CN105525868B - A kind of pulsating double direction impulse device - Google Patents
A kind of pulsating double direction impulse device Download PDFInfo
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- CN105525868B CN105525868B CN201410508277.5A CN201410508277A CN105525868B CN 105525868 B CN105525868 B CN 105525868B CN 201410508277 A CN201410508277 A CN 201410508277A CN 105525868 B CN105525868 B CN 105525868B
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Abstract
The invention discloses a kind of pulsating double direction impulse device, pulsating double direction impulse device, including housing actuating unit and beater mechanism, wherein：It is shaft coupling, central shaft, spring, sliding sleeve and dash valve that beater mechanism, which includes, the radial direction by-pass prot that central shaft is provided with two annular grooves are connected up and down built in housing, central shaft bottom constitutes axial sliding fit by spline group and dash valve and is connected, dash valve is located under housing in annular groove together with the spring above it, and sliding sleeve is located at dash valve lower end on dash valve and constitutes impact cooperation with convex edge in annular groove under housing.The pulsating double direction impulse device can produce axial impact and torsional pulse double action simultaneously, axial impact coordinates with torsional pulse, drill string axial vibration can be triggered to reduce slipping drilling frictional resistance, reduce differential sticking risk, increase the pressure of the drill, weaken de- pressure influence, the instantaneous cutting force of drill bit can be improved again, stick slip vibration is prevented.Also have the advantages that it is simple in construction, easy to operate, be easily installed, it is safe and reliable.
Description
Technical field
The present invention relates to oil and gas well drilling, CBM Drilling, geological prospecting, mine probing industry special equipment neck
Domain, especially a kind of pulsating double direction impulse device.
Background technology
With the fast development increasingly increased with drilling technology of oil-gas field development difficulty, deep-well, ultradeep well, big displacement
The quantity of the complex structural wells such as well, long horizontal sections horizontal well, multilevel branch well is growing day by day, but the quick drill of deep hard formation
It is still one of the key technology bottleneck for restricting drilling speed to enter, wherein PDC drill bit have that drilling speed is high, cost is low, manufacturing process into
Ripe the features such as, certain positive role is served in drilling speed, day has been obtained in the drilling process of all kinds well
Benefit is widely applied, but due to the influence of the factors such as well type, formation rock characteristic, is bored without PDC drill bit height is played completely
The technical advantage of speed.（1）In deep-well, ultradeep well, stick slip vibration is also easy to produce when boring hard formation, drill bit bit bouncing, moment of torsion is raised, when
Raise rock when to a certain extent before brill tooth to be cut off, the energy quick release of drill bit and drill string savings, drill bit instantaneously adds
The fast several times to rated speed, stick slip vibration not only reduces rate of penetration, damages Cutter, reduces drill bit and drill string is used
In the life-span, drillstring twistoff is also easily caused, the underground complex accident for causing drilling tool to come off；（2）In extended reach well, long horizontal sections level
In the complex structural wells such as well, drill string lies low in shaft bottom, and frictional resistance is big, and the de- pressure of drill bit is serious, and efficiency of breaking rock is substantially reduced, and
In slide drilling, drill string does not rotate, and easily occurs differential sticking accident.
Theoretical research shows with practical application, can if applying certain frequency and the ballistic work of amplitude on drill bit
The cutting power of drill bit is effectively improved, there is positive role for improving bit speed.The patent No. 200910058083.9,
201310014444.6th, 201020567011.5 it is described in detail, and design specialized churn drilling tools, it can also therefrom see
Go out, the special churn drilling tools of design can only produce torsional pulse, the function without axial impact；And with axial impact function
Drilling tool can not produce torsional pulse again.If can apply axial impact on drill bit simultaneously in drilling process to rush with reversing
Two kinds of kinetic energy are hit, then can be significantly increased the rate of penetration and service life of drill bit, the stability of drill string is improved, gets out to meet and sets
The high-quality well of technical requirements is counted, the need for meeting oil-gas field development.
The content of the invention
The purpose of the present invention is that only possess torsional pulse or the deficiency present in axial impact for prior art, is proposed
One kind produces axial impact and torsional pulse simultaneously on drill bit, and simple in construction, dependable performance, control accuracy are high, operation side
Just pulsating double direction impulse device.
The technical solution adopted for the present invention to solve the technical problems is：
Pulsating double direction impulse device, including housing 1, actuating unit 2 and beater mechanism, wherein：Above and below being provided with housing 1
Two annular grooves, actuating unit 2 is drilling tool screw pump and is located on housing in annular groove；The beater mechanism is in actuating unit
Central shaft 7 is connected by shaft coupling 3 on output shaft, central shaft 7 is the hollow structure that lower end carries check valve 14, and central shaft 7 is leaned on
Nearly upper and lower end portion is respectively equipped with and the built-in radial direction by-pass prot 4 and 12 that two annular grooves are connected up and down of housing 1, the bottom of central shaft 7
Axial sliding fit is constituted by spline group 9 and dash valve 8 to be connected, dash valve 8 is located under housing 1 together with the spring 6 above it
In annular groove, dash valve 8 is provided with is opened and closed in the sliding sleeve 13 coordinated, housing 1 two annulars up and down with 7 times by-pass prots of central shaft 12
Protruding parts between groove constitutes rotatory sealing with central shaft 7 and coordinated, and the top of dash valve 8 is constituted with central shaft 7 and housing 1 respectively
The sealing that slides axially coordinates, and the lower end of dash valve 8 constitutes impact with convex edge in 1 time annular groove of housing and coordinated.
Such scheme further comprises：
The lower end of dash valve 8 is inclined-plane with convex edge impact mating surface in 1 time annular groove of housing.
Convex edge constitutes impact by upper impact block 15 and lower impact block 16 respectively and matched somebody with somebody in 1 time annular groove of dash valve 8 and housing
Close, and upper impact block 15 and lower impact block 16 use polylith, and the Contact -impact face of upper impact block 15 and lower impact block 16 is
It is inclined.
It is prefabricated by sump pit in upper impact block 15.
The sump pit includes straight trough and skewed slot and arranged by same direction of rotation.
Sealing surface between housing 1 and central shaft 7, between dash valve 8 and housing 1 and central shaft 7 is respectively mounted sealing device
11。
The pulsating double direction impulse device of the present invention can produce axial impact and torsional pulse double action simultaneously, more conventional
Impactor only has that a kind of impulse form is more advanced, and technical advantage becomes apparent from, and field application speed-increasing effect is more notable.In deep-well, surpass
In deep-well, axial impact is acted on simultaneously with torsional pulse, can either be increased the cutting force that instantaneous the pressure of the drill improves drill bit, can be promoted again
Make drillstring vibrations, bit freezing risk is reduced, while stick slip vibration can also be prevented；In complex structural well, axial impact is with reversing
Impact coordinates, and can form drill string axial vibration and reduce slipping drilling frictional resistance, reduce differential sticking risk, be bored while increasing
Head available weight, weakens the adverse effect of de- pressure, the instantaneous cutting force of drill bit can be improved again, stick slip vibration is prevented.Pulsating is double
The axial impact and torsional pulse that are produced to impactor can not only increase drill bit broken rock energy while act on drill bit, and
And contribute to protection drill bit, stable drill string, increase the service life, it is significant to put forward effect for drilling engineering.
Pulsating double direction impulse device also have the advantages that it is simple in construction, easy to operate, be easily installed, it is safe and reliable.To enter
One step improves deep-well, ultradeep well, the rate of penetration of complex structural well, gives full play to the technical advantage of PDC drill bit, extension drill bit and
Drill String Lifespan, meets the requirement that Domestic Oil And Gas Fields Efficient Development puies forward effect, is oil and gas well drilling, coal seam pneumatic drill
The scene of well, geological prospecting, mine probing etc. provides reliably technical guarantee equipment.
Brief description of the drawings
Fig. 1 is according to pulsating double direction impulse device structural representation proposed by the invention.
Fig. 2 is sliding sleeve A-A cross-sectional views in Fig. 1.
Fig. 3 is B-B-section sectional view in Fig. 1.
Fig. 4 is C-C cross-sectional views in Fig. 1.
In figure：1- housings, 2- actuating units, 3- shaft couplings, 4- by-pass prots, 5- sealing devices, 6- springs, 7- central shafts,
8- dash valves, 9- splines group, 10- sealing devices, 11- sealing devices, 12- by-pass prots, 13- sliding sleeves, 14- check valves, on 15-
Impact block, 17- sump pits under impact block, 16-
Embodiment
It is described in detail the present invention below in conjunction with the accompanying drawings.
Exemplary embodiments 1
Such as Fig. 1, actuating unit 2 is arranged on the top inside housing 1, and is connected by shaft coupling 3 with central shaft 7, center
The top of axle 7 processes by-pass prot 4, bottom processing by-pass prot 12, and check valve 14 is installed in the lower end of central shaft 7, housing 1 and central shaft 7 it
Between install sealing device 5, between dash valve 8 and housing 1 install sealing device 11, between dash valve 8 and central shaft 7 install sealing
Device 10, installs spring 6 between dash valve 8 and housing 1, central shaft 7 is connected with dash valve 8 by spline group 9, and sliding sleeve 13 is installed
In the bottom of dash valve 8, upper impact block 15 is arranged on the lower end of dash valve 8, and lower impact block 16 is arranged on the lower end of housing 1, upper impact block
15 processing sump pits 17.Check valve 14 has one-way flow function, and normally closed, only can just be opened when pressure is higher than setting value
Unblank road.
Simplify embodiment 2
On the basis of embodiment 1, following simplified measure can also be made to above-described embodiment.
One is Workpiece Machining Accuracy meeting between housing 1 and central shaft 7, between dash valve 8 and housing 1 and central shaft 7
On the premise of can omit installation sealing device 11.
Two be that directly can constitute impact cooperation using the lower end of dash valve 8 and convex edge in 1 time annular groove of housing and omit
Lower impact block.
Three be sliding sleeve 13 and dash valve 8 can be integrative-structure or Split assembled structure.
Four be that the angle of inclination and direction in upper impact block and lower impact block Contact -impact face is adjusted as needed, with up to
To most preferably impact effect axially and in rotation.
The sump pit of upper impact block 15 has discharge opeing and is oriented to double action.
Pulsating double direction impulse device workflow based on above-described embodiment is：
Between drill string and drill bit, actuating unit 2 uses spiral drilling rig structure, when drilling fluid enters in housing,
Liquid energy is converted to torsion power by actuating unit 2, drives central shaft 7 to rotate by shaft coupling 3, drilling fluid passes through central shaft
7 top by-pass prots 4 enter inside central shaft 7, then reach the lower chamber of dash valve 8 by the bottom by-pass prot 12 of central shaft 7, so
After enter back into drill bit, because drill bit is provided with nozzle, drilling fluid in pressure drop, therefore the lower chamber of dash valve 8 will be produced just
Dash valve 8 can be promoted to move up and compression spring 6, at the same time, the sliding sleeve 13 on dash valve 8 also can be with upward
Mobile, when sliding sleeve 13 closes the moment of 7 bottom by-pass prot of central shaft 12, the drilling fluid in the lower chamber of dash valve 8 is in inertia
Effect is lower to be continued to flow, and enters bore hole annulus by bit nozzle, now the pressure in the lower chamber of dash valve 8 starts reduction,
When pressure is less than the restoring force of spring 6, dash valve 8 is rapidly moving downward under the promotion of spring 6, by installed in lower end
Upper impact block 15 is impacted on the lower impact block of housing lower end, so as to generate axial impact；Because dash valve 8 is with
Heart axle 7 is connected by spline group 9, therefore the rotation of central shaft 7 also can drive dash valve 8 to rotate, so dash valve 8 is vertically
It is also what is rotated while moving up and down, then, also can be to lower impact block 16 when the axial impact of dash valve 8 is to lower impact block 16
The effect of torsional pulse is produced, when dash valve 8 is contacted with lower impact block 16, the bottom by-pass prot 12 of central shaft 7 is opened, drilling fluid
The lower chamber of dash valve 8 is again introduced into, the hydraulic coupling of generation promotes dash valve 8 to move up and compression spring 6, with above-mentioned mistake
Journey is constantly carried out, and is achieved that on drill bit while producing the double action of axial impact and torsional pulse.If spring 6 is damaged
, then can be and when can not provide restoring force and causing dash valve 8 descending, the bottom by-pass prot 12 of central shaft 7 is closed
Produce and build the pressure in drill string, when drilling liquid pressure is raised to a certain extent, the check valve 14 of the lower end of central shaft 7 may turn on, from
And ensure that drilling fluid can reach drill bit, and peripheral passage is formed, now just can be according to conventional drilling construction technology, will not be because of
The damage of internals and pull out of hole, influence drilling efficiency.
Claims (6)
1. pulsating double direction impulse device, including housing（1）, actuating unit（2）And beater mechanism, it is characterised in that：Housing（1）It is interior
Two annular grooves, actuating unit above and below being provided with（2）For drilling tool screw pump and it is located on housing in annular groove；The beater mechanism
It is by shaft coupling on actuating unit output shaft（3）Connect central shaft（7）, central shaft（7）Check valve is carried for lower end（14）
Hollow structure, central shaft（7）It is respectively equipped with and housing close to upper and lower end portion（1）The footpath of built-in two annular groove connections up and down
To by-pass prot（4,12）, central shaft（7）Bottom passes through spline group（9）With dash valve（8）Constitute axial sliding fit connection, impact
Valve（8）Together with the spring above it（6）It is located at housing（1）In lower annular groove, dash valve（8）It is provided with and central shaft（7）Lower side
Through hole（12）It is opened and closed the sliding sleeve coordinated（13）, housing（1）Protruding parts and central shaft between interior two annular grooves up and down（7）Structure
Coordinate into rotatory sealing, dash valve（8）Top respectively with central shaft（7）And housing（1）Composition, which slides axially to seal, to be coordinated, impact
Valve（8）Lower end and housing（1）Convex edge constitutes impact and coordinated in lower annular groove.
2. pulsating double direction impulse device according to claim 1, it is characterized in that：Dash valve（8）Lower end and housing（1）Lower ring
Convex edge impact mating surface is inclined-plane in shape groove.
3. pulsating double direction impulse device according to claim 2, it is characterized in that：Dash valve（8）With housing（1）Lower annular groove
Interior convex edge passes through upper impact block respectively（15）With lower impact block（16）Impact is constituted to coordinate, and upper impact block（15）With lower impact
Block（16）Use polylith, upper impact block（15）With lower impact block（16）Contact -impact face be inclined.
4. pulsating double direction impulse device according to claim 3, it is characterized in that：Upper impact block（15）It is interior prefabricated by discharge opeing
Groove.
5. pulsating double direction impulse device according to claim 4, it is characterized in that：The sump pit includes straight trough and skewed slot is pressed
Same direction of rotation arrangement.
6. according to any described pulsating double direction impulse devices of claim 1-5, it is characterized in that：Housing（1）With central shaft（7）It
Between, dash valve（8）With housing（1）And central shaft（7）Between sealing surface be respectively mounted sealing device（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410508277.5A CN105525868B (en) | 2014-09-28 | 2014-09-28 | A kind of pulsating double direction impulse device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508277.5A CN105525868B (en) | 2014-09-28 | 2014-09-28 | A kind of pulsating double direction impulse device |
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| Publication Number | Publication Date |
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| CN105525868A CN105525868A (en) | 2016-04-27 |
| CN105525868B true CN105525868B (en) | 2017-10-10 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593306A (en) * | 2016-12-28 | 2017-04-26 | 倪红坚 | Multi-dimension impactor |
| CN107420032B (en) * | 2017-05-11 | 2023-07-21 | 能诚集团有限公司 | Impact drilling tool and impact drilling machine with same |
| CN107420031B (en) * | 2017-05-11 | 2023-07-07 | 能诚集团有限公司 | Impact drilling tool and impact drilling machine with same |
| CN112983255B (en) | 2019-12-16 | 2022-02-01 | 中国石油化工股份有限公司 | Drilling tool and method for determining parameters thereof |
| CN113530432B (en) * | 2020-04-17 | 2024-09-17 | 中石化石油工程技术服务有限公司 | Hydraulic impact generator |
| CN117307017B (en) * | 2023-11-29 | 2024-03-29 | 中石化西南石油工程有限公司 | Built-in drill bit type hydraulic impactor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580056A1 (en) * | 1992-07-17 | 1994-01-26 | Smith International, Inc. | Air percussion drilling assembly for directional drillig applications |
| CN101463709A (en) * | 2009-01-08 | 2009-06-24 | 西南石油大学 | Torsional impact drilling tool |
| CN202706904U (en) * | 2012-08-21 | 2013-01-30 | 熊继有 | Hydraulic pulsating impactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08114079A (en) * | 1994-10-18 | 1996-05-07 | Tone Corp | Drilling device |
-
2014
- 2014-09-28 CN CN201410508277.5A patent/CN105525868B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0580056A1 (en) * | 1992-07-17 | 1994-01-26 | Smith International, Inc. | Air percussion drilling assembly for directional drillig applications |
| CN101463709A (en) * | 2009-01-08 | 2009-06-24 | 西南石油大学 | Torsional impact drilling tool |
| CN202706904U (en) * | 2012-08-21 | 2013-01-30 | 熊继有 | Hydraulic pulsating impactor |
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| CN105525868A (en) | 2016-04-27 |
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