339results about "Vibration devices" patented technology

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.

A method for stimulating hydrogen production from an injection formation. This method includes the steps of providing a well traversing a subsurface into an injection formation containing hydrocarbons. Carbon dioxide, water, steam, and combustion gas are introduced into the injection formation via the well. Further, the injection formation is stimulated using one or more of infrasonic, sonic, and ultrasonic stimulation. The injection formation is monitored via one or more sensors located in the injection formation to determine one or more properties of reactions in the injection formation and the flow back effluent. Flowback operations are conducted to retrieve flowback effluent.

An apparatus for damping vibrations includes an inertial mass disposed in a cavity in a rotatable downhole component, the rotatable component configured to be disposed in a borehole in a subsurface formation, such as a resource bearing formation, the inertial mass coupled to a surface of the cavity by a damping fluid and configured to move within the cavity relative to the downhole component. The apparatus also includes a damping fluid disposed in the cavity between the inertial mass and an inner surface of the cavity, where rotational acceleration of the rotatable downhole component causes shear in the damping fluid to dissipate energy from rotational acceleration of the rotatable downhole component and causing the rotational acceleration to be reduced.

The invention discloses a motor-driven columnar vibrator suitable for subglacial lake drilling, and belongs to the field of polar subglacial lake drilling, an output shaft of an underwater motor rotates and drives a rotating part comprising a coupler, a cam transmission shaft and a cam to rotate synchronously with the rotating part, and the cam is a circumferential cam with a repeated curved surface; in the rotating process of the cam, the upper surface of the cam makes contact with the cam follower and pushes up a linear vibration component composed of a linear push rod, a vibration mass block, a cam follower installation frame, a spring base, a cantilever bearing and the cam follower, and in the process, a spring is compressed till the cam follower crosses the highest point of the curved surface of the upper surface of the cam; and the spring is released, so that the matching surface between the linear push rod and the frame top plate is impacted to generate vibration, and vibration force is transmitted to the frame bottom plate through the frame side plate to finish single impact. The radial size and the axial size of the vibrator structure can be saved to a great extent, so that the vibrator can be applied to small-diameter drilling.

The utility model discloses a novel ultrasonic plug-removing and injection-increasing device and relates to the technical field of oil extraction. A piezoelectric ceramic tube is installed in the protection tube, an inner hole of the protection tube is a conical hole with the diameter of the lower portion becoming larger, the piezoelectric ceramic tube is of a conical tube structure, the taper of the piezoelectric ceramic tube is the same as that of the protection tube, the upper end face of the lower connector abuts against the bottom face of the piezoelectric ceramic tube, and the lower connector does not make contact with the transverse end face of the protection tube. The utility model has the beneficial effects that the inner hole of the protective tube and the piezoelectric ceramic tube are made into a conical structure, the piezoelectric ceramic tube is assembled into the protective tube from the lower part, and when the lower joint is in threaded connection with the protective tube, the piezoelectric ceramic tube is moved upwards; the piezoelectric ceramic tube and the protection tube are tightly matched together, the transmission efficiency of ultrasonic waves is improved, and the blocking removal and injection increasing effects are improved.

A method for stimulating hydrogen production (200) from an injection formation (102). This method includes the steps of providing a well system (106) traversing subsurface formations (104) into an injection formation (102) containing hydrocarbons. Carbon dioxide, water, steam, and combustion gas are introduced into the injection formation (102) via the well system (106). Further, the injection formation (102) is stimulated using one or more of infrasonic, sonic, and ultrasonic stimulation (225). The injection formation (102) is monitored (230) via one or more sensors located in the injection formation (102) to determine one or more properties of reactions in the injection formation (102) and the flow back effluent. Flowback operations (240) are conducted to retrieve flowback effluent.

The invention belongs to the technical field of drilling, and particularly relates to a manganese ore water-sensitive stratum geological drilling plugging enhancing method which comprises the following steps: step 1, injecting drilling mud containing a plugging material into a drill hole in a drilling process; and 2, vibration or pulse is applied to the slurry through a ground or underground device. According to the method, vibration or pulses are applied in the drilling process, so that pore throats and micro cracks near the well wall generate a periodic opening and closing effect, and a plugging material is continuously driven to enter and is compacted step by step under the action of dynamic pressure and is not limited to the surface layer of the well wall any more, so that the deepness, compactness and anti-scouring capacity of a plugging layer are improved; the safety and continuity of water-sensitive stratum drilling are enhanced, and the method has a good application prospect in the technical field of geological drilling.

