195 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 design method of an anti-corrosion and wear-resistant reinforced sucker rod, and relates to the technical field of oil exploitation equipment. According to the method, chemical components of the sucker rod are optimized, alloy elements such as chromium, nickel and molybdenum and microalloy elements such as niobium, titanium and vanadium are added, meanwhile, the surface treatment processes of boriding, nickel-phosphorus alloy plating and polyurethane elastomer coating are adopted, all links of the manufacturing process are optimized, and the manufacturing process is optimized. The corrosion resistance, the wear resistance and the comprehensive mechanical property of the sucker rod are obviously improved. Tests prove that the sucker rod adopting the design method can effectively deal with a complex and severe underground environment, the service life is prolonged, the oil extraction operation cost of an oil field is reduced, and the sucker rod has a wide application prospect.

The invention provides an energy-saving oil pumping unit, which belongs to the technical field of oil exploitation equipment and comprises a support frame, a winding wheel body, a motor, a first traction piece, a second traction piece, an oil pumping rod and an adjustable counterweight assembly. The winding wheel body is rotationally arranged on the supporting frame; the motor is arranged on the supporting frame, is in transmission connection with the winding wheel body and is used for driving the winding wheel body to rotate; the first traction piece and the second traction piece are respectively wound on two opposite sides of the winding wheel body; the sucker rod is connected to the free end of the first traction piece; the adjustable counterweight assembly is connected to the free end of the second traction piece and used for balancing the total gravity of the sucker rod and the sucker rod underground load by adjusting the gravity of the counterweight of the adjustable counterweight assembly. According to the energy-saving oil pumping unit, the total gravity of the oil pumping rod and the load of the oil pumping rod is matched in real time, so that the driving motor only needs to provide a small amount of power for overcoming the friction force of the system to complete lifting operation, and the energy consumption in the lifting process of the oil pumping unit is reduced.

This invention belongs to the technical field of oil extraction equipment, specifically a tower-type intelligent control long-stroke beamless pumping unit, including a tower and a flexible rod pumping mechanism mounted on the tower; it also includes a plunger self-weight adjustment mechanism, which is used to adjust the weight of the pump plunger. By setting up the plunger self-weight adjustment mechanism, during the descent of the pump plunger, the total weight of the counterweight tube, sucker rod string, and pump plunger increases through the delivery of counterweight oil, thereby forcing the pump plunger to descend at a faster rate in the tubing. Before the pump plunger rises, the counterweight oil in the counterweight tube, sucker rod string, and pump plunger is discharged, thereby reducing the total weight of the counterweight tube, sucker rod string, and pump plunger, and thus reducing the pressure exerted by the counterweight tube, sucker rod string, and pump plunger on the drive components.

This invention relates to the field of wellhead operation technology and is a rod transfer device for transferring rod-like parts. It includes a first tube body, a second tube body, a triggering component, and mounting connectors. The first and second tube bodies are hinged together, and a through-passage is formed between the inner walls of the first and second tube bodies. A power component is provided between the first and second tube bodies to open and reset them around the hinge. When the power component opens, it moves the second tube body relative to the first tube body to an open state. In the open state, the lower parts of the second and first tube bodies form a slip opening at the open point that communicates with the through-passage. This invention can transport sucker rods with various end connections, such as those with couplings, rod bodies, or straightening blocks, and allow them to fall onto the sucker rod bracket of the pipeline transport platform in a rear-end aligned state, facilitating subsequent automated transport operations. It is easy to manufacture and use.

