CN103696686A - Jet-type explosive pressure pulse anti-drag drilling tool - Google Patents
Jet-type explosive pressure pulse anti-drag drilling tool Download PDFInfo
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- CN103696686A CN103696686A CN201310664890.1A CN201310664890A CN103696686A CN 103696686 A CN103696686 A CN 103696686A CN 201310664890 A CN201310664890 A CN 201310664890A CN 103696686 A CN103696686 A CN 103696686A
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Abstract
The invention relates to a jet-type explosive pressure pulse anti-drag drilling tool which is formed by the following structure that a joint is connected with an outer cylinder by a screw thread; the outer cylinder is connected with a lower joint by a screw thread; an upper gland, a fluidic element, a cylinder body, a piston, a cylinder cover, a spacer bush, a punch hammer and a throttling disk are sequentially arranged inside the outer cylinder from top to bottom; the lower surface of the spacer bush is in contact with the end face of the throttling disk; the punch hammer is in contact with the end face of the throttling disk; the lower surface of the throttling disk is in contact with the end face of the lower joint. The center of the throttling disk is provided with a throttling main hole; and the periphery of the throttling main hole is radially provided with more than two throttling small holes at an equal angle. An explosive pressure pulse and impact vibration can be overlaid with a resonance effect on the basis of sliding friction between a drill stem and a well wall; friction resistance between the drilling tool and the well wall is effectively reduced; a drilling pressure is efficiently transferred to the drilling tool below; the mechanical drilling speed is improved; the underground accidents of bit bouncing, jamming of the drilling tool and the like are avoided; and the problems of high drilling friction resistance and difficulty in applying the drilling pressure of existing horizontal wells and extended reach wells are solved.
Description
Technical field
The present invention relates to a kind of drilling tools, especially the surge pressure pulse drag reduction drilling tool of the unconventional drilling well such as high angle hole, extended reach well, horizontal well.
Background technology
Existing pressure pulse friction reducer is mainly divided three classes: (1) adopts rotor to rotate in stator, and periodic variation flow section area makes drilling fluid produce pressure pulse, and then drives oscillation device to produce axial vibration; (2) adopt the mobile blocked valve of valve control mechanism operation, periodically block drilling fluid and flow, produce pressure pulse; (3) adopt the mode of way-type drilling unit, impact pipe nipple and produce pressure pulse, drive the bumper jar of bottom to produce impact shock.
Along with mineral exploration and exploitation field constantly expands, mineral resources buried depth increases, and the unconventional drilling hole number such as high angle hole, extended reach well, horizontal well are on the increase, and the large problem of frictional resistance moment of torsion has become the outstanding factor of restriction complex structural well.The slide drilling System Implementation horizontal segment drillng operation that domestic main employing helicoid hydraulic motor is power, and drill string itself does not rotate, due to drill string gravity and drilling direction inconsistent, the drilling tool borehole wall that reclines, produce huge frictional resistance and moment of torsion, be difficult to effectively apply the pressure of the drill, drilling efficiency is low, and easily causes the accident such as bit freezing bouncing of drilling tool in talus deposit and hole.
Summary of the invention
Object of the present invention is just for above-mentioned the deficiencies in the prior art, and a kind of jetting type surge pressure pulse drag reduction drilling tool is provided
The object of the invention is to be achieved through the following technical solutions:
Surge pressure pulse vibration drag reduction drilling tool, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
Throttling plate 10 center is provided with throttling main aperture 12, the surrounding of throttling main aperture 12 radially equal angles is provided with 2-8 throttling pore 13, the overall diameter sum of throttling pore 13 is 1/4-1/3 with the diameter ratio of throttling main aperture 12, and the diameter of main aperture 12 is 1/4-1/3 with drilling tool external diameter ratio.
