672 results about "Sucker rod" patented technology

The derrick type continuous oil pipe integrated sidetrack drilling operation device is provided with a base, a derrick, an injection head installation support, an injection head, a lifting oil cylinder, a hydraulic clamp and a remote operation room, one side of the derrick is fully opened, the derrick and the base are both of a lightweight rigid structure, and the injection head is installed at the top of the derrick for remote control. After the base is arranged at a wellhead and is unfolded and installed, one side of the base is connected with the lifting oil cylinder, the other side of the base is in butt joint with the ramp and the pipe rack, the derrick is rapidly erected through the lifting oil cylinder, and after the injection head is hoisted to the top of the derrick, the injection head is rapidly installed and subjected to alignment adjustment through the injection head installation support and the adjusting structure. Meanwhile, the tool rod and the elevator are arranged at the injection head, the tool rod is pulled and placed through the injection head, an oil pipe column and a sucker rod can be independently lifted or lowered, the oil pipe column and the sucker rod are pushed into a ramp from one side of an opening of a derrick, integrated sidetrack drilling operation of the coiled tubing is achieved, and sidetrack drilling efficiency and operation safety of the coiled tubing are remarkably improved.

The invention discloses a production method of 900 MPa-grade high-strength sucker rod round steel based on rare earth microalloying, and belongs to the technical field of steel and iron material production. A proper amount of rare earth elements are added into the steel, and the purification, modification and alloying effects of the rare earth elements are utilized, so that the inclusion form and distribution of the steel are improved, grains are refined, and the strength, toughness and corrosion resistance of the steel are improved; meanwhile, by reasonably controlling production process parameters of smelting, continuous casting, rolling, heat treatment and the like, the structure uniformity and the mechanical property stability of the steel are ensured. Compared with a traditional production method, the 900 MPa-grade high-strength sucker rod round steel produced through the method has higher strength and better toughness and corrosion resistance, and the requirement of the oil exploitation industry for high-end sucker rod materials can be met.

The invention belongs to the technical field of oil and gas exploitation, and particularly discloses an under-pump immovable pipe column washing sand control screen pipe column, a well washing method and a device for oil and gas exploitation, the under-pump immovable pipe column washing sand control screen pipe column comprises at least one section of sand control screen pipe, and each section of sand control screen pipe comprises an upper connector, a lower connector and a lower connector; the central pipe is connected with the upper joint; the lower joint is connected with the central pipe; and the spring type filtering structure is arranged in the central pipe, and the spring type filtering structure is configured to filter part of stratum sand carried by output liquid entering the sand control screen pipe from the lower connector in the production process and deform under the pressure effect in the well washing process to remove the stratum sand blocking the spring type filtering structure. During well flushing, the sucker rod is lifted upwards, the plunger is lifted out of the pump cylinder, then flushing fluid is pumped into the oil sleeve annulus from the ground, the spring type filtering structure is lengthened under the pressure effect, the overflowing gap is enlarged, blockages are backwashed out of the ground, and the sand control screen does not need to be pulled out of the ground.

The invention provides a method for calculating a pump indicator diagram based on a ground indicator diagram of a physical information neural network, and relates to the technical field of petroleum production. The method comprises the following steps: firstly, processing displacement data and load data at a suspension point of a rod-pumped well, and setting a displacement function and a load function at the suspension point as boundary conditions of a one-dimensional wave equation with damping for describing the fluctuation of a sucker rod string; converting the dimensioned one-dimensional wave equation with damping into a dimensionless one-dimensional wave equation with damping; then determining the structure of a physical information neural network model, constructing a physical constraint according to a dimensionless one-dimensional wave equation with damping, and determining a total loss function of the physical information neural network model; and finally, training the physical information neural network model to obtain model parameters of the physical information neural network, outputting the displacement and the load at the plunger of the oil well pump by the trained physical information neural network model, and generating a pump indicator diagram after variable replacement.

