128 results about "Hole opener" patented technology

Methods of forming cutter assemblies for use on earth-boring tools include sintering a cone structure to fuse one or more cutting elements thereto. In some embodiments, one or more green, brown, or fully sintered cutting elements may be positioned on a green or brown cone structure prior to sintering the cone structure to a final density. Cutter assemblies may be formed by such methods, and such cutter assemblies may be used in earth-boring tools such as, for example, earth-boring rotary drill bits and hole openers.

A hole opener including a tool body having upper and lower ends. The upper and lower ends may be coupled to adjacent drilling tools. At least two blades are formed on the tool body and are arranged so that the hole opener is positioned concentric with a wellbore, and cutting elements are located on the blades. The at least two blades and the cutting elements are arranged to increase a diameter of a previously drilled wellbore.A hole opener including a tool body having upper and lower ends. The upper and lower ends may be coupled to adjacent drilling tools. At least two blades are formed on the tool body and are arranged so that the hole opener is positioned concentric with a wellbore, and cutting elements are located on the blades. The hole opener includes a pilot hole conditioning section. The pilot hole conditioning section includes at least two pilot blades formed on the tool body in a position axially ahead of the blades. The pilot blades include a taper at a downhole end and gage pads positioned at selected diameters. At least one cutting element is disposed on the pilot blades.

A multi-function downhole apparatus is described which comprises a tubular main body having at least one recess formed in its outer surface. The recess is adapted to receive any of a set of interchangeable tool elements, which include stabiliser blades of different radial sizes, cleaning elements, roller reaming tool elements, a hole opener tool element, and a drilling casing shoe element. In particular, the apparatus allows drilling operations and wellbore cleaning operations to be carried out using the same tool body.

The invention relates to well reamer for borehole reaming within a specified interval. The well reamer has a housing with inclined slots, radial holes and a central straight-through channel, in which a spring-loaded rod with holes in the upper and lower parts is located. The upper holes of the rod are covered when the operating elements are extended into an operating position. A plurality of legs, including cutters rotatably supported on the legs, are moved by pistons between an operating position and a transport position along the inclined slots. Free-ends of the pistons may be connected to the rod by sliders, which are movable radially into openings in the rod to connect the rod to the pistons to move the rod with the legs.

A down-hole tool guide is disclosed for deflecting various down-hole tools having a tendency to hang or bind in uncased bore holes. The down-hole tool guide or ball guide assembly, being adaptive to the down-hole tools, extends forwardly there from and includes an eccentric rotatable ball and high-pressure jets. In cases where the guide is used to guide casing, the ball guide assembly is constructed from a drillable material thereby allowing the hole bore to be extended beyond the last set casing depth without side deviation from the original bore.

The invention provides a variable liquid-fertilizer hole-application machine of steering wheel type, comprising a frame, a liquid-fertilizer tank, a GPS receiving antenna, a computer, an overflow valve and a diaphragm pump. A pressure-regulating valve is arranged on the diaphragm pump. The variable liquid-fertilizer hole-application machine of steering wheel type is characterized in that a high-pressure shaft tube, an electromagnetic valve and a liquid-fertilizer hole-application controller connecting the high-pressure shaft tube and the electromagnetic valve are additionally arranged; the high-pressure shaft tube is mounted on the frame and respectively communicated with the liquid-fertilizer tank by the overflow valve and the diaphragm pump; two hole-opening application wheels are mounted at both ends of the high-pressure shaft tube; each hole-opening application wheel comprises a wheel disc, guiding hole openers fixed on the wheel disc and a travel switch mounted on each guiding hole opener; the wheel disc is internally provided with a guiding hole corresponding to each guiding hole opener; the electromagnetic valve is axially mounted at both ends of the high-pressure shaft tube; the openings of the electromagnetic valve face to the guiding holes; the control end of the electromagnetic valve is connected with the travel switch; and the output end of the computer is connected with the liquid-fertilizer hole-application controller. The invention can directly apply the liquid fertilizer into soil surrounding various crop roots, can adjust application depth and application amount and has excellent working performance.

