CN105178860B - Torsional pendulum oscillator - Google Patents

Torsional pendulum oscillator Download PDF

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Publication number
CN105178860B
CN105178860B CN201510569123.1A CN201510569123A CN105178860B CN 105178860 B CN105178860 B CN 105178860B CN 201510569123 A CN201510569123 A CN 201510569123A CN 105178860 B CN105178860 B CN 105178860B
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CN
China
Prior art keywords
main shaft
thrust bearing
tube
sleeve
oscillator
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CN201510569123.1A
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Chinese (zh)
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CN105178860A (en
Inventor
夏成宇
吕加华
冯定
钱利勤
孙巧雷
赵珩煜
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长江大学
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Priority to CN201510569123.1A priority Critical patent/CN105178860B/en
Publication of CN105178860A publication Critical patent/CN105178860A/en
Application granted granted Critical
Publication of CN105178860B publication Critical patent/CN105178860B/en

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Abstract

The invention relates to a torsional pendulum oscillator, and belongs to the technical field of oil and natural gas extracting and drilling tools. The torsional pendulum oscillator comprises a main shaft, an outer sleeve, a thrust bearing A, a thrust bearing B and a restrictor ring, wherein the outer sleeve is arranged on the main shaft in a sleeving mode; inner bumps are uniformly distributed on the inner wall of the periphery of the outer sleeve; the main shaft at one side of each inner bump is provided with the thrust bearing A; and the main shaft at one side of the thrust bearing A is provided with the restrictor ring through a regulating sleeve A and a regulating sleeve B. According to the torsional pendulum oscillator, by virtue of relative motion of a runner port and a housing inner bump, effects of a movable valve and a fixed valve are generated, so that pressure pulses are generated to realize radial vibration, torsional pendulum motion and axial vibration, and therefore, the mechanical drilling speed can be effectively increased. The torsional pendulum oscillator solves that the problems that the mechanical drilling speed of a horizontal well is severely affected and underground complex accidents such as sticking and the like are easily caused due to the fact that greater friction resistance and a backing pressure phenomenon are generated in a current drilling process, and is especially suitable for drilling use of an oil well.

