CN203594356U - Near-bit torsion and oscillation coupling impactor - Google Patents
Near-bit torsion and oscillation coupling impactor Download PDFInfo
- Publication number
- CN203594356U CN203594356U CN201320737247.2U CN201320737247U CN203594356U CN 203594356 U CN203594356 U CN 203594356U CN 201320737247 U CN201320737247 U CN 201320737247U CN 203594356 U CN203594356 U CN 203594356U
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- impactor
- short circuit
- torsion
- drill bit
- impact
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- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- 230000010355 oscillation Effects 0.000 title abstract 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 37
- 230000003534 oscillatory effect Effects 0.000 claims description 16
- 238000004080 punching Methods 0.000 claims description 15
- 241000237509 Patinopecten sp. Species 0.000 claims description 8
- 235000020637 scallop Nutrition 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000005553 drilling Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 5
- 230000003116 impacting effect Effects 0.000 abstract description 4
- 239000011435 rock Substances 0.000 description 6
- 206010060904 Freezing phenomenon Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012332 laboratory investigation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a near-bit torsion and oscillation coupling impactor which comprises a drill collar pup joint, a shunt, a torsion impactor body, a pulse oscillation cavity and an impact transmission pup joint. The lower portion of the drill collar pup joint is connected with the impact transmission pup joint, and the inner periphery of the drill collar pup joint is provided with the shunt, the torsion impactor body and the pulse oscillation cavity. A lower end opening of the shunt is communicated with an inlet of the torsion impactor body, and an outlet of the torsion impactor body is communicated with an inlet of the pulse oscillation cavity. An outlet of the pulse oscillation cavity is communicated with the impact transmission pup joint, and a pressure relief flow channel and an impact channel are formed in the torsion impactor body. The near-bit torsion and oscillation coupling impactor has the advantages that due to the fact that periodical, stable, high-frequency and low-amplitude torsion and vibration coupling impact vibration is generated, and the impact torque effectively eliminates the phenomenon of stick slip and intermittent drilling clamping of a PDC drill bit. The impactor is not provided with an electronic component, a complete hydraulic mechanical structure is adopted, the size is small, and interference to an electric measuring instrument while drilling will not be generated in the impacting process of the near-bit torsion and oscillation coupling impactor. The near-bit torsion and oscillation coupling impactor is small in number of damageable parts, stable in work, long in service life and capable of easily reducing the well drilling cost.
Description
Technical field
The utility model relates to the well dynamic instrument of a kind of oil, the use of gas drilling engineering field, particularly relates to a kind of nearly drill bit torsion, Oscillatory Coupling impactor.
Background technology
Deep or super deep formation formation hardness are large, and drillability level value is high, and rate of penetration is slow, drilling cost is high.In the drilling well recovery process of oil, natural gas, well dynamic auxiliary rock instrument has become the useful of deep formation efficient rock-breaking technology and has supplemented.Field practice and in-house laboratory investigation show, drill bit are applied to the impact force of some cycles, will improve the efficiency of breaking rock of drill bit, and therefore percussion drilling tool is expected to become an important technical of deep-well speed-raising.
In the time using PDC drill bit to creep into above-mentioned stratum, can produce stick-slip effect, intermittent bit freezing phenomenon.This stick-slip effect, intermittent bit freezing phenomenon make the irregular release of elasticity of torsion energy of accumulation in drill string, cause the rock break-off process of PDC drill bit to become extremely unstable, accelerate the improper damage of PDC drill bit, have reduced PDC drilling life of bit.
Conventional hydraulic impacter belongs to axial impact, can not increase the broken rock moment of torsion of PDC drill bit, as patent CN200710056325.1 has described a kind of jet flow type shocker.
In order to improve the problem such as stick-slip effect, intermittent bit freezing of deep well mechanical drilling speed, solution PDC drill bit, promote PDC drill bit steady operation, extend the application life of drill bit, patent US6742609B2 has designed the turbo-driven reverse impactor of a kind of drilling fluid, but this drilling tool complex structure, easily worn part are many and press consumption larger, and be also restricted application life.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of can eliminate PDC drill bit in hard stick-slip, the nearly drill bit torsion of intermittent bit freezing, the Oscillatory Coupling impactor occurring during to hard formation or the broken rock of abrasive layer.
