407 results about "Pumpjack" patented technology

The utility model relates to the technical field of oil well pumps, in particular to a supporting tool for a pump cylinder of an oil well pump, which comprises a pair of symmetrically arranged supporting components. The supporting assembly comprises a base, the upper end face of the base is vertically connected with a vertical plate, the vertical plate is in threaded connection with a horizontally-arranged lead screw, one end of the lead screw is connected with a hand wheel, the other end of the lead screw is rotationally connected with a supporting block, and the two sides of the supporting block are symmetrically provided with obliquely-arranged supporting faces. A pair of L-shaped supports are symmetrically arranged on the two sides of the supporting block, the transverse ends of the L-shaped supports are provided with inclined faces in sliding fit with the supporting face of the supporting block, the longitudinal ends of the L-shaped supports are sleeved with sliding sleeves in a sliding mode, and the sliding sleeves are fixedly connected with the vertical plate. The pump cylinder supporting device is simple in structure, low in manufacturing cost, capable of supporting and fixing pump cylinders of different sizes and more flexible and convenient to use, the outer wall of the supported pump cylinder is not shielded, and polishing and coating operation is not affected.

The invention relates to the technical field of oil field separate-layer oil production, and particularly discloses an oil well pressure pulse control separate-layer oil production tubular column, an intelligent separate-layer oil production device is arranged in the tubular column, the intelligent separate-layer oil production device comprises two oil inlet channels capable of regulating and controlling the liquid inlet flow, and an inlet of one oil inlet channel is formed in the side wall of the tubular column; the intelligent separate recovery device is connected with the pulse receiver through a signal line, the output end of the intelligent separate recovery device is connected with an oil well pump, the oil well pump is connected with a sucker rod and pumps oil out through the sucker rod, a packer is connected to the outside of the tubular column and arranged below the intelligent separate recovery device, a screen pipe is connected to the tubular column below the packer, and the screen pipe is connected with the output end of the intelligent separate recovery device. And the screen pipe is communicated with an inlet of the other oil inlet channel. According to the tubular column, specific pressure pulse codes can be generated in a shaft sleeve through the pressure pulse generator, after the pulse receiver detects and analyzes the codes, the intelligent separate recovery device is controlled to automatically adjust different opening degrees of oil nozzles of corresponding production layers according to different pulse instructions, and oil layer separate recovery is achieved without moving the tubular column.

The invention provides an oil well oil pumping speed curve optimization method, system and equipment and a storage medium, and belongs to the technical field of petroleum industry, a plunger motion curve is expressed as a trapezoidal motion curve by establishing a relational expression of pump efficiency and plunger motion speed, a plunger motion equation is expressed in a Fourier series expansion form, and the pump efficiency and the plunger motion speed are optimized. And determining constraint conditions according to oil well swabbing parameters to obtain an optimized plunger motion equation. According to the optimized oil pumping speed curve, the plunger can move at a constant speed for a long time in the up-down stroke, the good inlet and outlet instantaneous displacement can be maintained in the swabbing process, the oil well pump efficiency is improved, meanwhile, the unstable factor of sudden acceleration change of a trapezoidal motion curve is overcome, impact is effectively reduced, and motor operation is more stable.

The invention discloses an immovable string steam injection oil and gas production hydraulic lifting process, and relates to the technical field of mechanical oil and gas production equipment. According to the immovable tubular column steam injection oil and gas production hydraulic lifting technology, the working process of the immovable tubular column steam injection oil and gas production hydraulic lifting technology comprises the following steps that S1, in the ground working stage, ground equipment is composed and acts; and S2, the underground working stage is divided into an oil pumping process and a steam injection process, and the oil pumping process can also be divided into an upstroke stage and a downstroke stage. The frequency converter is adopted to adjust the frequency, a double-channel structure is adopted, resetting of the hydraulic lifting device is completed, the reciprocating mode achieves pumping of crude oil, due to the fact that a sucker rod is not arranged, the sucker rod is not stretched and shortened, and meanwhile when a pipe column is stretched and shortened, the feedback oil well pump is stretched and shortened as well, the effective stroke of the feedback oil well pump is prolonged, and the oil pumping efficiency is improved. The effective discharge capacity of the pump is improved, the tripping-in depth of the oil well pump can be effectively increased, and then the production potential of an oil well can be fully exerted.

and a tube connecting the dischar e side of the pump with a check valve in it, and a check valve in it at the pump end. The pump ends up being used to close the valve body's outer cover so that the pump can be closed after the oil drain plug is filled in. When the pump is filled with oil, the pump ends up being used to close the valve body.

