CN103670269A - Turbine torsional impact generator - Google Patents
Turbine torsional impact generator Download PDFInfo
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- CN103670269A CN103670269A CN201310698227.3A CN201310698227A CN103670269A CN 103670269 A CN103670269 A CN 103670269A CN 201310698227 A CN201310698227 A CN 201310698227A CN 103670269 A CN103670269 A CN 103670269A
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Abstract
The invention discloses a turbine torsional impact generator. The turbine torsional impact generator comprises a switching connector, an outer shell, a turbine, a fixed shaft, a transmission sleeve, an impact claw, an impact frame, a transmission shaft and a drill bit sleeve, wherein the switching connector is connected to the upper end of the outer shell, the drill bit sleeve is connected to the lower end of the outer shell, a turbine rotor is fixed to the fixed shaft, a turbine stator is fixed to the outer shell, the fixed shaft is matched with the transmission sleeve through splines, the transmission sleeve is fixed to the upper end of the impact frame, an end cover is arranged at the lower end of the impact frame, the transmission shaft is arranged on the transmission sleeve and the end cover, and the impact claw is arranged on the impact frame. The turbine drives the fixed shaft to rotate, the fixed shaft drives the transmission sleeve to rotate through the splines, the transmission sleeve stirs the impact claw, the impact claw drives the impact frame to rotate at a high speed, the impact claw and the transmission sleeve act on and periodically impact on the transmission shaft in the rotating process so that high-frequency torsional impact can be formed, the transmission shaft transmits the obtained high-frequency impact energy to the drill bit sleeve, and the drill bit sleeve drives a drill bit to impact on stratum rock in a pulse mode. According to the turbine torsional impact generator, large impact energy can be achieved, and the use ratio of torsional impact energy is high.
Description
Technical field
The present invention relates to improve in oil and gas exploration and development process the instrument of deep hard formation bit speed, specifically relate to a kind of turbine torsional pulse generator.
Background technology
The trend current, China's land oil-gas exploration and development presents from east to west and develops to deep & ultra-deep well, meanwhile, marine oil and gas exploration and development progressively turns to deep-sea by Hai Yu shallow sea, beach.Along with oil-gas exploration is progressively to deep formation and the development of territory, deep-sea, drill-well operation faces ground environment and the drilling process difficult problem becoming increasingly complex, and exploration exploitation difficulty continues to increase.In the drilling process of deep & ultra-deep well, along with the increase of well depth, formation hardness and plasticity increase, and abrasiveness strengthens, drillability variation, and the vibration of lower drilling tool stick-slip is violent.The stick-slip oscillation phenomenon of drilling tool not only causes rate of penetration to reduce, and also may cause the generation of down-hole accident, has a strong impact on the carrying out of oil-gas exploration and development.
Torsional pulse drilling well is a kind of emerging efficient drilling technology, and it grows up based on slowing down the stick-slip vibration that even suppresses lower drilling tool just.Torsional pulse drilling well refers to sets up a torsional impact drilling tool for provide high frequency periodically by a narrow margin to turn round to the drilling technology impacting to drill bit on the basis of conventional drilling above PDC drill bit.The periodical high-frequency that impactor produces drill bit is impacted, and can significantly reduce or eliminate the stick-slip vibration of PDC drill bit, when improving rate of penetration, can protect drill bit, extends bit life, reduces the number of times that makes a trip, and effectively reduces drilling cost.
At present, although the torsion impactor of existence can be realized the torsional pulse of high frequency, there are a lot of defects, such as, the design of (1) impact structure is unreasonable, causes single strike work little, and the secondary life-span of impact is not high; (2) there is not energy-storage travelling wave tube, make to turn round that to rush capacity usage ratio lower; (3) existing torsion impactor self is without stabilizer; (4) turbo blade Profile Design is unreasonable, and drilling fluid energy transformation ratio is low, causes turning round that to rush tool work performance not good.