The technical scheme that the utility model adopts is: a kind of nearly drill bit reverses, Oscillatory Coupling impactor, comprises drill collar short circuit, current divider, reverse impactor, impulse hunting chamber and impact transmission short circuit; The bottom of described drill collar short circuit is connected with impact transmission short circuit, in described drill collar short circuit, current divider, reverse impactor and impulse hunting chamber is installed week, and described current divider lower port communicates with reverse impactor entrance; Reverse impactor outlet communicates with the entrance in impulse hunting chamber, and the outlet of impulse hunting chamber communicates with impact transmission short circuit; On described reverse impactor, be formed with pressure release runner and impact runner.
Described reverse impactor comprises upper press cover, impactor shell and joint ring; Described upper press cover be arranged on impactor shell above, the two is the inner fluid power impulse chamber that forms after connecting; Impactor outer casing inner wall is formed with axisymmetric punching groove, half slot and pressure hole; Described impulse hunting chamber comprises conflux nozzle and backflow plug; The nozzle that confluxes is arranged on air deflector lower end, center, enters into impulse hunting chamber from impactor fluid out from the nozzle that confluxes, and flows out from backflow plug centre bore.
Described fluid power impulse chamber is provided with fluid operated hammer, commutator, center air deflector and throttle nozzle; Commutator is arranged between center air deflector and fluid operated hammer, and throttle nozzle is arranged on air deflector exit, center; Fluid operated hammer external surface is formed with axisymmetric hammer anvil, and hammer anvil is positioned at the punching groove of impactor shell; Fluid operated hammer inner surface is formed with axisymmetric reversing key, and reversing key extend in the reversing groove of commutator; There are hammer anvil hole and commutation keyhole at hammer anvil and reversing key both sides; Described commutator external surface has axial symmetry scallop and reversing groove, has axial symmetry transitional pore in scallop, and relief hole is arranged at commutator bottom.
Described impact runner is communicated and forms successively by threaded hole, hammer anvil hole, punching groove, and punching groove communicates with relief hole through hammer anvil hole, and relief hole communicates with reverse impactor outlet; Described pressure release runner is communicated and forms successively by pressure hole, reversing groove, commutation keyhole, half slot, and described half slot communicates with reverse impactor outlet.
Described center air deflector is made up of threaded hole and base, and base is connected on pressure release support ring, and pressure release support ring is connected to and impacts transmission short circuit top.
Described reverse impactor, impulse hunting chamber, impact transmission short circuit are positioned on drill collar short circuit by location slips.
Described drill collar short circuit upper end pin thread is connected with top drill collar box end by API standard thread.
Described impact transmission short circuit lower end is connected with drill bit pin end by API standard thread.
The beneficial effects of the utility model: owing to producing periodically stable high frequency torsion, Oscillatory Coupling impact shock by a narrow margin, therefore, this impulsive torque is effectively eliminated stick-slip and the intermittent bit freezing phenomenon of PDC drill bit, and the vibration axial impact loading that instrument produces can improve drill teeth wedging rock, accelerate landwaste disengaging shaft bottom.This impactor does not have electronic unit, hydraulic machine structure completely, and size is less, and its impact process can be to not producing interference with boring Electrical Measuring Instrument.This instrument can guarantee the stable and balance of drill string internal torque in drilling process, has reduced drill string and has reversed concussion, is conducive to MWD, LWD etc. with the steady operation that bores Electrical Measuring Instrument.The utility model easily worn part is few, working stability, and long service life, is conducive to reduce drilling cost.This impactor can produce periodically stable high frequency torsion, Oscillatory Coupling impact shock by a narrow margin, is a kind of multi-functional, multipurpose impactor.
Accompanying drawing explanation
Fig. 1 is that the nearly drill bit of the utility model reverses, the structural representation of Oscillatory Coupling impactor;
Fig. 2 is the A-A sectional view in Fig. 1;
Fig. 3 is the B-B sectional view in Fig. 1;
Fig. 4 is the C-C sectional view in Fig. 1;
Fig. 5 is the D-D sectional view in Fig. 1.