The invention relates to a construction method of rotating drilling dry-drilled piles of a sand soil interlayer foundation. The construction method comprises the steps of (1) selecting a drilling machine model and a drill bit according to the geological conditions; (2) leveling a construction site, clearing debris and performing leveling and rolling compaction; (3) performing measurement and setting out on pile locations and checking and retesting traverse points and leveling points before the measurement and setting out; (4) embedding pile casings; (5) targeting the well embedded casings and staring a motor to perform clockwise rotating drilling; (6) inspecting the diameter, depth and perpendicularity of holes through a rib hole opener; (7) hoisting rib to place the rib into the holes; and (8) utilizing retarded concrete to perform perfusion. The construction method of the rotating drilling dry-drilled piles of the sand soil interlayer foundation has the advantages of enabling the complicated processes to be reduced, improving the construction efficiency and quality of hole piles and being beneficial to the standardization of the rotating drilling construction process.

The invention discloses a hydraulic hole opener and a hole opening method. The hydraulic hole opener comprises an upper connector 1, the upper connector is connected with the upper end of a body 7 through threads, the lower end of the body is connected with a lower connector 22, an upper ball seat 4 is arranged in the upper connector and is connected with the upper connector through a dowel pin 3, three cutter wing grooves distributed in 120 degrees are formed in the body, a cutter wing 11 is arranged in each cutter wing groove, a mandrel 9 is arranged in the body, a piston 15 sleeves the bottom of the mandrel, a retainer ring 12 is arranged at the top of the piston, and hole opening operation is finished by pushing the cutter wings to expand outwards through the retainer ring. The hole opener is simple in structure, convenient to disassemble and capable of folding the unfolded cutter wings forcedly. Reliability of the cutter wings can be improved by changing a mud channel, cutter wing blocking possibility is reduced, cutter wing deformation is small, and the service life of the cutter wings and the body are prolonged. The safety of the hole opener is greatly improved, and the drill blocking problem caused by the fact that the cutter wings cannot be folded due to fault is solved.

The invention discloses a design method of a three-times-drilling well bore structure of a narrow pressure window well in deep water. The design method comprises the following steps that S1, drillingof a surface layer is carried out, specifically, a drill and a hole opener are adopted to drill into the surface layer, after pulling out the drill, a drilling riser string with the wall thickness being 31.75-38.1mm is placed down into the mud surface, and the upper portion of the drilling riser string is connected with a mud mat and then cement slurry is injected for cementing; S2, first-time-drilling is carried out, specifically, the drill is used for drilling in, after pulling out the drill, a first -time-drilling pipe string is placed down, the upper portion of the of the first-time-drilling pipe string is connected with a wellhead, a wellhead seat is hung at the upper portion of the drilling riser string, and the upper portion of the wellhead is connected with an underwater blowout preventer and an upper portion marine riser and then the cement slurry is injected for the cementing; S3, second-time-drilling is carried out, specifically, the drill is used for drilling in, after pulling out the drill, a second-time-drilling pipe is placed down, the first-time-drilling pipe is hung at an upper casing shoe and the cement slurry is injected for the cementing; and S4, third-time-drilling is carried out, specifically, the drill is used for drilling in, the drill is pulled out after drilling to a target layer, and a third-time-drilling casing with the wall thickness being 12.7-20.24 mm is placed down and then the cement slurry is injected for the cementing. The design method of the three-times-drilling well bore structure of the narrow pressure window well in the deep water solves the problem of low safety and unreasonable cost control of a conventional three-times-drilling well bore structure.

The invention relates to the technical field of petroleum drilling equipment, in particular to a downhole hole opener. The downhole hole opener comprises a shell, a main shaft, a telescopic tool mechanism and a tool control device. The shell is a hollow shell with the two ends open. A tool outlet hole is formed in the side wall of the shell. The main shaft is arranged in the shell and spaced from the side wall of the shell. The telescopic tool mechanism is arranged on the main shaft in a sleeving mode, and a tool body of the telescopic tool mechanism is located in the tool outlet hole. The tool control device is arranged in the shell and is in transmission connection with the telescopic tool mechanism to drive the telescopic tool mechanism to move so that the tool body of the telescopic tool mechanism can conduct reciprocating motion in the opening direction of the tool outlet hole. The tool body can stretch out and also can retract back, the operating state of the hole opener can be controlled accordingly, and the working state of the hole opener can be adjusted on the ground.