Description

One kind rocks oscillator
Technical field
The present invention relates to one kind rocks oscillator, category oil, natural gas extraction drilling tool technical field.
Background technology
In drilling process, frictional resistance is the key factor for affecting drilling speed.During conventional drilling, locate between BHA and the borehole wall In static friction state.Either straight well, directional well or horizontal well, the frictional resistance in drilling process between drill string and the borehole wall is all shadow The key factor of drilling speed is rung, the additional torque by caused by BHA is with wall friction can cause rate of penetration low with frictional resistance, Tool-face control is difficult, and single time drilling chi is little, abnormal serious drill string and bit wear etc..Applied when accumulation frictional force exceedes Plus during the pressure of the drill, backing pressure phenomenon just occurs, force tubing string that dextrorotation bending or Helical Buckling occur.For directional well and horizontal well and Speech, high frictional resistance can also form crooked hole, so as to the ability for causing rig to bore up to depth capacity is reduced, or even influence whether oil well Yield.During horizontal well drilling, especially drilling tool is in the larger well section of hole curvature, or equally can produce long horizontal sections are crossed Larger frictional resistance, backing pressure phenomenon, it is impossible to effectively apply the pressure of the drill.Frictional resistance is big, backing pressure problem not only has a strong impact on the power auger of horizontal well Speed, while also easily causing the generation of the down-hole complex accidents such as viscous card.
Practice have shown that, the hydroscillator for producing axial vibration is have developed using domestic and international expert for reducing frictional resistance.Water Forced oscillation device makes drilling tool become dynamic friction in the static friction that down-hole is subject to by pressure pulse.By the high frequency vibrating of hydroscillator It is dynamic, change only by the pressuring method of drilling tool self gravitation.Hydroscillator down-hole drive drill string vibration when, by drilling tool and well Stiction between wall is changed into kinetic force of friction.
The content of the invention
It is an object of the invention to:There is provided one kind be capable of achieving to rock in drilling process, radial direction and axial vibration, will bore Static friction during entering is changed into dynamic friction, can effectively reduce frictional resistance, and that improves machinery drilling rocks oscillator.
The technical scheme is that:
One kind rocks oscillator;Including main shaft, outer tube, thrust bearing A, thrust bearing B and restrictor ring, its feature exists In:Outer tube is set with main shaft, outer tube circumferential outer surface interval shape is symmetrically arranged with outer projection.
Interior projection is evenly equipped with the circumferential inner wall of outer tube, thrust bearing A, thrust shaft are housed on the main shaft of interior projection side Hold on the main shaft of A sides by adjusting sleeve A and adjusting sleeve B equipped with restrictor ring, by sliding on the main shaft of thrust bearing A opposite sides Sealed base A and back-up ring A is equipped with sealing ring A;Adjusting sleeve C, the main shaft of adjusting sleeve C side are housed on the main shaft of interior projection opposite side Upper symmetry shape is provided with alignment bearing, and turbine rotor and turbine stator, the master of adjusting sleeve C opposite side are provided between alignment bearing Thrust bearing B is housed, by being slidingly sealed base B and back-up ring B equipped with sealing ring B on the main shaft of thrust bearing B sides on axle;Institute The interior projection stated and it is respectively arranged with runner mouth on the corresponding main shaft of adjusting sleeve C.
Described outer tube circumferential outer surface interval shape is symmetrically arranged with outer projection.
Described outer tube one end port is fixed with end cap by clamping bolt, and outer tube other end port threads are provided with Outer pipe connector.
Gap is provided between described outer pipe connector and main shaft.
Described being slidingly sealed on the main shaft of base B sides is equipped with hold-down ring by clamping bolt and clamping sleeve.
Described main shaft one end is provided with external screw thread, and the main shaft other end is provided with internal thread.
The invention has the beneficial effects as follows:
This rocks oscillator, simple and compact for structure;In drilling process, by the relative fortune of runner mouth and inside the shell projection The lively valve of movable property with determine valve effect, realize radial vibration, torsional movement and axial vibration, Jin Erke so as to produce pressure pulse Effectively improve rate of penetration.Solve and can produce in existing drilling process larger frictional resistance, backing pressure phenomenon, not only have a strong impact on level The rate of penetration of well, while also easily causing the problem that the down-hole complex accidents such as viscous card occur, being particularly well-suited to oilwell drilling makes With.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the mplifying structure schematic diagram at Figure 1A;
Fig. 3 is the mplifying structure schematic diagram at Figure 1B;
Fig. 4 is Figure 1A-A to schematic cross-section.
