CN105134081B - Drilling vibration generating tool - Google Patents
Drilling vibration generating tool Download PDFInfo
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- CN105134081B CN105134081B CN201410253798.0A CN201410253798A CN105134081B CN 105134081 B CN105134081 B CN 105134081B CN 201410253798 A CN201410253798 A CN 201410253798A CN 105134081 B CN105134081 B CN 105134081B
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- outer barrel
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Abstract
The invention discloses a kind of Drilling vibration generating tool, the Drilling vibration generating tool includes being sequentially connected and each has the outer barrel of hollow cavity, breathe outer barrel and disc spring outer barrel, dished spring assembly is provided with disc spring outer barrel, the vibration mandrel that the outer barrel is penetrated with breathing outer barrel and is extended in the hollow cavity of the disc spring outer barrel, wherein, block piece is set between the inwall of the vibration mandrel and the breathing outer barrel, block piece is also prevented from vibrating mandrel and the disengagement of instrument other parts while the reciprocating stroke of limitation vibration mandrel, the instrument of being effectively prevented from falls well accident.In addition, the annular seal space internal filled liquid force feed that vibration mandrel, breathing outer barrel, disc spring outer barrel and driving piston limit jointly, to improve seal and disc spring group working life.
Description
Technical field
The present invention relates to one kind to vibrate generating tool, particularly a kind of Drilling vibration generating tool.
Background technology
In extended reach well, horizontal well drilling, because hole angle is big, the overwhelming majority of big hole deviation well section drill string deadweight presses to
The borehole wall, thus between tubing string and well can tubing string to meet frictional resistance larger.Cause to drag pressure, moment of torsion increase, and be delivered to drill bit
The pressure of the drill is discontinuous or limited so that only relies on straight well section drilling tool weight and is difficult to be sent into, tool-face is difficult to control, and is bored and is reached horizontal segment
Limited length and rate of penetration is relatively low.In recent years both at home and abroad extended reach well, horizontal well drilling research in related antifriction work
The research and development of tool are more, and Main way is that vibration is introduced in down-hole string to reduce the frictional resistance between tubing string and the borehole wall,
And good using effect is achieved at the scene.Underground vibrating antifriction tool produces vibration using fluid by certain mode,
Vibration is introduced into tubing string, dynamic friction is reduced to using the static friction factor that can make tubing string during slipping drilling and the borehole wall is vibrated
Factor size.So, the frictional resistance of tubing string can be greatly reduced, reaches available weight, raising that increase is delivered on drill bit
Rate of penetration and extension tubing string enter the purpose of well location moves.
For example, document Chang Qingqi areas gas storage Y37-2H well long horizontal sections drilling technology [J] gas industries .2012
(06) hydroscillator (Agitator) of U.S. NOV (National Oilwell Varco) company research and development is disclosed, and
A kind of drilling well hydroscillator is also disclosed that in patent document CN202689935U.Their operation principle is essentially identical, and
Include the vibration generating mechanism that drillstring vibrations are produced using hydraulic impulse.In addition, disclosed in patent document CN201031620
A kind of pulse displacement shocks generator is also a kind of vibration generating mechanism similar with foregoing vibration generating mechanism.It is however, above-mentioned
Involved drillstring vibrations generating mechanism is required to spring compartment and communicated with drilling well annular space, that is, spring compartment palpus during use
Full of drilling fluid, this can reduce the life-span sealed between spring and movable part, influence the whole service life of instrument.In addition, should
Vibration generating mechanism, which also there are no, designs special drop preventing mechanism, also has between mutual movement parts once disengaging existing drilling tool falls well
Risk.
The content of the invention
The present invention is intended to provide a kind of Drilling vibration generating tool, it can efficiently control the vibration row of vibration mandrel
Journey, and the disengaging between mutual movement parts is prevented, ensure drilling tool safety.In addition, instrument entirety work can also be extended by the present invention
In the life-span of work, ensure that its is safe and reliable.
