233results about "Vibration drilling" patented technology

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 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).

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 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 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 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.

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.

The intelligent piling machine adopting the variable-frequency vibration water vapor compaction method comprises a chassis, a mast, a winch, a vibration hammer and a vibration rod, the vibration rod is installed on the vibration hammer, a nozzle is arranged at the lower end of the vibration rod, the intelligent piling machine further comprises a water and gas supply system, and the water and gas supply system comprises a gas storage tank, a water storage tank and an air compressor; a water supply pipe is arranged at the bottom of the air storage tank, an air supply pipe is arranged at the bottom of the air storage tank, and the end of the water supply pipe and the end of the air supply pipe are connected with the vibration rod through conveying pipes. A pneumatic valve I is mounted on the pipeline between the air storage tank and the water storage tank, a pneumatic valve II is mounted on the water supply pipe, a pneumatic valve III is mounted on the air supply pipe, and a pneumatic valve IV is mounted on the pipeline between the water pump and the water storage tank; when the pile machine drills downwards through the vibration rod, water, air or water vapor mixed with water and air can be selectively sprayed to the soil through the nozzles according to the water content of the soil, so that the component density of the soil is changed, the soil structure is reinforced, the work efficiency is improved, and the construction cost is reduced.

The invention provides a hole bottom rock breaking device applied to extraterrestrial celestial body deep drilling. The hole bottom rock breaking device comprises an ultrasonic generator, a cable, an electric slip ring, an ultrasonic transducer, a free mass block, a spiral drill rod and a drill bit. The ultrasonic generator generates ultrasonic energy and provides the ultrasonic energy to the ultrasonic transducer; the ultrasonic transducer is used for converting an input ultrahigh-frequency electric signal into ultrahigh-frequency mechanical vibration; the free mass block excites the ultrahigh-frequency ultrasonic vibration generated by the ultrasonic transducer to drive downwards to generate high-frequency collision with the spiral drill rod, so that the spiral drill rod and the drill bit move downwards to impact the rock, and the free mass block performs reciprocating high-frequency collision between the ultrasonic transducer and the spiral drill rod through reverse movement of impact counterforce; the spiral drill rod is connected with the bottom of the ultrasonic transducer, and energy generated by ultrahigh-frequency vibration of the ultrasonic transducer and high-frequency impact of the free mass block is transmitted downwards to the drill bit. And the drill bit acts the high-frequency-ultrahigh-frequency impact energy on the rock, and the rock is broken through continuous impact.

To provide suitable hybrid excavation Shimoiwa.SOLUTION: A method for utilizing a millimeter wave drilling apparatus (300) is provided. The method can include monitoring a permeability of a first portion of a borehole of a well while forming the borehole using a drilling apparatus including a drill bit for mechanically removing material from within the borehole. The method can also include determining to utilize a millimeter wave drilling apparatus including a waveguide (430) configured for insertion into the borehole based at least on the permeability of the borehole being below a permeability threshold. The method can further include, in response to the determining, forming a second portion of the borehole utilizing the millimeter wave drilling apparatus. A method for controlling downhole pressure of a well is also provided. An associated system for performing the method is also provided.SELECTED DRAWING: Figure 3

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.

The application provides a self-adaptive screw drill, which comprises a cylindrical shell, a power spindle for connecting a power motor, the power spindle being arranged concentrically in the cylindrical shell and being rotatable relative to the cylindrical shell, the power spindle being provided with a first central flow channel, an output spindle for connecting a drill bit, the output spindle being arranged at a lower end of the power spindle and being provided with a second central flow channel extending in an axial direction, and an elastic member being sleeved on the output spindle, wherein the power spindle is configured to drive the output spindle to rotate so as to transmit power of the power motor to the drill bit, the output spindle is capable of moving upward relative to the power spindle to reduce a soil penetration depth of the drill bit when a torque of the drill bit is too large, the output spindle is capable of generating a pressure pulse when the output spindle moves upward to a highest point, the output spindle compresses the elastic member to store energy during the upward movement of the output spindle, and the output spindle is capable of releasing elastic potential energy after reaching the highest point, so that the output spindle impacts the drill bit under the combined action of the pulse pressure and the elastic member.

The present invention provides a pressurized resistance-reducing device for continuous tubing drilling, comprising a resistance-reducing unit, the resistance-reducing unit comprising an oscillating element and a jet element connected to the oscillating element; a pressurizing unit, the pressurizing unit comprising a cylinder having an inner cavity connected to the resistance-reducing unit, a piston rod disposed in the inner cavity, a piston sleeved on the piston rod, and a drill assembly connected to the bottom of the pressurizing unit. The jet element is capable of generating a jet so as to cause the fluid flowing through the resistance-reduction unit to oscillate, and the piston rod is capable of axially moving along the cylinder under the action of the pressure difference on both sides of the outer wall of the cylinder, thereby applying a flexible drilling pressure to the bottom drill assembly. The pressurized resistance-reducing device for continuous tubing drilling of the present invention can increase the drilling pressure of continuous tubing drilling while reducing the friction force exerted on the continuous tubing by the well wall.

The invention relates to the technical field of hydraulic oscillators, in particular to a turbine hydraulic oscillator with adjustable vibration frequency. The turbine hydraulic oscillator with the adjustable vibration frequency comprises a power section and a vibration section, the vibration section comprises a vibration core shaft sleeved with a vibration shell, the vibration core shaft is sleeved with a piston and a belleville spring, the bottom end of the belleville spring is connected with the piston, and the top end of the belleville spring is connected with the vibration shell; the vibration joint comprises a hollow power mandrel penetrating into the power shell, a turbine set is arranged outside the hollow power mandrel, an upper valve body is arranged at the bottom end of the hollow power mandrel, a lower valve body is arranged below the upper valve body and connected with the upper valve body through a gasket, the upper valve body and the lower valve body are provided with eccentric circular through-flow holes respectively, and the height of the lower valve body is adjustable. According to the turbine hydraulic oscillator with the adjustable vibration frequency, the vibration force of the device is enhanced through the circular through-flow holes; the power and the working efficiency of the turbine set in the working process are changed by adjusting the height of the gasket, the area of the nozzle and the height of the lower valve body, and the requirements for vibration force and vibration frequency in various construction environments are met.

The utility model relates to the technical field of drilling equipment, and discloses a vibration resistance reduction tool for drilling, which comprises an upper joint, a shell and a lower joint, two ends of the shell are respectively connected with the upper joint and the lower joint, a piston, an upper spring, a movable valve, a lower spring and a filter are arranged in the shell, the upper spring is sleeved at the lower end of the piston, and the lower spring is sleeved at the lower end of the filter. The other end of the upper spring abuts against the upper end face of the necking section of the shell, the lower end of the movable valve is sleeved with the lower spring, and the other end of the lower spring abuts against a positioning groove of the lower connector. The upper end face of the movable valve is provided with a central through hole and at least one outer side through hole which are both communicated with the inner cavity, the circulation area of the central through hole is smaller than the minimum circulation area of the piston, the piston abuts against the movable valve in the initial state, and the lower end face of the piston can seal all the outer side through holes of the movable valve; a first limiting structure is arranged between the piston and the shell to limit the lowest point of the piston, a second limiting structure is arranged between the movable valve and the shell to limit the lowest point of the brake valve, resonance amplification of the piston and the movable valve is achieved, and the resistance reduction effect is good.

The present invention discloses an axial-circumferential composite vibration drag reduction drill tool, which includes an outer tube, an upper joint being threadedly connected at the upper end of the outer tube, an oscillator being provided inside the outer tube, and the oscillator including a cover plate and a base plate. Compared with the prior art, the present invention has the following advantages: the present invention has a simple and compact structure, adopts a single feedback channel, has good jet switching stability, is not prone to flow channel blockage, and can generate periodic liquid flow pressure by relying solely on the internal fluid channel setting, pushing the impact block to swing and hitting the left and right walls of the oscillation chamber to generate circumferential vibration. At the same time, the impact force of the fluid flowing through the feedback channel forms axial vibration, causing the drill tool to creep axially, converting static friction into sliding friction, thereby reducing drill pipe friction. Compared with the pulse pressure generated by other types of vibration drag reduction devices, the present device has a simple structure, is easy to control frequency and pressure drop, is short in size, and has a high slope rate, which can effectively improve downhole operation efficiency.