The invention relates to the technical field of bearing pedestals, in particular to wind generating set bearing pedestal supporting equipment which comprises a shell, a main shaft is connected to the inner side of the shell in a sleeved mode, and the wind generating set bearing pedestal supporting equipment is characterized in that a material storage box is arranged on the upper surface of the shell, a material injection opening is connected to the top of the material storage box in a penetrating mode, and an oil conveying pump is connected to the bottom of the material storage box in a penetrating mode; the bottom of the oil delivery pump is connected with an oil delivery pipeline in a penetrating mode, the lower surface of the shell is connected with an oil well pump in a penetrating mode, the bottom of the oil well pump is connected with a storage cavity in a penetrating mode, the bottom of the storage cavity is symmetrically connected with ball valves in a penetrating mode, and the upper surface of the bottom of the shell is fixedly connected with a storage cavity. Old grease can be discharged through pressure, the residual old grease in the shell is completely removed, the situation that the lubricating performance is reduced due to the fact that the new grease and the old grease are mixed is avoided, the new grease can more evenly cover the surface of the bearing, an effective lubricating film is formed, and friction and abrasion are reduced.

The invention relates to the technical field of oil exploitation, in particular to a hydraulic control well flushing valve and a double-pump-barrel oil well pump capable of flushing wells, the hydraulic control well flushing valve comprises an outer barrel body and a piston rod arranged in the outer barrel body, and a switch assembly connected with one end of the piston rod is arranged in a connector at one end of the outer barrel body; the other end of the outer cylinder is provided with a hydraulic driving assembly enabling the switch assembly to act. The connector is provided with an overflow control component which enables well flushing fluid to enter the outer cylinder so as to drive the hydraulic driving assembly to act. The double-pump-barrel oil well pump capable of washing the well comprises a hydraulic control well washing valve and an oil well pump body, one end of the oil well pump body is connected with an oil pipe, and the other end of the oil well pump body is connected with the hydraulic control well washing valve through a tail pipe. The well washing valve has the beneficial effects that the well washing valve is matched with the double-pump-barrel oil well pump for use, forward washing circulation can be established under the condition that operation is not carried out, wax is softened and driven out of an oil pipe, operation is easy and convenient, normal work of a sucker rod cannot be affected, and the yield of an oil well is guaranteed.

The invention relates to the technical field of hydraulic lifters, and discloses an intelligent control hydraulic lifting oil extraction device which comprises an outer oil pipe and a small oil pipe penetrating through the middle of the outer oil pipe. A hydraulic cylinder barrel plunger, an oil well pump plunger, an oil well pump barrel, a traveling valve, a fixed valve and a filter screen pipe are sequentially arranged below the hydraulic cylinder barrel from top to bottom; the centralizer assembly is arranged between the outer oil pipe and the hydraulic cylinder barrel, the centralizer assembly comprises a supporting pipe fitting fixed between the outer oil pipe and the hydraulic cylinder barrel, a positioner is arranged at the connecting end of the supporting pipe fitting and the hydraulic cylinder barrel, and a telescopic rod piece is movably installed in the supporting pipe fitting. The hydraulic cylinder barrel can be centered and stably positioned through stress energy release of the hydraulic cylinder barrel in the power liquid input and oil extraction process, working deviation and use eccentric wear of the hydraulic cylinder barrel caused by external force potential energy are avoided, and the overall service life of the oil extraction device is prolonged.

The invention discloses an SXW self-adaptive intelligent negative pressure vibration plug removal and oil increase device, and relates to the technical field of plug removal and oil increase. The oil well pump comprises an oil well pump body, an oil well pump plunger is arranged on the inner wall of the oil well pump body, a screen pipe is in threaded connection with the bottom of the oil well pump body, a plurality of screen holes are formed in the outer wall of the screen pipe, a mechanical plug removal oil extraction device is arranged at the bottom of the screen pipe, and a soft metal wire plug is in threaded connection with the bottom of the mechanical plug removal oil extraction device. Through the arrangement of the anti-breaking and anti-falling device, an elastic telescopic plate, a stabilizing plate block, an abutting plate I, an electric push rod, a fixing block, a fixing ring and a U-shaped abutting plate are arranged, the abutting plate I moves to drive the stabilizing plate block to abut against the inner wall of an oil well, and meanwhile the stabilizing plate block moves to stretch the elastic telescopic plate; the stabilizing plate blocks abut against the inner wall of the oil well to reinforce fixation of the screen pipe, and therefore the problem that connection is broken and disengaged under the condition that the screen pipe and the oil well pump are frequently subjected to plug removal operation is solved.

