79results about "Vibration drilling" patented technology

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 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.

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.

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 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 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 invention belongs to the technical field of drilling equipment, and particularly relates to drilling equipment for mine geological exploration, the drilling equipment comprises a vibration drilling mechanism, an ore conveying mechanism and a hole wall protection mechanism, and the vibration drilling mechanism performs drilling in a high-frequency vibration mode during working; when the vibration drilling mechanism works, the ore conveying mechanism is automatically driven to work, and part of core ore generated in the working process of the vibration drilling mechanism is collected. In the working process of the ore conveying mechanism, after core ore is collected, the hole wall protection mechanism is automatically driven to work, the geological weak part of the inner wall of a drilled hole is reinforced and protected, the drilling equipment for mine geological exploration replaces a traditional drilling mode in the mine geological exploration process, the drilling efficiency is improved, and the drilling efficiency is improved. The problem that damage to a rock core and a hole wall is large in the drilling process, and consequently use is limited is solved.

The application relates to the technical field of screw drill tools, in particular to a pulse oscillation generating device. The pulse oscillation generating device comprises an anti-dropping joint, a moving valve plate and a second static valve plate arranged in the inner cavity of the anti-dropping joint, and a valve rod. The moving valve plate and the second static valve plate are coaxially arranged and are perpendicular to the flowing direction of the drilling fluid. The cross section of the moving valve plate is a Luer triangle. The second static valve plate is fixed on a static valve seat. The second static valve plate is provided with a square hole. The inner hole side length of the square hole is equal to the inscribed triangle side length of the moving valve plate. One end of the valve rod is arranged downstream of the moving valve plate along the flowing direction of the drilling fluid and is connected with the moving valve plate. The other end of the valve rod is connected with a motor. The motor drives the valve rod to drive the moving valve plate to rotate. The valve rod and the moving valve plate are coaxially arranged. The application provides the pulse oscillation generating device, and the wear resistance of the pulse oscillation structure is enhanced, so as to solve the problem that the contact surface of the valve plate is greatly worn when the moving valve plate and the static valve plate are in contact and friction.

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

The invention relates to the technical field of coal seam tunneling, in particular to three-soft low-permeability coal seam gas anti-reflection equipment and a using method thereof, and provides the three-soft low-permeability coal seam gas anti-reflection equipment aiming at the problem that existing gas anti-reflection equipment cannot be flexibly adjusted according to the occurrence form, the thickness and the trend of a three-soft coal seam. A U-shaped plate capable of lifting up and down is arranged at the upper end of the moving trolley, a supporting plate capable of overturning up and down is arranged at the upper end of the U-shaped plate, a long rotating shaft capable of rotating is arranged at the upper end of the bottom plate, a drill bit is further arranged at the upper end of the bottom plate, and when the long rotating shaft rotates, the drill bit can move towards one side while rotating; the oscillating mechanism comprises an annular wheel, and when the annular wheel deflects, the long rotating shaft rotates so that the drill bit can oscillate while rotating and moving towards one side; the multi-angle drilling adjustment function can be achieved, the coverage and pertinence of gas anti-reflection are greatly improved, the reciprocating oscillation tunneling stroke can be adjusted according to the coal seam hardness, adaptability is extremely high, and safety is higher.

There is a downhole valve for use in a standpipe. A valve body defines a flow path through the valve body. A valve poppet within the valve body is axially movable in a direction parallel with the standpipe when in use. An electrically activated linear activation system is connected to the valve poppet to move the valve poppet axially. The flow through the flow path varies as the valve poppet is moved axially. There is a method of activating a downhole valve for use in a standpipe. A condition downhole is detected using a sensor. The downhole valve is electrically activated based on the detected condition downhole. The valve and method may be used to turn on and off a vibration tool when a drill string is in the horizontal section of a well.

The invention relates to the technical field of engineering construction, and discloses down-the-hole hammer cast-in-situ bored pile construction equipment and process, the down-the-hole hammer cast-in-situ bored pile construction equipment and process comprise a frame module, a track module is arranged on the frame module, a drilling assembly is arranged on the frame module, and the drilling assembly comprises a hydraulic module. According to the down-the-hole hammer cast-in-situ bored pile construction equipment and technology, in order to improve the stability and accuracy of complex stratum hole forming, the drilling assembly is arranged, during construction, the drilling assembly is matched with a center positioning drill bit to make contact with a stratum firstly to complete point fixing, and multiple sets of soil cutting claws are pressed down along with a drilling cylinder to synchronously cut surface layer filling soil and gravel; cut muck can be temporarily collected through the triangular collecting groove, and the situation that the hole site precision is affected by muck scattering is avoided; the electric telescopic sleeve and the sliding pipe are matched with the guiding hydraulic rod and the limiting frame, the perpendicularity of the drilling barrel can be calibrated in real time, and meanwhile the electric telescopic sleeve can drive the drilling barrel to adjust the drilling depth.