Summary of the invention
For above defect, the present invention has designed a kind of turbine torsional pulse generator.
The technology used in the present invention solution is:
A kind of turbine torsional pulse generator, comprise crossover sub, shell, turbine, dead axle, drive sleeve, impact claw, impact frame, power transmission shaft and drill holder, shell upper end coupling adapter, shell lower end connects drill holder, and turbine rotor is fixed on dead axle, turbine stator is fixed on shell, dead axle and drive sleeve are by spline fitted, and drive sleeve is arranged on impacts frame upper end, impacts frame lower end end cap is installed, power transmission shaft is arranged on drive sleeve and end cap, and impact claw is arranged on and impacts on frame, dead axle lower end is provided with block plate, is provided with side runner on dead axle, and drilling fluid is in crossover sub enters shell, the turbine of flowing through arrives block plate, returns to dead axle side runner on then, converges to the sprue of dead axle, then through drive sleeve, enter power transmission shaft, continue to flow into drill holder downwards, drilling fluid starts turbine, turbine rotor High Rotation Speed, drive dead axle High Rotation Speed, dead axle drives drive sleeve rotation, in drive sleeve, offer U-shaped mouth, impact claw comprises square department, dog clutch portion and connecting portion, square department matches with U-shaped mouth, connecting portion is cylindrical, on impact frame, be provided with bar-shaped trough, the connecting portion of impact claw snaps in bar-shaped trough, impact claw can be with respect to impacting frame small angle rotation, on power transmission shaft, be provided with the dog clutch groove matching with dog clutch portion, when rotating, drive sleeve stirs impact claw square department by U-shaped mouth, drive impact claw and impact frame and rotate, the periodic impact transmission shaft of impact claw.
Preferably, uniform four stiff stability devices on side wall of outer shell, described stiff stability device is elongated helical blade type.
Preferably, described crossover sub one end is for connecting the pin thread of drill collar, the pin thread that the other end is connected with outer casing; Shell upper end is the box of coupling adapter, and shell lower end is evenly equipped with the shell spline of four 45 degree, forms the shell spline of four 45 degree; On drill holder, have the spline of four 40 degree to be arranged around on drill holder end face, form the drill holder spline of four 50 degree, shell spline and drill holder spline form matched in clearance.
Preferably, described dead axle bottom is provided with shoulder, and side is provided with semicircle bar shaped boss, steel bushing is installed on top, and turbine rotor is located by shoulder, boss and steel bushing, and platen is arranged on steel bushing, the two is for being slidably connected, and end cap and dead axle are threaded connection turbine rotor is fixed on dead axle; Locate by positioning sleeve described turbine stator bottom, and locating collar seat is on block plate, and block plate seat is in the enclosure on the shoulder of wall, and turbine stator top is fixed on shell by platen and crossover sub.
Preferably, on described outer casing inner wall, offer groove, fixing pressure-loaded bearing in groove, described impact frame end lid and drive axle seat are on pressure-loaded bearing.
Preferably, described power transmission shaft and drill holder are threaded connection, on drill holder, offer square trench, in groove, lay two anti-lost back-up rings of semicircle annular, in shell lower end, circumferentially offer four screwed holes, in screwed hole, pack anti-lost screw rod into, anti-lost back-up ring and anti-lost screw rod are threaded connection.