The sucker rod wellhead polish rod sealing structure comprises a sealing box arranged on a sucker rod wellhead polish rod in a sleeving mode, the upper end and the lower end of the sealing box are open, the lower end of the sealing box is fixed to the upper end of a wellhead pipe, a gland is arranged at the upper end of the sealing box, a connecting pipe is arranged in the middle of the sealing box, and the connecting pipe is communicated with an inner cavity of the sealing box. The upper end and the lower end of an inner cavity of the sealing box are each provided with a sealing packing, and a containing cavity is formed between the interval space and the inner wall of the sealing box. A detachable reducer union is arranged at the outer end of the connecting pipe, and a detachable sealing cock is further arranged on the outer wall of the connecting pipe. According to the combined sealing structure, when sealing fails, sealant can be injected into the containing cavity through the sealant injection gun, the damaged combined sealing structure is repaired, shutdown is not needed, disassembly is not needed either, repairing is rapid, and the oil extraction efficiency is improved; meanwhile, a glue injection gun is used for glue injection repair, and operation is convenient. The combined sealing structure can be repeatedly used, and the service life is long.

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 discloses a combined sucker rod centralizer, and relates to the technical field of sucker rod centralizers, the combined sucker rod centralizer comprises an upper fixing sleeve and a centralizing assembly, the upper fixing sleeve is connected to the outer side of a sucker rod body in a penetrating and sleeving manner, the lower side of the upper fixing sleeve is connected with an upper adjusting mechanism capable of moving up and down, and the upper adjusting mechanism is connected with the upper side of the centralizing assembly. According to the combined sucker rod centralizer, the rotation effect of the centralizing assembly is automatically achieved through the inertia force of up-down movement of a sucker rod and rolling fit of the slope blocks and the balls, so that the contact points of the steel balls and the inner wall of an oil pipe are continuously and dynamically changed, and the situation that local concentrated abrasion is caused due to the fact that the contact points of a traditional centralizer are fixed is avoided; and through high-low position automatic matching of the first inclined plane block and the second inclined plane block, bidirectional stable supporting of the upper guide rod, the lower guide rod and the centralizing assembly can be achieved, the situation that the centralizing assembly is unstable due to inertia offset is avoided, and the operation stability of the device is guaranteed.

The invention relates to the technical field of oil and gas field development, in particular to a thickened oil machine pumping horizontal well optical fiber monitoring production fluid profile testing system which comprises an optical fiber, a slotted small-diameter oil pipe, a crossover coupling, a pump body, an oil pipe, an oil pipe hanger, an oil extraction four-way joint, a sucker rod and a ground control unit. 2, penetrating an optical fiber from the uppermost slit of the slit small-diameter oil pipe, and fixing the optical fiber on the inner side of the lower end of the slit small-diameter oil pipe; and thirdly, the slotted small-diameter oil pipe is put into a preset position in the well. According to the method, the purpose of monitoring the multi-section fracturing fluid production profile of the thickened oil pumping horizontal well is achieved, the problems that a flowmeter of the thickened oil well is not suitable and a pumping pipe column in the well is not easy to test are solved, the fluid production contribution rate and the fracturing effect of each cluster of reservoir are accurately known through accurate monitoring of the fluid production profile, and the method is suitable for large-scale popularization and application. And an important basis is provided for reservoir understanding and fracturing transformation scheme optimization.

An apparatus and method for measuring position and magnitude of downhole mechanical friction. The apparatus comprises sensors that reside along, or in-line with, a section of equipment that is installed or removed from a wellbore. The sensing device is configured to measure friction relative to the wellbore during a work-over or other well intervention procedures where said section of equipment (tubing, rods, cable / wireline, etc.) is installed in, or removed from, the wellbore. Recorded measurements are processed to correct for dynamic forces to provide a measure of friction through the wellbore. Additionally, a method for applying the map of wellbore friction to the design and analysis of a rod actuated pump is presented. The method and apparatus presented herein pertain specifically to the handling of continuous rod, continuous tubing, or wireline / cable passing through the wellbore as measured at surface.