The utility model discloses a grease scraping device of a centralized lubricating device. The grease scraping device comprises an oil storage tank and a mounting seat, a mounting seat is mounted on one side of the oil storage tank, an oil well pump is mounted at the top end of the mounting seat, an oil scraping structure is arranged in the oil storage tank, a filter box is arranged at the top end of the oil storage tank, an oil return pipe is mounted at the top end of the filter box, and a filter structure is arranged in the filter box; the oil scraping structure comprises a motor, a connecting shaft, a scraping plate and a connecting rod, the motor is arranged at the bottom end of the oil storage tank, the connecting shaft is installed in the oil storage tank, the connecting rod is arranged on the outer side of the connecting shaft, and the scraping plate is arranged on one side of the connecting rod. The scraper blade can be driven to rotate through the motor and the connecting shaft, so that the inner wall of the oil storage tank is scraped, lubricating oil is prevented from being solidified on the inner wall of the oil storage tank, the lubricating oil can be stirred through the connecting rod, and the lubricating oil cannot be solidified in the oil storage tank; and the oil outlet is smoother.

The invention discloses a lubricating oil system of an aviation turboprop engine. The lubricating oil system comprises a lubricating oil supercharging device, an oil-gas separation device, a lubricating oil return device, a lubricating oil filtering device, a lubricating oil monitoring device and a connecting guide pipe communicating all the devices. The lubricating oil supercharging device comprises a main lubricating oil pump, an auxiliary lubricating oil pump and a torque measuring pump; the oil-gas separation device comprises a ventilation oil tank, an air separator and an oil mist separator; the lubricating oil return device comprises a lubricating oil tank, a lubricating oil radiator, a middle and rear bearing oil well pump, a transmission box oil well pump and a direct-current electric lubricating oil pump; the lubricating oil filtering device comprises a lubricating oil filter and a middle-rear bearing oil return filter; the lubricating oil monitoring device comprises a temperature metal chip annunciator and a magnetic chip detection annunciator. Appropriate lubricating oil pressure and oil quantity are provided, lubrication and heat dissipation of friction surfaces of parts in an engine are improved, and the use reliability of the engine is improved.

The invention relates to an automatic flushing screen pipe, and belongs to the technical field of oil well oil pumping equipment. The device comprises an upper connector which is in threaded connection with an oil well pump, the upper portion of a center pipe is sleeved with a supporting base, and a supporting block and a third spring are installed in a groove of the supporting base; the lower portion of the center pipe is sleeved with the screen pipe, and a liquid inlet valve hole and a liquid outlet valve hole are formed in the middle of the center pipe and provided with a liquid inlet check valve set and a liquid outlet check valve set respectively. And the lower end of the flushing pipe penetrates through the locking ring to be fixed. And a piston chamber is formed among the central pipe, the supporting seat, the outer protective pipe and the valve ring. The piston chambers are alternately expanded and compressed by utilizing the relative movement of the central pipe and the supporting seat during the up-down stroke of the oil well pump, gas and liquid are driven to wash the screen pipe through the washing holes, and meanwhile the screen pipe is driven to rotate. The screen pipe can be effectively prevented from being blocked, the service life of the screen pipe is prolonged, and the oil well yield is improved.

The invention relates to the technical field of oil field layered mining, in particular to a same-well layered injection-production pipe column. The same-well layered injection and production pipe column comprises a driving pipe column and a working pipe column, an oil well pump is arranged at the bottom end of the driving pipe column, an injection and production sealing connector is arranged below the oil well pump, and the flowing direction of underground fluid is changed through the injection and production sealing connector; the working pipe column is divided into a plurality of working sections through packers, and a water distributor or a bottom-hole regulator which works in a one-way mode is arranged in each working section. The top end of the working pipe column is provided with an insertion pipe detachably connected with the injection-production sealing connector. According to the same-well layered injection and production pipe column, the injection and production sealing connector is arranged to be matched with connection and separation between the insertion pipe and the injection and production sealing connector to achieve switching of a water injection channel and an oil production channel, and the same-well layered injection and production work can be continuously conducted under the condition that the pipe column is pulled out of a well opening through cooperation with the water distributor and the bottom-hole regulator which work in a one-way mode; the tubular column is simple in structure, low in operation difficulty and long in working time.