The invention relates to a method and to a device for dismantling geothermal probes (3), wherein a probe body (30), consisting of a probe line (31) and solidified insulating filling (32), is reamed by means of a drilling device (1), while irrigation fluid is supplied, which drilling device comprises a drill string (13) which is rotatably driven by means of a drill head (10) and has a tubular cylindrical drill pipe (11) and a core bit (12) attached to the end region of said drill pipe which lies in the drilling direction. According to the invention, a reliable reaming is achieved in that the end-side portion (112) of the drill string (13) having the core bit (12) is rotatably driven without clearance, or at a low clearance of up to a few centimeters, from the probe body (30) or in contact with the probe body (30) - overlapping therewith peripherally at least in part in the direction of the current drilling axis.

The utility model discloses an efficient hydraulic oscillator which comprises an upper joint, the lower surface of the upper joint is fixedly connected with an oscillation main body, the outer surface of the oscillation main body is provided with a groove, and the outer surface of the groove is provided with adjusting teeth; the outer surface of the oscillation body is sleeved with a protective sleeve, the outer surface, close to the groove, of the protective sleeve is fixedly connected with a force release chamber, the inner side wall of the force release chamber is rotationally connected with a rotating wheel, and the rotating wheel is meshed with the adjusting teeth. According to the efficient hydraulic oscillator, through the arrangement of the upper connector, the groove, the adjusting teeth, the protective sleeve, the force release chamber and the rotating wheel, after the oscillation body is connected and installed through the upper connector, the protective sleeve protects the safety of the oscillation body, when the oscillation body works, the oscillation body vibrates up and down in the protective sleeve, and in the process, the vibration body can vibrate up and down; and the rotating wheel can be driven to rotate in the force release chamber by the belt of the adjusting teeth in the groove, so that diffusion and decomposition of partial force are realized, the bearing force of the oscillation main body is reduced, and the service life is prolonged.

This invention discloses an adaptive formation frequency-modulated hydraulic oscillation impact method and system, relating to the field of oil drilling technology. The method includes the following steps: S1, collecting and analyzing data from existing wells in the same block to obtain the optimal impact frequency for each formation in the well to be drilled; S2, converting the optimal impact frequency into mud pulse signals and transmitting them to the downhole impact tool; S3, receiving the mud pulse signals during hydraulic oscillation impact of the downhole impact tool, determining the error between the expected and actual frequency values, analyzing the number of baffles to be controlled, and controlling the expansion and contraction of the baffles in the baffle cavity according to the number of baffles to reduce or increase the volume of the fluid cavity, thereby adjusting the impact frequency of the downhole impact tool. This invention adjusts the impact frequency of the downhole impact tool in real time, enabling the drill bit to achieve optimal rock-breaking effect, improving rock-breaking efficiency, increasing the overall mechanical drilling speed of the drill bit, increasing drill bit lifespan, reducing the number of drilling trips, and reducing drilling costs.

Method for dismantling geothermal probes (3), in which a probe body (30) consisting of probe line (31) and solidified screed filling (32) is overdrilled by means of a drilling device (1) with the supply of flushing fluid, which comprises a drill string (13) driven forward by rotation via a drill head (10) with a tubular cylindrical drill rod (11) and with a drill bit (12) attached to its end region lying in the direction of drilling, characterized in that that the end section (112) of the drill string (13) equipped with the drill bit (12) is advanced rotatingly without or at a small distance of up to a few centimeters, in particular 0 - 20 mm from the probe body (30) or in contact with the probe body (30) - at least partially overlapping it circumferentially in the direction of the current drilling axis, that the drill bit (12), which widens in a funnel shape towards its end face, is set into vibration during drilling while rotating over the drill string (11) in the direction of the drilling axis and that the drill bit (12) is guided along the probe body (30) via a flexible pipe section (111) which is integrated at least in the lower part of the drill string (11).

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 present application belongs to the technical field of drilling equipment, and particularly relates to a drilling equipment for mine geological exploration, which comprises a vibrating drilling mechanism, an ore conveying mechanism and a hole wall protection mechanism. The vibrating drilling mechanism works by high-frequency vibration to drill holes. When the vibrating drilling mechanism works, the ore conveying mechanism is automatically driven to work to collect part of the core ore generated in the working of the vibrating drilling mechanism. When the ore conveying mechanism works, after the collection of the core ore is completed, the hole wall protection mechanism is automatically driven to work to reinforce and protect the weak geological part of the inner wall of the drilled hole. The drilling equipment for mine geological exploration replaces the traditional drilling method in the process of mine geological exploration, avoids the large destructive effect on the core and the hole wall in the drilling process, and thus greatly limits the use.

The embodiments disclosed herein relate to a flow pulse system including a rotor, a stator, an ejector configured for releasable coupling to the rotor, and a nozzle releasablely coupled to the rotor, the nozzle being configured to control fluid flow through the rotor. In some embodiments, the system uses a screen disposed therein, the screen including an inner aperture in fluid communication with a plurality of lobe-shaped cavities along the rotor. In some embodiments, the system uses a fixed valve and an oscillating valve having a plurality of oscillating valve ports in fluid communication with the plurality of lobe-shaped cavities.

The invention relates to the technical field of gravel geologic protection, and provides a gravel geologic body net-shaped reinforcing device and a reinforcing method thereof, a novel anchor rod is used for directly forming a hole, an anchoring device is not pulled out after the hole is formed, and hole collapse is prevented. The multiple anchor rods arranged in the net shape penetrate into the slope of the mountain, net-shaped reinforcing protection is achieved on the gravel geologic body needing to be reinforced, and the phenomenon that the loose gravel geologic body is unstable can be effectively prevented. In the drilling and hole-forming process, the vibration motor is used for enabling the drill rod to vibrate, so that the drill rod easily penetrates through obstacles such as sandy cobbles which are difficult to pass through, and a feasible technology is provided for drilling deep holes; in the drilling process, a high-pressure water flow or high-pressure air flow mode can be adopted, and the engineering problem that drilling is difficult in the drilling process is solved.

A state-adaptive turbine pulse generator (100) comprises: a pulse generating device (2) comprising a turbine housing (21), a turbine shaft (22) concentrically arranged inside the turbine housing (21), a turbine mechanism sleeved on the turbine shaft (22), and a valve disc mechanism arranged at the lower end of the turbine shaft (22), the turbine mechanism being capable of driving the turbine shaft (22) to rotate under the action of drilling fluid, so that the flow area of the valve disc mechanism periodically changes to generate pressure pulses; an automatic control mechanism (1) for controlling the state of the pulse generating device (2); wherein the automatic control mechanism (1) is configured to enable the turbine shaft (22) to be circumferentially stationary relative to the turbine housing (21) during composite drilling, so that the pulse generating device (2) is in a non-working state, and enable the turbine shaft (22) to rotate relative to the turbine housing (21) under the action of the turbine mechanism during sliding drilling, so that the pulse generating device (2) is in a working state.

A system for use with a subterranean well can include a tubular string deployed in the well, at least one downhole tractor connected in the tubular string, and at least one downhole vibratory tool connected in the tubular string. Another system can include a tubular string deployed in a well, and at least one of the group consisting of multiple downhole tractors and multiple downhole vibratory tools connected in the tubular string. A compliance tool can be connected between a downhole tractor and a downhole vibratory tool connected in the tubular string.

The application relates to the technical field of drilling equipment, and discloses a vibration drag-reducing tool for drilling, which comprises an upper joint, a shell and a lower joint, the two ends of the shell are connected with the upper joint and the lower joint respectively, a piston, an upper spring, a movable valve, a lower spring and a filter disc are arranged in the shell, the lower end of the piston is sleeved with the upper spring, the other end of the upper spring is in abutment with the upper end face of the necked 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 is in abutment with the positioning groove of the lower joint; the upper end face of the movable valve is provided with a central through hole and at least one lateral through hole, which are in communication with the inner cavity, the flow area of the central through hole is smaller than the minimum flow area of the piston, the piston is in abutment with the movable valve in the initial state, and the lower end face of the piston can seal all the lateral 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, and a second limiting structure is arranged between the movable valve and the shell to limit the lowest point of the movable valve, so that the resonance amplification of the piston and the movable valve is realized, and the drag-reducing effect is good.

The utility model relates to the technical field of well drilling equipment, in particular to a well drilling casing oscillation resistance reducing device which comprises an eccentric wheel oscillation assembly which is installed at the drill bit end below a casing and provides an oscillation function for the casing. A turbine power generation assembly is arranged on the sleeve and provides a driving source for the eccentric wheel oscillation assembly; a layer of oscillation pipe set is further wrapped outside the sleeve, the two ends of the oscillation pipe set abut against the outer wall of the sleeve in a sealed mode, a sealed space exists between the oscillation pipe set and the sleeve, and the eccentric wheel oscillation assembly and the turbine power generation assembly are located in the sealed space. The outer surface of the oscillation tube group is corrugated, so that the side oscillation effect is improved; pressure sensors are further arranged at the two ends of the oscillation tube set, and the oscillation amplitude is adjusted according to the magnitude of pressure. The utility model solves the technical problem that the drilling casing pipe is difficult to quickly descend due to the resistance of a collapsed soil layer when the drilling casing pipe descends into a drilling channel.