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Drilling fluid through jetting type surge pressure pulse drag reduction drilling tool produces high-frequency pressure pulse, pulsed pressure wave makes lower drilling string produce vibration, the block stamp of jetting type surge pressure pulse drag reduction drilling tool inside applies high-frequency percussion load to lower drilling string simultaneously, make lower drilling string produce impact shock, reduce the friction factor between drill string and the borehole wall, reach the object that reduces frictional resistance, drilling fluid, through helicoid hydraulic motor and drill bit, returns to earth's surface sedimentation basin on the annulus between drill string and the borehole wall afterwards.
Beneficial effect: jetting type surge pressure pulse resistance absorber is installed to after drilling assembly, carrying out extended reach well, long horizontal sections horizontal well, in the drilling process of the complex structural wells such as horizontal branch well, the drilling fluid of drill string inside is through the fluidic of jetting type surge pressure pulse resistance absorber inside, driven plunger moves back and forth in cylinder body high frequency, block stamp opens and closes operation to throttling plate 10 main apertures, the flow section area of throttling plate is periodically changed, and drilling liquid pressure raises in the short time at the utmost point and reduces, the surge pressure pulse going down forming is to drill string, and block stamp is when closing throttling plate main aperture, to throttling plate, apply shock loading, the impact shock going down forming is to drill string, surge pressure pulse and the impact shock resonance effect that can superpose on the basis of the sliding friction between drill string and the borehole wall, thereby reduced the effective friction coefficient between drill string and the borehole wall, be that frictional resistance reduces.This drilling tool can effectively reduce the frictional resistance between drilling tool and the borehole wall, more efficiently by load transfer to lower drilling tool, improve rate of penetration, avoided the generation of the down-hole accidents such as bit bouncing, bit freezing, having solved existing level well, extended reach well, to creep into frictional resistance large, is difficult to apply the problem of the pressure of the drill.
Accompanying drawing explanation
Accompanying drawing 1 is the left end that the right-hand member of jetting type surge pressure pulse vibration resistance absorber structure chart a meets b
Accompanying drawing 2 is A-A ' sectional drawing in accompanying drawing 1
Accompanying drawing 3 is B-B ' sectional drawing in accompanying drawing 1.
1 top connection, 2 outer shells, 3 upper press covers, 4 fluidics, 5 cylinder bodies, 6 pistons, 7 cylinder caps, 8 spacers, 9 block stamps, 10 throttling plates, 11 lower contacts, 12 throttling main apertures, 13 throttling pore.
The specific embodiment
Below in conjunction with accompanying drawing and example, be described in further detail.
Surge pressure pulse vibration drag reduction drilling tool, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
Throttling plate 10 center is provided with throttling main aperture 12, the surrounding of throttling main aperture 12 radially equal angles is provided with 2-8 throttling pore 13, the overall diameter sum of throttling pore 13 is 1/4-1/3 with the diameter ratio of throttling main aperture 12, and the diameter of main aperture 12 is 1/4-1/3 with drilling tool external diameter ratio.
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Structure explanation: top connection 1 is connected with outer shell 2 by screw thread, and outer shell 2 is connected with lower contact 11 by screw thread.Outer cylinder interior is followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9, throttling plate 10 from top to bottom.Upper press cover 3 tops are inserted top connection 1 centre bore and seal with sealing ring, upper press cover 3 soffits and fluidic 4 upper surface end contacts also seal with sealing ring, upper press cover 3 outsides and outer shell 2 seal by sealing ring, fluidic 4 soffits and cylinder body 5 upper surface end contacts also seal with sealing ring, between cylinder body 5 and outer shell 2, by sealing ring, seal, piston 6 inserts cylinder body 5 and forms sliding pair, piston 6 lower piston bars are through cylinder cap 7 centre bores, cylinder cap 7 tops are inserted cylinder body and seal with sealing ring, piston 6 lower piston bars insert block stamp 9 endoporus and adopt the conical surface to connect, spacer 8 upper surfaces and cylinder cap 7 end contacts, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts, throttling plate 10 is provided with throttling main aperture 12 and two above throttling pore 13.