Useful technique effect of the present invention is:
(1) appropriate design of the present invention torsional pulse structure, realizing under the prerequisite of large impact energy, energy-storage travelling wave tube impacts the torque energy that frame can produce turbine in twice impact interval and store, and upper, discharges completely while once impacting, thereby improve in interval, turns round the utilization rate of rushing energy;
(2) the present invention carries stabilizer in enclosure design, when speed-raising is beaten soon, can also play anti-oblique effect, guarantees wellbore quality;
(3) the present invention arranges easy-to-dismount anti-lost back-up ring and anti-lost screw rod in shell lower end, when power transmission shaft drill holder is threaded, drill holder is played to dual fail-safe effect, has improved the safety of drilling well;
(4) favorable working performance of the present invention, energy transformation ratio is high, long service life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and the specific embodiment, the invention will be further described:
Fig. 1 is structural principle schematic diagram of the present invention;
Fig. 2 is the A-A view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the C-C view of Fig. 1;
Fig. 5 is the D-D view of Fig. 1;
Fig. 6 is the E-E view of Fig. 1;
Fig. 7 is external structure schematic diagram of the present invention;
Fig. 8 is the F-F view of Fig. 7;
Fig. 9 is the G-G view of Fig. 7;
Figure 10 is turbine stator blade profile figure;
Figure 11 is turbine rotor blade profile figure;
Figure 12 is the structural representation of drive sleeve;
Figure 13 is the structural representation of impact claw;
Figure 14 is for impacting the structural representation of frame;
Figure 15 is the structural representation of power transmission shaft.
In figure: 1-crossover sub, 2-shell, 3-turbine rotor, 4-turbine stator, 5-dead axle, 6-drive sleeve, 7-impact claw, 701-square department, 702-dog clutch portion, 703-connecting portion, 8-impacts frame, 801-bar-shaped trough, 9-power transmission shaft, 901-dog clutch groove, 902-transition portion, 10-drill holder, 11-shell spline, 12-drill holder spline, 13-steel bushing, 14-gland, 15-end cap, 16-positioning sleeve, 17-block plate, 18-platen, 19-dead axle side runner, 20-U shape mouth, 21-pressure-loaded bearing, the anti-lost back-up ring of 22-, the anti-lost screw rod of 22-, 24-stiff stability device.
The specific embodiment
By reference to the accompanying drawings, a kind of turbine torsional pulse generator, is mainly comprised of crossover sub 1, shell 2, turbine rotor 3, turbine stator 4, dead axle 5, drive sleeve 6, impact claw 7, impact frame 8, power transmission shaft 9 and drill holder 10.
Crossover sub 1 one end is for connecting the pin thread of drill collar, and the other end is the pin thread of connected with outer casing 2.The box that shell 2 upper ends are coupling adapter, shell 2 lower ends are evenly equipped with the shell spline 11 of four 45 degree, form the housing spline of four 45 degree.On drill holder 10, have the drill holder spline 12 of four 40 degree to be arranged around on drill holder end face, form the drill holder spline of four 50 degree, shell spline 11 forms matched in clearance with drill holder spline.
Turbine rotor 3 is fixed on dead axle 5, dead axle 5 bottoms are provided with shoulder, side is provided with semicircle bar shaped boss, steel bushing 13 is installed on top, turbine rotor 3 is located by shoulder, boss and steel bushing, platen 18 is arranged on steel bushing, and the two is for being slidably connected, and end cap 15 and dead axle are threaded connection turbine rotor 3 is fixed on dead axle 5.
Turbine stator 4 is fixed on shell 2.Locate by positioning sleeve 16 turbine stator 4 bottoms, and 16 of positioning sleeves are on block plate 17, and 17 of block plates, on the shoulder of shell 2, then are fixed on shell 2 by platen 18 and crossover sub 1.
Dead axle 5 and drive sleeve 6 are by spline fitted, and drive sleeve 6 is arranged on impacts frame 8 upper ends, impacts frame 8 lower ends end cap is installed, and power transmission shaft 9 is arranged on drive sleeve 6 and end cap, and impact claw 7 is arranged on and impacts on frame 8.Dead axle 5 lower ends are provided with block plate 17, and in the middle of block plate 17, the effect of righting positioning sleeve is played in perforate.On dead axle 5, be provided with side runner 19.Drilling fluid is in crossover sub 1 enters shell 2, and the turbine of flowing through arrives block plate 17, returns to dead axle side runner 19 on then, converges to the sprue of dead axle, then through drive sleeve 6, enters power transmission shaft 9, continues to flow into drill holder 10 downwards.
