296results about "Vibration drilling" patented technology

A friction reduction tool configured for selective activation downhole in response to a variation in a media flow's operating condition. A valve assembly and an activation assembly are both positioned downstream of a power assembly, which is configured to rotate a rotating valve segment of the valve assembly with media flow through the tool. The activation assembly is configured to transition from a first position to a second position with the media flow operating condition variation. In the first position, the activation assembly provides a bypass flow path around the valve assembly for at least a portion of the media flow, thereby preventing the valve assembly from generating any significant pressure pulse with rotation of the rotating valve segment. In the second position, the bypass flow path is closed such that all or a majority of the media flows through the valve assembly, thereby generating a significant pressure pulse.

The invention discloses an anti-jamming coal mining drilling machine with drilling and multidirectional impacting functions and a using method thereof.The anti-jamming coal mining drilling machine comprises a drilling machine body, a high-pressure driving mechanism is arranged on the drilling machine body through a multidirectional guide rail mechanism, and a drilling assembly is connected with the high-pressure driving mechanism; when the drilling machine works, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, the high-frequency transverse vibration mechanism synchronously generates transverse high-frequency vibration, the high-pressure driving mechanism drives the drill rod and the drill bit to conduct rotary drilling, and the high-frequency transverse vibration mechanism drives the drill rod and the drill bit to conduct rotary drilling. The friction force between the drill bit and rock is reduced, debris accumulation is prevented, efficient deslagging is achieved, when hard rock or drill jamming occurs, the longitudinal vibration impact mechanism triggers longitudinal vibration, impact and drill jamming prevention functions are achieved through cooperative work of transverse vibration and longitudinal vibration, the drill jamming problem under the complex geological condition is effectively solved, the drilling efficiency and equipment reliability are improved, and the drilling cost is reduced. The device is suitable for drilling operation of mining roofs and baseplates, sides and the like.

The invention provides a geological exploration sampling method and sampling equipment based on vibration drilling and obstacle recognition, and belongs to the technical field of geological exploration. The geological exploration sampling method comprises the following steps: 1, starting drilling; 2, switching a vibration mode; 3, obstacle recognition; 4, grouting assistance; and 5, recovering drilling and completing sampling. According to the geological exploration sampling method, the adaptability to complex stratums can be improved by switching the rotary drilling mode and the vibration drilling mode, a multi-sensor module is adopted in the obstacle recognition step, and pressure, sound waves and vibration signals are collected in real time, so that the obstacle type is accurately judged, and a basis is provided for subsequent drilling mode adjustment. In the grouting assisting step, grouting equipment is adopted to inject grout into an obstacle area from grouting micropores in the front end of a drill bit through a grouting channel so as to effectively weaken an obstacle structure. By means of the method, efficient drilling and sampling operation under the complex stratum condition can be achieved, the drilling tool jamming risk is reduced, adaptability is high, and efficiency is high.

The present invention relates to a wireline intervention tool string (1) for operating in a well (2) having a longitudinal axis, a top (51) and a bottom (52), comprising a tool housing (3) having a longitudinal tool axis, a first part connected to a wireline and configured to face the top of the well, the first part comprising an anchoring section (6) and configured to be rotationally stationary during operation, an operational tool (7) configured to rotate relative to the first part during operation, a driving unit (8) arranged in the first part and configured to provide rotational force to the operational tool, the driving unit being powered via the wireline, and a vibration-generating unit (9) for providing vibration force to the operational tool, wherein the wireline intervention tool string further comprises a vibration-dampening unit (10) arranged in a longitudinal position uphole relative to the operational tool for preventing vibrations generated by the vibration-generating unit from releasing tool sections from other tool sections of the wireline intervention tool string, at least in the first part. The invention also relates to downhole tool system comprising the wireline intervention tool string and a driving section / downhole tractor (15).