The hydraulic pumping unit convenient to adjust comprises a support, an oil pumping assembly is arranged at the top of the support and comprises an oil well pump, a traction rope and a wobble wheel, the wobble wheel is located in a wobble groove and connected with a support bearing, the traction rope is wound on one side of the wobble wheel, and the wobble wheel is connected with the support bearing. The oil well pump is connected to one end of the traction rope, the assembly used for swing winding comprises a first telescopic rod installed on one side of the support, a balance weight disc and a first motor, the first motor is in transmission connection with the balance weight disc, and the assembly used for angle adjustment comprises an adjusting disc, a supporting base, a second motor and an assembly used for limiting and fixing. The device comprises a gear, a rack and a second telescopic rod. The length of the traction rope is adjusted through the first motor and the balance weight disc, so that the height of the oil well pump is adjusted, the gear is limited and fixed through the rack, the wobble wheel is fixed, and the oil pumping effect can be prevented from being affected.

An oil drainage device under a pump is characterized in that an outer suspension joint and an inner suspension joint are connected into a whole in a hanging mode and can rotate relatively, an outer thread of a spiral joint is screwed with an inner thread of the lower portion of a lower joint of the pump, and after the inner suspension joint is arranged on the spiral joint in a sleeving mode, the upper portion of the outer suspension joint is connected with the lower portion of the lower joint; an anti-rotation groove is formed in the lower portion of the spiral connector, the anchoring device is sleeved on the inner suspension connector, the anti-rotation pin transversely penetrates through the anchoring device and the inner suspension connector, the inner end of the anti-rotation pin is inserted into the anti-rotation groove, the spiral connector and the anchoring device cannot rotate relatively and can move relatively in the axial direction through the anti-rotation pin, and an ejector rod is arranged on the upper portion of the spiral connector. The upper portion of the pump lower connector is connected with the lower portion of an oil inlet valve of the oil well pump, the ejector rod is located below a valve ball of the oil inlet valve of the oil well pump and installed below the oil well pump, no sealing part exists on the ejector rod, the leakage problem does not exist, the well descending reliability of the oil drainage device and the reliability of the oil drainage device can be improved, and long-term normal production of an oil well is guaranteed.

The application discloses a kind of oil testing well continuous pumping equipment, it is related to the technical field of oil and gas equipment, the application is aimed at solving the problem of affecting efficiency caused by the need to disassemble equipment due to adjusting the parameters of pump, the application includes: hydraulic motor and path constraint, hydraulic motor and path constraint are relatively fixed;The output shaft of hydraulic motor is connected with turntable, and the turntable is provided with a chute, which is arranged along the radial direction of the turntable;The path constraint is provided with a slide, which includes two parallel straight segments, two first arc segments at both ends of the straight segments, and a second arc segment on the opposite sides of the two first arc segments;A switching plate is arranged in the slide;When the switching plate is in the first position, the straight segments and the first arc segments are in communication and form a ring;When the switching plate is in the second position, the straight segments and the second arc segments are in communication, forming a longer ring;A support rod is arranged in the slide and the chute, and the support rod is connected with a connecting rod, which is used to connect the pump rod of the oil pump.

The utility model discloses an oil pump cleaning device which comprises a shell, a clamping mechanism, a first cleaning mechanism and a second cleaning mechanism, the clamping mechanism comprises a rotating motor, the output end of the rotating motor is connected with a rotating shaft penetrating through the bottom wall of the shell, a clamping assembly is arranged at the end of the rotating shaft, and the first cleaning mechanism comprises an oil cylinder. An annular partition plate is arranged in the oil barrel, a barrel-shaped filter screen is arranged at the inner ring of the annular partition plate, an oil discharge straight pipe and an oil inlet straight pipe are arranged on the side wall of the oil barrel, one end of the oil discharge straight pipe is connected with a first oil guide hose located in the barrel-shaped filter screen, an oil well pump is arranged on the outer wall of the shell, and the other end of the oil discharge straight pipe is communicated with the oil well pump through a second oil guide hose. An oil outlet of the oil well pump is connected with a third oil guide hose, a fourth oil guide hose is arranged at one end of the oil inlet straight pipe, the second cleaning mechanism comprises a spraying block right opposite to the clamping assembly, and a liquid storage tank and a liquid pump are arranged outside the shell; the oil pump shell and the inner cavity can be cleaned, and the functions are more complete.

