CN103774983B - Jetting type torsional impact drilling tool - Google Patents
Jetting type torsional impact drilling tool Download PDFInfo
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- CN103774983B CN103774983B CN201310726252.8A CN201310726252A CN103774983B CN 103774983 B CN103774983 B CN 103774983B CN 201310726252 A CN201310726252 A CN 201310726252A CN 103774983 B CN103774983 B CN 103774983B
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Abstract
The present invention relates to a kind of jetting type torsional impact drilling tool.Jetting type torsional impact drilling tool comprises: top connection, shell body, float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, block stamp, impact transmission cylinder, spring; Top connection is fixedly connected with shell body, and surgery body is fixed with impact transmission cylinder, and float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, spring are positioned at shell body, and block stamp is located at and impacts in transmission cylinder.The present invention adopts attachment element to produce alternately jetting flow block stamp and swings, and block stamp collision impact transmission cylinder makes DTOR produce fluctuation; Compared with conventional drilling mode, improve shaft bottom torque-on-bit average, and make bottomhole moment of torsion in the fluctuation of drilling process medium-high frequency high-amplitude, reduce drill bit stick-slip phenomenon, decrease the possibility that bit bouncing occurs, improve drilling efficiency; This drilling tool movable part is little, and few easy workout part, normal working life is long, and security reliability is strong.
Description
Technical field
The invention belongs to petroleum works field, particularly, relate to a kind of by the torsional pulse drilling rig structure that fluidic generation left and right replaces jet, promotion block stamp swings collision impact transmission cylinder, particularly relate to a kind of jetting type torsional impact drilling tool.
Background technology
Along with country's being on the increase petroleum gas demand, the oil and gas well drilling degree of depth is always in continuous prolongation.The hardpan run in drilling process and bad ground get more and more, and the DTOR of conventional drilling mode can not meet the requirement of efficient drilling well, improve DTOR and drilling speed in the urgent need to a kind of New well drilling Method and kit for.Practice shows, torsional pulse drilling technology effectively can increase the fluctuation of DTOR, improves the peak value of moment of torsion, thus increases substantially drill bit efficiency of breaking rock, raising drilling speed.
Wall-attachment bistable fluidic is a kind of left and right efficiently alternately jet flow generating apparatus, this element is at rotating drilling instrument (number of patent application: be used widely 200810050991.9), demonstrate its reliability in underground work, but be also never applied on torsional impact drilling tool.
Current domestic existing torsional impact drilling tool mainly contains two kinds of configuration and principle: the torsional impact drilling tool (patent No.: 200910058083.9) use screw rod to provide power of Southwest Petrol University, ratchet structure complexity is easy to wear, affects the down-hole real work life-span; The instrument of punching (number of patent application: 201010511421.2) mainly utilize drilling fluid high-low pressure region to change and drive block stamp to swing generation torsional pulse is turned round by triumph drilling well institute, structure is comparatively complicated loaded down with trivial details, more life-span and the reliability that have impact on instrument of moving component.
Summary of the invention
For making up the deficiency of existing drilling technology, the invention provides a kind of jetting type torsional impact drilling tool, the drilling fluid jet that this instrument is replaced about being produced by fluidic, promote block stamp swing impact impact transmission cylinder, and then cause torque-on-bit to fluctuate, realize increasing DTOR peak value, weaken shaft bottom stick-slip phenomenon and finally improve efficiency of breaking rock.
For achieving the above object, the present invention adopts following proposal:
Jetting type torsional impact drilling tool, comprising: top connection, shell body, float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, block stamp, impact transmission cylinder, spring; Top connection is fixedly connected with shell body, and surgery body is fixed with impact transmission cylinder, and float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, spring are positioned at shell body, and block stamp is located at and impacts in transmission cylinder; Top connection, shell body, impact transmission cylinder transmission conventional drilling the pressure of the drill and moment of torsion also protect inner element; Float valve, spring and valve seat flow distribution plate are shunted automatically according to drilling fluid total flow, ensure that the flow participating in jet and impact process is substantially constant; About fluidic produces, alternately high-frequency and high-voltage jet enters the cavity impacted in transmission cylinder; The block stamp impacted in transmission cylinder cavity swings generation collision impact under drilling fluid replaces jet propulsion, impacts transmission cylinder and impact force and the pressure of the drill, moment of torsion are delivered to drill bit.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts attachment element to produce alternately jetting flow block stamp to swing, and block stamp collision impact transmission cylinder makes DTOR produce fluctuation, is a kind of brand-new torsional pulse drilling theory and instrument.