Jetting type surge pressure pulse vibration resistance absorber is mainly comprised of fluidic 4, cylinder body 5, piston 6, block stamp 9 and throttling plate 10.Top connection 1 top is provided with screw thread and is connected with drill string, and lower contact 11 bottoms are provided with screw thread and are connected with drill string.Drilling fluid enters jetting type surge pressure pulse vibration resistance absorber by upper drilling string, by fluidic 4 driven plunger 6 in the interior reciprocating motion of cylinder body 5, piston 6 drives block stamp 9 to move back and forth, drilling fluid arrives throttling plate epicoele by the gap between fluidic 4 drain hole and cylinder body 5 and outer shell 2, the throttling main aperture 12 of 9 pairs of throttling plates 10 of block stamp opens and closes, make the flow section area cyclically-varying of throttling plate 10, drilling liquid pressure raises in the short time at the utmost point and reduces and forms surge pressure pulse, block stamp 9 is when closing throttling plate 10, apply shock loading to throttling plate 10, the vibration of surge pressure pulse and axial impact vibration pass to lower drilling string, reach the object that reduces frictional resistance.
Embodiment 1
Drilling tool external diameter is the surge pressure pulse vibration drag reduction drilling tool of Ф=120mm, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
The throttling main aperture 12 diameter 30mm that throttling plate 10 center is provided with.The surrounding of throttling main aperture 12 radially equal angles is provided with 3 throttling pore 13, and the diameter of single throttling pore 13 is 3mm.
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Embodiment 2
Drilling tool external diameter is the moving drag reduction drilling tool of Ф=168mm, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
The throttling main aperture 12 diameter 56mm that throttling plate 10 center is provided with, the surrounding of main aperture 12 radially equal angles is provided with 8 throttling pore 13, and the diameter of single throttling pore 13 is 2mm;
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Embodiment 3
Drilling tool external diameter is the surge pressure pulse vibration drag reduction drilling tool of Ф=120mm, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
The throttling main aperture 12 diameter 40mm that throttling plate 10 center is provided with, the surrounding of main aperture 12 radially equal angles is provided with 5 throttling pore 13, and the diameter of single throttling pore 13 is 2.5mm;
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Embodiment 4
Drilling tool external diameter is the surge pressure pulse vibration drag reduction drilling tool of Ф=88mm, to be connected with outer shell 2 by screw thread by top connection 1, outer shell 2 is connected with lower contact 11 by screw thread, outer shell 2 inside are followed successively by upper press cover 3, fluidic 4, cylinder body 5, piston 6, cylinder cap 7, spacer 8, block stamp 9 and throttling plate 10 from top to bottom, spacer 8 soffits and throttling plate 10 end contacts, block stamp 9 and throttling plate 10 end contacts, throttling plate 10 soffits and lower contact 11 end contacts form.
The throttling main aperture 12 diameter 22mm that throttling plate 10 center is provided with, the surrounding of main aperture 12 radially equal angles is provided with 2 throttling pore 13, and the diameter of single throttling pore 13 is 3mm;
Block stamp 9 is controlled opening and closing of main aperture 12, and block stamp 9 in throttling main aperture 12, in the generation pressure differential up and down of throttling plate 10, has applied high-frequency percussion load to throttling plate 10 on closing throttling plate 10, has produced impact shock on drill string.
Claims (3)
1. a jetting type surge pressure pulse drag reduction drilling tool, to be connected with outer shell (2) by screw thread by top connection (1), outer shell (2) connects to form by screw thread and lower contact (11), it is characterized in that, outer shell (2) inside is followed successively by upper press cover (3) from top to bottom, fluidic (4), cylinder body (5), piston (6), cylinder cap (7), spacer (8), block stamp (9) and throttling plate (10), spacer (8) soffit and throttling plate (10) end contact, block stamp (9) and throttling plate (10) end contact, throttling plate (10) soffit and lower contact (11) end contact form.