The utility model discloses an impact type oil return prevention device which is applied between a standing valve and a pump cylinder of an oil well pump and comprises a valve body, the top of the valve body is connected to the bottom of the pump cylinder of the oil well pump, the bottom of the valve body is connected to the top of the standing valve of the oil well pump, a blocking cavity is formed in the top of the valve body, and an oil inlet cavity is formed in the bottom of the valve body. The bottom of the blocking cavity is connected with the top of the oil inlet cavity in a penetrating mode, a blocking mechanism is arranged between the blocking cavity and the oil inlet cavity, and the blocking mechanism is used for conducting control over the valve body by sliding and penetrating between the blocking cavity and the oil inlet cavity. The valve body is arranged between the standing valve and the pump cylinder of the oil well pump to control blocking of the oil inlet channel, the blocking mechanism slides and penetrates through the blocking cavity and the oil inlet cavity of the valve body to control opening and closing of the oil inlet channel, and the oil inlet channel can be prevented from being blocked in the well descending construction process of an oil well string under the matched arrangement of the structure. Hard wax, thick oil, dead oil and machine impurities enter the tubing string.

The invention discloses a hanging rope connector and a pump collision operation method, and belongs to the technical field of petroleum pumping units, the hanging rope connector is used for connecting a polish rod and a hanging mechanism, the hanging rope connector comprises a hanger used for being connected with the hanging mechanism, and the hanger is provided with an interval space; the polish rod fixing assembly is used for fixing the polish rod and the hanger, and the polish rod fixing assembly is detachably connected with the hanger; under the condition that the polished rod fixing assembly is supported on the hanger, the polished rod and the hanger are relatively fixed; and under the condition that the polish rod fixing assembly is separated from the hanger, at least part of the polish rod fixing assembly can move relative to the hanger in the interval space. The pump collision operation method comprises the following steps: detaching the locking piece to separate the movable positioning block from the balance main body; the balance body is rotated, and the anti-falling polish rod clamp falls to the hanging part. According to the polish rod clamp, the existing polish rod clamp does not need to be disassembled and assembled repeatedly for unloading, the disassembly operation of the original polish rod clamp is omitted, huge impact on an oil well pump when the polish rod clamp is disassembled is avoided, and the service life is prolonged.

The invention relates to the technical field of oil field oil production engineering, in particular to an oil well intelligent balanced production pipe column and a construction method. Comprising a guide screwed plug, an oil pipe, a balanced production tool, a layered packer, an oil well pump, a cable and a ground control system. The guiding plug is located at the lowest end of the tubular column string, the balanced production tools and the layered packer are connected in series through the oil pipe, the layered packer is used for separating oil layers, and the cable is connected with the balanced production tools, can penetrate through the layered packer and is finally connected to the ground control system. According to the bottom-hole regulator disclosed by the invention, the bottom-hole regulator is quickly regulated by adopting a design mode of an underground electric control liquid path channel, hydraulic direct pushing and multiple tracks; the mode that a motor controls liquid path pressurization and underground liquid path rapid pressure relief is adopted, and rapid response of the bottom-hole regulator is achieved; a variable-density liquid inlet hole adjusting mode is adopted, and linear adjustment under multiple underground rails is achieved; a multi-stage inner vulcanization sealing mechanism is arranged underground, and the problem that a sealing piece is prone to damage under high pressure is solved.

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

The utility model provides oil pumping equipment. The oil pumping equipment comprises a base, a movable seat, an execution assembly and a synchronization assembly, the execution assembly comprises a roller, a flexible connecting piece and a driving piece, and the driving piece is used for driving the roller to rotate; one end of the flexible connecting piece is wound on the roller, and the other end of the flexible connecting piece hangs down and is used for extending into a pumping wellhead to be connected with a plunger of an oil well pump; the execution assembly is arranged on the moving seat; the movable seat is movably arranged on the base in the axial direction of the roller; the synchronous assembly comprises a thread transmission pair and a middle transmission mechanism; the transverse movement mechanism is simple and ingenious in structure, the roller and the driving piece of the roller can integrally move transversely along with rotation of the roller, and the transverse movement mechanism is more flexible in structure adjustment, convenient to popularize and wide in adaptation.

According to the powder cutting compressor, a closed die cavity is rapidly formed through linkage of multiple oil cylinders, the extrusion efficiency is improved, multiple times of feeding can be achieved through primary initial pressing, metal compression blocks obtained through final compression and material pushing are larger in density, the space of finished products is further compressed, the compression efficiency is improved, and the production cost is reduced. And meanwhile, the content of residual engine oil or cutting fluid in the metal compression block can be reduced. When the high-power oil cylinder is used for compressing waste materials, oil or cutting fluid is extruded out, the oil or the cutting fluid is discharged through a gap between the second movable bin door and the side wall of the material pressing bin body, namely the oil collecting port, an oil collecting tank is designed below the second movable bin door, an oil well pump can be arranged, and the oil well pump is connected with the oil collecting tank through a pipeline to pump out the oil. Therefore, the powder cutting compressor solves the environment-friendly problems that waste materials of an existing processing plant occupy large storage space, waste of cutting fluid is large, the cutting fluid cannot be recycled, oil or the cutting fluid in the waste materials is prone to dripping on the ground, and consequently the waste materials are dirty, disordered and poor.

The utility model provides industrial oily sewage treatment equipment which comprises a box body, a water inlet is fixedly formed in the upper surface of the box body, a transverse plate is fixedly installed in the box body, a water outlet valve is fixedly installed in the middle of the transverse plate, an oil pumping mechanism and a filtering mechanism are arranged in the box body, and a drainage hopper is fixedly installed at the bottom of the box body. Supporting legs are fixedly mounted at the bottom of the box body; the oil pumping mechanism comprises a fixing plate, three floating balls are fixedly installed on the upper surface of the fixing plate, and an oil suction opening is fixedly formed in the upper surface of the fixing plate. By using the oil pumping mechanism, the floating ball floats along with an oil layer, it is ensured that the oil suction port is located above an oil-water interface all the time, when the oil well pump works, oil is pumped out through the oil pumping pipe and discharged through the oil discharging pipe, the problem of oil-water mixed discharging is effectively solved through the design, meanwhile, the oil suction precision is improved, air cylinder driving is not needed, and shaking interference is reduced.

The invention relates to a segmented sealing whole-barrel type oil well pump, and belongs to the technical field of oil field mechanical oil extraction equipment. The top of the outer pump cylinder is in threaded sealing connection with an upper joint, the lower part of the outer pump cylinder is connected with a connecting cylinder, the connecting cylinder is in threaded connection with a fixed valve group, and the lower part of the fixed valve group is connected with a lower joint; the bottom diameter of the inner pipe of the outer pump cylinder is smaller than the top diameter, a boss ring is arranged on the middle end ring, and the groove ring of the bottom sealing sleeve is embedded into the boss ring. The inner rings of the sealing sleeves are in clearance fit with the plunger to achieve sealed oil pumping after being bored and ground, the convex ring of the topmost sealing sleeve is embedded into the groove of the pressing sleeve, the pressing sleeve is in threaded connection with the upper connector, and the sealing sleeves can be tightly locked by rotating the pressing sleeve. The structure adapts to the pump cylinder bending working condition, eccentric wear is avoided, the sealing performance is guaranteed, and oil pumping is stable and efficient.

The utility model discloses a pressurized jet mixed flushing device under an oil well pump and an oil well pump, and relates to the technical field of oil well pumps, the pressurized jet mixed flushing device comprises an outer shell and further comprises an inner shell, and the inner shell is arranged in the outer shell in a sleeved mode; a protruding ring is arranged on the inner wall of the outer shell, an annular groove is formed in the end face, facing the interior of the outer shell, of the protruding ring, and a water nozzle communicated with the annular groove is arranged on the inner wall of the protruding ring. The inner shell is inserted into the annular groove, and a supporting reset device is arranged between the groove bottom of the annular groove and the inner shell. When the piston moves downwards, the piston collides with the inner shell to enable the inner shell to move downwards to compress the annular groove, compressed liquid in the annular groove releases pressure through the water nozzle, attachments above the fixed valve are fully flushed down to form a mixture, and the mixture is discharged into a tubular column in the ascending process of the piston.

The utility model is suitable for the technical field of ground driving screw oil-well pumps, and provides a large-displacement high-lift screw pump which comprises a screw pump stator, a transition oil pipe and a tail pipe are arranged at the two ends of the screw pump stator respectively, a screw pump rotor is arranged in the screw pump stator in a penetrating mode, and the transition oil pipe is connected with the tail pipe. The two ends of the screw pump rotor extend into the transition oil pipe and the tail pipe correspondingly, and a plurality of S-shaped closed cavities are formed between the screw pump stator and the screw pump rotor. Preferably, the end portion of the tail pipe is sleeved with a limiting stopper reducer union, a limiting stopper baffle is arranged between the limiting stopper reducer union and the end portion of the tail pipe, the limiting stopper baffle is welded to the limiting stopper reducer union, and the tail pipe is in threaded connection with the limiting stopper reducer union. The scheme has the advantages of large discharge capacity and high lift, the liquid production capacity of a single well is greatly improved, and the discharge capacity of the pump is increased; the mechanical power of the oil pumping screw pump is fully utilized, and the oil extraction cost is effectively reduced.

The utility model provides a gap bridge series feedback oil well pump which comprises a pump cylinder assembly and a plunger assembly, the plunger assembly is located in the pump cylinder assembly and reciprocates, the pump cylinder assembly comprises an upper pump cylinder assembly and a lower pump cylinder assembly which are connected in series, and an annular oil inlet valve mechanism is arranged between the upper pump cylinder assembly and the lower pump cylinder assembly; the pump cylinder assembly comprises an upper coupling, an upper gap bridge pipe, a lower gap bridge pipe, a two-way joint, an outer pipe and a lower coupling which are connected in sequence; the plunger assembly comprises an upper plunger, an oil passing connector and a lower plunger which are sequentially connected, the upper portion of the upper plunger is connected with a sucker rod string, a plurality of oil outlet valves are arranged in the upper plunger, the upper plunger moves in the upper pump cylinder, and the lower plunger moves in the lower pump cylinder and the pump cylinder lengthening cylinder. The pump is good in structural reliability, high in well condition adaptability, high in pump efficiency, long in service life and capable of effectively improving the comprehensive exploitation benefits of an oil field, and integrates the functions of large-displacement liquid extraction, well washing, gas injection and thin oil mixing and viscosity reduction of a heavy oil well.

This utility model belongs to the technical field of oil injection devices, specifically an oil-immersed transformer oil injection device, including an oil storage tank, an oil pump, and an oil injection pipe. A connecting component is fixedly installed on the outer wall of the oil injection pipe end. A rotating ring is provided on the connecting component, and a connecting rope is fixedly installed on the outer end of the rotating ring. A flange assembly is rotatably installed at the end of the connecting rope away from the rotating ring via a connecting block. A contact surface sealing gasket is fixedly installed on the outer wall of the flange assembly, and an inner rubber reinforcement layer is fixedly installed on the inner wall of the flange assembly. A connecting ring is integrally installed on the outer end of the flange assembly. This oil-immersed transformer oil injection device allows for quick connection between the transformer oil injection port and the oil injection flange ring, enabling quick and convenient installation and disassembly. It facilitates the limiting and fixing of the oil storage tank and allows for easy adjustment of the position of the arc-shaped baffle, enabling the disassembly and replacement of the oil storage tank.

A deviated well oil pump, wherein the oil pump is internally designed with an oil inlet valve cover with a spring, an upper oil outlet valve cover and a lower oil outlet valve cover, a block is provided above the oil inlet valve cover, a blind hole is provided inside the block, a stop pin is provided inside the blind hole, one end of the stop pin is connected to the block through a third spring, and the other end of the block is against the end face of the oil inlet valve ball. Guide ribs are designed inside the oil inlet valve cover and the oil outlet valve cover, which can limit the radial runout of the valve ball, so that it always keeps the centering state with the valve seat during axial runout, wherein a stop pin under the elastic force of the spring is designed on the upper part of the oil inlet valve ball, and the spring or the stop pin always fits with the surface of the valve ball, so that the valve ball can be reset at any well inclination angle, reducing the phenomenon that the valve ball in a highly deviated well or horizontal well is affected by gravity and thus deviates, closes lagging, or even does not close.