The utility model relates to the technical field of sucker rods, and discloses a PE (polyethylene) fully-coated sucker rod which comprises a sucker rod body, connecting ends are fixedly mounted at the left end and the right end of the sucker rod body respectively, a protective sleeve is sleeved on the outer side of the sucker rod body, and end sleeves are sleeved at the left end and the right end of the sucker rod body respectively. According to the PE fully-coated sucker rod, the outer side of the sucker rod body is coated with the protective sleeve made of the improved ultra-high molecular weight polyethylene material, so that the PE fully-coated sucker rod can better adapt to a well section of 1800-2000 m, and meanwhile, the PE fully-coated sucker rod has better wear resistance; the two ends of the sucker rod body are wrapped and sleeved with the end sleeves made of engineering plastic alloy materials, so that the sucker rod body has better high temperature resistance, friction resistance and corrosion resistance, the end sleeves located at the ends of the sucker rod body are extruded through cooperation of the limiting rings, the inner threaded sleeves, the outer threaded sleeves and the circular-truncated-cone-shaped ring sleeves, and therefore the sucker rod body is prevented from being damaged. And the connection between the end part sleeve and the end part of the sucker rod body is tighter.

The utility model relates to the field of oil extraction equipment, in particular to a sucker rod centralizer which aims at solving the technical problem that an existing centralizer cannot adapt to oil pipes of different specifications. The sucker rod centralizer comprises a fixing ring, the movable ring and the fixed ring are coaxially arranged; the plurality of groups of righting mechanisms are distributed around the axis of the movable ring at intervals; the righting mechanism comprises two supporting rods and a sliding assembly, one ends of the two supporting rods are hinged to the sliding assembly, and the other ends of the two supporting rods are hinged to the side wall of the fixed ring and the side wall of the movable ring respectively. The driving mechanism is arranged on the fixed ring and is in transmission connection with the movable ring so as to drive the movable ring to move in the axial direction of the movable ring. According to the sucker rod centralizer, the movable ring can be separated from or get close to the fixed ring in the length direction of the sucker rod through the driving mechanism, so that the angle between the upper supporting rod and the lower supporting rod is adjusted, the position of the sliding assembly is adjusted, the sliding assembly can adapt to oil pipes with different inner diameters, and the adaptability is improved.

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 petroleum engineering, and provides a shearing and sealing integrated well repair blowout preventer which comprises a shell 6, a shearing flashboard 7 and a flashboard feeding mechanism used for driving the shearing flashboard 7, the shell 6 is in a hollow cross shape, and a sucker rod passes through the drift diameter of the upper side and the drift diameter of the lower side of the cross. A pair of coupled shear flashboards 7 is symmetrically arranged in the left drift diameter and the right drift diameter respectively and comprises an upper shear flashboard 71 and a lower shear flashboard 72 which are coupled, sheared and bent, and the upper shear flashboard 71 and the lower shear flashboard 72 are driven by a flashboard feeding mechanism to shear and bend a sucker rod inwards in a left-right V shape, so that well shut-in and flow control are achieved. The bending groove design is introduced into the shearing flashboard structure, the flashboard can bend an oil pipe while shearing the oil pipe, blowout high-pressure fluid in a pipe column is preliminarily controlled, and the water hammer impact and flow-induced vibration phenomena are effectively relieved; the flow guide mechanism balances the pressure of the upper part and the lower part in the vertical drift diameter, and the well opening difficulty is reduced.

The present invention relates to the field of spraying technology, and provides an anti-corrosion spraying device for surface treatment of sucker rods, which includes a frame, an anti-corrosion liquid tank, a horizontal pipe, a spray head and a plurality of brackets. Above each bracket, there is a triangular plate. The bottom surface of the triangular plate is a horizontal plane, and the top surface of the triangular plate is an inclined plane. A linear driving element I is installed on the frame. The telescopic end of the linear driving element I is connected to a slider. A chute is arranged on the top surface of the triangular plate, and the slider is slidably connected with the chute. The end faces of the slider and the chute are connected by a first return spring. The bottom surface of the triangular plate is connected with an upper brush cotton, the surface of the bracket is in an arc concave shape, and the surface of the bracket is connected with a lower brush cotton. The anti-corrosion liquid tank transports the anti-corrosion liquid to the lower brush cotton and the upper brush cotton through a pipeline. During use, the upper brush cotton presses on the sucker rod and pushes the sucker rod to rotate. The upper brush cotton and the lower brush cotton will brush the contact part between the sucker rod and the bracket, ensuring that the sucker rod undergoes a full-range anti-corrosion spraying operation.