2. according to jetting type surge pressure pulse drag reduction drilling tool claimed in claim 1, it is characterized in that, the center of throttling plate (10) is provided with throttling main aperture (12), the surrounding of throttling main aperture (12) radially equal angles is provided with 2-8 throttling pore (13), the diameter ratio of the overall diameter sum of throttling pore (13) and throttling main aperture (12) is 1/4-1/3, and the diameter of main aperture (12) is 1/4-1/3 with drilling tool external diameter ratio.
3. according to jetting type surge pressure pulse drag reduction drilling tool claimed in claim 1, it is characterized in that, block stamp (9) is controlled opening and closing of main aperture (12), block stamp (9) is when closing the upper throttling main aperture (12) of throttling plate (10), generation pressure differential up and down in throttling plate (10), apply high-frequency percussion load to throttling plate (10), on drill string, produced impact shock.
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CN201310664890.1A CN103696686A (en) | 2013-12-09 | 2013-12-09 | Jet-type explosive pressure pulse anti-drag drilling tool |
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CN201310664890.1A CN103696686A (en) | 2013-12-09 | 2013-12-09 | Jet-type explosive pressure pulse anti-drag drilling tool |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106246175A (en) * | 2016-09-23 | 2016-12-21 | 中国矿业大学 | A kind of pulsing jet and mechanical shock combined-breaking rock mechanism |
CN106703686A (en) * | 2017-03-08 | 2017-05-24 | 中国石油天然气集团公司 | Pulsed-jet longitudinal impactor |
CN112227956A (en) * | 2020-09-18 | 2021-01-15 | 长江大学 | Jet-type hydraulic pulse nipple |
CN112696163A (en) * | 2021-01-26 | 2021-04-23 | 中国石油大学(北京) | Well descending friction-reducing hydraulic vibrator |
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US6053261A (en) * | 1996-04-29 | 2000-04-25 | Walter; Bruno H. | Flow pulsing method and apparatus for the increase of the rate of drilling |
CN2385068Y (en) * | 1998-05-15 | 2000-06-28 | 长春科技大学 | Deep well drilling fluid dynamic jet impacter |
CN2550477Y (en) * | 2002-01-14 | 2003-05-14 | 中国石油化工股份有限公司 | Jet flow type impact device |
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CN101319595A (en) * | 2008-07-22 | 2008-12-10 | 吉林大学 | Jet stream type impactor for oil gas well drilling |
CN202937185U (en) * | 2012-12-14 | 2013-05-15 | 中国石油集团渤海钻探工程有限公司 | Jet flow type hydraulic hammer |
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US6053261A (en) * | 1996-04-29 | 2000-04-25 | Walter; Bruno H. | Flow pulsing method and apparatus for the increase of the rate of drilling |
CN2385068Y (en) * | 1998-05-15 | 2000-06-28 | 长春科技大学 | Deep well drilling fluid dynamic jet impacter |
US20040069533A1 (en) * | 2000-12-02 | 2004-04-15 | Franz-Josef Puttmann | Pneumatic rock-boring device and method for starting such a device |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106246175A (en) * | 2016-09-23 | 2016-12-21 | 中国矿业大学 | A kind of pulsing jet and mechanical shock combined-breaking rock mechanism |
CN106703686A (en) * | 2017-03-08 | 2017-05-24 | 中国石油天然气集团公司 | Pulsed-jet longitudinal impactor |
CN106703686B (en) * | 2017-03-08 | 2018-10-30 | 中国石油天然气集团公司 | Pulsing jet formula impact of collision device |
CN112227956A (en) * | 2020-09-18 | 2021-01-15 | 长江大学 | Jet-type hydraulic pulse nipple |
CN112227956B (en) * | 2020-09-18 | 2023-01-24 | 长江大学 | Jet-type hydraulic pulse nipple |
CN112696163A (en) * | 2021-01-26 | 2021-04-23 | 中国石油大学(北京) | Well descending friction-reducing hydraulic vibrator |
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Application publication date: 20140402 |