Impact acceleration tool for mechanical anti-jamming drill

Abstract

The invention relates to the technical field of drilling tools, in particular to a mechanical anti-drill-jamming impact acceleration tool which comprises an anti-drill-jamming power assembly, a rotary sealing assembly, a pressure difference control assembly, an impact power assembly and an impact acceleration assembly which are sequentially arranged from top to bottom. The device is reasonable and compact in structure and convenient to use, by arranging the upper bearing assembly, the upper driving shaft independently rotates with the upper driving shell, the upper power shell and the differential pressure shell, movement interference between a drill column above the upper driving shaft and a drilling tool below the differential pressure shell is avoided, and therefore the reaction torque of a drill column system is balanced, and the guide drilling function is achieved; the upper driving shaft and the lower mandrel rotate independently through the rotary sealing assembly, and a flow channel is provided for drilling fluid in a cavity of the hollow rotor; and the pressure drop at the two ends of the hollow rotor is controlled through the pressure difference control assembly, so that the driving torque is controlled, and the device has the characteristics of stability, reliability and good impact effect.

Description

Technical Field

[0001] The invention relates to the technical field of drilling tools and is a mechanical drill-sticking prevention impact speed-up tool. Background Art

[0002] With the continuous expansion of energy development and scientific drilling, the drilling workload of deep and ultra-deep wells on land, deep-water marine drilling, shale oil / gas extraction, hot dry rock geothermal resource development, continental scientific drilling and polar exploration is increasing, the well depth is getting deeper, the formations encountered are older, the rock drillability is poor, and the drilling conditions such as high temperature, high pressure, high density and high corrosion are becoming more and more complex. When encountering complex formations, formations that are prone to collapse and hard rock formations, the traditional drilling method has low drilling efficiency, is prone to stuck drill accidents, has a short drill bit life and a long construction period, so there is an urgent need for speed-up technology for drilling in complex formations.

[0003] As an efficient rock-breaking technology, impact rock breaking has always been a technology that people have focused on to increase speed, reduce costs, and increase efficiency in oil drilling. The increase in well depth leads to more geological eras, greater changes in formations, and complex formation systems; at the same time, affected by formation compaction and metamorphism, the deep formation rocks show characteristics such as high compressive strength and high abrasiveness, which leads to extremely low mechanical drilling speeds in conventional drilling methods. In recent years, domestic and foreign scholars have conducted research on various impact drilling tools and anti-drilling structures in response to the problems of slow drilling speeds, insufficient cutting depth of PDC drill bit teeth, and easy drill sticking in deep and complex formations, and have achieved certain results. However, the traditional anti-drilling structure is complex to implement, has a low success rate, and the impact frequency cannot be adjusted and has certain limitations. Therefore, the development of a mechanical anti-drilling impact speed-up tool with a simple structure, convenient maintenance, and applicable to complex formations in ultra-deep wells is the only means to further achieve speed increases, cost reductions, and efficiency increases.

[0004] The existing unidirectional impact tools and axial-torsion composite impact tools can improve the mechanical drilling speed to a certain extent, but the following technical problems still exist: (1) The existing anti-drilling stuck structure has a complex design, many parts, and complex implementation, which has certain limitations. Therefore, it is urgent to design a speed-up tool with a simple structure and impact speed-up function; (2) The existing impact drilling tools have a complex structure and are often designed with disc springs, piston seals and other structures. These wearing parts have a short life, some parts have high processing precision, and high maintenance costs, resulting in high overall application costs, and the piston seal device is prone to failure in the high temperature environment of ultra-deep wells; (3) Existing impact drilling tools usually contain complex flow channel designs. Summary of the invention

[0005] The present invention provides a mechanical anti-drilling impact speed-up tool, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the problem that the existing impact device has a single impact mode and a complex structure.

[0006] The technical solution of the present invention is achieved through the following measures: a mechanical anti-drilling stuck impact speed-up tool comprises an anti-drilling stuck power assembly, a rotary seal assembly, a pressure difference control assembly, an impact power assembly and an impact speed-up assembly which are arranged in sequence from top to bottom, the anti-drilling stuck power assembly comprises an upper drive shaft, an upper drive housing, an upper bearing assembly, a water cap joint, an upper power housing and an upper power device, an upper drive housing is arranged on the outer side of the middle part of the upper drive shaft, an upper bearing assembly is arranged between the upper drive shaft and the upper drive housing, a water cap joint is fixedly installed on the lower end of the upper drive shaft, an upper power housing is fixedly installed on the outer side of the lower end of the upper drive housing, an upper power device whose upper end is transmission-connected with the water cap joint is arranged in the upper power housing; the rotary seal assembly comprises a center tube, a diverter cone and a rotary seal body, a center tube is fixedly installed on the inner side of the lower end of the upper power device, a rotary seal body located in the upper power housing is fixedly installed on the outer side of the lower end of the center tube, a diverter cone is fixedly installed on the outer side of the center tube corresponding to the position above the rotary seal body, Several flow guide holes that pass through inside and outside; the pressure difference control assembly includes a pressure difference housing, a lower core shaft, a pressure drop component and a lower joint, the pressure difference housing is fixedly installed on the outer side of the lower end of the upper power housing, the lower joint is fixedly installed on the inner side of the lower end of the pressure difference housing, the lower core shaft is fixedly installed on the inner side of the lower end of the rotary sealing housing, and at least two pressure drop components that can achieve pressure drop after the liquid passes through are arranged at intervals above and below on the outer side of the lower core shaft; the impact power assembly includes a lower power housing, a lower power device, a lower drive shaft and a lower bearing assembly, the lower power housing is fixedly installed on the outer side of the lower end of the lower joint, the lower power device is arranged on the inner side of the upper part of the lower power housing, the lower end of the lower power device is transmission-connected with the lower drive shaft, and a lower bearing assembly is arranged between the lower drive shaft and the lower power housing; the impact speed-up assembly includes a drill shaft, a multi-dimensional composite impact component and an outer cylinder, the drill shaft is fixedly installed on the lower end of the lower drive shaft, the outer side of the drill shaft is provided with an outer cylinder with the outer side of the upper end and the inner side of the lower end of the lower power housing fixedly installed together, and a multi-dimensional composite impact component is arranged between the drill shaft and the outer cylinder.

[0007] The following are further optimizations and / or improvements to the above technical solutions: The above-mentioned upper bearing assembly may include a first TC bearing, a first series bearing group and a second TC bearing. The first TC bearing is provided between the upper end of the upper drive housing and the upper drive shaft, the first series bearing group is provided between the middle part of the upper drive housing and the upper drive shaft, and the second TC bearing is provided between the lower end of the upper drive housing and the upper drive shaft; the upper power housing includes a universal shaft outer cylinder, a stator housing and a flexible shaft housing, the universal shaft outer cylinder is fixedly installed on the outer side of the lower end of the upper drive housing, the stator housing is fixedly installed on the outer side of the lower end of the universal shaft outer cylinder, the flexible shaft housing is fixedly installed on the inner side of the lower end of the stator housing, and the pressure difference housing is fixedly installed on the outer side of the lower end of the flexible shaft housing; the upper power device includes a universal shaft assembly, a hollow rotor, a bushing and a flexible shaft, the stator housing is provided in the bushing, the hollow rotor is provided in the bushing, the flexible shaft whose lower end is located in the pressure difference housing is provided in the flexible shaft housing, the lower end of the water cap joint is fixedly installed with the upper end of the hollow rotor through the universal shaft assembly, and the inner side of the lower end of the hollow rotor is fixedly installed with the outer side of the upper end of the flexible shaft.

[0008] The above-mentioned rotary seal body may include a rotary seal shell, a bearing group, a baffle cover and an O-ring. A rotary seal shell is provided on the outer side of the lower end of the center tube, a mounting ring groove is provided on the inner side of the upper end of the rotary seal shell, a bearing group located on the outer side of the center tube is provided on the inner side of the lower part of the mounting ring groove, a baffle cover is fixedly installed on the inner side of the upper part of the mounting ring groove, and at least one O-ring is provided between the lower part of the center tube and the rotary seal shell at an upper and lower interval corresponding to the position below the mounting ring groove.

[0009] The above-mentioned pressure difference control assembly may also include a supporting component, the pressure drop component includes an annular retaining ring, a pressure difference nozzle and a lubrication component, at least one of the annular retaining rings is provided with a flow hole that passes through from top to bottom, and a pressure difference nozzle is fixedly installed in the flow hole, the lubrication component includes a wear-resistant inner sleeve, a wear-resistant outer sleeve and an oil nozzle, an inner ring groove is provided on the inner side of the middle part of the annular retaining ring, and a wear-resistant inner sleeve is provided in the inner ring groove of the installation, an outer ring groove is provided on the outer side of the middle part of the annular retaining ring, and a wear-resistant outer sleeve is provided in the outer side of the installation outer ring groove, the annular retaining ring is provided in the outer side of the installation outer ring groove, an oil supply channel that can connect the installation inner ring groove with the installation outer ring groove is provided on the annular retaining ring, and an oil nozzle is provided at the outer end of the oil supply channel; the supporting component includes an upper retaining ring, a limiting sleeve and a lower retaining ring, an upper retaining ring is provided on the outer side of the center tube between the lower end of the upper power device and the annular retaining ring at the uppermost position, a limiting sleeve is provided on the outer side of the center tube between every two adjacent annular retaining rings, and a lower retaining ring is provided on the outer side of the center tube between the annular retaining ring at the lowermost position and the lower joint.

[0010] The above-mentioned impact power assembly may also include a valve core, a valve sleeve, a return spring, a distribution tube, a distribution plate, a distribution block, a drive rod and a connecting joint. The lower power shell includes a valve body, an upper connecting head, a driving outer tube, a middle connecting tube and a lower connecting head fixedly installed together from top to bottom. The lower power device includes a bushing, a rotor, an upper transmission connecting head, a connecting rod and a lower transmission connecting head. A valve sleeve is installed on the inner side of the lower part of the valve body, a first limit ring is provided on the inner side of the upper part of the valve body, a valve core is provided in the valve sleeve with the upper end abutting against the lower side of the first limit ring, a return spring is provided between the valve core and the valve sleeve, and at least one inner bypass hole is provided on the outer side of the middle part of the valve core corresponding to the position above the valve sleeve, corresponding to the inner bypass hole An external bypass hole is provided on the outer side of the valve body at the position; a second limiting ring platform is provided on the inner side of the upper part of the upper connecting head, and a distribution cylinder with an upper end resting on the lower side of the valve body is seated on the second limiting ring platform, a distribution disk is provided on the inner side of the upper part of the distribution cylinder, and a distribution hole that is eccentrically arranged and runs through the upper and lower parts in the middle of the distribution disk is provided, and a number of flow holes that run through the upper and lower parts are provided on the distribution disk corresponding to the outer side of the distribution hole; a bushing is provided on the inner side of the driving outer cylinder, and a rotor is provided in the bushing, the upper end of the rotor is transmission-connected to the lower end of the driving rod, a connecting rod is provided in the middle connecting cylinder, the lower end of the rotor is transmission-connected to the connecting rod through an upper transmission connecting head, and the lower end of the connecting rod is transmission-connected to the lower driving shaft through a lower transmission connecting head.

[0011] The upper left portion of the flow distribution block may be a non-rotating structure with a left lower and a high side.

[0012] The above-mentioned lower bearing assembly may include a third TC bearing, a second series bearing group and a fourth TC bearing. The third TC bearing is arranged between the upper end of the lower connecting head and the lower driving shaft, the second series bearing group is arranged between the middle part of the lower connecting head and the lower driving shaft, and the fourth TC bearing is arranged between the lower end of the lower connecting head and the lower driving shaft.

[0013] The above-mentioned multi-dimensional composite impact component may include a piston liner, a weight, a torsion hammer and a cooperative component. A central channel running through the upper and lower parts is provided in the middle of the drill bit shaft, two upper water outlet holes are provided at intervals in the front and rear of the upper part of the drill bit shaft, and two lower water outlet holes are provided at intervals in the left and right parts of the lower part of the drill bit shaft. A piston liner with a lower end located above the lower water outlet hole is provided on the outer side of the drill bit shaft corresponding to the position of the upper water outlet hole, an upper impact hole is provided on the outer side of the upper part of the piston liner corresponding to the position of the upper water outlet hole, and a lower impact hole is provided on the outer side of the lower part of the piston liner corresponding to the position of the upper impact hole; a weight is provided on the outer side of the middle part of the piston liner, an upper high-pressure impact ring groove is provided on the inner side of the upper end of the weight, a lower high-pressure impact ring groove is provided on the inner side of the lower end of the weight, a torsion hammer is provided on the outer side of the weight, and a cooperative component is provided between the weight and the torsion hammer, which can make the torsion hammer rotate synchronously axially when the weight moves up and down axially, and an outer cylinder body with an upper end located above the drill bit shaft is provided on the outer side of the torsion hammer, and the lower part of the outer cylinder body is installed together with the lower part of the drill bit shaft.

[0014] The above-mentioned cooperative components may include multiple groups of retaining frames arranged at intervals up and down, two outer grooves are arranged at intervals on the front and back of the outer side of the middle part of the weight, and two inner grooves consistent with the outer grooves are arranged at intervals on the front and back of the inner side of the middle part of the torsion hammer, and both the outer grooves and the inner grooves are spiral grooves; the retaining frame includes a large circular body, a small circular body and a ball, at least two large circular bodies are arranged at intervals up and down between the weight and the torsion hammer, small circular bodies are arranged on the front and back sides of the large circular body, and balls are arranged in the small circular body, the inner ends of the balls are located in the outer grooves at the corresponding positions, and the outer ends of the balls are located in the inner grooves at the corresponding positions.

[0015] The above-mentioned multi-dimensional composite impact assembly may also include a throttling nozzle, an external reflux hole is provided on the outer side of the lower part of the piston lining corresponding to the position below the lower impact hole, a reflux ring groove is provided on the outer side of the drill pipe shaft corresponding to the position below the lower water outlet hole, an internal reflux hole inclined with a high outside and a low inside is provided in the reflux ring groove, and a throttling nozzle is provided on the inner side of the drill bit shaft corresponding to the position between the lower water outlet hole and the internal reflux hole.

[0016] The above-mentioned multi-dimensional composite impact assembly may also include an elastic gasket, an impact bearing block, a suspension ring and a bearing. A third limiting ring is provided on the inner side of the upper end of the outer cylinder. The outer side of the lower part of the drill bit shaft corresponding to the position below the piston liner is limitedly installed with the outer cylinder through the suspension ring. An elastic gasket is provided between the outer cylinder and the piston liner corresponding to the position between the heavy hammer and the third limiting ring. An impact bearing block is provided between the outer cylinder and the drill bit shaft corresponding to the position between the heavy hammer and the suspension ring. A bearing is provided between the lower end of the outer cylinder and the drill bit shaft.

[0017] A keyway may be provided on the outer side of the upper end of the drill shaft, an upper fan-shaped ring platform is provided on the outer side of the drill shaft corresponding to the upper water outlet position, and a lower fan-shaped ring platform is provided on the outer side of the drill shaft corresponding to the lower water outlet position.

[0018] At least one guide vertical platform may be provided at intervals along the circumference of the outer side of the piston liner, and a guide vertical groove is provided on the inner side of the heavy hammer at the position corresponding to the guide vertical platform, and the guide vertical platform is located in the guide vertical groove at the corresponding position.

[0019] The above-mentioned torsion hammer may include a torsion punch cylinder and a hammer body. Two hammer bodies are evenly spaced along the circumference of the outer side of the torsion punch cylinder. The inner side of the outer cylinder corresponding to the position of the hammer body is provided with an arc-shaped impact groove that enables the hammer body to swing therein.

[0020] The present invention has a reasonable and compact structure and is easy to use. By arranging an upper bearing assembly, the upper drive shaft is allowed to rotate independently with the upper drive housing, the upper power housing and the pressure difference housing, thereby avoiding motion interference between the drill string above the upper drive shaft and the drill tool below the pressure difference housing, thereby balancing the counter-torque of the drill string system to achieve the directional drilling function; the anti-drilling power assembly generates a driving torque to balance the counter-torque during directional drilling and complete the guiding work; the rotating seal assembly is used to make the upper drive shaft and the lower core shaft rotate independently and provide a flow channel for the drilling fluid in the cavity of the hollow rotor; the pressure drop at both ends of the hollow rotor is controlled by the pressure difference control assembly , thereby controlling the size of the driving torque; by setting an eccentric distribution hole on the distribution plate, the rotating distribution block can periodically block the distribution hole, so that the fluid flow entering the lower power device is a simple harmonic fluctuation, and the output torque of the lower power device forms a torsional impact; by periodically aligning the upper water outlet hole with the upper impact hole, the high-pressure drilling fluid enters to achieve the axial downward impact of the heavy hammer; by periodically aligning the lower water outlet hole with the lower impact hole, the axial upward impact of the heavy hammer is achieved; the axial impact and circumferential impact are achieved by the heavy hammer and the torsion hammer respectively, completing multi-dimensional impact and assisting the drill bit to break rock, which is stable, reliable and has good impact effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 It is a schematic diagram of the main cross-sectional structure of Section I in Examples 1 to 14.

[0022] Attached Figure 2 It is a schematic diagram of the main cross-sectional structure of Section II in Examples 1 to 14.

[0023] Attached Figure 3 It is a schematic diagram of the main cross-sectional structure of Section III in Examples 1 to 14.

[0024] Attached Figure 4 For attachment Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Attached Figure 5 For attachment Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0026] Attached Figure 6 For attachment Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0027] Attached Figure 7 For attachment Figure 3 Schematic diagram of the main cross-sectional enlarged structure of the mid-impact acceleration assembly.

[0028] Attached Figure 8 For attachment Figure 7 Schematic diagram of the three-dimensional structure of the piston liner.

[0029] Attached Fig. 9 For attachment Figure 7 Schematic diagram of the three-dimensional structure of the middle weight.

[0030] Attached Fig.10 For attachment Figure 7 Schematic diagram of the three-dimensional structure of the middle cage.

[0031] Attached Fig.11 For attachment Figure 7 Schematic diagram of the three-dimensional structure of the medium-torsion hammer.

[0032] Attached Fig.12 For attachment Figure 7 Schematic diagram of the three-dimensional structure of the middle drill bit shaft.

[0033] The codes in the accompanying drawings are: 1 is the upper drive shaft, 2 is the upper drive housing, 3 is the water cap joint, 4 is the center tube, 5 is the diverter cone, 6 is the rotary seal housing, 7 is the guide hole, 8 is the pressure difference housing, 9 is the lower core shaft, 10 is the first TC bearing, 11 is the first series bearing group, 12 is the second TC bearing, 13 is the stator housing, 14 is the flexible shaft housing, 15 is the universal shaft assembly, 16 is the hollow rotor, 17 is the flexible shaft, 18 is the universal shaft outer cylinder, 20 is a bearing assembly, 21 is a stop cover, 22 is an O-ring, 23 is an annular stop ring, 24 is a differential pressure nozzle, 25 is a wear-resistant inner sleeve, 26 is a wear-resistant outer sleeve, 27 is an oil supply channel, 28 is a flow hole, 29 is an upper stop ring, 30 is a limit sleeve, 31 is a lower stop ring, 32 is a lower joint, 33 is a valve sleeve, 34 is a reset spring, 35 is a distribution hole, 36 is a distribution tube, 37 is a distribution plate, 38 is a distribution block, 39 is a drive rod, 43 is a valve body, 44 is an inner bypass hole, 45 is an outer bypass hole, 46 is a flow hole, 47 is a valve core, 48 is a third TC bearing, 49 is a second series bearing group, 50 is a fourth TC bearing, 51 is a connecting rod, 52 is an upper transmission connector, 53 is a lower transmission connector, 54 is an upper connector, 55 is a driving outer cylinder, 56 is a middle connecting cylinder, 57 is a lower connector, 58 is a bushing, 59 is a rotor, 61 is the drill shaft, 62 is the piston liner, 63 is the heavy hammer, 64 is the torsion punch cylinder, 65 is the hammer body, 66 is the outer cylinder body, 67 is the central channel, 68 is the upper water outlet hole, 69 is the lower water outlet hole, 70 is the upper impact hole, 71 is the lower impact hole, 72 is the upper high-pressure impact ring groove, 73 is the lower high-pressure impact ring groove, 74 is the large annulus, 75 is the small annulus, 76 is the ball, 77 is the inner groove, 78 is the outer groove, 79 is the throttling nozzle, 80 is the elastic gasket, 81 is the impact bearing block, 82 is the suspension ring, 83 is the bearing, 84 is the third limiting ring platform, 85 is the keyway, 86 is the upper fan-shaped ring platform, 87 is the guide vertical platform, 88 is the guide vertical groove, 89 is the outer return hole, and 90 is the inner return hole. DETAILED DESCRIPTION

[0034] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0035] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached Figure 1 The positional relationships such as front, back, top, bottom, left, and right are described according to the layout directions of the drawings in the specification.

[0036] The present invention will be further described below in conjunction with embodiments and drawings: Embodiment 1: As attached Figures 1 to 12As shown, the mechanical anti-drilling and impact speed-up tool comprises an anti-drilling power assembly, a rotary seal assembly, a pressure difference control assembly, an impact power assembly and an impact speed-up assembly which are arranged in sequence from top to bottom. The anti-drilling power assembly comprises an upper driving shaft 1, an upper driving housing 2, an upper bearing assembly, a water cap joint 3, an upper power housing and an upper power device. An upper driving housing 2 is arranged on the outer side of the middle part of the upper driving shaft 1, and an upper bearing assembly is arranged between the upper driving shaft 1 and the upper driving housing 2. A water cap joint 3 is fixedly installed on the lower end of the upper driving shaft 1, and an upper power housing is fixedly installed on the outer side of the lower end of the upper driving housing 2. An upper power device whose upper end is connected to the water cap joint 3 by transmission is arranged in the upper power housing; the rotary seal assembly comprises a central tube 4, a diverter cone 5 and a rotary seal body, a central tube 4 is fixedly installed on the inner side of the lower end of the upper power device, a rotary seal body located in the upper power housing is fixedly installed on the outer side of the lower end of the central tube 4, a diverter cone 5 is fixedly installed on the outer side of the central tube 4 corresponding to the upper position of the rotary seal body, and a plurality of guide holes 7 which penetrate inside and outside are arranged on the diverter cone 5; The differential control assembly includes a pressure differential housing 8, a lower core shaft 9, a pressure drop component and a lower joint 32. The pressure differential housing 8 is fixedly installed on the outer side of the lower end of the upper power housing, and the lower joint 32 is fixedly installed on the inner side of the lower end of the pressure differential housing 8. The lower core shaft 9 is fixedly installed on the inner side of the lower end of the rotary seal housing 6. At least two pressure drop components that can achieve pressure drop after the liquid passes through are arranged at intervals on the upper and lower sides of the outer side of the lower core shaft 9; the impact power assembly includes a lower power housing, a lower power device, a lower drive shaft and a lower bearing component. The lower end of the lower joint 32 is fixedly installed on the outer side The lower power casing has a lower power device on the inner side of the upper part of the lower power casing, the lower end of the lower power device is connected to the lower drive shaft, and a lower bearing assembly is provided between the lower drive shaft and the lower power casing; the impact speed-up assembly includes a drill shaft 61, a multi-dimensional composite impact assembly and an outer cylinder 66, the lower end of the lower drive shaft is fixedly mounted with the drill shaft 61, the outer side of the drill shaft 61 is provided with an outer cylinder 66 which is fixedly mounted together with the outer side of the upper end and the inner side of the lower end of the lower power casing, and a multi-dimensional composite impact assembly is provided between the drill shaft 61 and the outer cylinder 66. During use, by setting the upper bearing assembly, the upper drive shaft 1 is made to rotate independently with the upper drive housing 2, the upper power housing and the pressure difference housing 8, respectively, to avoid motion interference between the drill string above the upper drive shaft 1 and the drill tool below the pressure difference housing 8, thereby balancing the counter-torque of the drill string system to achieve the directional drilling function; the drive assembly transmits the drilling pressure and torque of the upper drill string to realize the driving power assembly; under the action of the drive assembly, the power assembly generates a driving torque to balance the counter-torque during directional drilling and complete the guiding work; the rotary seal assembly makes the upper drive shaft 1 and the lower core shaft 9 rotate independently, and provides a flow channel for the drilling fluid in the cavity of the hollow rotor 16; the pressure difference control assembly can control the pressure drop at both ends of the hollow rotor 16, thereby controlling the size of the driving torque; by setting the impact power assembly, power is provided to the impact speed-up assembly arranged below it; by setting the impact speed-up assembly, multi-dimensional impact force is provided to assist the drill bit in breaking rock.The present invention can balance the counter-torque generated by rock feedback to the drill bit and the lower screw drill tool during drilling through the driving torque generated by the power assembly. When the driving torque matches the counter-torque of the drill string system, the tool working state is directional drilling, the upper drill string of the tool keeps rotating, and the lower drill tool at the lower end of the tool keeps sliding drilling, and the wellbore trajectory is a nonlinear section; when the driving torque is greater than the system counter-torque, the tool working state is compound drilling, the upper drill string and the lower drill tool keep rotating drilling, and the wellbore trajectory is a linear section; by controlling the size of the ground drive speed, thereby controlling the size of the driving torque, the tool is switched between the two working states to drill the expected wellbore trajectory and complete the directional well guidance work. In addition, in linear well sections, increase the upper drill string driving drilling speed or increase the displacement, pump pressure or reduce the drilling pressure (only change one item, if there is no obvious change in the tool face, these parameters can be changed simultaneously according to the working conditions), and keep the tool in forward rotation in the composite drilling mode according to the parameter values ​​(tool face angle, drill bit speed, etc.) fed back by MWD; in nonlinear well sections, keep the tool relatively still, that is, in directional drilling mode, and the tool face is stable, and reduce the driving speed, displacement, pump pressure or increase the drilling pressure (if the tool face is stable, keep it unchanged, and if the tool face is still unstable after adjusting a certain parameter, adjust the parameter simultaneously according to the working conditions) to complete directional drilling.

[0037] The above mechanical anti-drilling impact speed-up tool can be further optimized and / or improved according to actual needs: Embodiment 2: As attached Figure 1 , 2As shown in , 4 and 5, the upper bearing assembly includes a first TC bearing 10, a first series bearing group 11 and a second TC bearing 12. The first TC bearing 10 is arranged between the upper end of the upper drive housing 2 and the upper drive shaft 1, the first series bearing group 11 is arranged between the middle part of the upper drive housing 2 and the upper drive shaft 1, and the second TC bearing 12 is arranged between the lower end of the upper drive housing 2 and the upper drive shaft 1; the upper power housing includes a universal shaft outer cylinder 18, a stator housing 13 and a flexible shaft housing 14, the universal shaft outer cylinder 18 is fixedly installed on the outer side of the lower end of the upper drive housing 2, and the stator housing 13 is fixedly installed on the outer side of the lower end of the universal shaft outer cylinder 18. 3. A flexible shaft housing 14 is fixedly installed on the inner side of the lower end of the stator housing 13, and a pressure difference housing 8 is fixedly installed on the outer side of the lower end of the flexible shaft housing 14; the upper power device includes a universal shaft assembly 15, a hollow rotor 16, a bushing 58 and a flexible shaft 17. A bushing 58 is provided in the stator housing 13, a hollow rotor 16 is provided in the bushing 58, a flexible shaft 17 whose lower end is located in the pressure difference housing 8 is provided in the flexible shaft housing 14, the lower end of the water cap joint 3 is fixedly installed with the upper end of the hollow rotor 16 through the universal shaft assembly 15, and the inner side of the lower end of the hollow rotor 16 is fixedly installed with the outer side of the upper end of the flexible shaft 17. During use, the hollow rotor 16 rotates and is interference-fitted with the bushing 58 inside the stator housing 13. It rotates under the action of torque, and the sealed cavity formed by the hollow rotor 16 and the bushing 58 changes continuously. A part of the drilling fluid flows into the inner cavity of the hollow rotor 16, and the other part enters the sealed cavity between the hollow rotor 16 and the bushing 58, generating a driving torque and being discharged at the lower end of the hollow rotor 16. The planetary motion of the hollow rotor 16 is balanced by providing a flexible shaft 17. In addition, after the drilling fluid enters the present embodiment from the upper drive shaft 1, it enters the outer cylinder 1 of the universal shaft through the hole provided on the water cap joint 3. 8. After reaching the hollow rotor 16, a part of the drilling fluid is discharged to the lower drill bit through the hollow rotor 16, the flexible shaft 17, the center pipe 4 and the lower core shaft 9 in sequence, and the other part of the drilling fluid is discharged to the lower drill bit through the first annulus (the annulus between the hollow rotor 16 and the bushing 58), the second annulus (the annulus between the flexible shaft 17 and the flexible shaft housing 14), the first guide hole 7, the third annulus (the annulus between the pressure difference housing 8 and the lower core shaft 9) and the flow hole 28 on the annular retaining ring 23 in sequence; by setting the upper bearing assembly, the stability of this embodiment is enhanced, and the counter-torque is better balanced.

[0038] Embodiment 3: As attached Figure 1 , 2As shown in , 4 and 5, the rotary seal body includes a rotary seal housing 6, a bearing group 20, a stopper 21 and an O-ring 22. The rotary seal housing 6 is provided on the outer side of the lower end of the center tube 4, and a mounting ring groove is provided on the inner side of the upper end of the rotary seal housing 6. The bearing group 20 located on the outer side of the center tube 4 is provided on the inner side of the lower part of the mounting ring groove. The stopper 21 is fixedly installed on the inner side of the upper part of the mounting ring groove. At least one O-ring 22 is provided between the lower part of the center tube 4 and the rotary seal housing 6 at a corresponding position below the mounting ring groove. During use, the stopper 21 and the O-ring 22 are provided to achieve a sealing effect; the bearing group 20 is provided to make the flexible shaft 17 and the lower core shaft 9 rotate independently under the interaction of the center tube 4, the bearing group 20 and the rotary seal housing, so as to achieve the tool balanced anti-torque.

[0039] Embodiment 4: As attached Figure 2 , 5 As shown, the pressure difference control assembly also includes a support component, the pressure drop component includes an annular retaining ring 23, a pressure difference nozzle 24 and a lubrication component, at least one of the annular retaining rings 23 is provided with a flow hole 28 that passes through from top to bottom, and the pressure difference nozzle 24 is fixedly installed in the flow hole 28, the lubrication component includes a wear-resistant inner sleeve 25, a wear-resistant outer sleeve 26 and an oil nozzle, the inner side of the middle of the annular retaining ring 23 is provided with an inner ring groove for installation, and the inner ring groove is provided with a wear-resistant inner sleeve 25, the outer side of the middle of the annular retaining ring 23 is provided with an outer ring groove for installation, and the outer ring groove is provided with a wear-resistant outer sleeve 26, and the annular retaining ring 23 is provided with an outer ring groove for installation. An oil supply channel 27 is provided on the retaining ring 23, which can connect the inner ring groove with the outer ring groove, and an oil nozzle is provided at the outer end of the oil supply channel 27; the supporting assembly includes an upper retaining ring 29, a limiting sleeve 30 and a lower retaining ring 31, an upper retaining ring 29 is provided on the outer side of the center tube 4 between the lower end of the upper power device and the annular retaining ring 23 at the uppermost position, a limiting sleeve 30 is provided on the outer side of the center tube 4 between every two adjacent annular retaining rings 23, and a lower retaining ring 31 is provided on the outer side of the center tube 4 between the annular retaining ring 23 at the lowermost position and the lower joint 32. During use, according to different formation conditions, different numbers of pressure difference nozzles 24 can be arranged on the circumference of the annular retaining ring 23 to achieve the expected pressure drop, and different numbers of annular retaining rings 23 can be arranged at upper and lower intervals to change the pressure drop; in addition, the specific pressure drop of the drilling fluid can also be achieved through the actual operation of the hollow rotor 16; according to the friction torque with the lower core shaft 9 and the pressure difference outer shell 8, the annular retaining ring 23 either rotates synchronously with the lower core shaft 9 or rotates with the pressure difference outer shell 8, and the service life of the annular retaining ring 23 is increased by arranging a wear-resistant inner sleeve 25 and a wear-resistant outer sleeve 26, and lubricating oil, the wear-resistant inner sleeve 25 and the wear-resistant outer sleeve 26 are injected through the oil supply channel 27.

[0040] Embodiment 5: As attached Figure 2 , 3As shown in Figures 6 and 7, the impact power assembly also includes a valve core 47, a valve sleeve 33, a return spring 34, a distribution tube 36, a distribution plate 37, a distribution block 38, a drive rod 39 and a connecting joint. The lower power housing includes a valve body 43, an upper connecting head 54, a driving outer sleeve 55, a middle connecting sleeve 56 and a lower connecting head 57 which are fixedly installed together from top to bottom. The lower power device includes a bushing 58, a rotor 59, an upper transmission connecting head 52, a connecting rod 51 and a lower transmission connecting head 53. The valve sleeve 33 is limitedly installed on the inner side of the lower part of the valve body 43, a first limit ring is provided on the inner side of the upper part of the valve body 43, a valve core 47 whose upper end abuts against the lower side of the first limit ring is provided in the valve sleeve 33, a return spring 34 is provided between the valve core 47 and the valve sleeve 33, and at least one inner bypass hole 44 is provided on the outer side of the middle part of the valve core 47 corresponding to the upper position of the valve sleeve 33, corresponding to the inner An outer bypass hole 45 is provided on the outer side of the valve body 43 at the position of the bypass hole 44; a second limiting ring is provided on the inner side of the upper part of the upper connecting head 54, and a distribution cylinder 36 with its upper end abutting against the lower side of the valve body 43 is seated on the second limiting ring, and a distribution plate 37 is provided on the inner side of the upper part of the distribution cylinder 36, and a distribution hole 35 which is eccentrically arranged and passes through from top to bottom is provided in the middle of the distribution plate 37, and a plurality of flow holes 46 which pass through from top to bottom are provided on the distribution plate 37 at the outer position corresponding to the distribution hole 35; a bushing 58 is provided on the inner side of the driving outer cylinder 55, and a rotor 59 is provided in the bushing 58, and the upper end of the rotor 59 is connected to the lower end of the driving rod 39 by transmission, and a connecting rod 51 is provided in the middle connecting cylinder 56, and the lower end of the rotor 59 is connected to the connecting rod 51 by transmission through the upper transmission connecting head 52, and the lower end of the connecting rod 51 is connected to the lower driving shaft by transmission through the lower transmission connecting head 53. During use, by providing the inner bypass hole 44 and the outer bypass hole 45, when drilling, the valve core 47 can be pressed against the lower side of the first limit ring platform under the action of the return spring 34, so that the inner bypass hole 44 and the outer bypass hole 45 are connected, so that the drilling fluid flows out of or enters the drill string to balance the pressure difference of the liquid column inside and outside the drill string. After the pump is turned on, the drilling fluid passes through the valve core 47 and presses down the valve core 47 to compress the return spring 34, blocking the connection between the inner bypass hole 44 and the outer bypass hole 45, so that the drilling fluid flows to the lower power device below; by providing an eccentric distribution hole 35 on the distribution plate 37, the rotating distribution block 38 can periodically block the distribution hole 35, so that the fluid flow entering the lower power device is a simple harmonic fluctuation, so that the output torque of the lower power device forms a torsional impact, avoiding complex flow channel design and reversing pipe inlet groove design, directly transmitting power and impact force to the drill bit, improving the transmission of impact work, and then improving the rock breaking effect of the drill bit, achieving speed increase and efficiency improvement, and shortening the drilling cycle. According to the requirements, the lower power device can be a screw motor.

[0041] Embodiment 6: As attached Figure 6As shown, the left portion of the upper end of the flow distribution block 38 is a non-rotating structure with a low left and a high right. During use, through such a setting, the flow distribution block 38 that is easy to rotate periodically blocks the flow distribution hole 35, so that the fluid flow entering the lower power device is a simple harmonic fluctuation, so that the output torque of the lower power device forms a torsional impact.

[0042] Embodiment 7: As attached Figure 3 As shown, the lower bearing assembly includes a third TC bearing 48, a second series bearing group 49 and a fourth TC bearing 50. The third TC bearing 48 is arranged between the upper end of the lower connector 57 and the lower drive shaft, the second series bearing group 49 is arranged between the middle of the lower connector 57 and the lower drive shaft, and the fourth TC bearing 50 is arranged between the lower end of the lower connector 57 and the lower drive shaft. In the process of use, by such an arrangement, the stability of this embodiment is enhanced, and the counter torque is better balanced.

[0043] Embodiment 8: As attached Figure 3 , 7, 8, 9, 10, 11, and 12, the multi-dimensional composite impact assembly includes a piston liner 62, a heavy hammer 63, a torsion hammer, and a cooperative assembly. A central channel 67 is provided in the middle of the drill shaft 61, which runs through from top to bottom. Two upper water outlet holes 68 are provided at intervals in front and back on the upper part of the drill shaft 61, and two lower water outlet holes 69 are provided at intervals in the left and right parts of the lower part of the drill shaft 61. A piston liner 62 with a lower end located above the lower water outlet holes 69 is provided on the outer side of the drill shaft 61 corresponding to the position of the upper water outlet holes 68, and an upper impact hole 70 is provided on the outer side of the upper part of the piston liner 62 corresponding to the position of the upper water outlet holes 68. A lower impact hole 71 is provided on the outer side of the lower part of the piston liner 62 at the position of the impact hole 70; a weight 63 is provided on the outer side of the middle part of the piston liner 62, an upper high-pressure impact ring groove 72 is provided on the inner side of the upper end of the weight 63, a lower high-pressure impact ring groove 73 is provided on the inner side of the lower end of the weight 63, a torsion hammer is provided on the outer side of the weight 63, and a cooperative component is provided between the weight 63 and the torsion hammer, which can make the torsion hammer rotate axially synchronously when the weight 63 moves up and down axially, and an outer cylinder body 66 with an upper end located above the drill bit shaft 61 is provided on the outer side of the torsion hammer, and the lower part of the outer cylinder body 66 is installed together with the lower part of the drill bit shaft 61. During use, the upper water outlet hole 68 is periodically aligned with the upper impact hole 70, so that the high-pressure drilling fluid enters the upper high-pressure impact annular groove 72 to realize the axial downward impact of the heavy hammer 63; the lower water outlet hole 69 is periodically aligned with the lower impact hole 71, so that the high-pressure drilling fluid enters the lower high-pressure impact annular groove 73 to realize the axial upward impact of the heavy hammer 63; the axial impact and the circumferential impact are respectively realized by the heavy hammer 63 and the torsion hammer, so as to complete the multi-dimensional impact and assist the drill bit to break the rock; by setting up a cooperative component, the torsion hammer can complete the circumferential impact at the same time as the axial impact of the heavy hammer 63; by setting up the upper high-pressure impact annular groove 72, the high-pressure drilling fluid forms a high-pressure cavity after entering the upper high-pressure impact annular groove 72, so as to push the heavy hammer 63 to move downward; by setting up the lower high-pressure impact annular groove 73, the high-pressure drilling fluid forms a high-pressure cavity after entering the lower high-pressure impact annular groove 73, so as to push the heavy hammer 63 to move upward.

[0044] Embodiment 9: As attached Figure 3 , 7As shown in , 8, 9, 10, 11, and 12, the cooperative component includes a plurality of groups of retainers arranged at intervals up and down, two outer grooves 78 are arranged at intervals on the front and back of the middle outer side of the weight 63, and two inner grooves 77 are arranged at intervals on the front and back of the middle inner side of the torsion punch, which are consistent with the outer grooves 78, and both the outer grooves 78 and the inner grooves 77 are spiral grooves; the retainer includes a large annular body 74, a small annular body 75, and a ball 76, at least two large annular bodies 74 are arranged at intervals up and down between the weight 63 and the torsion punch, and small annular bodies 75 are arranged on both the front and rear sides of the large annular body 74, and a ball 76 is arranged in the small annular body 75, and the inner end of the ball 76 is located in the outer groove 78 at the corresponding position, and the outer end of the ball 76 is located in the inner groove 77 at the corresponding position. In the process of use, through such an arrangement, not only can the torsion punch synchronously rotate axially when the weight 63 moves axially up and down, but also the friction force when the torsion punch rotates can be reduced, effectively improving the impact effect of the present invention. The present invention uses a rolling body (ball 76)-slideway (outer groove 78 and inner groove 77) scheme to match the weight 63 and the torsion hammer, which can not only reduce a large number of reversing ports used in existing impact devices, but also provide axial impact force and torsional impact force for the drill shaft 61 at the same time, thereby achieving the purpose of speed increase and efficiency improvement; the present invention greatly simplifies the structure of existing impact drilling tools, is easy to process and assemble, has low cost and long service life, and the impact force can be adjusted by adjusting the length of the weight 63 and other methods.

[0045] Embodiment 10: As attached Figure 3 , 7 As shown in , 8, 9, 10, 11, and 12, the multi-dimensional composite impact assembly also includes a throttling nozzle 79, an outer reflux hole 89 is provided on the outer side of the lower part of the piston liner 62 corresponding to the position below the lower impact hole 71, a reflux ring groove is provided on the outer side of the drill rod shaft corresponding to the position below the lower water outlet hole 69, and an inner reflux hole 90 inclined with an outer high and inner low shape is provided in the reflux ring groove, and a throttling nozzle 79 is provided on the inner side of the drill bit shaft 61 corresponding to the position between the lower water outlet hole 69 and the inner reflux hole 90. In the process of use, through such a setting, the impact effect of the present invention is effectively improved.

[0046] Embodiment 11: As attached Figure 3 , 7As shown in Figures 8, 9, 10, 11, and 12, the multi-dimensional composite impact assembly also includes an elastic washer 80, an impact bearing block 81, a suspension ring 82, and a bearing 83. A third limiting ring platform 84 is provided on the inner side of the upper end of the outer cylinder 66. The lower outer side of the drill shaft 61 corresponding to the position below the piston liner 62 is limitedly installed with the outer cylinder 66 through the suspension ring 82. An elastic washer 80 is provided between the outer cylinder 66 and the piston liner 62 corresponding to the position between the weight 63 and the third limiting ring platform 84. An impact bearing block 81 is provided between the outer cylinder 66 and the drill shaft 61 corresponding to the position between the weight 63 and the suspension ring 82. A bearing 83 is provided between the lower end of the outer cylinder 66 and the drill shaft 61. In use, such an arrangement can not only prevent the outer cylinder 66 from rotating with the drill shaft 61, reducing the friction force when the drill shaft 61 rotates, but also provide support for the drill shaft 61 to prevent it from radially swinging when rotating.

[0047] Embodiment 12: As attached Figure 3 , 7 As shown in FIGS. 8, 9, 10, 11 and 12, a keyway 85 is provided on the outer side of the upper end of the drill shaft 61, an upper fan-shaped ring platform 86 is provided on the outer side of the drill shaft 61 corresponding to the position of the upper water outlet hole 68, and a lower fan-shaped ring platform is provided on the outer side of the drill shaft 61 corresponding to the position of the lower water outlet hole 69. During use, such an arrangement ensures the sealing when the upper water outlet hole 68 and the upper impact hole 70 are periodically aligned, and when the lower water outlet hole 69 and the lower impact hole 71 are periodically aligned, so as to avoid the loss of high-pressure drilling fluid and affect the axial impact effect.

[0048] Example 13: As shown in the attached Figure 3 , 7 As shown in FIGS. 8, 9, 10, 11 and 12, at least one guide vertical platform 87 is provided at intervals along the circumference of the outer side of the piston liner 62, and a guide vertical groove 88 is provided on the inner side of the weight 63 at the position corresponding to the guide vertical platform 87, and the guide vertical platform 87 is located in the guide vertical groove 88 at the corresponding position. During use, the axial movement of the weight 63 is guided by providing the guide vertical platform 87.

[0049] Example 14: As shown in the attached Figure 3 , 7 As shown in Figures 8, 9, 10, 11 and 12, the torsion hammer includes a torsion punch cylinder 64 and a hammer body 65. Two hammer bodies 65 are evenly spaced along the circumference of the outer side of the torsion punch cylinder 64. An arc-shaped impact groove is provided on the inner side of the outer cylinder body 66 corresponding to the position of the hammer body 65 so that the hammer body 65 can swing therein. During use, the hammer body 65 swings in the outer cylinder body 66 and hits the arc-shaped impact groove, providing a circumferential impact force.

[0050] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the requirements of different situations.

Claims

1. A mechanical anti-drilling impact speed-up tool, Features It includes an anti-drilling power assembly, a rotary seal assembly, a pressure difference control assembly, an impact power assembly and an impact speed-up assembly which are arranged in sequence from top to bottom. The anti-drilling power assembly includes an upper drive shaft, an upper drive housing, an upper bearing assembly, a water cap joint, an upper power housing and an upper power device. An upper drive housing is provided on the outer side of the middle part of the upper drive shaft, an upper bearing assembly is provided between the upper drive shaft and the upper drive housing, a water cap joint is fixedly installed on the lower end of the upper drive shaft, an upper power housing is fixedly installed on the outer side of the lower end of the upper drive housing, and an upper power device whose upper end is transmission-connected with the water cap joint is provided in the upper power housing; the rotary seal assembly includes a center tube, a diverter cone and a rotary seal body, a center tube is fixedly installed on the inner side of the lower end of the upper power device, a rotary seal body located in the upper power housing is fixedly installed on the outer side of the lower end of the center tube, a diverter cone is fixedly installed on the outer side of the center tube corresponding to the position above the rotary seal body, and a plurality of guide holes which penetrate inside and outside are provided on the diverter cone; the pressure difference control The assembly includes a pressure difference housing, a lower core shaft, a pressure drop component and a lower joint. The pressure difference housing is fixedly installed on the outer side of the lower end of the upper power housing, the lower joint is fixedly installed on the inner side of the lower end of the pressure difference housing, the lower core shaft is fixedly installed on the inner side of the lower end of the rotary sealing housing, and at least two pressure drop components that can achieve pressure drop after the liquid passes through are arranged at upper and lower intervals on the outer side of the lower core shaft; the impact power assembly includes a lower power housing, a lower power device, a lower drive shaft and a lower bearing assembly. The lower power housing is fixedly installed on the outer side of the lower end of the lower joint, the lower power device is arranged on the inner side of the upper part of the lower power housing, the lower end of the lower power device is transmission-connected with the lower drive shaft, and a lower bearing assembly is arranged between the lower drive shaft and the lower power housing; the impact speed-up assembly includes a drill bit shaft, a multi-dimensional composite impact component and an outer cylinder body, the drill bit shaft is fixedly installed on the lower end of the lower drive shaft, the outer side of the drill bit shaft is provided with an outer cylinder body that is fixedly installed together with the outer side of the upper end and the inner side of the lower end of the lower power housing, and a multi-dimensional composite impact component is arranged between the drill bit shaft and the outer cylinder body.

2. The mechanical anti-drilling impact speed-up tool according to claim 1, Features The upper bearing assembly includes a first TC bearing, a first series bearing group and a second TC bearing. The first TC bearing is provided between the upper end of the upper drive housing and the upper drive shaft, the first series bearing group is provided between the middle part of the upper drive housing and the upper drive shaft, and the second TC bearing is provided between the lower end of the upper drive housing and the upper drive shaft; the upper power housing includes a universal shaft outer cylinder, a stator housing and a flexible shaft housing. The universal shaft outer cylinder is fixedly installed on the outer side of the lower end of the upper drive housing, the stator housing is fixedly installed on the outer side of the lower end of the universal shaft outer cylinder, the flexible shaft housing is fixedly installed on the inner side of the lower end of the stator housing, and the pressure difference housing is fixedly installed on the outer side of the lower end of the flexible shaft housing; the upper power device includes a universal shaft assembly, a hollow rotor, a bushing and a flexible shaft. The stator housing is provided with a bushing, the bushing is provided with a hollow rotor, the flexible shaft whose lower end is located in the pressure difference housing is provided in the flexible shaft housing, the lower end of the water cap joint is fixedly installed with the upper end of the hollow rotor through the universal shaft assembly, and the inner side of the lower end of the hollow rotor is fixedly installed with the outer side of the upper end of the flexible shaft.

3. The mechanical anti-drilling impact speed-up tool according to claim 1 or 2, Features The rotary seal body includes a rotary seal shell, a bearing group, a baffle cover and an O-ring. A rotary seal shell is provided on the outer side of the lower end of the center tube, a mounting ring groove is provided on the inner side of the upper end of the rotary seal shell, a bearing group located on the outer side of the center tube is provided on the inner side of the lower part of the mounting ring groove, a baffle cover is fixedly installed on the inner side of the upper part of the mounting ring groove, and at least one O-ring is provided between the lower part of the center tube and the rotary seal shell at an upper and lower interval corresponding to the position below the mounting ring groove.

4. The mechanical anti-drilling impact speed-up tool according to claim 1, 2 or 3, Features The pressure difference control assembly also includes a supporting component, the pressure drop component includes an annular retaining ring, a pressure difference nozzle and a lubrication component, at least one of the annular retaining rings is provided with a flow hole that passes through from top to bottom, and a pressure difference nozzle is fixedly installed in the flow hole, the lubrication component includes a wear-resistant inner sleeve, a wear-resistant outer sleeve and an oil nozzle, an inner ring groove is provided on the inner side of the middle part of the annular retaining ring, and a wear-resistant inner sleeve is provided in the inner ring groove of the installation, an outer ring groove is provided on the outer side of the middle part of the annular retaining ring, and a wear-resistant outer sleeve is provided in the outer side of the installation outer ring groove, the annular retaining ring is provided with an oil supply channel that can connect the inner ring groove with the outer ring groove, and an oil nozzle is provided at the outer end of the oil supply channel; the supporting component includes an upper retaining ring, a limiting sleeve and a lower retaining ring, an upper retaining ring is provided on the outer side of the center tube between the lower end of the upper power device and the annular retaining ring at the uppermost position, a limiting sleeve is provided on the outer side of the center tube between every two adjacent annular retaining rings, and a lower retaining ring is provided on the outer side of the center tube between the annular retaining ring at the lowermost position and the lower joint.

5. The mechanical anti-drilling impact speed-up tool according to claim 1, 2 or 3, Features The impact power assembly also includes a valve core, a valve sleeve, a return spring, a distribution tube, a distribution plate, a distribution block, a drive rod and a connecting joint. The lower power shell includes a valve body, an upper connecting head, a drive outer tube, a middle connecting tube and a lower connecting head which are fixedly installed together from top to bottom. The lower power device includes a bushing, a rotor, an upper transmission connecting head, a connecting rod and a lower transmission connecting head. A valve sleeve is installed on the inner side of the lower part of the valve body, a first limit ring is provided on the inner side of the upper part of the valve body, a valve core is provided in the valve sleeve with the upper end abutting against the lower side of the first limit ring, a return spring is provided between the valve core and the valve sleeve, and at least one inner bypass hole is provided on the outer side of the middle part of the valve core corresponding to the position above the valve sleeve, corresponding to the position of the inner bypass hole. An external bypass hole is provided on the outer side of the valve body; a second limiting ring platform is provided on the inner side of the upper part of the upper connecting head, a distribution cylinder with an upper end against the lower side of the valve body is seated on the second limiting ring platform, a distribution plate is provided on the inner side of the upper part of the distribution cylinder, a distribution hole that is eccentrically arranged and runs through the upper and lower parts in the middle of the distribution plate, and a plurality of flow holes that run through the upper and lower parts are provided on the distribution plate corresponding to the outer side of the distribution hole; a bushing is provided on the inner side of the driving outer cylinder, a rotor is provided in the bushing, the upper end of the rotor is connected to the lower end of the driving rod by transmission, a connecting rod is provided in the middle connecting cylinder, the lower end of the rotor is connected to the connecting rod by transmission through the upper transmission connecting head, and the lower end of the connecting rod is connected to the lower driving shaft by transmission through the lower transmission connecting head.

6. The mechanical anti-drilling impact speed-up tool according to claim 5, Features The left portion of the upper end of the distribution block is a non-rotating structure with a left lower and a high shape.

7. The mechanical anti-drilling impact speed-up tool according to claim 5 or 6, Features The upper bearing assembly includes a third TC bearing, a second series bearing group and a third TC bearing. A third TC bearing is arranged between the upper end of the lower connecting head and the lower drive shaft, a second series bearing group is arranged between the middle part of the lower connecting head and the lower drive shaft, and a fourth TC bearing is arranged between the lower end of the lower connecting head and the lower drive shaft.

8. The mechanical anti-drilling impact speed-up tool according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, Features The multi-dimensional composite impact assembly includes a piston liner, a weight, a torsion hammer and a cooperative assembly. A central channel running through the middle of the drill bit shaft is provided up and down, two upper water holes are provided at intervals in the front and rear of the upper part of the drill bit shaft, and two lower water holes are provided at intervals in the left and right part of the lower part of the drill bit shaft. A piston liner with its lower end located above the lower water hole is provided on the outer side of the drill bit shaft corresponding to the position of the upper water hole, an upper impact hole is provided on the outer side of the upper part of the piston liner corresponding to the position of the upper water hole, and a lower impact hole is provided on the outer side of the lower part of the piston liner corresponding to the position of the upper impact hole; a weight is provided on the outer side of the middle part of the piston liner, an upper high-pressure impact ring groove is provided on the inner side of the upper end of the weight, a lower high-pressure impact ring groove is provided on the inner side of the lower end of the weight, a torsion hammer is provided on the outer side of the weight, and a cooperative assembly is provided between the weight and the torsion hammer, which can make the torsion hammer rotate synchronously axially when the weight moves up and down axially; an outer cylinder body with an upper end located above the drill bit shaft is provided on the outer side of the torsion hammer, and the lower part of the outer cylinder body is installed together with the lower part of the drill bit shaft.

9. The mechanical anti-drilling impact speed-up tool according to claim 5, Features The cooperative component includes multiple groups of retaining frames arranged at intervals in the upper and lower parts, two outer grooves are arranged at intervals in the front and rear of the outer side of the middle part of the weight, and two inner grooves consistent with the outer grooves are arranged at intervals in the front and rear of the inner side of the middle part of the torsion hammer, and both the outer grooves and the inner grooves are spiral grooves; the retaining frame includes a large circular body, a small circular body and a ball, at least two large circular bodies are arranged at intervals in the upper and lower parts between the weight and the torsion hammer, small circular bodies are arranged on the front and rear sides of the large circular body, and balls are arranged in the small circular body, the inner ends of the balls are located in the outer grooves at the corresponding positions, and the outer ends of the balls are located in the inner grooves at the corresponding positions.

10. The mechanical anti-drilling impact speed-up tool according to claim 8 or 9, Features The multi-dimensional composite impact assembly also includes a throttling nozzle, an outer reflow hole is provided on the outer side of the lower part of the piston lining corresponding to the position below the lower impact hole, a reflow ring groove is provided on the outer side of the drill pipe shaft corresponding to the position below the lower water outlet hole, an inner reflow hole inclined with an outer high and an inner low shape is provided in the reflow ring groove, and a throttling nozzle is provided on the inner side of the drill shaft corresponding to the position between the lower water outlet hole and the inner reflow hole; or / and, the multi-dimensional composite impact assembly also includes an elastic gasket, an impact bearing block, a suspension ring and a bearing, a third limiting ring platform is provided on the inner side of the upper end of the outer cylinder, the outer side of the lower part of the drill shaft corresponding to the position below the piston liner is installed together with the outer cylinder through the suspension ring, an elastic gasket is provided between the outer cylinder and the piston liner corresponding to the position between the heavy hammer and the third limiting ring platform, An impact bearing block is provided between the outer cylinder body and the drill bit shaft at the position between the weight and the suspension ring, and a bearing is provided between the lower end of the outer cylinder body and the drill bit shaft; or / and, a keyway is provided on the outer side of the upper end of the drill bit shaft, an upper fan-shaped ring platform is provided on the outer side of the drill bit shaft corresponding to the position of the upper water outlet hole, and a lower fan-shaped ring platform is provided on the outer side of the drill bit shaft corresponding to the position of the lower water outlet hole; or / and, at least one guide vertical platform is provided at intervals along the circumference on the outer side of the piston liner, a guide vertical groove is provided on the inner side of the weight corresponding to the position of the guide vertical platform, and the guide vertical platform is located in the guide vertical groove at the corresponding position; or / and, the torsion hammer comprises a torsion punch cylinder and a hammer body, two hammer bodies are evenly distributed along the circumference on the outer side of the torsion punch cylinder, and an arc-shaped impact groove that enables the hammer body to swing therein is provided on the inner side of the outer cylinder body corresponding to the position of the hammer body.

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