The invention relates to the technical field of oil well operation tools, in particular to a midway pressure test hydraulic oil drainage type tubing anchor and a using method thereof.The hydraulic tubing anchor comprises a center pipe, a cone connector, an anchor tile and a piston assembly, the cone connector is arranged at the top of the center pipe, and a sealing ring I is arranged between the cone connector and the center pipe for sealing; the center pipe is connected with an oil pipe through the cone connector, the anchor tile and the piston assembly are sleeved on the center pipe, the anchor tile is arranged between the cone connector and the piston assembly, one end of the anchor tile is provided with a cone hole matched with the cone connector, and the other end of the anchor tile is connected with the piston assembly. The oil drainage action can be completed by adopting a mode of directly pressing into the oil pipe, and any tool does not need to be put into the oil pipe; mainly solves the problem that in the operation process of an oil well, under the condition that a tubular column is not moved, the oil drainage function of the tubular column is realized, so that conventional well washing can be carried out, an oil tube and a sucker rod are cleaned together, and crude oil brought out and environment pollution caused by tube and rod lifting are reduced.

The plunger pump for oil pumping comprises a cylinder body, a plunger, a threaded driving rod, a liquid inlet one-way valve port, a liquid outlet one-way valve port and a rotary power output device, the plunger is arranged in the cylinder body in a sliding mode and can do reciprocating motion, and a sealed working containing cavity is formed by one end of the plunger and the top of the cylinder body; the other end of the plunger is connected with the rotating power output end of a threaded driving rod, and the rotating power input end of the threaded driving rod extends out of the cylinder body to be connected with the rotating power output end of a rotating power output device. The liquid inlet one-way valve port is circumferentially arranged on the upper portion of the cylinder body, an inlet of the liquid inlet one-way valve port is communicated with an oil layer, an outlet of the liquid inlet one-way valve port is communicated with the sealed working cavity, the liquid outlet one-way valve port is arranged on the top of the cylinder body, and an inlet of the liquid outlet one-way valve port is communicated with the sealed working cavity and an outlet of the liquid outlet one-way valve port is communicated with an overground oil outlet pipeline. The plunger pump for oil pumping is convenient to install and convenient to pump oil, and meanwhile the defect that an oil pumping unit does work on an oil pumping rod in the working process is overcome.

The invention relates to the technical field of bearing lubrication, and discloses a petroleum sucker rod pivot connecting device adopting a self-lubricating bearing and a sealing structure, the petroleum sucker rod pivot connecting device comprises a polish rod, a sucker rod and a connecting seat arranged at the end of the polish rod and the end of the sucker rod, the end of the polish rod is in threaded connection with the inner wall of the connecting seat, and the bearing is rotatably mounted on the inner wall of the connecting seat. According to the pivot connecting device for the petroleum sucker rod, the inner ring of the bearing is driven by the sucker rod to rotate, and when the bearing is insufficient in lubrication, the outer ring of the bearing can overcome the elastic force of the torsional spring to rotate by a certain amplitude; the guide block drives the upper end of the telescopic sleeve to move downwards along the spiral groove, the friction force between the overturning block and the push rod enables the overturning block to overturn, the two ends of the overturning block are clamped, the sliding ring drives the overturning block and the push rod to move downwards synchronously, and the push rod pushes the piston in the oil storage bin. Lubricating grease stored in the oil storage bin is injected into the bearing through the oil conveying pipe.