In order to realize foregoing invention purpose, the invention provides a kind of Drilling vibration generating tool, including be sequentially connected and
The each outer barrel with hollow cavity, breathing outer barrel and disc spring outer barrel, are provided with dished spring assembly in disc spring outer barrel, penetrate described
Outer barrel and breathing outer barrel and the vibration mandrel extended in the hollow cavity of the disc spring outer barrel, in being in for the vibration mandrel
Free end in disc spring outer barrel is connected with driving piston, wherein, it is described vibration mandrel and it is described breathing outer barrel inwall it
Between block piece is set.
By setting position of the block piece in vibration mandrel, the reciprocating stroke of vibration mandrel can be limited.Meanwhile
Block piece is also prevented from vibrating mandrel during reciprocating motion with the disengagement of instrument other parts, efficiently avoid instrument
Fall well accident.
In some embodiments, the distance between connection end of the block piece and outer barrel is equal to vibrate mandrel
Vibratility adjustment.The vibratility adjustment of vibration mandrel is set by adjusting relative position of the block piece in vibration mandrel, so
This kind of Drilling vibration instrument can be made to be applied in the drilling well demand of different wells.
In some embodiments, the block piece binds round half in the vibration mandrel including two circumferentially opposedly
Watt.So, it can prevent that vibrate mandrel disengages during reciprocating motion with Drilling vibration instrument other parts, effectively keeps away
Exempt from instrument and fall well accident.
In some embodiments, floating is additionally provided between the inwall of the vibration mandrel and the breathing outer barrel to live
Plug, and the breathing outer barrel is provided with the breathing with forming the chamber between the block piece and the floating piston
Hole., can be by the fluid pressure outside Drilling vibration generating tool under the collective effect of spiracle, floating piston and second chamber
Power is transmitted to the upper surface of driving piston, driving piston upper and lower ends face is produced pressure differential, so as to occur for the Drilling vibration
The BHA of tool lower portion connection provides power.
In some embodiments, the vibration mandrel is connected with outer barrel by spline, and in spline join domain
It is also formed with first chamber.The contact area connected in being connected due to spline is larger, thus can transmit larger torque, simultaneously flower
The centering precision of key connection is higher, can make the reciprocal relative movement more flexibility and reliability between vibration mandrel and outer barrel.
In some embodiments, the vibration mandrel, breathing outer barrel, disc spring outer barrel and driving piston collectively define close
The second chamber closed, filled with hydraulic oil in the second chamber.Can so be provided for dished spring assembly and seal one it is good
Good sealed environment, so as to extend the life-span of dished spring assembly and seal, and then improve life-span and the safety of instrument overall work
Reliability.
In some embodiments, the volume variable quantity of the first chamber and the volume variable quantity phase of the second chamber
Deng.Because the volume variable quantity of first chamber and the volume variable quantity of second chamber are equal, and the volume of chamber change and second
The volume of chamber changes in the opposite direction, and so can mutually compensate for the liquid for sucking and breathing out each other, so as to realize drilling well
Outer barrel inside and outside drilling fluid is breathed in journey to exchange by the micrometeor or zero delivery of spiracle, avoids the erosion to spiracle,
Improve the safe to use and life-span of instrument.
In some embodiments, the volume variable quantity of the first chamber and second chamber is equal to the disc spring
The volume change of component.Due to sending out the volume in first chamber and second chamber during driving piston driving dished spring assembly motion
Changing, and the change of the volume produces by the change of dished spring assembly volume, it is therefore desirable to design the volume of dished spring assembly
Variable quantity is equal to the volume variable quantity in first chamber and second chamber, so as to further realize Drilling vibration tool interior and outer
The micrometeor or zero delivery in portion exchange.
In some embodiments, the dished spring assembly is located in second chamber, and the performance ginseng of the dished spring assembly
Number and preload size are adjustable.So driving piston can be adjusted with vibrating mandrel according to live actual condition when in use
Relative position, set with this performance parameter and pre-load size to dished spring assembly.
In some embodiments, the upper and lower ends of the floating piston are additionally provided with sealing ring.So make on floating piston
Lower both ends will not produce the phenomenon of leakage or gas leakage, so as to improve the efficiency of pistons work.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.
