3299results about "Drill bits" patented technology

In one aspect of the present invention, a drill string has a drill bit with a body intermediate a shank and a working face. The working face has a plurality of blades converging at a center of the working surface and diverging towards a gauge of the working face. At least one blade has a cutting element with a carbide substrate bonded to a diamond working end with a pointed geometry. The diamond working end also has a central axis which intersects an apex of the pointed geometry. The axis is oriented between a 25 and 85 degree positive rake angle.

A reamer drill bit includes a body having an outer surface defining a plurality of grooves, and a cutter arm with an interior surface. Each groove extends from a first end of the body to a second end of the body and has at least one groove recess, at least one groove peak connected by a sloped section, and a track arranged in the sloped section. The cutter arm is slidably attached to the body, is configured to expand radially away from the body, and is configured to slide longitudinally relative to the body along the track. The interior surface of the cutter arm includes at least one arm valley, and at least one arm protrusion. The at least one groove recess receives the at least one arm protrusion and the at least one arm valley receives the at least one groove peak.

Provided is a two-part drilling and running tool, a well system, and a method for forming a well system. The two-part drilling and running tool, in one aspect, includes a conveyance, a smaller assembly coupled to an end of the conveyance, and a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly. The two-part drilling and running tool, according to this aspect, further includes a one way mechanism coupled between the smaller assembly and the larger bit assembly, the one way mechanism configured to allow the smaller assembly and larger bit assembly to axially slide in one direction relative to one another and prevent the smaller assembly and larger bit assembly from axially sliding in an opposite direction relative to one another.

This invention relates a drill head (4) for use with a microtunneling apparatus (1) having a cutter bar (12) that is rotatable to produce swarf in a working zone. The drill head (4) includes a movable imaging device (46) that is adapted to capture images in the working zone (13). The imaging device (46) is adapted to move from a position within an annular shell (11) to a position external from the annular shell (11).

This invention relates to a reamer assembly (6) for enlarging a substantially horizontal pilot hole (14) in the ground to produce a bore hole (18), including a cutter (21) which is rotatable about an axis X-X. A gear box (20) is positioned on a first side of the cutter (21) for interacting with a drive shaft (33) which is rotated about the axis X-X by a drive apparatus (2) outside the pilot bore hole (14) and a body (15) positioned on a second side of the cutter (21) for transferring thrust from a thrust apparatus (4) outside of the enlarged bore hole (18) to the cutter (21).

This invention relates to a drill string (32) for use with micro tunnelling apparatus (1) having a cutter (21) at a distal end of the drill string (32) and external drive mechanism (2) at a proximal end of the drill string (32). The drill string (32) being formed by a plurality of connected string segments (13), each string segment (13) with a drive shaft (33) aligned along the central axis for rotation there about and an elongate casing (34) that houses the drive shaft (33). The front end of one string segment (13) is adapted to connect with the back end of another string segment (13) to form the drill string (32) by way of a latch connection, the latch connection being adjustable so as to vary the tolerance between said front end of one string segment (13) and said back end of another string segment (13) while connected.

The invention relates to the field of constructional engineering concrete detection, in particular to a reamer bit and a concrete repairing method.The reamer bit comprises a mounting base, at least two drill arms and at least two supporting rods; one end of the drill arm is hinged with the mounting seat, a fixing pipe is arranged between the hinge points of the drill arm and the mounting seat, the fixing pipe is connected with a positioning rod in a sliding manner, one end of the supporting rod is hinged with the positioning rod, and the other end of the supporting rod is hinged with the drill arm. When the reamer bit is used, the angle of the drill arm can be flexibly adjusted by pressing the positioning rod, the hole diameter of a reaming hole can be accurately controlled according to actual repairing requirements, and the reamer bit is suitable for repairing scenes of coring holes of different sizes and depths; the formed horn mouth with the wide inside and the narrow outside can be embedded into original concrete like a tenon after concrete is poured, the combining capacity of new concrete and old concrete is greatly improved, and it is guaranteed that a repaired area is not prone to separation.