According to the pressure generating device for well drilling, in the device, a plurality of upper rotational flow blades are located below an overflowing channel and arranged around a main shaft, and a plurality of lower rotational flow blades are located below the upper rotational flow blades and arranged around the main shaft; the upper overflowing disc is transversely fixed in the lower connector and comprises an upper main overflowing hole, an upper auxiliary overflowing hole and two needle valve holes. The axial bevel gear is in threaded connection with the bottom end of the main shaft, the radial bevel gears are matched with the axial bevel gear at 90 degrees respectively, and the two cams are fixedly connected with the radial bevel gears through key grooves respectively; the lower overflowing disc is transversely connected with the lower connector and located below the upper overflowing disc, the lower overflowing disc comprises a lower main overflowing hole and a lower auxiliary overflowing hole, the needle valves are arranged in the needle valve holes in a penetrating mode and located below the cam, circumferential rotation of the cam is converted into axial reciprocating motion of the needle valves, and the axial reciprocating motion of the needle valves enables the lower auxiliary overflowing hole to be opened and closed. The pressure of the drilling fluid is switched between a low point and a high point so as to generate periodic hydraulic pressure changes. The device relieves backing pressure and improves drilling efficiency.

The invention discloses a variable-diameter two-stage drill bit suitable for viscoplastic stratums and a well drilling method, and belongs to the technical field of petroleum and natural gas well drilling engineering.The variable-diameter two-stage drill bit comprises a drill bit body; a plurality of reaming blades are arranged on the side face of the bit body, a force storage spring is arranged at the bit end of the bit body, and a pilot bit body is arranged at the other end of the force storage spring. The reaming blades are in sliding fit with the drill bit body, and the reaming blades are in sliding fit with the pilot bit body in the radial direction of the drill bit body. When the force storage spring pushes the pilot bit body to be away from the bit body, all the reaming blades move inwards in the radial direction while axially moving along with the pilot bit body; and when the pilot bit body compresses the force storage spring to get close to the bit body, all the reaming blades move outwards in the radial direction while axially moving along with the pilot bit body. Under the cooperation of bit pressure, the reaming cutter wings can stretch out or retract, and the diameter of the drill bit can be automatically adjusted; the overall structure is simple, and the reliability is high.

A turbine type pulse generator for downhole drilling tool has a pulse generating device (2), which has a turbine housing (21), a turbine shaft (22) concentrically arranged inside the turbine housing (21), a turbine mechanism arranged around the turbine shaft (22), and a valve disc mechanism provided at a lower end of the turbine shaft (22). The turbine mechanism is configured to drive the turbine shaft (22) to rotate under an impact of drilling fluid, so that a flow area of the valve disc mechanism is changed periodically to generate pressure pulses. The turbine type pulse generator also has an automatic control mechanism (1) configured to keep the turbine shaft (22) static relative to the turbine housing (21) in a circumferential direction during composite drilling, and to drive the turbine shaft (22) to rotate relative to the turbine housing (21) under an impact of the turbine mechanism during sliding drilling.

A friction reduction tool configured for selective activation downhole in response to a variation in a media flow's operating condition. A valve assembly and an activation assembly are both positioned downstream of a power assembly, which is configured to rotate a rotating valve segment of the valve assembly with media flow through the tool. The activation assembly is configured to transition from a first position to a second position with the media flow operating condition variation. In the first position, the activation assembly provides a bypass flow path around the valve assembly for at least a portion of the media flow, thereby preventing the valve assembly from generating any significant pressure pulse with rotation of the rotating valve segment. In the second position, the bypass flow path is closed such that all or a majority of the media flows through the valve assembly, thereby generating a significant pressure pulse.

A compact vibratory burrowing probe, particularly beneficial in low gravity space exploration environments, uses lateral or stirring-like vibrations to fluidize a surrounding regolith, thereby decreasing the penetration resistance, and compensating for the light overhead weight to improve the burrowing action of the probe into the surface of the terrain of explored moons, planets, or asteroids. Included is a novel vibratory mechanism capable of imparting the novel lateral or stirring vibration, as well as a more conventionally oriented longitudinal vibration.

The invention provides a hydraulic impact oscillation drilling tool which comprises a shell, a pulse generating mechanism, a driving mechanism arranged on the downstream of the pulse generating mechanism, a pulse driving mechanism arranged on the downstream of the pulse generating mechanism, and a driving mechanism arranged on the downstream of the pulse generating mechanism, and the pulse generating mechanism comprises a static valve disc abutting against the inner wall face of the shell and a movable valve disc abutting against the lower end face of the static valve disc. The anti-falling device comprises an anti-falling rod, a fastener and a screw, the fastener is arranged between the anti-falling rod and the movable valve disc, the screw is arranged on the downstream of the anti-falling rod, a stator and a rotor are arranged on the screw, the free end of the anti-falling rod is fixedly connected with the rotor, and the rotor, the anti-falling rod and the movable valve disc are coaxially arranged. The pulse generating mechanism is driven by the surplus energy of the screw for driving the drill bit to generate the pressure pulse, so that the drilling tool generates periodic mild vibration, the friction resistance of a shaft bottom drilling tool assembly close to the drill bit is reduced, and bit pressure transmission is improved.

The present invention relates to the technical field of drilling rig power heads, and discloses a high-frequency eccentric vibration sonic wave power head for drilling rigs, including a power head, wherein the upper and lower ends of the power head are fixedly provided with mounting rings, the inner side of the power head is provided with a cavity, the inner side of the cavity is provided with a high-frequency vibration component, four groups of cooling components are provided on the high-frequency vibration component, and the outer side of the power head is provided with a driving structure, and the high-frequency vibration component includes two groups of fixed seats fixedly provided inside the power head near the upper and lower sides, the inner sides of the two groups of the fixed seats are movably provided with square bars, and a dual-axis motor is fixedly provided between the two groups of the square bars. The high-frequency eccentric vibration sonic wave power head for drilling rigs described in the present invention provides a stronger shock absorption function, a more uniform and firm support, a stable and smooth experience, and reduces the low efficiency caused by high temperature and ensures safety through the use of a high-frequency vibration component in conjunction with a cooling component.

The invention relates to an ultrasonic vibration anti-core-blocking drilling tool and a drilling method thereof, and belongs to the technical field of drilling engineering.The drilling tool is composed of an outer pipe system, an inner pipe system and an ultrasonic vibration system; ultrasonic vibration is applied to an inner pipe system, core blocking, bridging and adhesion in core drilling in complex stratums such as fracture development, broken stratums and water-sensitive stratums are effectively prevented, moving resistance of the core in the inner wall is greatly reduced, core blocking is prevented, the core recovery rate and the drilling speed are increased, and the core drilling efficiency is improved. The method can adapt to various complex stratums by adjusting ultrasonic vibration parameters, and is wide in stratum adaptability, high in universality and easy and convenient to operate.

The invention relates to the technical field of petroleum drilling tools, in particular to a shaft-torsion coupling percussion drilling speed increasing tool which comprises a shell, an upper water wheel, a torsion percussion assembly, a lower water wheel and an axial percussion assembly. The tool is reasonable and compact in structure, the tool is installed at the position close to a drill bit, the upper portion of the shell is connected with a drill collar, the lower portion of the shell is connected with the drill bit, fluid enters the upper portion of a central channel to impact an upper water wheel, the upper water wheel drives an upper rotating shaft to rotate, and a torsion impact assembly periodically impacts a fixing block in the circumferential direction, so that a circumferential impact effect is generated on an outer cylinder; the fluid continuously flows downwards to impact the lower water wheel, the lower water wheel drives the lower rotating shaft to rotate, the axial impact assembly periodically impacts the outer barrel in the axial direction, and then the axial impact effect is generated on the drill bit on the lower portion. The tool can transmit periodic torque and axial impact to the drill bit, the rock breaking speed of the drill bit is increased, the drilling period is shortened, and then cost and time are saved.

The invention belongs to the technical field of tunnel drilling, and particularly relates to a large-dip-angle energy-saving drilling machine for mining, which comprises a bottom support, a middle swing support is fixedly mounted on the upper end face of the bottom support, and a lifting support A is fixedly mounted on the upper end face of the middle swing support and connected with power and a support. An upper swing support is rotationally connected between the power and support connector and the lifting support A. A drilling device is fixedly installed on the upper end face of the upper swing support. The adjustable swing support and the rotary power device are adopted, and multi-angle and multi-direction drilling operation can be achieved. Through the synergistic effect of the middle swing support and the upper swing support, the drill bit can be flexibly adjusted within different dip angle ranges, the drilling requirement under the complex geological condition is met, the operation efficiency is remarkably improved, and the application range is remarkably widened.

The invention discloses a low-power-consumption beat traveling wave driving method for an ultrasonic-assisted drilling sampling device, which comprises the following steps: a driving control system gives a group of high-frequency sine wave signals and a group of low-frequency sine wave signals, and the high-frequency sine wave signals and the low-frequency sine wave signals are superposed to form new beat frequency wave signals; an ultrasonic transducer is driven through a beat frequency signal, and an electric ceramic piece of the ultrasonic transducer is subjected to mechanical deformation so as to excite longitudinal vibration of an ultrasonic drill; the maximum amplitude of beat traveling waves generated by superposition of two groups of sine waves is increased under the condition that the average power of the ultrasonic drill is not changed, so that the efficiency of ultrasonic-assisted particle movement is further improved, the critical rotating speed of a main shaft is reduced, the sampling efficiency of soil particles is improved, and the energy consumption of the whole system is reduced; in addition, a passive damping section is arranged at the non-excitation end of the ultrasonic drill rod, traveling waves transmitted from the excitation end are absorbed, and standing waves are prevented from being generated.

The present application belongs to the field of oil drilling technology, and discloses a PDC drill bit for rock breaking by pressure pulse impact oscillation. The specific technical scheme is as follows: the PDC drill bit for rock breaking by pressure pulse impact oscillation is composed of an upper threaded joint, a shell, a jet pulse block and a drill bit. The jet pulse block is composed of a fluid inlet, a left feedback channel outlet, a right feedback channel outlet, a left fluid channel, a right fluid channel, a left backflow feedback inlet, a left backflow annular fluid channel, a right backflow feedback inlet, a right backflow annular fluid channel, a fluid outlet and a fluid outlet cavity. After the drilling fluid passes through the upper threaded joint, it enters the jet pulse block from the fluid inlet, and then passes through the fluid outlet and flows out from the drill bit water eye. When the drilling fluid passes through the jet pulse block, the flow direction of the drilling fluid will change periodically due to the action of the feedback channel, and a pressure pulse will be generated, forming impact oscillation, and thus accelerating the rock breaking and drilling of the drill bit. The present application has the function of improving the rock breaking efficiency of the drill bit by relying on pressure pulse impact oscillation.

The application discloses a method for controlling the verticality of a vibroflotation stone pile machine, which comprises the following steps: arranging a drill rod system in parallel with a mast of a hoisting system, so that a vibroflotation system connected with the bottom of the drill rod system is parallel with the mast; detecting the verticality of the mast relative to a main machine on a horizontal plane in real time when the vibroflotation system is used for vibroflotation construction, so as to obtain deviation data of the verticality of the mast; judging whether the verticality of the mast needs to be adjusted according to the real-time deviation data of the verticality of the mast; and adjusting the verticality of the mast if the verticality of the mast needs to be adjusted, so that the vibroflotation system can be used to vibroflotation downward to a construction stratum and form a vibroflotation stone pile hole with a required verticality. According to the method, the vibroflotation system can form a vibroflotation stone pile hole with a required verticality, the uniformity and compactness of a formed vibroflotation stone pile hole are ensured, the safety of the vibroflotation stone pile is improved, the construction period is effectively shortened, and the construction cost is reduced.

The invention belongs to the technical field of petroleum drilling equipment, and particularly relates to a variable-frequency all-metal hydraulic oscillator which is mainly composed of an oscillation system and a power system, the power system is mainly characterized in that a turbine stator and a turbine rotor generate mechanical kinetic energy under driving of slurry to drive a pulse system on the lower portion to generate pulse pressure, and therefore the pulse pressure acts on the oscillation system; and axial vibration is generated. By means of the frequency conversion design, the hydraulic oscillator can work as needed, the oscillation frequency can be adjusted as needed, the well drilling requirement can be better met, and the service life of the hydraulic oscillator is prolonged.

The invention discloses an axial vibrator suitable for backing pressure release of a drill column of a large-displacement well, relates to the technical field of drilling operation, and adopts an electromagnetic pulse type axial vibration mode formed by an electromagnetic principle. On the basis, a transmission structure in the whole reciprocating impact process is optimized into a front rod, a middle rod and a rear rod, and the specific process is as follows: an outer bent spring frame and an inner bent spring frame are obtained by optimizing again on the basis of the axial impact process in cooperation with the flowing direction of drilling fluid, and the outer bent spring frame is matched with the axial impact action to carry out adaptive deviation; the invention aims to reduce the dispersion degree of impact force in the reciprocating impact action and ensure that the impact direction is maintained in the axial direction, and the inner bent spring frame is used for maintaining the transmission direction of the impact force, ensuring the deflection degree of the middle rod relative to the rear rod and ensuring that the whole axial vibration process is maintained in the direction parallel to the length direction of a drilling tool, and is particularly used for stabilizing the drilling pressure.