The invention relates to the technical field of spraying, and provides a sucker rod surface treatment anti-corrosion spraying device which comprises a rack, an anti-corrosion liquid box, a horizontal pipe, a spraying head and a plurality of supports, a triangular plate is arranged above each support, the bottom face of each triangular plate is a horizontal plane, the top face of each triangular plate is an inclined plane, and a first linear driving element is installed on the rack; the telescopic end of the first linear driving element is connected with a sliding block, a sliding groove is formed in the top face of the triangular plate, the sliding block is connected with the sliding groove in a sliding fit mode, the sliding block is connected with the end face of the sliding groove through a first reset spring, the bottom face of the triangular plate is connected with upper brush cotton, the surface of the support is in an arc concave shape, and the surface of the support is connected with lower brush cotton. The preservative liquid box conveys preservative liquid into the lower brush cotton and the upper brush cotton through pipelines. During use, the upper brush cotton presses the sucker rod and pushes the sucker rod to rotate, the upper brush cotton and the lower brush cotton can brush the contact portion of the sucker rod and the support, and it is guaranteed that the sucker rod is subjected to all-around anti-corrosion spraying operation.

The utility model discloses a sucker rod sealer for replacing a light rod under pressure, and relates to the technical field of equipment under pressure. The utility model comprises a shell and a sealing assembly installed on both sides of the shell; the shell comprises a shell, a lower connecting pipe and an upper connecting pipe whose inner cavities are interconnected, the lower connecting pipe is coaxially arranged with the oil pipe and its lower end is connected to the oil well tee, the shell is fixed at the top of the lower connecting pipe, the upper connecting pipe is fixed at the top of the shell and the upper end of the upper connecting pipe is connected to the oil well tee; the sealer is installed on the oil well tee, when replacing the light rod, the bottom end of the light rod is lifted above the sealer, the screw is screwed to drive the sealing strip to slide, so that the sealing strips on both sides clamp the sucker rod, and the flow channel in the oil pipe at the lower end of the light rod is closed under pressure, so as to facilitate the replacement of the light rod, and the light rod is conveniently replaced by the device, the efficiency is increased, the cost is saved, the discharge of crude oil during depressurization, pressure reduction and well washing operations is avoided, and the pollution of formation oil and gas and the ground by clean water well washing is reduced.

The present invention relates to the field of automation of sucker rod operation, and discloses a sucker rod elevator and centering device, which includes a sucker rod elevator core-buffering assembly and a sucker rod centering assembly; the sucker rod elevator core-buffering assembly includes a core-buffering body, a linkage core-buffering mechanism and a hydraulic drive mechanism; the sucker rod centering assembly includes a base, a cylinder, a hinge mechanism and a clamping centering mechanism; the linkage core-buffering mechanism includes a clamping core-buffering seat, a replaceable clamping core-buffering and a rotating gear plate, the hydraulic drive mechanism includes a hydraulic cylinder, a cylinder seat, a movable seat and a guide fixed seat, the hinge mechanism includes a cylinder hinge ear, a hinge ear pin and a cylinder connecting rod, and the clamping centering mechanism includes a side square tube, a transition square tube, a centering square tube and a centering splint. The present invention can be driven by hydraulic core-buffering without manual operation, and the range of specifications suitable for sucker rods is widened; the centering effect is ideal, and the quality and efficiency of sucker rod operations are improved; the integrated setting is conducive to rapid positioning and improves installation efficiency.

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 utility model relates to the technical field of sucker rod machining, and particularly discloses a sucker rod two-end continuous machining device which comprises a base, and a front carrier roller, a sliding rail and a rear carrier roller are sequentially arranged on the base from front to back. A sliding table is slidably connected to the sliding rail, a linear module for driving the sliding table to move front and back is arranged on the base, an annular frame is arranged at the top of the sliding block, a rotating ring is rotatably connected into the annular frame, and a rotating mechanism for driving the rotating ring is arranged on the sliding table. A front three-jaw chuck and a rear three-jaw chuck which are coaxially arranged are arranged on the front side and the rear side of the rotating ring; inverted-L-shaped supports are arranged on the base and located on the front side of the front three-jaw chuck and the rear side of the rear three-jaw chuck, a vertical lifting mechanism is arranged at the free end of the top of each inverted-L-shaped support, and the bottom of the movable end of each lifting mechanism is connected with a tool bit used for conducting thread machining on the lead screw. Threads at the two ends of the sucker rod can be continuously machined, carrying operation is reduced, and efficiency is improved.