2, this instrument drilling well is compared with conventional drilling mode, improves shaft bottom torque-on-bit average, and makes bottomhole moment of torsion in the fluctuation of drilling process medium-high frequency high-amplitude, reduces drill bit stick-slip phenomenon, decreases the possibility that bit bouncing occurs, improve drilling efficiency.
3, the alternately jet change frequency of fluidic is high, flow velocity large, and the accelerated motion of block stamp is more abundant, and consequent percussion is faster stronger, improves the action effect of torsional pulse.
4, flow-limiting valve can regulate opening degree automatically according to mud flow rate, ensures that jet flow is basicly stable, avoids the excessive erosion to fluidic.
5, this drilling tool movable part is little, and few easy workout part, normal working life is long, and security reliability is strong.In drilling process, this instrument does not have particular/special requirement to ground installation, well drilling pipe column, bite type, and the operation construction of constructor is identical with conventional drilling, is conducive to popularization and the use of instrument.
Accompanying drawing explanation
Fig. 1 is the structural representation (main sectional view) of jetting type torsional impact drilling tool of the present invention;
Fig. 2 is valve seat manifold structure schematic diagram;
Fig. 3 is fluidic structure complete section schematic diagram;
Fig. 4 is that fluidic structure partly cuts open schematic diagram;
Fig. 5 is A-A generalized section in Fig. 1;
Fig. 6 is B-B generalized section in Fig. 1;
Fig. 7 is that the structure of impacting transmission cylinder partly cuts open schematic diagram;
Fig. 8 is the structural representation impacting transmission cylinder;
In figure: 1, top connection, 2, shell body, 3, float valve, 4, valve seat flow distribution plate, 5, fluidic, 6, jet flow distribution plate, 7, block stamp, 8, impact transmission cylinder, 9, spring.
Detailed description of the invention
As shown in Figure 1, jetting type torsional impact drilling tool, comprising: top connection 1, shell body 2, float valve 3, valve seat flow distribution plate 4, fluidic 5, jet flow distribution plate 6, block stamp 7, impact transmission cylinder 8, spring 9.Top connection 1 is fixedly connected with shell body 2, and surgery body 2 is fixed with impact transmission cylinder 8, and float valve 3, valve seat flow distribution plate 4, fluidic 5, jet flow distribution plate 6, spring 9 are positioned at shell body 2, and block stamp 7 is located at and impacts in transmission cylinder 8; Top connection 1, shell body 2, impact transmission cylinder 8 and transmit conventional drilling the pressure of the drill and moment of torsion and the element protecting inside; Float valve 3, spring 9 and valve seat flow distribution plate 4 are shunted automatically according to drilling fluid total flow, ensure that the flow participating in jet and impact process is substantially constant; About fluidic 5 produces, alternately high-frequency and high-voltage jet enters the cavity impacted in transmission cylinder 8; The block stamp 7 impacted in transmission cylinder 8 cavity swings generation collision impact under drilling fluid replaces jet propulsion, impacts transmission cylinder 8 and impact force and the pressure of the drill, moment of torsion are delivered to drill bit.
As shown in Figure 1, top connection 1 upper end is provided with internal thread, and this internal thread is drill collar conventional internal thread; Top connection 1 lower end is provided with external screw thread, and be drilling fluid runner in the middle of top connection 1, drilling fluid runner lower end is taper surface.
As shown in Figure 1, shell body 2 is hollow cylinder housing, and shell body 2 upper end is provided with internal thread, and surgery body 2 is by the internal thread of upper end and the external screw thread compact siro spinning technology of top connection 1; Shell body 2 lower end is zigzag; Shell body 2 is provided with upper screwed hole, middle screwed hole, lift bearing threads hole, lift bearing installation groove and sealing ring mounting groove from top to bottom.
As shown in Figure 1, float valve 3 is hollow arrow-like floating valve, and top is taper surface, and middle part is thick cylinder, and bottom is thin cylinder, and float valve 3 center is drilling fluid runner; The taper surface on float valve 3 top matches with the taper surface of top connection 1 lower end.
As shown in Figure 1 and Figure 2, valve seat flow distribution plate 4 top is hollow cylinder 41, bottom is slabbed construction; Dull and stereotyped 42 centers are provided with jet orifice, and before and after dull and stereotyped 42, both sides are milled a part, and mill part as drilling fluid flow manifold, the arc surface of dull and stereotyped both sides is provided with screwed hole 43.Upper pin 21 enters valve seat flow distribution plate screwed hole 43 through the upper screwed hole of shell body 2, is tightly fixed on shell body 2 by valve seat flow distribution plate 4.The thin cylinder jacket of float valve 3 has spring 9, and spring 9 and float valve 3 are located in the hollow cylinder 41 of valve seat flow distribution plate 4, and the lower surface of spring 9 is supported on the flat board 42 of valve seat flow distribution plate 4; The diameter of the thick cylinder of float valve 3 is slightly less than the internal diameter of hollow cylinder 41, and float valve 3 can slide up and down in hollow cylinder 41, and drilling fluid channelling can not occur; The jet orifice of valve seat flow distribution plate 4 communicates with the drilling fluid runner of float valve 3.
As shown in Figure 1, Figure 3 and Figure 4, wall-attachment bistable fluidic 5 is flat structure, and upper end is provided with rectangular jet entrance 51, and fluidic 5 front face is provided with front outlet opening 52, rear surface is provided with rear outlet opening 53; Be provided with left avertence heart jet runner 54 on the left of lower end, right side is provided with right avertence heart jet runner 55, the cross section of left avertence heart jet runner, right avertence heart jet runner is rectangle; Front outlet opening 52, rear outlet opening 53 are communicated with left avertence heart jet runner 54, right avertence heart jet runner 55 respectively.Wall-attachment bistable fluidic 5 is prior art, technology maturation be widely applied (articles of reference: Yang Yongyin, the design [J] of wall-attachment bistable fluidic, Hydraulics and pneumatics in other industry, 2010 (2), 62-64).Flat board 42 lower surface of wall-attachment bistable fluidic 5 upper surface and valve seat flow distribution plate realizes sealing by plane jam-packed, and jet inlet 51 communicates with the jet orifice at valve seat flow distribution plate 4 center.
As shown in Figure 1, shown in Figure 5, jet flow distribution plate 6 is circular flat plate structure, and both sides, circular dull and stereotyped front and back respectively mill a part, mill part as drilling fluid flow manifold; The both sides of plate center are respectively equipped with left jet orifice 61, right jet orifice 62, and left jet orifice 61, right jet orifice 62 are rectangle; The left and right sides arc surface of jet flow distribution plate 4 flat board is provided with screwed hole, and middle pin 22 enters fluidic plate screwed hole through the middle screwed hole of shell body 2, fluidic plate 6 is tightly fixed on shell body 2.
Left jet orifice 61, the right jet orifice 62 of jet flow distribution plate 6 communicate with left avertence heart jet runner 54, right avertence heart jet runner 55 respectively; Jet flow distribution plate 6 realizes sealing by plane jam-packed with fluidic 5.
As shown in Fig. 1, Fig. 7, Fig. 8, impact transmission cylinder 8 top is thin cylinder, bottom is thick cylinder; Impact in transmission cylinder 8 and be provided with dark cylinder 87 and lower dark cylinder 89, upper dark cylinder 87 and lower dark cylinder 89 are separated by the flat board 88 at middle part; Thick cylindrical end face is profile of tooth 85, impacts transmission cylinder 8 and realizes staggered cooperation by this profile of tooth 85 and the tooth-shape structure of shell body 2 bottom; The bottom of lower dark cylinder 89 is provided with drill bit box 86, impacts transmission cylinder 8 and is connected with the pin thread of drill bit by drill bit box 86.
Impact the thin cylindrical both sides excision on transmission cylinder 8 top, cut position and become drilling fluid runner, the lower end of this drilling fluid runner is communicated with lower dark cylinder by runner breach 83, and drilling fluid enters lower dark cylinder 89 by runner breach 83 by the both sides impacting transmission cylinder 8, and then flow into drill bit.
Be provided with between shell body 2 bottom and the thin cylinder impacting transmission cylinder 8 and lift bearing 23 and sealing ring 24.Lift bearing 23 is made up of ball bearing, after entering, enters the lift bearing groove of shell body and impacts the groove 84 of transmission cylinder from the lift bearing threads stopple of shell body 2, by the lift bearing threads hole on lift bearing pin shutoff shell body 2.Sealing ring 24 is O type circle or the sealing of car formula, is arranged in the sealing ring mounting groove on shell body 2.Lift bearing 23 and sealing ring 24 ensure that sealing and the integrality of instrument.
Impacting transmission cylinder 8 top is smooth flat, and fan-shaped and two rectangles form by one for the horizontal cross-sectional shape of upper dark cylinder 87, and two rectangles are positioned at the fan-shaped left and right sides, as two ears; All walls of upper dark cylinder 87 all coated with hard alloys polishing smooth; Impact the upper surface of transmission cylinder 8 and the lower surface of jet flow distribution plate 6 and realize sealing by plane jam-packed.
Block stamp 7 is made up of a small cylinder and little fan-shaped cylinder (as shown in Figure 6); The upper and lower end face coated with hard alloy of block stamp 7 also polishes smooth, and two circular arc side coated with hard alloys of block stamp 7 also polish smooth.
As shown in Fig. 1, Fig. 6, block stamp 7 is positioned at dark cylinder 87, and the length of block stamp 7 is more smaller than the degree of depth of upper dark cylinder 87, and block stamp 7 upper surface contacts with jet flow distribution plate 6 but without compression, and lower surface contacts with dull and stereotyped 88 but without compression; Upper dark cylinder 87 is divided into left jet chamber 81, right jet chamber 82 by block stamp 7, and left jet chamber 81, right jet chamber 82 communicate with left jet orifice 61, right jet orifice 62 respectively; The smooth abrasion-proof arc surface of block stamp 12 contacts with the wall impacting dark cylinder 87 on transmission cylinder but without compression; Block stamp 7 can swing in dark cylinder 87 on impact transmission cylinder, and two arcuate profile ensures can not depart from center in block stamp 7 swing process, and the fluid in swing process in left jet chamber 81, right jet chamber 82 can not channelling.
When wellbore construction, be connected on drill collar by jetting type torsional impact drilling tool top by top connection 1 upper end box, bottom connects drill bit by the drill bit box 86 impacting transmission cylinder 8.The pressure of the drill moment of torsion of conventional drilling is delivered to top connection 1 from drill collar and is delivered to shell body 2 again; Passed to by height fluctuating tooth-shape structure 85 again and impact transmission cylinder 8, be finally delivered on drill bit.
After drilling fluid enters top connection 1 inner flow passage, a part enters the surrounding of valve seat flow distribution plate cylinder 41 and the both sides, front and back of dull and stereotyped 42, and a part enters float valve 3 center becomes jet power fluid.Drilling fluid impacts the upper surface of float valve 3 and hydraulic coupling is delivered to spring 9, mud flow rate is larger, impact force is larger, the decrement of spring 9 is larger, the gap of float valve 3 taper surface and top connection 1 taper surface is larger, the flow that drilling fluid is diverted to outside valve seat flow distribution plate cylinder 41 is larger, and flowing into float valve 3 inside, to participate in the flow of jet acting substantially constant, this guarantees normal operating parameters and the working life of the substantially constant and percussion tool of the jet parameters of fluidic 5.
After jet drilling fluid enters float valve 3 center, enter fluidic entrance 51 by the plate center hole of valve seat flow distribution plate 4; Produce one-sided wall-attachment fluidic at the eccentric runner place of fluidic 5, fluidic 5 regulates jet deflection direction automatically according to drilling fluid mobility status and block stamp 8 motion conditions, therefore automatically produces the eccentric jet that left and right alternately deflects.
Suppose that now eccentric jet flows into jet orifice 61 on the left of jet flow distribution plate 6 from left avertence heart jet runner 54, then enter the left jet chamber 81 impacting transmission cylinder 8, after fluid enters left jet chamber 81, promote the wall that block stamp 7 deflection rushes at right jet chamber 82; The hydraulic pressure fluctuation produced when impacting right jet chamber 82 wall is experienced by fluidic 5, fluidic 5 regulates jet direction to turn to right avertence heart jet runner 55 automatically, eccentric jet enters right side jet orifice 62, then enters the impact right jet chamber 82 of transmission cylinder 8, thus promotion block stamp 7 swings to the left; Now left jet chamber 81 inner fluid is discharged by fluidic left bank outlet 52, and the liquid of discharge, with other drilling fluid mixed, is finally entered in drill bit by the runner breach 83 and lower dark cylinder 89 impacting transmission cylinder 8.
When left side cavity 81 inner fluid drains, block stamp 7 collides left side wall, jet direction deflects into left avertence heart jet runner 54 again, left side jet enters promotion block stamp in left jet chamber 81 and starts to swing to the right and discharge drilling fluid in right jet chamber 82, and then block stamp 12 and right jet chamber 82 wall collide and impact.
In the process, left jet chamber 81, right jet gun 82 collision with wall of block stamp 7 and impact transmission cylinder 8 impact and constantly occur, jet direction constantly left and right conversion, block stamp 7 does not stop to carry out swinging and produces wall and impacts, the collision impact produced constantly is delivered to drill bit by impacting transmission cylinder 8, causes fluctuation and the raising of torque-on-bit.
In this instrument drilling process, do not have particular/special requirement to ground installation, well drilling pipe column, bite type, the operation construction of constructor is identical with conventional drilling, is conducive to popularization and the use of instrument.
Claims (7)
1. a jetting type torsional impact drilling tool, comprising: top connection, shell body, float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, block stamp, impact transmission cylinder, spring; It is characterized in that: top connection is fixedly connected with shell body, shell body is fixed with impact transmission cylinder, and float valve, valve seat flow distribution plate, fluidic, jet flow distribution plate, spring are positioned at shell body, and block stamp is located at and impacts in transmission cylinder; Top connection, shell body, impact transmission cylinder transmission conventional drilling the pressure of the drill and moment of torsion also protect inner element; Float valve, spring and valve seat flow distribution plate are shunted automatically according to drilling fluid total flow, ensure that the flow participating in jet and impact process is substantially constant; About fluidic produces, alternately high-frequency and high-voltage jet enters the cavity impacted in transmission cylinder; The block stamp impacted in transmission cylinder cavity swings generation collision impact under drilling fluid replaces jet propulsion, impacts transmission cylinder and impact force and the pressure of the drill, moment of torsion are delivered to drill bit;
Top connection upper end is provided with internal thread, and this internal thread is drill collar conventional internal thread; Top connection lower end is provided with external screw thread, and be drilling fluid runner in the middle of top connection, drilling fluid runner lower end is taper surface;
Shell body is hollow cylinder housing, and shell body upper end is provided with internal thread, and shell body is by the internal thread of upper end and the external screw thread compact siro spinning technology of top connection; Shell body lower end is zigzag; Shell body is provided with upper screwed hole, middle screwed hole, lift bearing threads hole, lift bearing installation groove and sealing ring mounting groove from top to bottom;
Float valve is hollow arrow-like floating valve, and top is taper surface, and middle part is thick cylinder, and bottom is thin cylinder, and float valve center is drilling fluid runner; The taper surface on float valve top matches with the taper surface of top connection lower end.
2. jetting type torsional impact drilling tool according to claim 1, is characterized in that: valve seat flow distribution plate top is hollow cylinder, bottom is slabbed construction; Plate center is provided with jet orifice, and before and after dull and stereotyped, both sides are milled a part, and mill part as drilling fluid flow manifold, the arc surface of dull and stereotyped both sides is provided with screwed hole; Upper pin enters valve seat flow distribution plate screwed hole through the upper screwed hole of shell body, is tightly fixed on shell body by valve seat flow distribution plate; The thin cylinder jacket of float valve has spring, and spring and float valve are located in the hollow cylinder of valve seat flow distribution plate, and the lower surface of spring is supported on the flat board of valve seat flow distribution plate; The diameter of the thick cylinder of float valve is slightly less than the internal diameter of hollow cylinder, and the jet orifice of valve seat flow distribution plate communicates with the drilling fluid runner of float valve.
3. jetting type torsional impact drilling tool according to claim 2, it is characterized in that: described fluidic is wall-attachment bistable fluidic, wall-attachment bistable fluidic is flat structure, upper end is provided with rectangular jet entrance, and fluidic front face is provided with front outlet opening, rear surface is provided with rear outlet opening; Be provided with left avertence heart jet runner on the left of lower end, right side is provided with right avertence heart jet runner, the cross section of left avertence heart jet runner, right avertence heart jet runner is rectangle; Front outlet opening, rear outlet opening respectively with left avertence heart jet runner, right avertence heart jet flow passage; The dull and stereotyped lower surface of wall-attachment bistable fluidic upper surface and valve seat flow distribution plate realizes sealing by plane jam-packed, and jet inlet communicates with the jet orifice at valve seat flow distribution plate center.
4. jetting type torsional impact drilling tool according to claim 3, is characterized in that: jet flow distribution plate is circular flat plate structure, and both sides, circular dull and stereotyped front and back respectively mill a part, mill part as drilling fluid flow manifold; The both sides of plate center are respectively equipped with left jet orifice, right jet orifice, and left jet orifice, right jet orifice are rectangle; The left and right sides arc surface of jet flow distribution plate flat board is provided with screwed hole, and middle pin enters fluidic plate screwed hole through the middle screwed hole of shell body, fluidic plate is tightly fixed on shell body; The left jet orifice of jet flow distribution plate, right jet orifice communicate with left avertence heart jet runner, right avertence heart jet runner respectively; Jet flow distribution plate and fluidic realize sealing by plane jam-packed.
5. jetting type torsional impact drilling tool according to claim 4, is characterized in that: impact transmission cylinder top is thin cylinder, bottom is thick cylinder; Impact in transmission cylinder and be provided with dark cylinder and lower dark cylinder, upper dark cylinder and lower dark cylinder are by the flat plate separation at middle part; Thick cylindrical end face is profile of tooth, impacts transmission cylinder and realizes staggered cooperation by this profile of tooth and the tooth-shape structure of shell body bottom; The bottom of lower dark cylinder is provided with drill bit box, impacts transmission cylinder and is connected with the pin thread of drill bit by drill bit box;
Impact the thin cylindrical both sides excision on transmission cylinder top, cutting position becomes drilling fluid runner, and the lower end of this drilling fluid runner is communicated with lower dark cylinder by runner breach;
Be provided with between shell body bottom and the thin cylinder impacting transmission cylinder and lift bearing and sealing ring; Lift bearing is made up of ball bearing, after entering, enters the lift bearing groove of shell body and impacts the groove of transmission cylinder from the lift bearing threads stopple of shell body, by the lift bearing threads hole on lift bearing pin shutoff shell body; Sealing ring is O type circle or the sealing of car formula, is arranged in the sealing ring mounting groove on shell body.
6. jetting type torsional impact drilling tool according to claim 5, is characterized in that:
Impacting transmission cylinder top is smooth flat, and fan-shaped and two rectangles form by one for the horizontal cross-sectional shape of upper dark cylinder, and two rectangles are positioned at the fan-shaped left and right sides, all walls of upper dark cylinder all coated with hard alloys polishing smooth; Impact the upper surface of transmission cylinder and the lower surface of jet flow distribution plate and realize sealing by plane jam-packed;
Block stamp is made up of a small cylinder and little fan-shaped cylinder; The upper and lower end face coated with hard alloy of block stamp also polishes smooth, and two circular arc side coated with hard alloys of block stamp also polish smooth.
7. jetting type torsional impact drilling tool according to claim 6, is characterized in that:
Block stamp is positioned at dark cylinder, and the length of block stamp is more smaller than the degree of depth of upper dark cylinder, and block stamp upper surface contacts with jet flow distribution plate but without compression, and lower surface contacts with flat board but without compression; Upper dark cylinder is divided into left jet chamber, right jet chamber by block stamp, and left jet chamber, right jet chamber communicate with left jet orifice, right jet orifice respectively; The smooth abrasion-proof arc surface of block stamp contacts with the wall impacting dark cylinder on transmission cylinder but without compression; Block stamp can swing in dark cylinder on impact transmission cylinder.
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| CN201310726252.8A CN103774983B (en) | 2013-12-25 | 2013-12-25 | Jetting type torsional impact drilling tool |
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| CN201310726252.8A CN103774983B (en) | 2013-12-25 | 2013-12-25 | Jetting type torsional impact drilling tool |
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| CN103774983B true CN103774983B (en) | 2015-11-11 |
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| CN105484670B (en) * | 2014-10-11 | 2017-12-26 | 中国石油化工股份有限公司 | Drilling speed device |
| CN104612593B (en) * | 2014-12-03 | 2017-09-29 | 徐梓辰 | A kind of jetting type twisting drag reduction oscillator |
| CN104727748B (en) * | 2015-04-13 | 2017-11-03 | 北京沃客石油工程技术研究院 | A kind of jetting type twisting drag reduction oscillator |
| CN105317380B (en) * | 2015-07-03 | 2017-08-08 | 河南焦煤能源有限公司科学技术研究所 | A kind of variable-flow bores and rushes unitary nozzle |
| CN108166921B (en) * | 2016-12-07 | 2019-10-11 | 中国石油天然气集团公司 | Drill hammer |
| CN108798500B (en) * | 2017-04-28 | 2024-05-03 | 中石化石油工程技术服务有限公司 | Hydraulic impact device for power drilling tool |
| CN107676034A (en) * | 2017-09-19 | 2018-02-09 | 西迪技术股份有限公司 | A kind of high-abrasive material and torsion impact device |
| CN107795282B (en) * | 2017-11-21 | 2023-10-27 | 中南大学 | Double control channel pulse jet ball tooth drill bit |
| CN107939293B (en) * | 2017-12-19 | 2024-04-05 | 中南大学 | Downhole pressure pulse generator |
| CN108590507B (en) * | 2018-05-29 | 2023-07-18 | 西南石油大学 | Rock breaking accelerating tool with hammer rod reciprocating self-impact structure |
| CN110761707B (en) * | 2018-07-27 | 2021-08-20 | 中石化石油工程技术服务有限公司 | Air-impact-proof twisting and punching tool |
| CN109351443B (en) * | 2018-12-02 | 2024-02-27 | 北京协同创新食品科技有限公司 | High-pressure jet nozzle and high-pressure jet crushing device using same |
| CN110905419B (en) * | 2019-12-23 | 2021-06-11 | 中国石油大学(华东) | Petroleum drilling tool |
| CN114754028B (en) * | 2022-03-01 | 2022-12-06 | 清华大学 | Feed liquid extraction device and feed liquid extraction method |
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| FI103825B (en) * | 1998-03-17 | 1999-09-30 | Tamrock Oy | Method and apparatus for controlling drilling in a rock drill |
| US9038744B2 (en) * | 2008-06-06 | 2015-05-26 | Coil Tubing Technology, Inc. | Jet hammer |
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