A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the drill bit. The reamer is adjustable between a first diameter and a second diameter that is larger than the first diameter. The hole opener is coupled with, and positioned uphole from the reamer.

The invention relates to a blowout preventing hole opener for a casing pipe, and belongs to the fields of petroleum and natural gas machinery. The blowout preventing hole opener structurally comprises a pressing sleeve type pipe joint, a gate valve and a detachable drilling device, wherein the pressing sleeve type pipe joint is arranged on the side wall of the casing pipe and is fixed by safety slips; the gate valve and the detachable drilling device are sequentially connected behind the pressing sleeve type pipe joint. The blowout preventing hole opener is characterized in that the pressing sleeve type pipe joint is pressurized and locked on the lateral surface of the casing pipe by means of the safety slips and realizes sealing by means of a pressure sealing sleeve embedded in the end; a hoop connector is arranged on one end face of the pressing sleeve type pipe joint, and is positioned and connected with the gate valve to form an operation channel of a drill bushing and a drill bit. The blowout preventing hole opener is used for emptying gas and liquid in a well or a pipeline; by using the blowout preventing hole opener, the working efficiency is improved, potential safety hazards are eliminated, and safe production is guaranteed.

The invention discloses a crop fertilizing device. The crop fertilizing device comprises a rack, a baffle, a fertilizer box and fertilizing mechanisms. An air cylinder is arranged at the bottom of thebaffle, a rack is fixed to the air cylinder, a linkage plate is fixed to one end of the rack, flexible shafts are rotatably connected to the rack, first gears meshed with the rack are connected to the outer circumferences of the flexible shafts through one-way bearings, and the fertilizing mechanisms are connected to the linkage plate; each fertilizing mechanism includes a fertilizing pipe, a stirring box and a hole opener, a third gear and a fourth gear which are meshed with each other are arranged in each hole opener, multiple discharge holes are formed in each fertilizing pipe, and a stirring rod is connected to the bottom of each fertilizing pipe; the linkage plate is hollow and is fixedly connected to the outer walls of the stirring boxes, and the flexible shafts extend into the linkage plate and penetrate through the walls of the stirring boxes to be connected with the corresponding third gears; the fertilizing pipes are provided with first bevel gears meshed with second bevel gears, and conveying mechanisms are arranged between rotating shafts of the second bevel gears and the flexible shafts on the first gears. The device can solve the problem of a seedling burning phenomenon of crops, and the absorption rate of the crops on fertilizer is increased.

The invention discloses an underground pipeline repairing device and a repairing method thereof. The underground pipeline repairing device comprises a cone-shaped expanding hole opener and a propelling pull rod. The interior of the cone-shaped expanding hole opener is funnel-shaped. A leakage opening at one side is vertically extended to an axis of the cone-shaped expanding hole opener so as to form a cross section. The cross section, along a horizontal direction of the axis of the expanding hole opener, is provided with a first annular limiting bulge. A circle center of the first annular limiting bulge is positioned in the axis of the expanding hole opener. The propelling pull rod is sheathed in the cone-shaped expanding hole opener. One side of the propelling pull rod is provided with alocking button device. The propelling pull rod drives the cone-shaped expanding hole opener to be moved in a pipe. While the cone-shaped expanding hole opener passes through a collapsed position, thecone-shaped expanding hole opener is capable of extruding a collapsed soil body into the surrounding soil body by using geometrical characteristics thereof and a mechanical principle, and achieving apurpose of repairing a collapsed pipeline.