The invention discloses intelligent low-clearance cast-in-place pile construction equipment, system and method. The construction site scanning and model building, paying-off and point position projection and correction, automatic construction path planning, drilling positioning, preparation work before drilling (burying of a soil layer structure integrity evaluation sensor), drilling construction and accurate control of perpendicularity and drilling depth, drilling lifting and in-hole environment detection are sequentially completed. And therefore, the intelligent construction operation of the cast-in-place pile is completed, the equipment has the construction characteristics of miniaturization and large drilling depth, and the intelligent construction operation under the low clearance working condition is perfectly achieved.

The invention relates to the technical field of mining machinery, in particular to a gold mine mining blasting automatic trepanning device and a trepanning method.The gold mine mining blasting automatic trepanning device comprises a base plate, the base plate is an assembly carrier of the drilling device and can be externally connected with an engineering vehicle or an engineering mechanical arm, a mounting frame is fixedly mounted on the base plate, and the mounting frame is a frame body with an opening in the top; the guide frame is fixedly arranged at the top of the mounting frame, and the guide frame is an annular frame body internally provided with a clamping groove; the gear ring is rotationally mounted in a clamping groove in the guide frame; and the rotating frame is fixedly arranged in the gear ring. By means of the spiral blades on the drill rod, fragments generated in the drilling process are synchronously pushed out, the situation that the fragments are accumulated near the drill bit to affect efficiency is prevented, meanwhile, cooling water is allowed to enter a drilling area through the arrangement of the flow guide through hole and the connecting pipe in the drill bit, the fragments are helped to be flushed out of the hole, and the drilling efficiency is further improved.

Methods and systems are provided that calculate data representing an estimate of formation strength while drilling. The methods and systems employ a drill bit that is instrumented with a first sensor and a second sensor. A processor is configured to i) determine and store first data representing cutting forces acting on a cutting element of the drill bit while drilling based on measurements of the first sensor while drilling, ii) determine and store second data representing depth of cut of the drill bit while drilling based on measurements of the second sensor while drilling, and iii) process the first data and second data to generate and store data representing contact stress against the formation while drilling. This resultant data can be used as an estimate of formation strength. This estimate of formation strength is similar to UCS and can be used in oilfield operations / planning, such as formation characterization while drilling, or drilling efficiency analysis while drilling.

A milling bit valve is disclosed for improved debris collection within a wellbore. The check valve can be part of a debris removal tool that includes a motor, pump, gearbox, bailer, milling bit, check valve, and rotational shafts. In an example, on its uphole end, the milling bit can be coupled with the check valve. On its downhole end, the milling bit can be configured for debris removal with cutting edges. The downhole end can also include openings that provide access to an internal cavity of the milling bit. The internal cavity can extend the entire length of the milling bit. This allows the pump to pull drilling fluid into the bailers through the milling bit and check valve. As a result, the debris removal tool can simultaneously remove obstructions in a wellbore and collect debris from the obstruction removal.

The invention discloses a laser-assisted mechanical drilling rock breaking system which comprises a drill rod, a cooling channel distributed along the length of the drill rod is arranged in the drill rod, a laser emitting head is arranged at the position, corresponding to the cooling channel, of the top of the drill rod, and a mechanical drill bit is fixedly connected to the lower end of the drill rod. The laser emitting head emits laser beams in the drill rod in the direction towards the mechanical drill bit, a chip removal through hole is formed in the center of the mechanical drill bit, the chip removal through hole and a cooling channel in the drill rod are coaxially arranged, a plurality of laser spraying holes are evenly formed in the mechanical drill bit, and the laser emitting head is connected with a laser generator through a laser transmission pipe. The laser generator is electrically connected with a control terminal through a wire. The problem that in the prior art, single laser rock breaking cannot be coordinated with mechanical rock breaking equipment during rock breaking, so that the rock breaking efficiency is poor or the equipment is overheated is solved. The invention further discloses a rock breaking method of the mechanical drilling rock breaking system based on laser assistance.

The utility model belongs to the technical field of exploration drilling tools, in particular to a geological coring drilling tool capable of realizing continuous drilling along with a casing, which comprises a casing body, a drill rod sleeved in the casing body, a female joint fixedly connected to the bottom end of the drill rod, a male joint in threaded connection to the bottom end of the female joint, a reaming shell fixedly connected to the bottom end of the male joint, and a drilling rod connected with the reaming shell. A reaming drill bit is arranged on the surface of the reaming shell, an adjusting mechanism is arranged between one side of the reaming drill bit and the interior of the reaming shell, and fixing rods are fixedly connected to the two sides of the bottom of the reaming shell. The external expanding drilling diameter of the expanding drill bit can be adjusted, so that holes with different sizes can be drilled according to requirements, the drilling device is more flexible in use and very convenient and rapid to adjust, in addition, the pilot hole drill bit can be conveniently disassembled and assembled, and the drilling efficiency is improved. Therefore, the damaged collar hole drill bit can be independently detached to be replaced, operation is easy, and the maintenance cost is saved.

The invention relates to an expanding drill device for expanding a pilot bore produced from a starting point to a target point in the ground along a specified drilling line by moving the expanding drill device (10) along the specified drilling line in order to produce a bore in the ground or in rock for introducing a pipeline or a supporting system into the expanded bore, comprising: a housing (11); a drill head (14) that has a cutting wheel (15) which is arranged on the drill side (21) of the expanding drill device (10) so as to be rotatably mounted and driven about a rotational axis and relative to the housing and on which at least one drill tool (16) for loosening the ground or the rock is arranged; and a drill-side connection for producing a connection to a pipe section located in the pilot bore on the drill side, wherein the drill side (21) centrally has at least one receiving chamber (24) for the loosened ground or the loosened rock, said receiving chamber being connected to a material conveyor device of the expanding drill device (10) for the loosened ground or the loosened rock via at least one removal opening (30); the drill side (21) has at least one drill chamber (38) that is equipped with the cutting wheel (15), which is arranged about the receiving chamber (24); the cutting wheel (15) has an annular design and is rotatably arranged about the central receiving chamber (24); and the receiving chamber (24) is connected to the drill chamber (38) via at least one conveyor opening (41) so that the loosened ground or the loosened rock can be conveyed into the receiving chamber (24) through the conveyor opening (41). According to the invention, at least one crusher (46) is provided in the drill chamber (38); the crusher (46) has crusher strips (49) on the rotatable cutting wheel (15) which move together with the cutting wheel (15) and crusher strips (47) on the receiving chamber (24) side facing the drill chamber (38) which are rigidly arranged together with the receiving chamber (24); and the crusher strips (47, 49) are arranged relative to one another such that a crusher gap (50) is produced between the crusher strips.

The invention belongs to the technical field of coal seam pressure relief and permeability improvement, and relates to a core rod jacking type mechanical reaming device and method, and the device comprises a core rod jacking type reamer, a core rod drill rod, a combined type rotary water tail and a hydraulic propeller which are sequentially connected from head to tail. The core rod jacking type reamer adopts a core rod pushing linkage structure, and the opening or closing state of a tool arm is accurately controlled; the core rod drill rod provides core rod guiding conduction, and deep hole reaming is achieved. The composite rotary water tail is used for rotary dynamic sealing connection of the drill rod core rod and the hydraulic propeller; the hydraulic propeller is used for being connected with hydraulic power and providing hydraulic propelling power for the guide rod. According to the device, hydraulic pressure serves as power to achieve rapid unfolding and retracting of the reaming cutter, the reaming speed is increased, the gas extraction drilling and reaming requirements are met, stable operation can be achieved under the complex geological condition, and the high field popularization value is achieved.

The utility model provides an efficient drill bit for a mine drilling machine, which belongs to the technical field of drill bits and comprises a drill rod and a drill bit body arranged on the drill rod, a flange ring is mounted on the outer wall of one end of the drill rod, and a fixing seat is arranged at one end of the drill rod. According to the utility model, the crushing teeth arranged on the drill bit body are matched with the buffer springs, so that the positions of the crushing teeth can be effectively and automatically adjusted according to the hardness of external rocks and the drilling pressure, thereby reducing greater abrasion of the crushing teeth caused by hard rocks or abnormal loads, prolonging the service life of the drill bit, and improving the drilling efficiency at the same time; the spiral blade arranged outside the drill rod close to one end of the mounting seat continuously lifts the waste drilling fluid between the drill rod and the well wall in the process of synchronously rotating along with the drill rod, so that rock debris can be quickly and effectively removed from a drill hole, and the rock debris is prevented from being accumulated at the bottom of a drill bit to reduce the rock breaking efficiency; meanwhile, friction between the drill bit and rock is reduced, abrasion of the drill bit is reduced, and the drilling effect of the drill bit is improved.