Drilling fluid starts turbine, and turbine rotor 3 High Rotation Speeds drive dead axle 5 High Rotation Speeds, and dead axle 5 drives drive sleeve 6 rotations.In drive sleeve 6, offer U-shaped mouth 21.Impact claw 7 comprises square department 701, dog clutch portion 702 and connecting portion 703, and square department 701 matches with U-shaped mouth 20, and connecting portion 703 is elliptical cylinder-shape.On impact frame 8, be provided with bar-shaped trough 801, the connecting portion 703 of impact claw snaps in bar-shaped trough 801, and impact claw 7 can be with respect to impacting frame 8 small angle rotations.On power transmission shaft 9, be provided with the dog clutch groove 901 matching with dog clutch portion 702, power transmission shaft, when offering dog clutch groove, requires to consider manufacture craft, therefore, has one section of transition portion 902 to meet the path of cutter cutting in part processing and making process.When drive sleeve 6 is rotated, by U-shaped mouth 21, stir impact claw square department 701, drive impact claw 7 and impact frame 8 and rotate, impact claw 7 is the periodic impact transmission shaft 9 of mating reaction with dog clutch groove 901 by dog clutch portion 702.
On shell 2 inwalls, offer groove, fixing pressure-loaded bearing 21 in groove, 9 of described impact frame end lid and power transmission shafts are on pressure-loaded bearing 21.Power transmission shaft 9 and drill holder 10 are threaded connection, on drill holder 10, offer square trench, in groove, lay two anti-lost back-up rings 22 of semicircle annular, in shell lower end, circumferentially offer four screwed holes, in screwed hole, pack anti-lost screw rod 23 into, anti-lost back-up ring 22 and anti-lost screw rod 23 are threaded connection.23 pairs of drill holders of anti-lost back-up ring 22 and anti-lost screw rod play dual fail-safe effect, have improved the safety of drilling well.
Uniform four stiff stability devices 24 on shell 2 lateral walls, described stiff stability device 24 stretches along outer cover length direction, is elongated helical blade type, when speed-raising is beaten soon, can also play anti-oblique effect, guarantees wellbore quality.
The blade profile of above-mentioned turbine rotor 3 and turbine stator 4 is to adopt five order polynomial methods to draw in conjunction with the parameter request calculation optimization of software for calculation and instrument demand, specifically, as shown in Figure 10,11, this turbine rotor and turbine stator blade profile can make the transformation efficiency of energy further promote.
Below the course of work of the present invention is described:
Drill collar drives shell 2 rotations, thereby shell 2 drives drill holder 10 to drive the continuous rotational shear formation rock of drill bit by spline.Simultaneously, drilling fluid is in crossover sub 1 enters turbine torsional pulse generator shell, the runner of flowing through on gland 14 enters turbine, start turbine, turbine rotor 3 High Rotation Speeds, drive dead axle 5 High Rotation Speeds, now drilling liquid flow arrives block plate 19 through turbine, on drilling fluid, return to dead axle side runner 20, converge to the sprue of dead axle, enter drive sleeve 6 and continue to flow downward.Dead axle 5 drives drive sleeve 6 High Rotation Speeds by spline, and drive sleeve 6 is stirred impact claw 7, and impact claw 7 drives and impacts frame 8 High Rotation Speeds, and in rotary course, impact claw 7 and drive sleeve 6 act on also constantly impact transmission shaft 9, form high-frequency percussion.Power transmission shaft 9 is delivered to the high-frequency percussion energy of acquisition on drill holder 10, and drill holder 10 drives drill bit pulsation ground impinge upon earth strata rock; Simultaneously drilling fluid enters into power transmission shaft 9 through drive sleeve 6, continues to flow downward to enter drill holder 10.