In figure
1. drill collar pipe nipple 2. current divider 3. screw thread platen 4. upper cover body
5. impactor shell 6. fluid operated hammer 7. commutator 8. throttle nozzles
9. the nozzle 10. that confluxes impacts transmission short circuit 11. backflow plugs
12. center air deflector 13. joint ring 14. tap hole 15. high pressure runners
20. half slot 21. reversing groove 22. pressure hole 23. scallop
24. transitional pore 25. hammer anvil 26. hammer anvil hole 27. punching grooves
28. relief holes 29. are located slips 30. exterior bayonet slot 31. spring eyes
32. inner card cages.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, the nearly drill bit of the utility model reverses, Oscillatory Coupling impactor comprises drill collar short circuit 1, current divider 2, reverse impactor, impact transmission short circuit 10, drill collar short circuit 1 upper end pin thread is connected with top drill collar box end by API standard thread, the lower end of drill collar short circuit 1 is connected with impact transmission short circuit 10 gaps with location slips 29, between drill collar short circuit 1 inner top side portion and impact transmission short circuit 10, current divider 2, impulse hunting chamber and reverse impactor is installed.
The Multicarity structure that wherein reverse impactor is made up of jointly screw thread platen 3, upper cover body 4, impactor shell 5, fluid operated hammer 6, commutator 7, throttle nozzle 8 and joint ring 13.
As shown in Figure 2, current divider 2 is V-arrangement funnel-shaped parts, and current divider 2 lower port communicate with the entrance of reverse impactor, and connected mode, for being threaded, is distributed with 6 tap holes 14 in current divider 2 upper ends; Drilling fluid fluid is divided into inside and outside two strands by current divider, the direction of flow high pressure runner 15 of outside, and flow in the reversing groove 21 in commutator 7 by pressure hole 22, commutation keyhole 19, uninterruptedly give commutator feed flow; All the other internal flows are to center air deflector 12 feed flows.
As shown in Figure 3, Figure 4, the upper cover body 4 of reverse impactor is on impactor shell 5, the two is the inner fluid power impulse chamber that forms after connecting, fluid power impulse chamber is provided with fluid operated hammer 6, commutator 7, center air deflector 12, throttle nozzle 8, between commutator 7 Tao center air deflectors 12 and fluid operated hammer 6, throttle nozzle 8 is arranged on center air deflector 12 exits, fluid operated hammer 6 is installed with impactor shell 5 gaps, between joint ring 13, commutator 7 and impactor shell 5, do cyclic movement, commutator 7 does cyclic movement at joint ring 13,12 of center air deflectors; The upper and lower axle of fluid operated hammer 6 is arranged on impactor shell 5.Impactor shell 5 inwalls have axial symmetry punching groove 27, half slot 20 and pressure hole 22; Fluid operated hammer 6 external surfaces have axisymmetric hammer anvil 25, and inner surface has axisymmetric reversing key 19, have hammer anvil hole 26 and commutation keyhole 18 at hammer anvil 25 and reversing key 19 both sides; Commutator 7 external surfaces have axial symmetry scallop 23 and reversing groove 21, have axial symmetry transitional pore 24 in scallop 23, and relief hole 28 is arranged at commutator 7 bottoms; Center air deflector 12 is made up of grid shape hole 17, relief hole 28 and base, and its base is connected on impactor shell 5, and the nozzle that confluxes is arranged in the base of center air deflector 12, is threaded; Pressure release passage is communicated and forms successively by pressure hole 22, reversing groove 21, commutation keyhole 18, half slot 20, and the relief hole 28 of half slot 20Yu center air deflector 12 communicates; Impact runner and communicated and form successively by grid shape hole 17, hammer anvil hole 26, punching groove 27 and the current by pass 16 of center air deflector 12, punching groove 27 communicates with current by pass 16 through hammer anvil hole 26, and the relief hole 28 of current by pass 16Yu center air deflector 12 communicates.Impulse hunting chamber has the nozzle of confluxing 9, impactor shell 5 lower ends and backflow plug 11 jointly to form, and enters into vibration chamber, and flow out from backflow plug centre bore from impactor fluid out from the nozzle that confluxes.