The invention relates to the technical field of petroleum engineering well cementation, and discloses a well cementation construction process of a highly-deviated well, which comprises the following steps of: cleaning an oscillating foundation, and stripping well wall pollutants by generating an oscillating effect through periodically changing circulating pressure and flow velocity; electrochemical synergistic cleaning is carried out, and organic pollutants are decomposed through the electrolysis effect; catalytic decomposition cleaning accelerates fracture of a mud cake polymer molecular chain; carrying out ion exchange treatment to change a pollutant charge distribution state; and a circulating purification step: removing reaction products in real time and recovering reaction conditions. Physical and chemical composite cleaning is achieved through the synergistic effect of multiple processes, highly-deviated well annulus pollutants are thoroughly removed, and the well cementation quality and the shaft sealing performance are remarkably 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 provides a microwave pulse electric field vibration synergistic fracturing and permeability increasing gas extraction promoting device and method, and relates to the technical field of low-permeability coal seam fracturing and permeability increasing. According to the method, multi-physical field coupling synergistic interaction is achieved, and the fracturing efficiency and range are greatly improved. According to the invention, deep collaboration of multiple physical fields is realized through a specific time sequence and energy ratio. The thermal stress generated by microwave preheating enables a large number of microcracks to be generated in the coal body and soften the coal quality, and the resistivity and the medium strength of the coal body are reduced. In the state, the pulsed electric field with lower voltage can preferentially and effectively break down and expand the fracture network along the micro-fracture path; meanwhile, high-frequency mechanical vibration not only efficiently transmits energy to the tip of the fracture to generate stress concentration to promote extension of the fracture, but also disturbs coal particles to promote gas desorption. Through three-field cooperation, cracks can be more efficiently initiated, expanded and communicated in a three-dimensional space, a three-dimensional complex crack network far beyond the action range of a single technology is formed, and the overall permeability of a coal seam is remarkably improved.

A system can be provided that can include a measurement tool that can be coupled to a conveyance mechanism for positioning the measurement tool downhole in a wellbore. The wellbore can be encased by a tubular. The system can further include a vibration-inducing device that can cause the tubular to vibrate. Additionally, the system can include an interferometer coupled to the measurement tool for detecting the vibration in the tubular. The system can further generate data useable to determine at least one status of the tubular and at least one status of a cement layer. The cement layer can be positioned between the tubular and a subterranean formation surrounding the wellbore.

The invention provides a laser ultrasonic coaxial composite rock crushing device, and relates to the technical field of drilling equipment. The laser irradiation module comprises an optical isolator and a lens which are coaxially arranged; the ultrasonic drilling module comprises an ultrasonic transducer, a spiral groove amplitude-change pole, a first elastic piece and a drill bit, the upper end of the spiral groove amplitude-change pole is connected with the ultrasonic transducer, the lower end of the spiral groove amplitude-change pole is connected with the drill bit, the first elastic piece is connected with the lower end of the spiral groove amplitude-change pole, and a plurality of spiral grooves are formed in the outer wall of the spiral groove amplitude-change pole; the spiral groove amplitude-change pole and the drill bit are both arranged in a hollow mode to form a laser channel. The device has the beneficial effects that when the ultrasonic transducer drives the drill bit to drill a drilling point position, laser spots output by the optical isolator irradiate the drilling point position through the lens and the laser channel, and rocks are broken in a composite mode of the laser heat effect and the ultrasonic vibration effect; and when the melt on the surface of the rock is not formed, the drill bit realizes rock breaking, and the problem that the laser rock breaking efficiency is reduced due to the secondary effect is solved.

The invention relates to the technical field of petroleum and natural gas well drilling corollary equipment, in particular to a drill column wriggling tool which comprises an upper connector, a sleeve, a lower connector, a mandrel, an impeller, a supporting column and a supporting assembly. The device is reasonable and compact in structure, when the device is used, the upper end of the upper connector is connected with an upper drill column, the lower end of the lower connector is connected with a lower drill column, drilling fluid enters the upper connector from the upper drill column and flows through the upper connector, the supporting assembly, a center hole of the upper valve disc, a flow guide groove of the rotating shaft and a flow guide hole, and then the impeller rotates under the impact effect of the drilling fluid; the rotating shaft is driven to rotate, so that the lower valve disc and the upper valve disc rotate relatively, an upper flow channel can periodically open or close a switch hole, a supporting column can periodically stretch out and retract, axial force is periodically transmitted to a lower connector, and the phenomena of dragging pressure and stick-slip generated in the drilling process of a high-friction-torsion well section are eliminated. And the gravity of the upper drill column can be smoothly transferred downwards, so that the rock breaking drilling efficiency of the drill bit is improved.

The invention relates to a well hole acoustoelectric intelligent fusion anti-reflection, yield-increasing and efficiency-increasing system and method, and the system comprises an ultrasonic generator which is used for generating ultrasonic waves meeting preset frequency and power conditions; the transient electromagnetic field generator is used for generating a transient electromagnetic field corresponding to the ultrasonic waves; the data monitoring module is used for monitoring environment change in the well hole to generate monitoring data of the well hole; and the control module is used for generating a parameter combination meeting the preset optimal working condition according to the monitoring data, adjusting the pulse mode of the ultrasonic generator according to the parameter combination, adjusting the working parameters of the ultrasonic wave and the transient electromagnetic field according to the pulse mode and the monitoring data, and obtaining a well hole acoustoelectric coupling result meeting the preset optimal condition. Therefore, the problems of high cost, low efficiency and environmental pollution faced by oil and gas field yield increase and the problems of low geothermal recharge efficiency faced by geothermal resource exploitation are solved.

The invention discloses an advanced grouting reinforcement method. The method comprises the steps that S1, drill holes are formed in the periphery of a roadway to be excavated in advance; s2, high-pressure water is injected into the drill hole to open an original closed crack in the surrounding rock; and S3, an ultrasonic transducer is placed in the drill hole, the ultrasonic transducer generates ultrasonic waves to enable water in the crack to vibrate, and meanwhile, grouting is conducted in the drill hole adjacent to the drill hole where the ultrasonic transducer is placed. According to the advanced grouting reinforcement method, the grouting range is widened, the grouting amount is increased, and the forming quality and stability of the inner section of the roadway are guaranteed.

The invention relates to a variable-amplitude hydraulic oscillator, and belongs to the technical field of petroleum and natural gas well drilling matching tools. The tool aims at solving the problems that a traditional hydraulic oscillator is single in vibration mode, and equipment is prone to damage and low in efficiency due to the fact that the amplitude cannot be adjusted. The device structurally comprises a flow conversion short section, an axial vibration short section, a power short section and a radial vibration short section which are connected in sequence. The flow conversion short section achieves switching of a high amplitude mode, a low amplitude mode and a closing mode through the synergistic effect of a hole-shaped piston, a ratchet wheel and a flow channel conversion mandrel and by means of interruption and recovery of fluid flowing. The axial vibration short section adopts a two-stage piston structure to generate efficient axial vibration, the power short section is matched with a dynamic valve plate and a static valve plate through a screw rotor to generate high-frequency pressure pulses, and the radial vibration short section forms transverse vibration by means of centrifugal movement of a pendulum ball. By adjusting the fluid path, the tool can output shock waves of different amplitudes, friction between a drilling tool and the well wall is reduced, and meanwhile fluid pressure is maintained in a closed mode so that clamping stagnation of a pipe column can be avoided. The invention has the beneficial effects of prolonging the service life of equipment, improving the drilling efficiency, reducing the risk of jamming of the drilling tool and adapting to complex formation conditions.

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 invention provides a high-fidelity soil acquisition method based on pore water electrolysis resistance reduction, which comprises the following steps: step 10, drilling to an underground water level position at a sampling point to form a preformed hole; step 20, inserting a plurality of electrode plates around the sampling point; penetrating a sampling drill rod from the preformed hole, connecting the sampling drill rod with a negative electrode of an adjustable power supply, and connecting an electrode plate with a positive electrode of the adjustable power supply; in the process that the traction unit drives the sampling drill rod to penetrate into the position below the underground water level, the electrode plate and the sampling drill rod are powered on, interstitial water in the soil body near the sampling drill rod is electrolyzed, and bubbles are generated; meanwhile, the vertical vibration unit drives the sampling drill rod to vibrate in a reciprocating manner in the vertical direction, and the soil body near the sampling drill rod is induced to be liquefied until the soil sample in the preset sampling depth range is taken out. According to the high-fidelity soil collection method based on pore water electrolysis resistance reduction, disturbance is reduced, the soil structure is prevented from being obviously changed, and the fidelity effect of the soil sample is improved.

The invention relates to the technical field of petroleum and natural gas exploration and development, in particular to a pulse rotational flow well cementation oscillator and a using method thereof. The pulse rotational flow well cementation oscillator comprises a shell, the bottom of the shell is rotationally connected with a guide shoe cap, an installation disc is arranged in the shell, the top of the installation disc is provided with a piston cylinder, the upper end of the piston cylinder is open, the piston cylinder and the shell form an annulus, the installation disc is provided with an inclined rotational flow hole communicated with the annulus, and an upper side hole communicated with the annulus is formed in the upper portion of the side wall of the piston cylinder. The bottom of the rotating shaft rotatably penetrates through the piston cylinder and the mounting disc, an upper turntable hydraulically driven to rotate is arranged at the top of the rotating shaft, a first inclined hole communicated with the piston cylinder and a second inclined hole communicated with the annulus are formed in the upper turntable, the rotating shaft is connected with the piston through a cam mechanism, and when the rotating shaft rotates, the piston vertically ascends and descends along the piston cylinder to block or unblock the upper side hole. Through the combination of pulse agitation and rotational flow, the uniform distribution degree of well cementation liquid and the well cementation quality are greatly improved, the eccentric guide shoe cap is rotationally connected with the shell, and the tripping-in efficiency of a well cementation pipe string can be improved.

An agitator deployable in a wellbore includes a housing including a central axis and a central passage, a valve including a first valve body having a first contact face and a second valve body permitted to rotate relative to the first valve body and having a second contact face configured to contact the first contact face, a first valve adapter including a first receptacle which receives at least a portion of the first valve body to couple the first valve adapter to the first valve body, and a flexible valve configured to permit the first valve body to flex relative to the first valve adapter whereby an angular misalignment may form between a central axis of the first valve body and a central axis of the first valve adapter.

The invention belongs to the technical field of well drilling, and particularly relates to petroleum well drilling speed increasing equipment which comprises an outer cylinder, an upper connector and a lower connector. A vibration column is installed in the outer cylinder, a circulation groove is formed in the vibration column, and the vibration column is installed on the lower connector. A mounting block is mounted on the inner wall of the outer cylinder, a connecting ring is mounted on the mounting block, a swing rod is mounted on the connecting ring, the other end of the swing rod makes contact with the upper surface of the vibration column, an elastic rod is mounted between the mounting block and the swing rod, and the elastic rod is located below the swing rod; a flow guide block is installed at the lower end in the upper connector, and an annular flow channel is formed between the flow guide block and a channel in the upper connector. The device is simple in structure, the flowing direction and position of drilling fluid can be changed through the rotating disc, the multiple sets of swing rods swing in turn and impact the vibration column, axial vibration with variable magnitude and frequency is generated, the drilling speed is increased, and the problem is solved.

A method for displacing a tubular string in a wellbore can include axially vibrating the tubular string at a surface location, and reducing friction between the tubular string and the wellbore due to the axially vibrating. The axial vibration may be imparted by operation of an injector assembly. The axial vibration may be imparted by operation of a vibration tool connected between the injector assembly and a wellhead or a support structure that suspends the injector assembly. The axial vibration may be imparted by varying a flow rate of fluid into the tubular string.

Systems and methods for generating hydrogen are provided. The system includes a silica generator configured to generate an injection fluid comprising silica particles, an injection apparatus configured to inject the silica injection fluid into a target zone of an injection well, and a sonicator configured to transmit sound waves to the target zone of the injection well. The method includes generating an injection fluid comprising silica particles, injecting the injection fluid into the target zone of the injection well, and sonicating the target zone of the injection well, thereby generating hydrogen.

The invention belongs to the technical field of mineral resource exploration, and particularly relates to an ultrasonic vibration assisted rock breaking device and a drilling method. The ultrasonic vibration assisted rock breaking device comprises a rack and loading system, a rotary drilling system, an ultrasonic vibration system and a measurement control system. Current is transmitted to a piezoelectric ceramic group through a conductive slip ring and a carbon brush of the ultrasonic vibration system, the piezoelectric ceramic group is excited to generate ultrasonic vibration, and amplified high-frequency vibration is continuously transmitted to a drill rod and a drill bit of the rotary drilling system which rotates at a high speed through an amplitude-change pole type ultrasonic vibrator; and rotation-vibration composite rock breaking is achieved. The method comprises the steps of preparing a rock sample and setting initial parameters, fixing the rock sample, applying axial drilling pressure, starting drilling fluid circulation, starting rotary drilling, starting ultrasonic vibration, and performing real-time monitoring and self-adaptive adjustment, the parameters can be adjusted in real time according to rock stratum changes, the rock breaking efficiency of the hard rock stratum is remarkably improved, the drilling load is reduced, and the drilling efficiency is improved. And the service life of the drill bit is effectively prolonged.

The present invention discloses a continuous tubing jar, comprising a connecting tube, wherein one side of the connecting tube is threadedly connected to a pressure tube, the other side of the pressure tube is threadedly connected to a spline tube, the interior of the connecting tube is threadedly connected to a punching tube, the interior of the pressure tube is slidably connected to a spline shaft, two groups of pistons and sealing rings are oppositely connected at both ends of the outer side of the spline shaft, a plurality of connecting plates are fixedly connected at equal distances to one side of the inner wall of the sealing ring, and a piston is fixedly connected to the end of the connecting plate away from the sealing ring, and wireless liquid sensors are bolted to both sides of the connecting plate. The present invention uses a micro-oil pump and oil pipe inside the sealing ring, and after the piston oil leaks, the oil pump can be used to re-pump the leaked hydraulic oil into the cavity, actively processing the leaked hydraulic oil and avoiding the situation where the device cannot be used after the hydraulic oil is lost.

The invention relates to a device for generating oscillations for a construction machine, comprising a housing, a piston which is movable back and forth in a working chamber in the housing between a first return point and a second return point, a pressurized fluid supply through which in each case pressurized fluid can be fed into and discharged from the working chamber via at least one actuatable control valve in the region of the first return point and the second return point, wherein the piston can be induced into a reciprocating motion in order to generate the oscillations, and a control unit which is configured to actuate the at least one control valve and by means of which the movement of the piston in the working chamber is controllable and variable. According to the invention, it is provided that the control unit is configured to control the piston in a first operating mode for generating oscillations and in a second operating mode for generating impact pulses, wherein a strike surface is formed on at least one end side of the working chamber, onto which surface the piston strikes when it reaches at least one return point in order to generate an impact pulse.

The utility model discloses a hydraulic oscillator for oil and gas well drilling, which comprises a hydraulic oscillator body, the hydraulic oscillator body comprises a main body shell and a transmission shaft arranged in the main body shell, a piston pipe is fixedly sleeved on the transmission shaft, and a ball seat is arranged below the piston pipe. The ball seat is slidably sleeved with an installation sleeve fixedly installed in the main body shell, the same friction fixing mechanism is installed between the top of the outer side of the ball seat and the bottom of the piston pipe, the ball seat and the piston pipe are fixedly connected through the friction fixing mechanism, and a conical groove is formed in the top of the ball seat. Through the arrangement of a series of structures, the communicating hole can be stably plugged and the fixation of the piston pipe can be relieved in an electric driving operation mode, the situation that the fixation of the piston pipe cannot be relieved due to the fact that plugging is relieved due to liquid backflow and the liquid impact force is small can be effectively avoided, and the use stability is improved.

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.

A downhole tool, for removing sections of metal tubing, said downhole tool comprising at least one conductive element being arranged to corrode a section of metal tubing using an electrolytic process, said conductive element being made of electric conductive material, an apparatus to establish a connection to the metal tubing, and a source of electrical power.

The present application relates to oilfield coiled tubing operation technical field, and disclose a kind of self-excitation type full metal drilling pulse generator, mainly by power system and oscillation system composition;The power system includes full metal helical stator and rotor;The rotor is rotated in full metal helical stator inside and form helical sealed cavity between each other;The oscillation system includes swing block seat and swing block of screw connection in the bottom of full metal helical stator;The swing block seat and swing block are hot mounted between each other, and swing block seat and swing block are interference fit;Fixed block is arranged in the bottom of the swing block;The top joint is connected in the top of the full metal helical stator, and the rotor end stopper is built-in in the top joint;By reducing drilling tool friction resistance, static friction is converted into dynamic friction, so as to significantly improve drilling speed, ensure the stable control of well trajectory;Adopt full metal stator and rotor power structure, effectively expand temperature use range and corrosion resistance range.