The invention relates to the field of drilling equipment, and provides a casing drilling system and a casing drilling method. The purpose is to solve the problem that according to an existing drillingtechnology, pollution to surrounding soil caused by drilling fluid, oil leakage and the like is likely to occur in the drilling process. The casing drilling system comprises a positive displacement motor drill, and the lower end of the positive displacement motor drill is connected with a drill head used for drilling a hole and a hole opener used for expanding the hole. A casing pipe sleeves thepositive displacement motor drill at an interval, and the positive displacement motor drill is isolated from an environment borehole wall. A channel is formed by the spacing between the casing pipe and the positive displacement motor drill. The lower end of an internal runner, used for supplying the drilling fluid, in the positive displacement motor drill is communicated with the lower end of thechannel to form a fluid cycle. The casing drilling system and the casing drilling method have the advantages that drilling is efficient, and pollution to the surrounding environment can be avoided.

The invention discloses a hole opener adjustable in hole diameter. A plurality of tool grooves are formed in the upper surface of a tool rest; the inner ends of the tool grooves extend to the position of a through hole, and the outer ends of the tool grooves extend to the side face of the tool rest; a tool groove vertical locking structure is arranged on the inner side face of each tool groove; an annular adjusting disk is coaxially arranged in the tool rest; a track in the shape of a spiral line is arranged on the upper surface of the annular adjusting disk, penetrates from the position below the tool grooves and is perpendicular to the direction of the tool grooves; a hole drilling tool body comprises a tool column and a tool bit; a tool column vertical locking structure is arranged on the side face of the tool column; the tool rest is provided with an adjusting hole; an outer end opening of the adjusting hole is in the outer surface of the tool rest; the inner end of the adjusting hole is arranged in the tool rest; a gear is arranged at the inner end of the adjusting hole; a gear ring is arranged on the lower surface of the annular adjusting disk; and the gear is engaged with the gear ring. According to the hole opener adjustable in hole diameter, the size of the diameter of an opened hole can be freely adjusted, the original situation that numerous drill bits in different fixed hole diameter specifications are needed when a hole opener product set material is manufactured is changed, materials are saved, and the carrying space is saved.

The present invention provides a tobacco seedling field transplanter. It includes a main rod, the upper end of said main rod is equipped with a transverse handle, the lower end of said main rod is connected with a hole opener, and said hole opener is formed from front board and rear board. Besides, said invention also provides its concrete operation method.

An improved hole opener assembly for horizontal drilling is disclosed that is less prone to failure as a result of cone arm break out or pocket side wall fracture. The interface between the cone arm and the pocket employs a key and slot configuration with a tighter fit than between the arm and the pocket to reduce the stress on the pocket side wall during drilling.

Methods of forming cutter assemblies for use on earth-boring tools include sintering a cone structure to fuse one or more cutting elements thereto and having a hardened land area. In some embodiments, one or more green, brown, or fully sintered cutting elements may be positioned on a green or brown cone structure prior to sintering the cone structure to a final density. Cutter assemblies may be formed by such methods, and such cutter assemblies may be used in earth-boring tools such as, for example, earth-boring rotary drill bits and hole openers.

The present document describes a drill-bit which achieves both the rigidity and a fast rate of penetration. The drill-bit comprises a cone shaped central portion comprising a plurality of ribs protruding from the central portion and defining a plurality of blades. The blades are curved along a direction of a longitudinal axis of the cone to facilitate insertion into a hole when rotating in a first direction, and exit from the hole when rotating in a second direction opposite the first direction. The drill-bit comprises a plurality of polycrystalline diamond cutters (PDC) on the blades provided in a first position for cutting the hard structure as the drilling-bit rotates in the first direction, and a plurality of up-drill PDC cutters provided in a second position for cleaning the hole as the drill-bit rotate in the second direction to exit the hole.

A millet film mulching hill planter comprises a machine frame, a rotary cultivation mechanism, a press wheel I, a film mulching device, a sowing case, an earthing wheel, a soil scraping plate and a press wheel II, wherein the sowing case is of an idler wheel type structure and comprises a rotary shaft, an outer wheel and an inner wheel, and a plurality of duckbill hole openers and seed discharging hole groups matched with the duckbill hole openers are distributed on the rolling peripheral surface of the inner wheel. Each duckbill hole opener is of a V-shaped structure between 0 degree and 180 degrees formed by an earth cutting pointed plate and a reset plate, wherein a reset spring in the compressed state is arranged between the reset plate and the inner wheel to enable the seed discharging hole group matched with the duckbill hole opener to be sealed by the earth cutting pointed plate, and the free end of the reset plate makes contact with soil and squeezes soil so as to open the seed discharging hole group during rotation of the outer wheel. Due to the fact that the inner wheel and the outer wheel of the sowing case roll coaxially, millet seeds are in the rolling state all the time in the sowing case, and in this way, seed discharging holes are prevented from being blocked by millet seeds, and millets seeds can fall down uniformly.

The invention belongs to the technical field of hole opening for plastic films, and especially relates to a single-side hole opener for a plastic film. The single-side hole opener for the plastic filmcomprises an execution element and a drive device. According to the hole opening device, cutting drilling is carried out through the sudden change of a suction gas pressure, and the surrounding of adrilling area is fixed through a low suction gas pressure, so that high drilling quality is achieved, and the phenomena of curling and the like are not easily caused. The hole opening device is divided into the drive device and the execution element, and different types of the execution elements can be changed according to the sizes of holes needing to be drilled in the plastic film; and parts connected with a drive device outer shell and a drive device inner shell in the drive device, of execution element inner shells and execution element outer shells in the various types of execution elements are the same in size, the size of a hole capable of being drilled by the execution element is decided by the size of one end away from the drive device, of each of the execution element inner shelland the execution element outer shell in the execution element, and the size of an annular blade, and the size of one end away from the drive device, of each of the execution element inner shells andthe execution element outer shells in the different types of execution elements, and the sizes of the annular blades are different separately.

The invention belongs to the technical field of well completion of petroleum and natural gas industries, and particularly relates to an electro-hydraulic downhole casing hole opener. The electro-hydraulic downhole casing hole opener is characterized by comprising a ground system, an electro-hydraulic power unit connected to the ground system through a cable and a hole opening unit connected to theelectro-hydraulic power unit; the electro-hydraulic power unit comprises a support frame, a fuel tank, a motor, a hydraulic pump, a relief valve connected to the hydraulic pump, an electromagnetic directional valve I and an electromagnetic directional valve II, wherein the electromagnetic directional valve I and the electromagnetic directional valve II are connected to the output end of the relief valve and arranged in parallel; and the hole opening unit comprises a unit body provided with four flow passages of the flow passage A, the flow passage B, the flow passage C and the flow passage D,a hydraulic motor, a piston bush connected with a motor output shaft through a spline, a drill bit in threaded connection with the piston bush and a pressing cap. The electro-hydraulic downhole casing hole opener transmits electric energy to the downhole from the ground through a cable, and the downhole hole opener is provided with the motor and a hydraulic power system, drives the drill bit to rotate and cut a casing, realizes hole opening of the casing, and provides conditions for implementing a next step of operation.

The invention provides a hole machining method of a reinforced resin matrix composite prepreg of fiber fabric, specifically comprising the steps of: after cutting the reinforced resin composite prepreg of fiber fabric, laminating and flattening the reinforced resin composite prepreg of fiber fabric; after packaging a plastic thin film, freezing wrapped prepreg blank at temperature between -14 DEG C to -24 DEG C; and drilling holes on the prepreg blank laminated by a thin plate drill or a hole opener. The invention improves the hole drilling manufacturability of the prepreg, reduces the roughness of hole wall, enhances the precision of machining size (to IT9) without deficiencies such as overlaps and burrs on the hole wall and the like, improves the production efficiency and lowers the rejection rate without special devices.