Fig. 1 is the sectional view of Drilling vibration generating tool.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to the ratio of reality.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Details described here is exemplary, and is only used for that embodiments of the invention are illustratively discussed, it
Presence be to provide for be considered as to the present invention principle and concept in terms of most useful and most intelligible description.Close
In this point, it is not attempted to exceed the CONSTRUCTED SPECIFICATION of the present invention Jie of basic comprehension required degree of the invention here
Continue, those skilled in the art is clearly understood that how to be practically carrying out the several of the present invention by specification and its accompanying drawing
Kind form.
Fig. 1 shows the sectional view of the Drilling vibration generating tool 100 according to the present invention.As illustrated, the Drilling vibration
Generating tool 100 includes being sequentially connected and each has the outer barrel 3, breathing outer barrel 4 and disc spring outer barrel 9 of hollow cavity.Outer barrel 3 with
It is attached respectively by screw thread between breathing outer barrel 4, breathing outer barrel 4 and disc spring outer barrel 9, its attachment structure is simple and reliable, dress
Tear open conveniently.The Drilling vibration generating tool 100, which also has, to be penetrated the outer barrel 3 and breathing outer barrel 4 and extends to the disc spring
Vibration mandrel 1 in the hollow cavity of outer barrel 9.It is connected with the free end in disc spring outer barrel 9 of the vibration mandrel 1
Drive piston 12.
According to the present invention, block piece 5 is set between the inwall of the vibration mandrel 1 and the breathing outer barrel 4.By setting
Put position of the block piece 5 in vibration mandrel 1, it is possible to easily limit the reciprocating stroke of vibration mandrel 1.Meanwhile hinder
Block piece 5 is also prevented from vibrating mandrel 1 during reciprocating motion with the disengagement of instrument other parts, efficiently avoid instrument
Fall well accident.In a preferred embodiment, the distance between the block piece 5 and connection end of outer barrel 3 can for example be set
It is set to the vibratility adjustment equal to vibration mandrel 1.
In a preferred embodiment, the block piece 5 is bound round in the vibration mandrel 1 circumferentially opposedly including two
Half-watt.Before the use, the vibration of vibration mandrel 1 is set by adjusting relative position of the block piece 5 in vibration mandrel 1
Stroke, this kind of Drilling vibration instrument 100 can so be applied in the drilling well demand of different wells.Setting the vibration row
Cheng Hou, block piece 5 is fixed in vibration mandrel 1, vibrated when can so prevent Drilling vibration generating tool 100 from working
The disengagement of mandrel 1 and instrument other parts, avoids instrument from falling the generation of well accident.In addition, the material of the half-watt of block piece 5 can be with
There is corrosion-resistant impact-resistant material to be made for selection, can improve its life-span used.
In embodiment as shown in Figure 1, it is additionally provided between the inwall of the vibration mandrel 1 and the breathing outer barrel 4 floating
Piston 7.In this case, the breathing outer barrel 4 be provided with formed the block piece 5 and the floating piston 7 it
Between chamber spiracle C.During drilling well, under spiracle C, floating piston 7 and second chamber B collective effect,
Fluid pressure outside Drilling vibration generating tool 100 can be transmitted to the upper surface of driving piston 12, make driving piston 12
Upper and lower ends face produces pressure differential, so as to provide power for the BHA of the bottom of Drilling vibration generating tool 100 connection.Separately
Outside, dished spring assembly 10 is additionally provided with disc spring outer barrel 9.When the periodic pressure impulse action from outside is on driving piston 12
When, drive disc spring group 10 periodically to stretch by the change can of inside and outside hydraulic pressure, and then drive vibration mandrel 1
Axial vibration.
In the embodiment shown in fig. 1, vibrate mandrel 1 and outer barrel 3 is preferably attached by spline.Connect in spline
Connect formed with first chamber A in region, and the cylindrical fit face on spline connection top is sealed by sealing ring 2.Due to spline
There is more polyhedral cooperation, the contact area for connecting it is larger, thus can transmit larger torque in connection.Meanwhile flower
The centering precision of key connection is higher, therefore the reciprocal relative movement between vibration mandrel 1 and outer barrel 3 can be made more flexibly may be used
Lean on, avoid other connecting modes, the problem of reciprocating motion resistance brought such as Flat dey joint is big.
