52results about "Drilling pipes" patented technology

A hammer drill/driver with a motor having an output member, a planetary transmission, a clutch assembly and a clutch bypass. The planetary transmission, which includes a ring gear, receives rotary power from the output member and produces a rotary output. The clutch assembly has a clutch profile, which is coupled to the ring gear, and a first pin assembly having a first follower, a first pin member and a first spring that biases the first follower into contact with the clutch profile. The clutch bypass has a bypass profile, which is coupled to the ring gear, and second pin assembly having a second follower, a second pin member, a third spring, which biases the second follower away from the bypass profile, and a fourth spring, which biases the second follower away from the second pin member. A method for operation of a hammer drill/driver is also provided.

The disclosure is drawn to methods of drilling wells utilizing blow out prevention components of differing pressure ratings. In the initial drilling phase, a lower pressure rated blow out prevention component is used. In a subsequent drilling phase where a reservoir of a natural resource is penetrated, a higher pressure rated blow out prevention component is used.

A helical displacement well with preassembled segments includes a preassembled shaft-forming penetrator tube including helical plates mounted to its exterior that may be rotated to propel the casing into the ground. A hydraulic drill motor rotates the penetrator tube and as it moves deeper into the ground. Extension tubes may be added to and coupled to the penetrator tube. A hydraulic drill motor is attached to the upper end of the extension tubes in order to continue the rotation of the assembled helical displacement well. The filter screen and the piping are installed concurrently with the addition of the extension tubes at the surface of the ground.

The invention discloses a planetary drill bit assembly for balancing the reactive torque of drilling equipment in well drilling and relates to the technical field of drill bits and drilling equipment for oil drilling. The planetary drill bit assembly comprises a planetary structure, a pressure compensating device, and inner and outer drill bits. One end of a drive shaft is connected with an internal drill bit assembly; the middle part of the drive shaft is sleeved with a drive shell; an external drill bit assembly is fixedly arranged outside the drive shell; and a planet bracket tray, a planet bracket and a plurality of planet gears are positioned between the drive shell and the drive shaft. In the invention, the external and internal drill bits are driven by the same drive mechanism to rotate simultaneously and the rotation speed of the external drill bit varies automatically with the change of the drilling speed, so the drill bit can adapt to and eliminate or balance the reactive torque generated by the different drilling speeds in real time. And thus, and the stability and directional control capability of the drill bit are further increased.

A coiled tubing injector system which includes transport trailer components for separate transfer to and from a drilling site. Each component is taken to the site with its own transport tractor, a first component including a coil storage reel and a second component including a tubing injector carried on a mast which is raised from a horizontal transport position, through a stabbing and unstabbing position to a raised working position. When the components are arranged together in an end-to-end with the mast in a stabbing position, a tube gripping member is positioned between the storage reel and tubing injector for controlling the handling of a free end of the stored tubing for stabbing and unstabbing of the tubing injector.

This invention relates to the field of treating subterranean formations to increase production. The method of the current invention is particularly useful in hydrocarbon wells that are long, for example, in excess of one kilometer. The method providing increasing production from a primary wellbore by intersecting this wellbore with a secondary wellbore near to the hydrocarbon production zone such that acid treatment or other treatment can be directed to the intersection.

The invention discloses a coal seam anti-reflection method for circular damage by using cold shock of liquid nitrogen and phase change gas. First, a layer penetrating drill hole is drilled in a roadway to a coal seam through a rock layer; in the layer penetrating drill hole, the coal seam is cut to form multiple cracks perpendicular to the layer penetrating drill hole; a liquid nitrogen injectingpipe and an exhaust pipe extend into the layer penetrating drill hole; and the exhaust pipe is connected with two gas pipelines separately provided with a safety valve and a spherical valve. The spherical valve performs the on-off control over the emission of nitrogen when the liquid nitrogen is injected in the layer penetrating drill hole; after the spherical valve is closed, a threshold of the safety valve is set, so that the safety valve controls the pressure in the layer penetrating drill hole; and after the air pressure in the layer penetrating drill hole exceeds the threshold each time,the safety valve is opened to discharge internal nitrogen for pressure relief, and the safety valve is automatically closed after the pressure relief. The method can guarantee that the liquid nitrogenis quickly and continuously injected in the layer penetrating drill hole, and meanwhile, cracks of coal masses are caused by using cold shock of the liquid nitrogen, the expansion pressure of the phase change gas and the frost heaving pressure of water in the cracks to effectively guarantee the anti-reflection effect.

A drilling machine comprises a power motor unit coupled with a spiral rod and a drill bit shaft and assembled in a mounting frame using a positioning disc. The arbor of power motor mounted on the mounting frame directly drives the drill bit shaft. The spiral rod is disposed at the periphery of drill bit shaft. A plurality of cutters are arranged between the drill bit and spiral rod at the outer perimeter of drill bit with a hollow guide notch above the cutters. The spiral rod is mounted in the positioning disc and engage a plurality of planet gears. When the arbor of power motor turns, it directly drives the drill bit shaft, drives the fast turning of drive gear at the periphery of drill bit shaft, resulting in different turning speeds with the drill bit shaft turning slowly and the spiral rod turning fast.

A system for controlling solids within a wellbore of a well includes a pump positioned within a substantially horizontal portion of the wellbore. A first tubing string is operatively connected between the pump and a surface of the well for removing liquid from the wellbore that is pumped by the pump. A second tubing string may also be operatively connected to the pump and extends downhole of the pump. Either or both of the first and second tubing string includes a longitudinal axis that is offset from an axis of rotation about which the second tubing string is capable of being rotated.

The invention discloses a device for quickly drilling in frozen earth and a construction method of the device. The device and the method aim to increase drilling speed. The device for quickly drilling in the frozen earth comprises a drill pipe and a drill bit. A through nitrogen conveying hole is formed in the drill pipe and the drill bit, the drill bit is provided with a liquid nitrogen outlet, the rear end of the drill pipe is connected with a liquid supply pipe, and the liquid supply pipe is connected with a liquid nitrogen storage tank. The invention further discloses the construction method for quick drilling in the frozen earth. The method includes the following steps that the drill pipe extends into a drilled hole frozen in advance; liquid nitrogen in the liquid nitrogen storage tank is input into the drill bit fixed at the bottom of the drill pipe through the liquid supply pipe, and the drill bit is precooled; after precooling, a drilling machine is started, the drilling machine drives the drill pipe to rotate and impact, and the drill pipe drives the drill bit fixed at the bottom of the drill pipe to rotate to drill; in the drilling process, the liquid nitrogen in the liquid nitrogen storage tank flows out from the liquid nitrogen outlet of the drill bit after passing the liquid supply pipe, the nitrogen conveying hole in the drill pipe and an internal channel of the drill bit. The device and the method are suitable for drilling through the drill bit in frozen holes.

The invention discloses a drilling tool of a rotary drilling rig. The drilling tool comprises a top plate (1) and a connecting block (2) connected with the top plate (1); the top plate (1) is connected with a first cylinder (3), a boring mud inlet (31) is formed in the first cylinder (3), and an openable bottom plate (4) is connected onto a bottom wall of the first cylinder (3); the top plate (1) is further connected with a second cylinder (5) sleeved outside the periphery of the first cylinder (1), the diameter of the second cylinder (5) is more than that of the first cylinder (3), and the bottom of the second cylinder (5) is provided with first drilling teeth (51); and the axial length of the first cylinder (3) is more than that of the second cylinder (5). For the structural design of the drilling tool, on the premise of the ensuring the drilling efficiency, the drilling tool integrates the functions of loop drilling and boring mud salvaging into a whole, so that the construction efficiency can be obviously increased finally. In addition, the invention further discloses a rotary drilling rig comprising the drilling tool.

A method of avoiding the need for a scraper run in drill out operations. The method involves the single step of incorporating a rotary scraper into the downhole drilling motor assembly in such a manner that the rotary scraper rotates with the drill bit and follows the drill bit to scrape debris from interior casing walls.

The spring type Y-shaped well joint includes an oil producing and well testing channel, a well testing channel and an oil pumping electric pump channel forming a Y-shaped structure. In the joint between the oil pumping electric pump channel and the well testing channel, there is one sealing device, which seals the well testing channel while opening the oil pumping electric pump channel when the oil well is in its production state, and seals the oil pumping electric pump channel while opening the well testing channel when the oil well is in its production stopping state. The present invention is superior to available technology, and has simplified operation process.

A combination blowout preventer and recovery device, comprising a lower part that is placed over a well pipe, and an upper part having a channel and plates to close it. The large end of the valve is placed over a well pipe through which fluid is flowing out. The small end of the valve is connected to the channel. A sleeve connected to the return pipe is placed over the well pipe. Positioning rings are attached to a high pressure pipe, that can fit inside the well pipe. Grinders remove matter from the well pipe. Pistons are attached to each of the plates. The pistons propel the plates across the channel to seal it off and stop the leak. Flanges may limit the pistons' movement. Gears can engage teeth on the pistons to withdraw the plates from the channel, to reopen it and allow the flow of fluid to resume.

The invention provides a separated layer water injection string for petroleum exploitation and a water injection process thereof. The separated layer water injection string for petroleum exploitationcomprises a casing pipe and an oil pipe. A plurality of packers are arranged in the casing pipe in a packer sealing mode from top to bottom in sequence. The top of the oil pipe is connected with a tubing hanger. The bottom of the oil pipe penetrates through all the packers in sequence and is connected with a circular plug. An insertion seal is arranged between the oil pipe and each packer. A hydraulic safety joint is arranged in the position, above each packer, of the oil pipe. A water distributor is arranged in the position, below each packer, of the oil pipe. A circulating sliding sleeve isarranged between the hydraulic safety joint at the upper end of the oil pipe and the tubing hanger. Through the separated layer water injection string for petroleum exploitation, separated layer waterinjection can be realized; after the string gets blocked, casing milling and salvaging measures can be taken; and the problem that the separated layer effective period is shortened due to shaking ofan existing water injection string is solved.

The invention discloses a controlled ultra-short radius guiding well drilling system and method, and relates to the technical field of well drilling, the system comprises a drilling machine, a conventional drill rod, a flexible drill rod structure, a data relay transmission short section structure, a flexible motor structure, a measurement-while-drilling short section structure and a drill bit which are connected in sequence; the measurement-while-drilling short section structure is used for measuring well deviation and azimuth information; the data relay transmission short section structure is used for receiving well deviation and azimuth information measured by the measurement-while-drilling short section structure and sending the well deviation and azimuth information to a drilling machine; the flexible drill rod structure comprises at least one flexible drill rod short section, and the flexible motor structure comprises at least one flexible motor. The well drilling method can be used for directional well drilling and composite well drilling. According to the method, the purposes of well track control and drilling speed increasing and efficiency increasing of the ultra-short radius directional well are achieved.

The invention discloses a double-output-shaft non-excavation directional drilling machine power device and a drill rod matched with the device, and relates to the field of drilling machines. Accordingto the technical scheme, the power device comprises a shell, a first driving device arranged in the shell, a second driving device arranged in the shell, a first output shaft driven by the first driving device to rotate and a second output shaft driven by the second driving device to rotate. The second output shaft is arranged in the first output shaft, axes of the first output shaft and the second output shaft coincide, the first output shaft and the second output shaft can relatively rotate, the drill rod comprises an outer rod and a connecting rod, the connecting rod penetrates through theouter rod, and can rotate in the outer rod, the end, away from the power device, of the outer rod is provided with an inclined part, an included angle is formed between the inclined part and the outer rod, the end, close to the inclined part, of the connecting rod extends out of the inclined part, and a tooth wheel drill bit is fixedly arranged. The device has the effect that a hard soil layer orsoil layer with much stone can be conveniently drilled.

The invention discloses a drilling and perforating device for building construction piling. The drilling and perforating device comprises a machine body and a first cavity formed in the top of the machine body, wherein second cavities are symmetrically formed in the left end and the right end of the first cavity; a third cavity is formed below the first cavity; two fourth cavities are formed in the positions, below the second cavities, of the machine body in a left-right symmetry manner; cooling liquid is stored in the fourth cavities; two piston cylinders are fixedly arranged at the positions, at the bottom ends of the two fourth cavities, in the machine body; and two fifth cavities are formed in the two piston cylinders correspondingly. According to the drilling and perforating device for building construction piling, the device structure is simple, operation is convenient, the ground can be perforated during building construction, piling is convenient, all procedures are matched with one another and do not influence one another, the requirement for the device height is low, perforating shafts can be stacked end to end, the process is convenient and fast, energy waste is effectively avoided, and therefore cost is reduced, and convenience is provided for people.

A lifting frame having an upper yoke member and a pair of substantially parallel vertical members to forms the sides of the lifting frame. A lifting sub extends from the upper yoke member for connecting the lifting frame to a traveling block or top drive assembly, while a lower horizontal base member permits attachment to bails or other lower linkage members. The vertical members have at least partially aligned sections of reduced thickness, allowing the internal width dimension (between the inner surfaces of the substantially vertical members) to be increased without simultaneously increasing the overall external width of the lifting frame.

The invention provides an underground drainage gas production device and a pipe column. The underground drainage gas production device comprises an upper joint, a central cylinder arranged at the lower end of the upper joint in a communication mode, a first clamping and hanging part sleeving the outer side of the central cylinder, a setting assembly sleeving the outer side of the central cylinderand located at the lower end of the first clamping and hanging part, and a first flow channel capable of being in communication with an inner cavity of the central cylinder, wherein the first flow channel is of a spiral structure. The underground drainage gas production device is of a rear-mounted structure, second clamping and hanging parts capable of being matched with the underground drainage gas production device can be firstly put into a shaft, and when throttling is needed, the underground drainage gas production device is put into the shaft, and the second clamping and hanging parts areof a cylinder shape, so that the drift diameter in the pipe column and the later operation are not influenced.