As shown in Figure 5, on impact transmission short circuit 10, exterior bayonet slot 30 is corresponding with inner card cage 32 positions and number on drill collar short circuit 1, and location slips 29 is installed in draw-in groove, in the slips of location, has spring eye 31, mounting spring between spring eye 31 and exterior bayonet slot 30.
In the utility model reverse impactor when work,, the drill collar of rotation drives drill collar short circuit 1 to rotate, and the inner card cage 32 of drill collar short circuit 1 lower end is by location slips 29 and impact transmission short circuit 10 gaps and be connected, and impact transmission short circuit 10 is connected with drill bit and drives bit; Fluid enters into current divider 2 from the inlet opening of drill collar short circuit 1, and shunting in air deflector 2, and fluid enters center current divider 12 by impactor shell 5, and all the other flow to from the tap hole 14 of current divider 2 space that current divider 2 and drill collar short circuit 1 form; By center air deflector 12, to impactor exit portion, internal flow can be divided into two parts: a part of fluid by the throttle nozzle 8 of center air deflector 12 out, directly to the nozzle that confluxes; The flow through transitional pore 24 of scallop 23 of commutator 7 of the grid shape hole 17 of another part fluid in center air deflector 12 enters hammer anvil hole 26, finally enter into punching groove 27, and finally enter into relief hole 28 from punching groove 27 by hammer anvil hole 26, this part fluid and front two parts fluid converge in impactor outlet, to the nozzle place of confluxing; All fluids enter into impulse hunting chamber and impact transmission short circuit 10, then enter annular space space through bit nozzle; In impact runner, under the acting in conjunction of fluid and commutation runner fluid, the collaborative hammer anvil 25 of having realized of fluid operated hammer 6, commutator 7 and impactor shell repeatedly moves in punching groove 27, generation torsional pulse, and pass to drill bit by impacting transmission short circuit 10.
It is worthy of note, protection domain of the present utility model is not limited to above-mentioned instantiation mode, needs only those of ordinary skills without process creative work, and the embodiment that can associate all belongs to protection domain of the present utility model.
Claims (8)
1. nearly drill bit torsion, an Oscillatory Coupling impactor, is characterized in that: comprise drill collar short circuit (1), current divider (2), reverse impactor, impulse hunting chamber and impact transmission short circuit (10); The bottom of described drill collar short circuit (1) is connected with impact transmission short circuit (10), and interior week of described drill collar short circuit (1) is provided with current divider (2), reverse impactor and impulse hunting chamber, and described current divider (2) lower port communicates with reverse impactor entrance; Reverse impactor outlet communicates with the entrance in impulse hunting chamber, and the outlet of impulse hunting chamber communicates with impact transmission short circuit (10); On described reverse impactor, be formed with pressure release runner and impact runner.
2. nearly drill bit torsion according to claim 1, Oscillatory Coupling impactor, is characterized in that: described reverse impactor comprises upper press cover (4), impactor shell (5) and joint ring (13); Described upper press cover (4) be arranged on impactor shell (5) above, the two is the inner fluid power impulse chamber that forms after connecting; Impactor shell (5) inwall is formed with axisymmetric punching groove (27), half slot (20) and pressure hole (22); Described impulse hunting chamber comprises the nozzle that confluxes (9) and backflow plug (11); The nozzle (9) that confluxes is arranged on center air deflector (12) lower end, enters into impulse hunting chamber from impactor fluid out from the nozzle that confluxes (9), and flows out from backflow plug (11) centre bore.
3. nearly drill bit torsion according to claim 2, Oscillatory Coupling impactor, is characterized in that: described fluid power impulse chamber is provided with fluid operated hammer (6), commutator (7), center air deflector (12) and throttle nozzle (8); Commutator (7) is arranged between center air deflector (12) and fluid operated hammer (6), and throttle nozzle (8) is arranged on center air deflector (12) exit; Fluid operated hammer (6) external surface is formed with axisymmetric hammer anvil (25), and hammer anvil (25) is positioned at the punching groove (27) of impactor shell (5); Fluid operated hammer (6) inner surface is formed with axisymmetric reversing key (19), and reversing key (19) extend in the reversing groove (21) of commutator (7); There are hammer anvil hole (26) and commutation keyhole (18) at hammer anvil (25) and reversing key (19) both sides; Described commutator (7) external surface has axial symmetry scallop (23) and reversing groove (21), has axial symmetry transitional pore (24) in scallop (23), and relief hole (28) is arranged at commutator (7) bottom.