In embodiment as shown in drawings, it is total to by vibration mandrel 1, breathing outer barrel 4, disc spring outer barrel 9 and driving piston 12
It is same to define closed second chamber B.Preferably, filled with hydraulic oil in the second chamber B, the purpose is to be disc spring group 10
And seal 11 provides a good sealed environment, so as to extend the life-span of dished spring assembly 10 and seal 11, and then improve
The life-span of instrument overall work and security reliability.
Preferably, the volume variable quantity of the first chamber A is equal with the volume variable quantity of the second chamber B.Pass through
The structure of optimization design splined section and the structure of driving piston 12, first chamber A volume variable quantity and the second chamber can be made
Room B volume variable quantity is equal.Volume change and second chamber B volume due to chamber A change in the opposite direction, so can be with
The liquid for making to suck and breathe out each other is mutually compensated for, and the inside and outside drilling fluid of outer barrel 4 is breathed in drilling process by exhaling so as to realize
Sucker C micrometeor or zero delivery exchanges, and avoids the erosion to spiracle C, improves the safe to use and life-span of instrument.
In addition, dished spring assembly 10 is additionally provided with described second chamber B, and the performance parameter of the dished spring assembly 10
And preload size is adjustable.Driving piston 12 is connected through a screw thread with vibration mandrel 1 and dished spring assembly 10 is preloaded,
Driving piston 12 can be adjusted during use according to live actual condition with vibrating the relative position of mandrel 1, to the property of disc spring group 10
Energy parameter and pre-load size are set.
Preferably, the volume variable quantity of the first chamber A and second chamber B are equal to the dished spring assembly 10
Volume change.Due to sending out the volume in first chamber A and second chamber B when driving piston 12 drives dished spring assembly 10 to move
Changing, and the change of the volume produces by the change of the volume of dished spring assembly 10, it is therefore desirable to design dished spring assembly 10
Volume change is equal to the volume variable quantity in first chamber A and second chamber B, so as to further realize Drilling vibration instrument
100 inside and outside micrometeors or zero delivery exchange.
In embodiment as depicted, sealing ring 6 and sealing ring 8 are additionally provided with the upper and lower ends of the floating piston 7.By
Transmitted in the change of gas in first chamber A and second chamber B by floating piston 7, and need to ensure the first chamber
Volume Changes in room A and second chamber B are equal, therefore just higher to the sealing requirements of floating piston 7, in floating piston 7
Upper and lower ends set sealing ring 6 and sealing ring 8, and the upper and lower ends of floating piston 7 can be made not produce the phenomenon of leakage or gas leakage, from
And improve the efficiency of pistons work.Further, since O-shaped rubber seal be applied to hydropneumatic system and various plant equipment and
Component, preferable sealing function can be played under different liquid or gas medium, static or motion state, therefore sealed
Circle 6 and sealing ring 8 can select O-shaped rubber seal.
In the Drilling vibration generating tool 100, produced using the hydraulic pressure pulse generating unit from tool exterior
Periodic pressure pulse, the pressure differential between periodically-varied tool interior drilling liquid pressure and mineshaft annulus between pressure,
Change the hydraulic action for acting on the driving upper and lower ends of piston 12, the vibration heart is driven under hydraulic coupling and spring force collective effect
Axle 1 moves back and forth.During actual use, pulse and frequency that first can be according to required for applying working condition come setting means, and
Determine tool mounting position apart from the position of drilling bit according to the pre-load of bottomhole assembly situation and disc spring group 10.
Present invention is mainly applied to extended reach well, Horizontal Well Drilling well construction in oil drilling, also available for geological prospecting, water
The drilling well underground construction in the fields such as Wenshui well, underground heat.In construction, drilling vibration generating tool 100 is added to and is oriented to horse
Up in BHA, periodically gently shaken using being connected to pressure pulse caused by the high frequency pulse generator of its underpart and producing
It is dynamic so that BHA produces axial vibration, and static friction is changed into dynamic friction.So, it is possible to reduce slipping drilling and rotation
Friction during drilling between the borehole wall and drilling rod, improve load transfer, prolong so as to improve rate of penetration and extended reach well, horizontal well
Ability is stretched, and efficiently solves the unmanageable problem of tool-face.In addition, drilling vibration generating tool 100 also has
Safe to use, long working life, the features such as destroying will not be produced to drill bit or other drilling tools.
It should be noted that foregoing example is only for the purpose of explanation, and it is not construed as limiting the present invention.Although
According to exemplary embodiment, invention has been described, it being understood, however, that used herein is descriptive and explanation
The language of property, rather than restricted language.In presently described and modification scope of the following claims, do not departing from
In the scope of scope and spirit of the present invention, the present invention can be changed.Although here according to specific mode, material
Invention has been described with embodiment for material, but the present invention is not limited in details disclosed herein；On the contrary, the present invention can expand
Open up structure, the methods and applications of all identical functions for example within the scope of the appended claims.
Claims (8)
1. a kind of Drilling vibration generating tool, including：
It is sequentially connected and each there is the outer barrel, breathing outer barrel and disc spring outer barrel of hollow cavity, disc spring is provided with disc spring outer barrel
Component,
The vibration mandrel that the outer barrel is penetrated with breathing outer barrel and is extended in the hollow cavity of the disc spring outer barrel, described
The free end in disc spring outer barrel of vibration mandrel is connected with driving piston,
Wherein, block piece is set between the inwall of the vibration mandrel and the breathing outer barrel；
The vibration mandrel is connected with outer barrel by spline, and is also formed with first chamber in spline join domain；
The vibration mandrel, breathing outer barrel, disc spring outer barrel and driving piston collectively define closed second chamber, described the
Filled with hydraulic oil in two chambers.
2. Drilling vibration generating tool according to claim 1, it is characterised in that the connection end of the block piece and outer barrel
The distance between be equal to vibrate mandrel vibratility adjustment.
3. Drilling vibration generating tool according to claim 1, it is characterised in that the block piece includes two circumferential phases
The half-watt in the vibration mandrel is bound round over the ground.
4. Drilling vibration generating tool according to claim 1, it is characterised in that in the vibration mandrel and the breathing
It is additionally provided with floating piston between the inwall of outer barrel, and the breathing outer barrel is provided with being formed in the block piece and described floating
The spiracle of chamber between piston.
5. Drilling vibration generating tool according to claim 1, it is characterised in that the volume variable quantity of the first chamber
It is equal with the volume variable quantity of the second chamber.
6. Drilling vibration generating tool according to claim 5, it is characterised in that the first chamber and second chamber
Volume variable quantity is equal to the volume change of the dished spring assembly.
7. Drilling vibration generating tool according to claim 1, it is characterised in that the dished spring assembly is located at second chamber
It is interior, and the performance parameter of the dished spring assembly and preload size are adjustable.
8. Drilling vibration generating tool according to claim 4, it is characterised in that the upper and lower ends of the floating piston are equal
Provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253798.0A CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410253798.0A CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105134081A CN105134081A (en) | 2015-12-09 |
| CN105134081B true CN105134081B (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410253798.0A Active CN105134081B (en) | 2014-06-09 | 2014-06-09 | Drilling vibration generating tool |
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| CN (1) | CN105134081B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888554B (en) * | 2016-05-23 | 2018-02-16 | 宝鸡市远深石油设备新技术有限公司 | Surge and push away multiple shock oscillator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2236540C1 (en) * | 2002-12-30 | 2004-09-20 | Габдрахимов Наиль Мавлитзянович | Vibrating means for well drilling |
| CN200940449Y (en) * | 2006-08-21 | 2007-08-29 | 贵州高峰石油机械有限责任公司 | Mechanical hydraulic shock absorber |
| CN202883880U (en) * | 2012-09-28 | 2013-04-17 | 中国石油化工股份有限公司 | Drill column axial vibration anti-dragging tool driven by motor |
| CN103742076B (en) * | 2014-01-02 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | axial vibrator |
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| CN105134081A (en) | 2015-12-09 |
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