The invention relates to an installation method of a sensor free from pressure release, which is characterized in that a valve seat is welded at a pipeline, and one end embedded with a hole opener is screwed into the valve top tube in a revolving way; when the end reaches the valve, the valve is opened; a screw thread long rod provided with the hole opener is screwed into a position close to a pipeline wall; when an electric portable drill is turned on to drill through the pipeline wall and the hole opener is retreated to the outside of the valve, the valve is closed; the hole opener continues to be retreated until the hole opener is dismantled; a metal conduit embedded with a sensor probe is screwed into the valve top tube in a revolving way; when the metal conduit reaches the valve, the valve is opened; the probe provided with the sensor passes the valve, enters the pipeline and contacts with medium; a sealing screw cap on the metal conduit is screwed down in a revolving way and leans against the valve top tube to be fixed; 500-2000 thin screw threads are respectively arranged inside the valve top tube, outside the metal conduit and the screw thread long rod, and resistance of 500-2000 screw threads is generated on the medium which enters the pipeline by pressure after the valve is opened; as a result, the medium inside the pipeline is blocked without affecting installation of the sensor.

The invention discloses a heart hole opener which comprises a knife head, a knife rod and a knife rest, wherein the knife head is fixedly connected with the knife rod, and the knife rod can be used for accurately driving the knife head to move in the extension direction of the knife rest to finish the tissue cutting operation. Therefore, the problems of falling of the knife rod from the knife head and non-ideal shape of a tissue cutting surface easily caused by vibration during operation are effectively solved, the surgical cutting precision is improved, the operating process is simplified, and a relatively ideal expected effect is obtained.

The invention discloses a multifunctional hole opener. The multifunctional hole opener comprises a main shell, a roll shaft, a reinforcing hole, a drilling bit, a caliper and a measurement fixer, wherein the measurement fixer comprises an adjusting shaft, a measuring body shell and a control rod; the roll shaft is arranged at the top part of the main shell; the reinforcing hole is arranged at the lower end of the main shell; the drilling bit is arranged at the bottom part of the main shell; the caliper is connected with the main shell; the measuring body shell is arranged on the caliper; the adjusting shaft is arranged at the top part of the measuring body shell; and the control rod is arranged at the bottom part of the measuring body shell. The multifunctional hole opener disclosed by the invention has the advantages that not only can drilling bits of different sizes be installed and used, but also the length measurement and the hole opening can be carried out simultaneously, the accuracy of the hole opener is improved, and more convenience is brought for operation and use of people.

The invention provides a septic tank hole opener. The septic tank hole opener comprises a drill bit, cutting teeth are arranged on the head part of the drill bit, the tail end of the drill bit is connected with one end of a connecting rod through a sleeve connecting piece in a clamped mode, and a driving device is connected to the other end of the connecting rod. The sleeve connecting piece is provided with an inflatable rubber ring in a sleeved mode, the inflatable rubber ring is integrally or separately arranged with the sleeve connecting piece, and the inflatable rubber ring is connected with an inflation hose. According to the septic tank hole opener, the problems that the construction efficiency is low and the economic cost is high due to the fact that excavation is repeatedly performed in the key steps in the construction of the rural sewage existing in the prior art in the construction process of connecting a septic tank into a sewage pipe network are solved.

The invention discloses a handheld type hill-drop drill which comprises a machine frame, a material storage device, a seed discharge device and a seed discharge pipe. A handle transmission rod connected with a handle wheel is arranged in the portion, below the seed discharge device, of the machine frame. Handles are fixed to the portions, at the two ends of the handle transmission rod, of the machine frame through bearings. The handles are connected with the handle transmission rod. A conical hole opener composed of two semi-cones is hinged to the portion, below the handle transmission rod, of the machine frame. A blocking rod transversely penetrates through the portion, in the conical hole opener, of the machine frame. A conical slide block pin shaft supported by a guide groove in the machine frame and transversely penetrating into a conical slide block is arranged below the blocking rod. The conical slide block pin shaft is connected with the handle wheel through a steel wire. A hole opener pin shaft transversely penetrating through the machine frame is arranged below the conical slide block pin shaft. A pedal transverse rod transversely penetrating through the conical hole opener and the machine frame is arranged below the hole opener pin shaft. The pedal transverse rod is connected with a pedal chain wheel in the machine frame. The pedal chain wheel is connected with a chain wheel on the seed discharge device through a chain.