4. nearly drill bit torsion according to claim 1, Oscillatory Coupling impactor, it is characterized in that: described impact runner is by threaded hole (17), hammer anvil hole (26), punching groove (27) formation that communicates successively, punching groove (27) communicates with relief hole (28) through hammer anvil hole, and relief hole (28) communicates with reverse impactor outlet; Described pressure release runner is by pressure hole (22), reversing groove (21), commutation keyhole (18), half slot (20) formations that communicate successively, and described half slot (20) exports and communicates with reverse impactor.
5. nearly drill bit torsion according to claim 2, Oscillatory Coupling impactor, it is characterized in that: described center air deflector (12) is made up of threaded hole (17) and base, it is upper that base is connected to pressure release support ring (9), and pressure release support ring (9) is connected to and impacts transmission short circuit (10) top.
6. nearly drill bit torsion according to claim 1, Oscillatory Coupling impactor, is characterized in that: described reverse impactor, impulse hunting chamber, impact transmission short circuit (10) are positioned on drill collar short circuit (1) by location slips (29).
7. nearly drill bit torsion according to claim 1, Oscillatory Coupling impactor, is characterized in that: described drill collar short circuit (1) upper end pin thread is connected with top drill collar box end by API standard thread.
8. nearly drill bit torsion according to claim 1, Oscillatory Coupling impactor, is characterized in that: described impact transmission short circuit (10) lower end is connected with drill bit pin end by API standard thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320737247.2U CN203594356U (en) | 2013-11-20 | 2013-11-20 | Near-bit torsion and oscillation coupling impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320737247.2U CN203594356U (en) | 2013-11-20 | 2013-11-20 | Near-bit torsion and oscillation coupling impactor |
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| Publication Number | Publication Date |
|---|---|
| CN203594356U true CN203594356U (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320737247.2U Withdrawn - After Issue CN203594356U (en) | 2013-11-20 | 2013-11-20 | Near-bit torsion and oscillation coupling impactor |
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| CN (1) | CN203594356U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628815A (en) * | 2013-11-20 | 2014-03-12 | 中国石油集团渤海钻探工程有限公司 | Near-bit torsion and oscillation coupling impactor |
| CN105735892A (en) * | 2016-02-23 | 2016-07-06 | 山东国岳金刚石制品有限公司 | Shock-absorption type high-frequency torque impacter |
| CN109973019A (en) * | 2019-04-23 | 2019-07-05 | 西南石油大学 | PDC bit with longitudinal-torsional coupling impact function |
| CN114427343A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Dead zone starting drive is prevented to hydraulic torsion impacter |
-
2013
- 2013-11-20 CN CN201320737247.2U patent/CN203594356U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628815A (en) * | 2013-11-20 | 2014-03-12 | 中国石油集团渤海钻探工程有限公司 | Near-bit torsion and oscillation coupling impactor |
| CN103628815B (en) * | 2013-11-20 | 2016-03-30 | 中国石油集团渤海钻探工程有限公司 | A kind of nearly drill bit reverses, Oscillatory Coupling impactor |
| CN105735892A (en) * | 2016-02-23 | 2016-07-06 | 山东国岳金刚石制品有限公司 | Shock-absorption type high-frequency torque impacter |
| CN105735892B (en) * | 2016-02-23 | 2018-02-23 | 山东国岳金刚石制品有限公司 | Shock absorbing type high frequency torsion impact device |
| CN109973019A (en) * | 2019-04-23 | 2019-07-05 | 西南石油大学 | PDC bit with longitudinal-torsional coupling impact function |
| CN114427343A (en) * | 2020-09-28 | 2022-05-03 | 中国石油化工股份有限公司 | Dead zone starting drive is prevented to hydraulic torsion impacter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140514 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |