, Xindu District, Chengdu, Sichuan Province, No. 8 Patentee before: Southwest Petroleum University |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400071 Guojiatuo Factory Office, Jiangbei District, Chongqing (6th floor, Chongqing Wangjiang Industrial Co., Ltd.) Patentee after: Chongqing Xinqi Petroleum Machinery Equipment Co.,Ltd. Address before: 400071 Guojiatuo Factory Office, Jiangbei District, Chongqing (6th floor, Chongqing Wangjiang Industrial Co., Ltd.) Patentee before: CHONGQING WANGJIANG XINQI MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |