CN102536114B - Mechanical underground vibration-absorption punching drilling tool - Google Patents

Mechanical underground vibration-absorption punching drilling tool Download PDF

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Publication number
CN102536114B
CN102536114B CN201010617044.0A CN201010617044A CN102536114B CN 102536114 B CN102536114 B CN 102536114B CN 201010617044 A CN201010617044 A CN 201010617044A CN 102536114 B CN102536114 B CN 102536114B
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CN
China
Prior art keywords
cylinder
impact
punching
vibration
plunger
Prior art date
Application number
CN201010617044.0A
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Chinese (zh)
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CN102536114A (en
Inventor
管志川
刘永旺
史玉才
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中国石油大学(华东)
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Priority to CN201010617044.0A priority Critical patent/CN102536114B/en
Publication of CN102536114A publication Critical patent/CN102536114A/en
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Publication of CN102536114B publication Critical patent/CN102536114B/en

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Abstract

A mechanical underground vibration-absorption punching drilling tool comprises a spline mandrel, a spline cylinder, a vibration-reducing return spring outer cylinder, and a punching assembly outer cylinder, wherein an upper part matching joint is connected to the top end of the spline mandrel; the spline cylinder is connected with the vibration-reducing return spring outer cylinder and the punching assembly outer cylinder into a whole; the spline mandrel is arranged in the spline cylinder, the vibration-reducing return spring outer cylinder and the punching assembly outer cylinder; the lower end of the spline mandrel is connected with a shunting structure; the spline mandrel is connected with a plunger through the shunting structure; the lower end of the plunger is arranged in a punching cylinder; the lower part of the punching cylinder is arranged in a punching bearing structure; the lower end of the punching bearing structure is connected with a lower part matching joint; and a spacing structure is arranged at the lower end of the punching assembly outer cylinder. According to the invention, the vibration reduction for a drill string is combined with the high-frequency low-punching power of a drill bit, and longitudinal vibration easy to cause fatigue rupture of the drill string is converted into internal energy of a vibration-reducing return spring and punching power providing convenience for improving drilling speed, so as to fulfill rotary punching drilling and improve rock breaking efficiency.

Description

Mechanical underground vibration-absorption punching drilling tool
One, technical field
The present invention relates to the corollary apparatus in a kind of oil, natural gas deep formation rotary percussion drill by driving well operations,, specifically a kind of mechanical underground vibration-absorption punching drilling tool.
Two, background technology
At present, in oil, natural gas deep formation rotary percussion drill by driving well operations, add the impact force of a high frequency, low ballistic work during on drill bit top, can greatly improve operating efficiency and the broken rock rate of penetration of drill bit.Rotary percussion drilling technology is exactly a kind of emerging drilling technology forming based on this theory, and the drilling well that shows to spin of research and on-the-spot application result has advantages of that hard formation rate of penetration is high.But wearing and tearing and the problem of fracture failure easily appear in drill teeth in the drilling process that spins, the extensional vibration generation of analyzing its reason and may be the extensional vibration of drill string and the vibration of impactor and drill string is resonated due to acting in conjunction.According to new theory, design the life-span long and can guarantee the novel impactor of drillng operation safety, to improving rotary percussion drilling operating efficiency, shorten the deep formation drillng operation cycle, the cost that reduces in oil and gas development process is extremely important.
Three, summary of the invention
Object of the present invention is exactly the defect existing for prior art, provides one can either reduce method of longitudinal vibration of drilling string, protects down-hole equipment safety, and the mechanical underground vibration-absorption punching drilling tool of the impact force of high frequency, low ballistic work can be provided again.
Its technical scheme is: comprise splined mandrel, spline tube, vibration damping back-moving spring urceolus, impact assembly urceolus, splined mandrel top is connected with top and coordinates joint, spline tube and vibration damping back-moving spring urceolus, impacting assembly urceolus joins together, splined mandrel is positioned at spline tube, vibration damping back-moving spring urceolus and impact assembly urceolus inside, in vibration damping back-moving spring urceolus, be provided with spring positioning joint and vibration damping back-moving spring, between the shoulder of vibration damping back-moving spring and splined mandrel bottom and spring positioning joint, splined mandrel lower end connects flow dividing structure, splined mandrel connects plunger by flow dividing structure, plunger outer wall is provided with impact energy accumulation spring, impact energy accumulation spring is impacting between the shoulder and the upper end of impact cylinder of assembly outer tube inner wall, plunger lower end is provided with water intaking valve, the lower end of plunger is positioned at impact cylinder inside, the bottom of impact cylinder is positioned to hold hits inside configuration, hold and hit connection bottom, structure lower end cooperation joint, bottom coordinates the upper end of joint to be positioned at impact assembly urceolus inside, impact assembly urceolus lower end and be provided with position limiting structure.
Basic principle is: when method of longitudinal vibration of drilling string, drive plunger with respect to impacting chamber and produce axially reciprocating, realize the percussion of impact cylinder by impacting the pressure control of drilling fluid in chamber.Meanwhile, absorb the energy of vibration by vibration damping back-moving spring, and instrument is resetted, the portion of energy of utilizing impact assembly to transform vibration is ballistic work, realizes on the basis of stablizing drilling rod and drill bit and realizes rotary percussion drilling.
Effect of the present invention is: the present invention impacts drill stem vibration damping to combine with drill bit high frequency, low ballistic work, to easily cause that the extensional vibration that drill string fatigue destroys is converted into the interior energy of vibration damping back-moving spring and is conducive to improve the ballistic work of drilling speed, realize rotary percussion drilling, improve efficiency of breaking rock, become and be harmful to as favourable.Meanwhile, do not need to change bottom hole assemblies, do not affect normal drill-in fluid circulation and creep into operation.Even if instrument breaks down, still can use as damper.This instrument relatively simple for structure, principle is also feasible, in limited space, down-hole, each parts have enough large size and intensity, thereby guarantee that its working life meets the needs of engineering.
Four, accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the present invention;
Accompanying drawing 2 is the generalized sections at A-A of the present invention place;
Accompanying drawing 3 is the generalized sections at B-B of the present invention place;
Accompanying drawing 4 is the generalized sections at C-C of the present invention place.
Five, the specific embodiment
With reference to Fig. 1-4, comprise splined mandrel 2, spline tube 3, vibration damping back-moving spring urceolus 4, impact assembly urceolus 10, splined mandrel 2 tops are connected with top and coordinate joint 1, spline tube 3 joins together with vibration damping back-moving spring urceolus 4, impact assembly urceolus 10, can hit structure 12 and coordinate with holding, for transmitting torque and allow splined mandrel 2 to pump.Splined mandrel 2 is positioned at spline tube 3, vibration damping back-moving spring urceolus 4 and impact assembly urceolus 10 inside, in vibration damping back-moving spring urceolus 4, be provided with spring positioning joint 6 and vibration damping back-moving spring 5, between the shoulder and spring positioning joint 6 of vibration damping back-moving spring 5 and splined mandrel 2 bottoms, splined mandrel 2 lower ends connect flow dividing structure 7, splined mandrel 2 connects plunger 8 by flow dividing structure 7, plunger 8 outer walls are provided with impact energy accumulation spring 9, impact energy accumulation spring 9 is impacting between the shoulder and the upper end of impact cylinder 11 of assembly urceolus 10 inwalls, plunger 8 lower ends are provided with water intaking valve 13, the lower end of plunger 8 is positioned at impact cylinder 11 inside, the bottom of impact cylinder 11 is positioned to hold hits structure 12 inside, hold and hit structure 12 connection bottoms, lower end cooperation joints 15, bottom coordinates the upper end of joint 15 to be positioned at impact assembly urceolus 10 inside, impact assembly urceolus 10 lower ends and be provided with position limiting structure 14.
The present invention can integrated connection between drilling rod and broken rock drill bit.While implementing rotary percussion drill by driving well operations, due to the extensional vibration of drill string, drilling rod drives top to coordinate joint 1, splined mandrel 2, flow dividing structure 7, plunger 8 moves up and down together, simultaneously, vibration damping back-moving spring 5 in vibration damping back-moving spring urceolus 4 can be in vibration damping by expanding and compressing, guarantee vibration damping back-moving spring urceolus 4, impact assembly urceolus 10, impacting assembly does not move up and down with drill string, in the time that drill string moves upward, top coordinates joint 1, splined mandrel 2, flow dividing structure 7, plunger 8 moves upward together, impact chamber and produce negative pressure, impact cylinder 11 impacts to hold and hits structure 12, water intaking valve on plunger 8 13 with hold the hydrophthalmia that hits structure 12 lower middle position for the normal circulation of drilling fluid.In the time that drill string moves downward, drive top to coordinate joint 1, splined mandrel 2, flow dividing structure 7, plunger 8 moves downward together, the drilling fluid in compression shock chamber, movable part impact cylinder 11 is moved upward relatively, and compression shock energy-storaging spring 9, for realizing impact energy accumulation.Thereby realize the function that absorbing is impacted, improve efficiency of breaking rock.

Claims (1)

1. a mechanical underground vibration-absorption punching drilling tool, comprise: top coordinates joint, splined mandrel, spline tube, vibration damping back-moving spring protection cylinder, vibration damping back-moving spring, spring positioning joint, flow dividing structure, plunger, impact energy accumulation spring, impacts assembly urceolus, holds and hit structure, water intaking valve, impact cylinder, position limiting structure and bottom cooperation joint, it is characterized in that: top coordinates joint, splined mandrel, flow dividing structure, plunger to join together, spline tube and vibration damping back-moving spring urceolus, impact assembly urceolus join together, splined mandrel is positioned at spline tube, vibration damping back-moving spring urceolus and impact assembly urceolus inside, in vibration damping back-moving spring urceolus, be provided with spring positioning joint and vibration damping back-moving spring, vibration damping back-moving spring is between the shoulder and spring positioning joint of splined mandrel bottom, splined mandrel lower end connects flow dividing structure, splined mandrel connects plunger by flow dividing structure, plunger outer wall is provided with impact energy accumulation spring, impact energy accumulation spring is impacting between the shoulder and the upper end of impact cylinder of assembly outer tube inner wall, the lower end of plunger is positioned at impact cylinder inside, the bottom of impact cylinder is positioned at holds the inside of hitting structure, hold and hit connection bottom, structure lower end cooperation joint, bottom coordinates the upper end of joint to be positioned at impact assembly urceolus inside, impact assembly urceolus lower end and be provided with position limiting structure,
Described plunger lower end is provided with water intaking valve; Impact in chamber and have drilling fluid, this part drilling fluid is entered by the water intaking valve of plunger lower end, flows out by water intaking valve; Described impact cylinder can be with respect to impacting assembly urceolus, hold and hit structure generation and move back and forth to axial; Described impact cylinder directly impacts to hold and hits structure.
CN201010617044.0A 2010-12-23 2010-12-23 Mechanical underground vibration-absorption punching drilling tool CN102536114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010617044.0A CN102536114B (en) 2010-12-23 2010-12-23 Mechanical underground vibration-absorption punching drilling tool

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Application Number Priority Date Filing Date Title
CN201010617044.0A CN102536114B (en) 2010-12-23 2010-12-23 Mechanical underground vibration-absorption punching drilling tool

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CN102536114B true CN102536114B (en) 2014-06-25

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CN102777122B (en) * 2012-08-16 2014-07-09 熊继有 Impact screw drilling tool
CN103174380B (en) * 2013-03-21 2014-05-14 中国石油大学(华东) Spring energy-storage inspiring type rotary percussive drill device
CN103321569A (en) * 2013-06-25 2013-09-25 中国海洋石油总公司 Cam type high-frequency percussion well drilling tool
CN105201403B (en) * 2015-09-06 2017-09-05 四川省贝特石油技术有限公司 Autonomous type perseverance turns round constant pressure efficient rock-breaking instrument
CN105156027B (en) 2015-10-01 2017-08-22 中国石油集团西部钻探工程有限公司 Torsion impact speed enhancing apparatus
CN108643824B (en) * 2018-04-17 2020-01-03 王勇 Hydraulic vibration-damping impact drilling tool
CN109555492B (en) 2018-11-22 2020-01-14 中国石油大学(华东) Device and method for reducing pressure of well bottom annular drilling fluid based on drill column vibration

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DE3911469A1 (en) * 1989-04-08 1990-10-11 Tracto Technik Drilling installation
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