The invention belongs to the technical field of oil field downhole operation, and discloses a sucker rod oil scraping anti-pollution device which comprises a Christmas tree upper flange, a Christmas tree lower flange, a Christmas tree upper flange, a Christmas tree lower flange and a Christmas tree lower flange, mounting a jackscrew which is connected to the upper flange of the Christmas tree; the oil collecting barrel is connected with the upper flange of the Christmas tree through the mounting jackscrew; the oil scraping assembly comprises an installation disc, a triangular cover, an octagonal beef tendon oil scraping disc, beef tendon strips, a split type elastic contraction oil scraping rubber core and an annular rubber ring, gas pressure generated when a sucker rod moves can be effectively absorbed and buffered, gas in a cavity is stably guided out, the phenomenon of crude oil splashing is eradicated, meanwhile, large-area oil dirt stripping is achieved through the flexible beef tendon strips, and the oil scraping efficiency is improved. The upper layer split type elastic contraction oil scraping rubber core is matched with a dynamic pressing structure to scrape residual oil films, the oil scraping efficiency and the sealing performance are remarkably improved through double protection, the problem of pollution caused by oil contamination leakage is solved, and a reliable guarantee is provided for clean production of an oil field.

The invention relates to the technical field of well repairing devices, in particular to a sucker rod lifting appliance which comprises a sucker rod elevator provided with an opening groove with a forward opening for a sucker rod to penetrate through, and is characterized by further comprising a sucker rod lifting mechanism and a mounting frame, the sucker rod elevator is mounted on the mounting frame, and the sucker rod lifting mechanism is mounted on the mounting frame. The sucker rod lifting mechanism comprises a pressing weight, a cantilever, a jacking seat and a jacking driving component used for driving the jacking seat to move up and down, the front end of the cantilever is hinged to the pressing weight located over the open groove and used for bearing the end of the sucker rod, the pressing weight is provided with a pressing weight opening allowing the sucker rod to penetrate through, and the rear end of the cantilever is hinged to the mounting frame. And the middle part of the cantilever is hinged with the jacking seat. The sucker rod lifting mechanism is reasonable in structure, and the sucker rod lifting mechanism is arranged, so that the sucker rod can be lifted through the ram when the sucker rod is put down, the sucker rod is prevented from being bent under the action of the gravity of the sucker rod, it is guaranteed that butt joint threads of the sucker rod are aligned, and butt joint wrong buckling of the sucker rod is avoided.

The invention relates to the technical field of polishing devices, in particular to a petroleum sucker rod body polisher device and method in the intelligent manufacturing equipment industry. Comprising a mounting frame and a servo motor, the output shaft end of the servo motor is provided with a horizontal variable-stroke part, the horizontal variable-stroke part is connected with a horizontal sliding frame which is variable in stroke and horizontally reciprocates, the horizontal sliding frame is connected with a vertical pressurizing frame in a sliding mode, and a vertical variable-stroke part which drives the vertical pressurizing frame to reciprocate in a variable-stroke mode is fixedly mounted on the horizontal sliding frame. Two winding rollers are rotationally mounted on the vertical pressurizing frame, a reciprocating driving system for driving the two winding rollers to synchronously rotate in a reciprocating manner is arranged on the vertical pressurizing frame, a polishing abrasive belt is wound between the two winding rollers, and a liquid distribution cleaning system for synchronously and rotationally brushing the polishing abrasive belt and cooling the polishing abrasive belt in a water cooling manner is arranged on the vertical pressurizing frame. By means of the linkage design of the horizontal stroke changing piece and the vertical stroke changing piece, the grinding limitation of fixed pressure and fixed stroke in the prior art is broken through, and a cooperative control mechanism dynamically matched with the stroke and the pressure is constructed.