The present invention discloses a device for improving the drilling speed by coupling ultra-high pressure water jet and mechanical impact for rock breaking, which includes an ultra-high pressure jet intensifier, a hydraulic impactor and an ultra-high pressure drill bit that are coaxially and sequentially connected. The upper end of the ultra-high pressure jet intensifier is connected to the drill string. The axial vibration of the drill string is utilized to drive the plunger to move, thereby generating ultra-high pressure fluid. The ultra-high pressure fluid is ejected through the nozzle via the ultra-high pressure flow channel. Since the nozzle is arranged on the ultra-high pressure drill bit with an eccentricity less than the diameter of the drill bit, a circular groove is formed in the bottom-hole rock, cutting off the influence of the horizontal in-situ stress on the bottom-hole rock and reducing the rock strength. At the same time, when the conventional drilling fluid passes through the hydraulic impactor, the impact force of the drilling fluid acting on the ultra-high pressure drill bit is continuously changed, thereby causing impact damage to the rock. This device can form an ultra-high pressure water jet, generate a circular groove at the bottom hole, reduce the strength of the bottom-hole rock, and can form an impact to improve the rock-breaking efficiency.

An automated slide drilling system (ASDS) may be used with a drilling rig system to control slide drilling. The ASDS may autonomously control slide drilling without user input during the slide drilling. The ASDS may further support a transition from rotary drilling to slide drilling to rotary drilling without user input during the transitions. The ASDS may also support user input and user notifications for various steps to enable manual or semi -manual control of slide drilling by a driller or an operator.

A power system comprises two main pumps, two pile grinding oil cylinders and two lifting oil cylinders. Wherein the first main pump is communicated with the first pile grinding oil cylinder through a first pile grinding control valve and is also communicated with the first lifting oil cylinder through a first lifting control valve; the second main pump is communicated with a second pile grinding oil cylinder through a second pile grinding control valve and is also communicated with a second lifting oil cylinder through a second lifting control valve; an oil inlet path between the first pile grinding control valve and the first pile grinding oil cylinder is communicated with an oil return path between the second pile grinding control valve and the second pile grinding oil cylinder, and an oil return path between the first pile grinding control valve and the first pile grinding oil cylinder is communicated with an oil inlet path between the second pile grinding control valve and the second pile grinding oil cylinder; an oil inlet path between the first lifting control valve and the first lifting oil cylinder is communicated with an oil inlet path between the second lifting control valve and the second lifting oil cylinder, and an oil return path between the first lifting control valve and the first lifting oil cylinder is communicated with an oil return path between the second lifting control valve and the second lifting oil cylinder.

Provided is a downhole vibrating tool comprising an interconnected power section, axial shock assembly and lateral vibration assembly wherein the power section comprising a rotor and a stator, the rotor comprising a plurality of lobes and the stator comprising a second plurality of recesses adapted to receive the plurality of lobes, the number of recesses greater than the number of lobes; the axial shock assembly comprising a valve assembly, the axial shock assembly adapted to vary fluid flow therethrough; and the lateral vibration assembly comprising an eccentric mass; wherein the power section, the axial shock assembly and the lateral vibration assembly are aligned linearly.

The invention belongs to the technical field of oil and gas drilling, and particularly relates to a resonance auxiliary rock breaking tool. The resonance-assisted rock breaking tool comprises: a housing; the vibration generating mechanism is arranged in the shell, and the vibration generating mechanism is constructed to be capable of responding to the pressure change of drilling fluid so as to generate vibration; the vibration generating mechanism is arranged in the shell, the frequency adjusting mechanism is arranged in the shell, an oscillation cavity is formed between the frequency adjusting mechanism and a first pressure face, used for responding to drilling fluid pressure, of the vibration generating mechanism, and the size of the oscillation cavity can be adjusted by adjusting the distance between the frequency adjusting mechanism and the vibration generating mechanism. And the vibration frequency is adjusted.

Apparatus and methodologies herein relate to downhole tools capable of creating a vibration, and more particularly for creating and controllably adjusting tunable pressure pulses for imparting vibration to a downhole drill string. Various pressure pulse settings, and corresponding performance parameters, may be selected by controllably restricting fluid flow through the apparatus.

An accurate and elegant model is provided to characterize HFTO. For Type 1 HFTO, the model can predict frequency of the HFTO based on the distance between a reference location on the bottomhole assembly (e g., the end of the drill bit) and a point 40% up the motor. In short BHA strings there is the fundamental frequency while in longer BHA the first harmonic is used. For Type 2 HFTO, the model can predict frequency of the HFTO based on distance between a reference location on the bottomhole assembly (e.g., the end of the drill bit) and the first slick contact point, which is optionally in the middle of a long flex joint.

The present application relates to a grouting reinforcement process for driven flower pipes, belonging to the technical field of building construction. The reinforcement process is as follows: S1. Drill a reinforcement hole on the ground. Multiple sections of flower pipes need to be driven into one reinforcement hole, and the multiple sections of flower pipes are connected end to end and driven in sequence. S11. One end of the first section of flower pipe driven into the ground is connected with a drill bit inside the reinforcement hole, and the diameter of the drill bit is larger than that of the flower pipe. S2. Fill the gap between the reinforcement hole and the flower pipe. S3. Use a high-frequency vibrator to drive the flower pipe into the ground. S31. When driving the flower pipe, the operator needs to straighten the flower pipe. S4. Drive the remaining flower pipes into the ground. S41. After driving one section of flower pipe, connect the flower pipe to be driven with the flower pipe that has been driven into the ground, and then use a high-frequency vibrator to drive it. S5. Drive flower pipes into all the reinforcement holes in sequence and grout all the flower pipes. S6. Seal and reinforce the ground. The present application has the effect of facilitating the reinforcement of building foundations in a small laboratory.

A friction reduction tool and assembly are selectively activatable to produce fluid pressure pulses in downhole operations. The assembly includes a variable choke assembly having a rotary component and a stationary component, each with passages that enter into and out of alignment when the rotary component rotates with respect to the stationary component when driven by a rotor. The rotary component, stationary component, and rotor each have a central bore defining a central passage permitting fluid flow from above the assembly to below the assembly.

The present application relates to the technical field of oil and gas drilling, and discloses a multiple-activation variable-frequency power short section assembly, which comprises a bypass turbine shaft, a turbine driving structure and the multiple-activation variable-frequency power short section assembly, a valve ball structure is arranged on the upper part of the bypass turbine shaft, and a static valve and a dynamic valve are arranged on the lower part of the bypass turbine shaft. The multiple-activation variable-frequency power short section assembly provided by the present application is provided with ball valve holes for shunting drilling fluid at the upper end of the turbine shaft, the flow direction of the well fluid is adjusted by changing the opening and closing state of different ball valve holes, the rotating speed of the turbine rotating driving structure is adjusted, the oscillation frequency of the turbine type hydraulic oscillator for drilling is adjusted, and the purpose of adjustable drilling parameters is achieved. Through the use of the valve ball, the turbine type hydraulic oscillator successfully realizes the transformation of two working modes within a certain number of times, and the service life and stability of the turbine type hydraulic oscillator for drilling are increased.

The application discloses a full-hydraulic adjustable jar and relates to the technical field of drilling equipment; in order to solve the problems of high machining requirement of a hydraulic valve needle of the jar and insufficient sealing of a hydraulic cylinder in the prior art, the following technical scheme is provided: the application comprises an upper joint, a lower centralizing sleeve and a hydraulic driving assembly; the upper joint is connected with a drill string through a double-end thread, and an annular sealing groove is arranged at the root of the thread and is embedded with an O-shaped ring a; the lower centralizing sleeve is connected with a jar shell through a double-end thread, and a sealing nut is arranged at the tail end; the application uses a valveless needle flow valve, controls the flow channel to adjust the oil amount through a flow ring, does not need high-precision valve needle hole machining, effectively reduces the manufacturing cost, in addition, a double-acting hydraulic driving assembly is adopted, the jar direction can be flexibly switched, the problem of drill pipe sticking in complex strata is solved, and the releasing efficiency is improved.