The invention discloses a hole expanding device for geological exploration, which comprises a rack, an assembled drill rod and a hole expanding assembly, and the rack further comprises a lifter, a base, a driving device and a driving motor A; the assembled drill rod is formed by assembling a plurality of same unit drill rods up and down according to the required drilling depth, and a rotating shaft capable of controlling the reaming assembly to be opened and closed is rotationally mounted in the center of the assembled drill rod; the reaming assembly further comprises a drill rod base, a drill bit, a reaming structure, a discharging channel and a cleaning channel. The device has the functions that the device is provided with the assembled drill rod, different drilling depths can be met, assembly and disassembly are convenient and fast, most of a reaming structure of the device is hidden in the drill rod base, soil and rock generated in the drilling and reaming process can be discharged through the discharging channel, the influence of the soil and rock falling from a hole is extremely small, and meanwhile the drilling efficiency is greatly improved. In addition, the device can wash mudstone through the cleaning channel on the drill rod seat, the service life of the device can be prolonged, and the replacement cost is reduced.

The invention relates to the technical field of drilling devices, and discloses a coal mine goaf working face drainage hole drilling device which comprises a base, and a plurality of supporting stand columns are fixedly arranged at the bottom of the base. When the device is used and used for drilling operation, the reaming function can be achieved through overturning of the drilling pieces, the supporting barrel can smoothly enter a hole, slurry, drilling slag and cooling water can be rapidly discharged through the flow guide grooves in the supporting barrel, and the situation that a drill bit is stuck due to too much drilling slag is avoided; according to the drilling tool, the phenomenon that the drilling tool and the supporting barrel are clamped in the drilling process can be avoided, in the drilling process, through the interaction of the clamping groove and the trapezoidal clamping block, the pointed-end inserting rod is inserted into the inner wall of the hole to fix the supporting barrel, the supporting barrel is left in the hole, the hole is effectively prevented from collapsing through supporting at different positions, and meanwhile the drilling tool is convenient to use. In the pulling-out process, friction between the drill rod and the supporting roller drives the cleaning roller brush to rotate, and the outer wall of the drill rod is cleaned.

The invention relates to the technical field of engineering machinery, in particular to a low-speed large-torque energy-saving tunneling rotary table which comprises a drilling barrel, a plurality of protruding blocks are fixedly connected to the inner wall of the drilling barrel, a containing groove extending into the protruding blocks is formed in the outer side of the drilling barrel, the bottom of the containing groove is open, and a drill bit assembly with the adjustable angle is installed in the containing groove; the drill bit assembly comprises a sliding plate slidably connected with the inner wall of the storage groove, an extension block with one end movably extending to the outside of the protruding block is arranged at the bottom of the sliding plate, cutting teeth are fixedly connected to the bottom of the extension block, and a limiting assembly used for limiting the sliding plate is installed in the storage groove. The limiting assembly comprises a plurality of threaded rods fixedly connected with the bottom of the inner side of the containing groove, the threaded rods are sleeved with arc-shaped plates, and the two ends of each arc-shaped plate are provided with round holes corresponding to the threaded rods. The technical problems that according to an existing tunneling drilling disc, it is difficult to adjust the angle of a drill bit to better crush a hard rock stratum, and the replacement frequency and difficulty of the drill bit are reduced are solved.

The systems and methods presented herein include a sidewall coring tool assembly that includes a coring shaft having an internal cavity and configured to be coupled to a coring motor shaft of a coring motor at a first axial end of the coring shaft. The coring shaft includes a plurality of scoops disposed circumferentially on a first external surface of the coring shaft. Each scoop of the plurality of scoops forms a conduit from an exterior of the coring shaft to an interior of the coring shaft. The sidewall coring tool assembly also includes a coring bit coupled to the coring shaft at a second axial end of the coring shaft. The sidewall coring tool assembly further includes a static sleeve coupled to the coring motor and disposed radially within the internal cavity of the coring shaft.