In figure:1st, main shaft, 2, outer tube, 3, thrust bearing A, 4, thrust bearing B, 5, restrictor ring, 6, interior projection, 7, adjustment Set A, 8, adjusting sleeve B, 9, be slidingly sealed base A, 10, back-up ring A, 11, sealing ring A, 12, adjusting sleeve C, 13, alignment bearing, 14, Turbine rotor, 15, turbine stator, 16, thrust bearing B, 17, be slidingly sealed base B, 18, back-up ring B, 19, sealing ring B, 20, pressure Tight set, 21, hold-down ring, 22, end cap, 23, outer pipe connector, 24, outer projection, 25, runner mouth.
Specific embodiment
This rocks oscillator including main shaft 1, outer tube 2, thrust bearing A3, thrust bearing B4 and restrictor ring 5.On main shaft 1 Outer tube 2 is set with, the circumferential outer surface of outer tube 2 interval shape is provided with outer projection 24, and outer projection 24 is in the circumferential outer surface of outer tube 2 Face is arranged in 180 degree;3 interior projections 6 are evenly equipped with the circumferential inner wall of outer tube 2, equipped with only on the main shaft 1 of the side of interior projection 6 Restrictor ring 5 is equipped with by adjusting sleeve A7 and adjusting sleeve B8 on the main shaft 1 of thrust bearing A3, thrust bearing A3 side, restrictor ring 5 is allowed There is a small amount of slurry liquid to enter thrust bearing A3 parts, to play lubrication.By sliding on the main shaft 1 of thrust bearing A3 opposite sides Dynamic sealing base A9 and back-up ring A10 is equipped with sealing ring A11, to realize sealing.
Adjusting sleeve C12 is housed on the main shaft 1 of the opposite side of interior projection 6, is divided on interior projection 6 and the corresponding main shaft 1 of adjusting sleeve C12 It is not provided with 3 runner mouths 25.
Symmetry shape is provided with alignment bearing 13 on the main shaft 1 of adjusting sleeve C12 side, on the main shaft 1 between alignment bearing 13 It is provided with turbine rotor 14 and turbine stator 15;Alignment bearing 13 is used to adjust the radial direction vibration between turbine rotor 14;Whirlpool It is relatively fixed between wheel rotor 14 and outer tube 2.
Thrust bearing B16 is housed on the main shaft 1 of adjusting sleeve C12 opposite side, is passed through on the main shaft 1 of thrust bearing B16 sides Base B17 and back-up ring B18 is slidingly sealed equipped with sealing ring B19;It is slidingly sealed on the main shaft 1 of base B19 sides by fastening spiral shell Bolt and clamping sleeve 20 are equipped with hold-down ring 21;For leading portion(The opposite side of interior projection 6)The axially position of each part.
The one end of main shaft 1 for rocking oscillator is provided with external screw thread, and the other end of main shaft 1 is provided with internal thread.Use during work In being connected with drilling rod.One end port of outer tube 2 is fixed with end cap 22, the other end port threads of outer tube 2 peace by clamping bolt Equipped with outer pipe connector 23.Gap is provided between outer pipe connector 23 and main shaft 1.This rocks oscillator and prevents the axle of outer tube 2 To vibration, adjusting sleeve A7 contacts with interior projection 6, and the axial force of generation can be delivered to thrust bearing A3 by restrictor ring 5.It is another Side, adjusting sleeve C12 contacts with shoulder in outer tube 2, and by axial force transmission thrust bearing B16 is given.
When this rocks oscillator operation, drilling fluid is entered after main shaft 1 and enters turbine portion from runner mouth 25, so as to drive whirlpool Wheel rotor 14 rotates, because turbine rotor 14 is relatively fixed outer tube 2, so as to drive outer tube 2 to rotate together.Due to outer tube 2 circumferential outer surfaces interval shape is symmetrically arranged with outer projection 24, and outer projection 24 is arranged in the circumferential outer surface of outer tube 2 in 180 degree; In the rotary course of outer tube 2, when outer projection 24 is contacted with the borehole wall, the other parts of outer tube 2 depart from the borehole wall;The cycle of outer tube 2 Rotation, you can realize that this rocks the radial vibration of oscillator, simultaneously because outer projection 24 is also capable of achieving vibration with the effect of the borehole wall The torsional movement of device.Thrust bearing A3 is used to bear axial force in the course of work;Thrust bearing B16 is used to bear opposite side axial direction Power.
3 interior projections 6 for rocking oscillator correspond to respectively 3 runner mouths 25, and the width of interior projection 6 is slightly less than runner mouth 25 Width.When drilling fluid drives turbine rotor 14 to rotate together with outer tube 2, performance period between interior projection 6 and runner mouth 25 Property folding, you can produce periodic pressure pulse, so as to produce axial vibration, thus can be effective in drilling process is carried out Frictional resistance is reduced, mechanical separator speed is improved.
This rocks oscillator and compares existing hydroscillator, eliminates the concussion pipe nipple of conventional hydraulic oscillator and moves Power pipe nipple, overall structure is more simple compact.Radial vibration, torsional movement and axial vibration are capable of achieving in drilling process The drop of three-dimensional level wears away resistance, so as to imitate raising rate of penetration.And this rock oscillator do not have it is traditional determine valve with Dynamic valve valve block, but dynamic valve is produced with the relative motion of interior projection 6 by runner mouth 25 and valve effect is determined, so as to produce pressure arteries and veins Axial vibration is realized in punching, and reduces abrasive effect;Solve and can produce in existing drilling process larger frictional resistance, backing pressure phenomenon, no The rate of penetration of horizontal well is only had a strong impact on, while the problem for also easily causing the down-hole complex accidents such as viscous card to occur, especially fits Use for oilwell drilling.

Claims (5)

1. one kind rocks oscillator;Including main shaft(1), outer tube(2), thrust bearing A(3), thrust bearing B(4)And restrictor ring (5), it is characterised in that:Main shaft(1)On be set with outer tube(2), outer tube(2)Circumferential outer surface interval shape is symmetrically arranged with outer Projection(24);Outer projection(24)In outer tube(2)Circumferential outer surface is arranged in 180 degree;Outer tube(2)Circumferential inner wall on it is uniform There is interior projection(6), interior projection(6)The main shaft of side(1)It is upper that thrust bearing A is housed(3), thrust bearing A(3)The main shaft of side (1)It is upper to pass through adjusting sleeve A(7)With adjusting sleeve B(8)Equipped with restrictor ring(5), thrust bearing A(3)The main shaft of opposite side(1)It is upper logical Cross and be slidingly sealed base A(9)With back-up ring A(10)Equipped with sealing ring A(11);Interior projection(6)The main shaft of opposite side(1)Upper being equipped with is adjusted A whole set of C(12), adjusting sleeve C(12)The main shaft of side(1)Upper symmetry shape is provided with alignment bearing(13), alignment bearing(13)Between It is provided with turbine rotor(14)And turbine stator(15), adjusting sleeve C(12)The main shaft of opposite side(1)It is upper that thrust bearing B is housed (16), thrust bearing B(16)The main shaft of side(1)On by being slidingly sealed base B(17)With back-up ring B(18)Equipped with sealing ring B (19);Described interior projection(6)With adjusting sleeve C(12)Corresponding main shaft(1)On be respectively arranged with runner mouth(25).
2. one kind according to claim 1 rocks oscillator;It is characterized in that:Described outer tube(2)One end port leads to Cross clamping bolt and be fixed with end cap(22), outer tube(2)Other end port threads are provided with outer pipe connector(23).
3. one kind according to claim 2 rocks oscillator;It is characterized in that:Described outer pipe connector(23)With main shaft (1)Between be provided with gap.
4. one kind according to claim 1 rocks oscillator;It is characterized in that:Described is slidingly sealed base B(17)One The main shaft of side(1)It is upper to pass through clamping bolt and clamping sleeve(20)Equipped with hold-down ring(21).
5. one kind according to claim 1 rocks oscillator;It is characterized in that:Described main shaft(1)One end is provided with outer Screw thread, main shaft(1)The other end is provided with internal thread.
CN201510569123.1A 2015-09-09 2015-09-09 Torsional pendulum oscillator CN105178860B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105888553B (en) * 2016-04-13 2018-07-24 长江大学 A kind of three-dimensional vibrating hydroscillator
CN110485927B (en) * 2019-08-26 2020-12-04 北京工业大学 Three-dimensional hydraulic oscillation anti-drag drilling tool

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CN101463709A (en) * 2009-01-08 2009-06-24 西南石油大学 Torsional impact drilling tool
CN102418479A (en) * 2011-08-01 2012-04-18 西南石油大学 Axial oscillating tool for drill string
CN102704842A (en) * 2012-05-30 2012-10-03 中国石油化工集团公司 Hydro-oscillator for well drilling
CN102747974A (en) * 2012-06-15 2012-10-24 中国石油化工股份有限公司 Well drilling vibrator of horizontal well
CN103109033A (en) * 2010-07-01 2013-05-15 弗莱克斯钻孔有限公司 Radial vibrational apparatus
CN103174791A (en) * 2013-03-22 2013-06-26 中国石油大学(华东) Drilling column shock excitation anti-drag tool
CN203296692U (en) * 2013-06-17 2013-11-20 南充科探工具有限公司 Twisting-pressing double-punching tool
CN103696692A (en) * 2013-12-19 2014-04-02 西安长庆石油工具制造有限责任公司 Radial hydraulic vibrator
CN204139968U (en) * 2014-10-19 2015-02-04 长江大学 A kind of drilling well dipulse hydroscillator
US9057232B2 (en) * 2013-04-11 2015-06-16 Sanuwave, Inc. Apparatuses and methods for generating shock waves for use in the energy industry
CN204920792U (en) * 2015-09-09 2015-12-30 长江大学 Rock oscillator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2716483Y (en) * 2004-05-26 2005-08-10 中国石化集团胜利石油管理局钻井工艺研究院 Downhole vibrodrilling tool induced by hydraulic pulse
CN1786409A (en) * 2005-11-08 2006-06-14 中国石化集团胜利石油管理局钻井工艺研究院 Hydraulic pulse well drilling equipment
CN1995686A (en) * 2006-12-23 2007-07-11 辽河石油勘探局 Pulse-percussion drilling tool
CN101463709A (en) * 2009-01-08 2009-06-24 西南石油大学 Torsional impact drilling tool
CN103109033A (en) * 2010-07-01 2013-05-15 弗莱克斯钻孔有限公司 Radial vibrational apparatus
CN102418479A (en) * 2011-08-01 2012-04-18 西南石油大学 Axial oscillating tool for drill string
CN102704842A (en) * 2012-05-30 2012-10-03 中国石油化工集团公司 Hydro-oscillator for well drilling
CN102747974A (en) * 2012-06-15 2012-10-24 中国石油化工股份有限公司 Well drilling vibrator of horizontal well
CN103174791A (en) * 2013-03-22 2013-06-26 中国石油大学(华东) Drilling column shock excitation anti-drag tool
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CN204139968U (en) * 2014-10-19 2015-02-04 长江大学 A kind of drilling well dipulse hydroscillator
CN204920792U (en) * 2015-09-09 2015-12-30 长江大学 Rock oscillator

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