The invention relates to the technical field of oil extraction equipment, in particular to a wellhead Christmas tree sealing device capable of preventing leakage. A flange of a bottom pipe opening of the leakage-proof pipe is connected with a wellhead flange, the top of the leakage-proof pipe is detachably connected with a dust cover, and a penetrating-out opening for a sucker rod to penetrate out is formed in the dust cover. A sealing structure connected to the outer wall of the sucker rod in a sealed mode is fixed into the leakage-proof pipe. A pressure relief structure is arranged on the side portion of the leakage-proof pipe and located below the sealing structure. A cleaning structure used for scraping off oil on the outer wall of the sucker rod is connected to the upper portion of the sealing structure. In the anti-leakage device, the sealing structure in the anti-leakage pipe is tightly connected to the outer wall of the sucker rod, so that oil leakage can be effectively prevented; the pressure relief structure arranged on the side portion of the leakage-proof pipe is located below the sealing structure, when the pressure in the well rises suddenly, the pressure relief piston compresses the control pressure spring under the pressure effect, the pressure relief opening is opened, redundant pressure and petroleum are discharged to the pressure relief storage tank through the oil discharging pipe, and automatic pressure relief is achieved.

A walking beam type energy-saving pumping unit with a gravity compensation mechanism and turbine power generation mainly comprises a walking beam type pumping unit base, a solar power generation device, the gravity compensation mechanism, a horse head, a pumping rod, a pumping well and the like. In the working process, the gravity compensation mechanism can counteract the driving torque through potential energy release of the balancing weight; the turbine energy storage power generation device is provided with a turbine in a pumping well cavity to form a double-stroke fluid kinetic energy electromagnetic capturing mechanism; the solar power generation device efficiently absorbs solar radiation and converts the solar radiation into electric energy, and the load requirement for a traditional power grid is remarkably reduced. The energy consumption of the oil pumping unit can be effectively reduced, the stored energy of the oil pumping unit is increased, so that the dependence on a power grid is reduced, the energy safety in China is guaranteed, and wide application prospects are achieved.

The utility model provides a high-strength sucker rod rolling repair device. The high-strength sucker rod rolling repair device comprises a bottom plate, a plurality of supporting legs are fixedly installed at the bottom of the bottom plate, two first fixing blocks are fixedly installed at the top of the bottom plate, first grooves are formed in the two first fixing blocks, moving plates are arranged above the two first fixing blocks, and the moving plates are fixedly installed on the bottom plate. Two first hydraulic rods are fixedly mounted on each of the two first fixing blocks; through the moving mechanism and the repairing mechanism, the sucker rod is fixed between the second fixing block and the first fixing block, the stable state is kept, the sucker rod is polished and repaired through a repairing roller, meanwhile, through a third hydraulic rod, the repairing roller can apply proper pressure to the sucker rod, rolling operation is continuously conducted on a repaired area, and the repairing efficiency is improved. And the high-strength sucker rod rolling repairing device is used for repairing the sucker rod.

A rod head armoring protection surface organic coating type anticorrosion sucker rod armoring processing device relates to the technical field of metal surface coating and comprises a forming platform which is formed by arranging a first transverse platform, a longitudinal platform and a second transverse platform in a Z shape and sequentially welding the first transverse platform, the longitudinal platform and the second transverse platform. A continuous conveying assembly, a surface cleaning unit, an anti-corrosion spraying unit, an armoring spraying unit and a curing and shaping unit are arranged on the forming platform. The continuous conveying assembly comprises a first transverse conveying unit, a longitudinal conveying unit and a second transverse conveying unit. The problems that the production efficiency and the automation degree are low, the quality of a protective layer is poor, a complex structure is difficult to protect, and the connection of production processes is insufficient in the anti-corrosion treatment process of the sucker rod head in the traditional technology are solved.