Provided herein is PDC drill bits for engaging subterranean formations and for drilling wellbores, wherein the PDC drill bits are adapted to reduce erosion of the drill bit face by the inclusion of openings in a portion of the gauge of the PDC drill bit. The present disclosure also relates to systems and methods of drilling subterranean formations using the drill bits disclosed herein.

The utility model discloses an underground drilling and caving device, which comprises a vertically arranged columnar main body seat and an expansion wing arranged on the columnar main body seat, the main body seat comprises a cylindrical body, the expansion wing comprises a telescopic rod vertically arranged in the body, the upper end of the telescopic rod is vertically and elastically connected with the body, and the lower end of the telescopic rod is connected with a push block; an installation opening is formed in the outer wall, corresponding to the push block, of the lower portion of the body, the expansion wing further comprises a blade wing hinged to the interior of the installation opening, and the blade wing is arranged to be capable of being unfolded outwards under the pushing effect of the push block. By means of the mechanical cave-making method, the cave-making strength can be enhanced, a coal wall can be effectively cut when the coal seam hardness is large, the size of a cave-expanding space can be fixed by stabilizing water pressure, the cave-expanding space can be quantized through the blade unfolding radius, the operation efficiency and accuracy are improved, the operation risk is reduced, and drilling and cave-expanding are stable and reliable; operation faults and safety risks are reduced, and safety and quality of gas drainage operation are improved.

The invention relates to cast-in-place pile reaming equipment and a reaming construction method.The cast-in-place pile reaming equipment comprises an outer pipe, an inner pipe and a drill bit, a first hydraulic cylinder corresponding to the inner pipe is arranged in the outer pipe, the drill bit is located at the bottom of the inner pipe, the inner pipe moves up and down along the outer pipe through the first hydraulic cylinder, and an upper flange is arranged on the outer pipe; an upper flange is arranged on the inner pipe, a lower flange corresponding to the upper flange is arranged on the inner pipe, pressing arm assemblies which are hinged to each other are arranged between the upper flange and the lower flange, reaming plates are arranged on the pressing arm assemblies, and alloy blocks are arranged on the reaming plates. According to the cast-in-place pile reaming equipment and the reaming construction method, through multi-point stress and dynamic angle adjustment, stable supporting and fixing are achieved through the pull rope assembly and the winding assembly, directionality is ensured through the guide assembly, the reaming efficiency and stability are remarkably improved, safety and equipment adaptability in the construction process are enhanced, and the construction efficiency is improved. And meanwhile, the construction quality and the improvement of the overall performance are ensured.

The invention relates to the technical field of drilling equipment, in particular to an impact composite drill bit which comprises a drill bit body, a rotating shaft, a center wheel and main blades, a mounting groove with an upward opening is formed in the center of the upper end of the drill bit body, the horizontally-arranged rotating shaft is rotatably mounted in the mounting groove, and the center wheel is fixedly mounted on the outer side of the middle of the rotating shaft. The impact composite drill bit is reasonable and compact in structure, during use, the lower end of the impact composite drill bit is connected with a pipe string and then descends into a target position in a well, when the drill bit body makes contact with a rock stratum, the center wheel starts to rotate, the section of the center wheel is an arc triangle, and when the center wheel rotates, the high point and the low point of the section triangle of the center wheel are continuously switched; the main cutting teeth on the main cutter wings can impact the rock stratum along with conversion of the high point and the low point, the rock stratum crushing effect is achieved, the working efficiency of the impact composite drill bit is improved, the friction force in the center of the impact composite drill bit can be reduced when drilling is conducted in the mudstone stratum, and therefore the drilling efficiency is improved.

The invention discloses a directional deflecting wire-line coring drilling device and a directional deflecting wire-line coring drilling method, relates to the field of drilling of soil layers or rocks, and solves the problems that an existing drilling device is high in deflecting direction control difficulty and small in deflecting amplitude. According to the technical scheme, the directional deflecting wire-line coring drilling device comprises a deflecting short section, a top short section and a bottom short section, the top short section and the bottom short section are arranged at the upper end and the lower end of the deflecting short section, a drill rod connector is arranged at the upper end of the top short section, and the lower end of the bottom short section is connected with a hollow motor. A cylindrical coring cavity is formed in the top short section, the deflecting short section, the bottom short section, the hollow motor and the drill bit; the top short section and the deflecting short section, every two adjacent deflecting short sections and the deflecting short section and the bottom short section are connected through deflecting connecting structures, two pull rope holes are formed between the top short section and the upper end face and the lower end face of each deflecting short section, pull ropes penetrate through the pull rope holes, and the postures of the deflecting connecting structures can be adjusted through the pull ropes. And linear drilling and directional drilling are realized.

Provided is a two part drilling and running tool, a downhole tool, a well system, and a method for forming a well system. The two part drilling and running tool, in at least one aspect, includes a smaller assembly coupled to an end of a conveyance, the smaller assembly having a spline or slot located along an entire length (LS) thereof. The two part drilling and running tool, in accordance with this aspect, further includes a larger bit assembly slidably coupled to the conveyance, the larger bit assembly including an other of the slot or spline, wherein the spline or slot in the smaller assembly and the other of the slot or spline in the larger bit assembly are configured to engage one another to rotationally fix the smaller assembly relative to the larger bit assembly as the smaller assembly and the larger bit assembly slidingly engage one another.

The disclosure describes an expanding drill device for expanding a pilot bore by moving the expanding drill device along a specified drilling line comprising: a housing; a drill head that has a cutting wheel which is arranged on the drill side of the expanding drill device so as to be rotatably mounted and driven about a rotational axis and relative to the housing and on which at least one drill tool for loosening the ground or the rock is arranged; and a drill-side connection for producing a connection to a pipe section located in the pilot bore on the drill side, wherein the drill side centrally has at least one receiving chamber for the loosened ground or the loosened rock, said receiving chamber being connected to a material conveyor device of the expanding drill device.

The invention discloses a petroleum drilling PDC drill bit, and relates to the technical field of drilling PDC drill bits, the petroleum drilling PDC drill bit comprises a drill bit main body, a blade main body and a liquid conveying pipeline, an adjusting assembly is arranged between the drill bit main body and the blade main body, and the adjusting assembly is used for automatically adjusting the rotating speed and bit pressure of the blade main body; the adjusting assembly comprises a conical block fixedly installed on the inner wall of the drill bit body, a rolling bearing is fixedly installed on the inner wall of the drill bit body, and a gear disc is rotationally installed on the rolling bearing. The drilling tool has the advantages that before drilling of the blade body, the rotating speed and the drilling pressure of the blade body can be adaptively adjusted according to the drilling torque of the blade body, and meanwhile when continuous drilling of the blade body is conducted and the drilling torque is increased or decreased, the rotating speed and the drilling pressure of the blade body are adaptively adjusted in time through cooperation of the adjusting assembly and the sensing assembly; therefore, the well drilling effect of the blade body can be improved, abrasion of the blade body caused by long-time use is reduced, and the service life of the blade body is prolonged.

The utility model discloses a cutting type cutting tooth socketed pile drill bit which comprises a drill bit seat and is characterized in that a drill bit main body is assembled at the bottom end of the drill bit seat and comprises a drill tip, a hollow drill pipe, side wings, rib plates, cutting teeth and a circular ring; the hollow drill pipe is sleeved with the circular ring, and the drill tip is assembled at the bottom end of the hollow drill pipe. The ring is connected with the hollow drill pipe through a rib plate and is connected with the drill tip through a side wing; cutting teeth are assembled at the bottom of the drill tip, the middle parts of the side wings and the upper part of the ring; alloy ends are assembled at the end parts of the cutting teeth, and alloy points are arranged on the outer walls of the alloy ends; according to the cutting type cutting tooth socketed pile drill bit, the perpendicularity of formed holes is guaranteed; meanwhile, the cutting tooth drill bits with fixed cutting angles at the bottom, the side wings and the like are used for breaking rocks, line contact of a common scraper drill bit is improved into point contact of the cutting tooth drill bits, the pressure intensity is increased, the overall cutting capacity is improved, meanwhile, limitation of the diameter of a drilled hole is avoided, and different pile diameter requirements can be met by additionally installing the cutting tooth drill bits.