The part of not addressing in aforesaid way is taked or is used for reference prior art and can realize.
It should be noted that, under the instruction of this manual, any equivalents that those skilled in the art have done, or obvious variant, all should be within protection scope of the present invention.
Claims (6)
1. a turbine torsional pulse generator, it is characterized in that: comprise crossover sub, shell, turbine, dead axle, drive sleeve, impact claw, impact frame, power transmission shaft and drill holder, shell upper end coupling adapter, shell lower end connects drill holder, turbine rotor is fixed on dead axle, turbine stator is fixed on shell, dead axle and drive sleeve are passed through spline fitted, drive sleeve is arranged on impacts frame upper end, impact frame lower end end cap is installed, power transmission shaft is arranged on drive sleeve and end cap, and impact claw is arranged on and impacts on frame, dead axle lower end is provided with block plate, is provided with side runner on dead axle, and drilling fluid is in crossover sub enters shell, the turbine of flowing through arrives block plate, returns to dead axle side runner on then, converges to the sprue of dead axle, then through drive sleeve, enter power transmission shaft, continue to flow into drill holder downwards, drilling fluid starts turbine, turbine rotor High Rotation Speed, drive dead axle High Rotation Speed, dead axle drives drive sleeve rotation, in drive sleeve, offer U-shaped mouth, impact claw comprises square department, dog clutch portion and connecting portion, square department matches with U-shaped mouth, connecting portion is cylindrical, on impact frame, be provided with bar-shaped trough, the connecting portion of impact claw snaps in bar-shaped trough, impact claw can be with respect to impacting frame small angle rotation, on power transmission shaft, be provided with the dog clutch groove matching with dog clutch portion, when rotating, drive sleeve stirs impact claw square department by U-shaped mouth, drive impact claw and impact frame and rotate, the periodic impact transmission shaft of impact claw.
2. a kind of turbine torsional pulse generator according to claim 1, is characterized in that: uniform four stiff stability devices on side wall of outer shell, described stiff stability device is elongated helical blade type.
3. a kind of turbine torsional pulse generator according to claim 1, is characterized in that: described crossover sub one end is for connecting the pin thread of drill collar, the pin thread that the other end is connected with outer casing; Shell upper end is the box of coupling adapter, and shell lower end is evenly equipped with the shell spline of four 45 degree, forms the shell spline of four 45 degree; On drill holder, have the spline of four 40 degree to be arranged around on drill holder end face, form the drill holder spline of four 50 degree, shell spline and drill holder spline form matched in clearance.
4. a kind of turbine torsional pulse generator according to claim 1, it is characterized in that: described dead axle bottom is provided with shoulder, side is provided with semicircle bar shaped boss, steel bushing is installed on top, turbine rotor is located by shoulder, boss and steel bushing, platen is arranged on steel bushing, and the two is for being slidably connected, and end cap and dead axle are threaded connection turbine rotor is fixed on dead axle; Locate by positioning sleeve described turbine stator bottom, and locating collar seat is on block plate, and block plate seat is in the enclosure on the shoulder of wall, and turbine stator top is fixed on shell by platen and crossover sub.
5. a kind of turbine torsional pulse generator according to claim 1, is characterized in that: on described outer casing inner wall, offer groove, and fixing pressure-loaded bearing in groove, described impact frame end lid and drive axle seat are on pressure-loaded bearing.
6. a kind of turbine torsional pulse generator according to claim 1, it is characterized in that: described power transmission shaft and drill holder are threaded connection, on drill holder, offer square trench, in groove, lay two anti-lost back-up rings of semicircle annular, in shell lower end, circumferentially offer four screwed holes, in screwed hole, pack anti-lost screw rod into, anti-lost back-up ring and anti-lost screw rod are threaded connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698227.3A CN103670269B (en) | 2013-12-18 | 2013-12-18 | Turbine torsional impact generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310698227.3A CN103670269B (en) | 2013-12-18 | 2013-12-18 | Turbine torsional impact generator |
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| CN103670269A true CN103670269A (en) | 2014-03-26 |
| CN103670269B CN103670269B (en) | 2015-05-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888538A (en) * | 2016-04-08 | 2016-08-24 | 西南石油大学 | Torsion impact drilling device |
| CN106499340A (en) * | 2016-11-09 | 2017-03-15 | 西南石油大学 | A kind of fluid power pulse generating unit and its method of operating |
| CN108049803A (en) * | 2018-02-08 | 2018-05-18 | 西南石油大学 | Vane type differential torsion impact device |
| CN108487856A (en) * | 2018-05-23 | 2018-09-04 | 成都奥尤盖茨科技发展有限公司 | A kind of flexible pressurizing torsion generator |
| CN110578469A (en) * | 2019-09-27 | 2019-12-17 | 重庆科技学院 | Drilling tool extending in casing |
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| CN201554363U (en) * | 2009-12-20 | 2010-08-18 | 西南石油大学 | Turbine type torsion impact drilling tool for hard formation |
| CN201778652U (en) * | 2010-09-20 | 2011-03-30 | 西南石油大学 | Low-amplitude and high-frequency torsional pulse generator |
| US20130133909A1 (en) * | 2010-05-25 | 2013-05-30 | Roland Greenwood | Enhanced vibrational or hammering apparatus |
| CN203239230U (en) * | 2013-01-30 | 2013-10-16 | 中国石油天然气集团公司 | Downhole jet flow auxiliary drilling speed increasing device |
| CN203614029U (en) * | 2013-12-18 | 2014-05-28 | 中国石油大学(华东) | Turbine torsional impact generator |
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2013
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090321143A1 (en) * | 2008-06-30 | 2009-12-31 | Center Rock, Inc. | Self-Indexing Down-The-Hole Drill |
| CN201554363U (en) * | 2009-12-20 | 2010-08-18 | 西南石油大学 | Turbine type torsion impact drilling tool for hard formation |
| US20130133909A1 (en) * | 2010-05-25 | 2013-05-30 | Roland Greenwood | Enhanced vibrational or hammering apparatus |
| CN201778652U (en) * | 2010-09-20 | 2011-03-30 | 西南石油大学 | Low-amplitude and high-frequency torsional pulse generator |
| CN203239230U (en) * | 2013-01-30 | 2013-10-16 | 中国石油天然气集团公司 | Downhole jet flow auxiliary drilling speed increasing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888538A (en) * | 2016-04-08 | 2016-08-24 | 西南石油大学 | Torsion impact drilling device |
| CN106499340A (en) * | 2016-11-09 | 2017-03-15 | 西南石油大学 | A kind of fluid power pulse generating unit and its method of operating |
| CN108049803A (en) * | 2018-02-08 | 2018-05-18 | 西南石油大学 | Vane type differential torsion impact device |
| CN108049803B (en) * | 2018-02-08 | 2023-08-08 | 西南石油大学 | Impeller type differential torque impact device |
| CN108487856A (en) * | 2018-05-23 | 2018-09-04 | 成都奥尤盖茨科技发展有限公司 | A kind of flexible pressurizing torsion generator |
| CN110578469A (en) * | 2019-09-27 | 2019-12-17 | 重庆科技学院 | Drilling tool extending in casing |
| CN110578469B (en) * | 2019-09-27 | 2024-03-22 | 重庆科技学院 | Extension drilling tool in sleeve |
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| CN103670269B (en) | 2015-05-06 |
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Effective date of registration: 20160125 Address after: 266555 Qingdao economic and Technological Development Zone, Changjiang Road, No. 66, Shandong Patentee after: China Petroleum University (East China) Patentee after: Sichuan Chuanshi Diamond Bit Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Changjiang Road, No. 66, Shandong Patentee before: China Petroleum University (East China) |