The utility model discloses a clockwise rotation sucker rod anti-falling centralizer which comprises a centralizing assembly used for centralizing and antifriction of a sucker rod and a connecting assembly used for being in butt joint with a sucker rod string, the connecting assembly is arranged on the centralizing assembly, and an anti-falling assembly used for one-way locking is arranged in the connecting assembly. An outer sleeve used for wrapping the anti-disengaging assembly is arranged between the centralizing assembly and the connecting assembly. By means of the linkage design of the anti-disengaging assembly and the upper spiral angle teeth, the functions that the sucker rod is clamped and prevented from disengaging during clockwise rotation and is loosened and convenient to install during anticlockwise rotation are achieved, and the technical problem that in the prior art, the sucker rod is prone to disengaging is solved; meanwhile, when the oil rod reciprocates up and down, the anti-falling centralizer is driven through the pressure of the liquid amount, eccentric wear of the oil rod is prevented through rotation of the anti-falling centralizer, and oil field production equipment such as the oil rod and an oil pipe is protected; underground accidents caused by breakage and falling of the oil rod are avoided, the maintenance cost is saved, the productivity of an oil well is improved, and the labor intensity of workers is reduced.

A conveyor for a sucker rod pump, for deployment downhole within a passage defined by an inner surface of a reservoir fluid conductor that is emplaced within a wellbore extending into a subterranean formation, for effecting production of reservoir fluids, comprising. The conveyor includes a rod configuration, and a guide configuration. The guide configuration is coupled to the rod configuration, and is defined by at least one protuberance. The protuberance defines an air foil shape.

The invention relates to the technical field of sucker rod production, and discloses a sucker rod anticorrosive coating spraying device which comprises an air duct surrounding a sucker rod in a clearance mode and allowing the sucker rod to penetrate through, thermal spraying gun heads spraying the sucker rod symmetrically penetrate through the two side walls of the air duct, and airflow output assemblies penetrate through the upper wall and the lower wall of the air duct. Each airflow output assembly comprises a first air inlet pipe penetrating through the wall of the air duct and an air distribution box connected to the inner end of the first air inlet pipe, the air outlet direction of the air distribution box is vertical and corresponds to the two sides of the sucker rod, and the four airflow output assemblies are vertically symmetrical; the airflow output assembly outputs airflow, so that the moving paths of the thermal spraying materials at the upper and lower ends are bent towards the sucker rod and are respectively attached to the upper and lower sides of the sucker rod; the double-side thermal spraying gun heads are used for oppositely spraying the two sides of the sucker rod which linearly penetrates through the double-side thermal spraying gun heads, and the airflow output assembly is used for changing spraying material spraying paths on the edges of the upper end and the lower end, so that originally lost spraying materials are focused on the upper side and the lower side of the sucker rod, and the utilization rate of the spraying materials is increased.

This invention relates to a combined downhole pump, comprising a multi-section pump assembly. Each pump assembly includes a stator and a rotor. A positioner connects each pump assembly section. The positioner includes a housing assembly and a sucker assembly, with both ends of the sucker assembly connected to the rotor. A casing is also provided between the outer side of a portion of the sucker assembly and the inner side of the housing assembly. A bearing assembly and a sealing assembly are respectively provided on the outer side of the casing. An oil passage ring is also provided on the outer side of the sucker assembly, with at least one oil passage hole. An adjuster is also provided at the end of the oil passage ring furthest from the casing. By providing the positioner, not only can the connection between each pump assembly section be achieved, but an adjuster is also provided in the housing assembly. The adjuster consists of a centralizing joint and a bearing ring. By providing a conical surface on the bearing ring, when the sucker rod connected to the centralizing joint swings, the guiding effect of the conical surface ensures that the centralizing joint and the bearing ring are coaxial, thereby ensuring that the sucker rod, centralizing joint, and bearing ring are coaxially arranged.

The present application relates to a kind of methods for manufacturing full-coated sucker rod, step one, sucker rod matrix is manufactured by machining method, the middle part of the finished sucker rod matrix is rod body, two end parts are rod head and two ends are symmetrically arranged, the rod head is from the end of sucker rod matrix towards rod body in turn threaded joint, unloading groove, shoulder, wrench square and flange, the outer surface of the rod body is covered with anticorrosive non-metal material layer;Step two, metal sleeve is made by machining method, and the finished metal sleeve is cylindrical;Step three, by extrusion, the metal sleeve is tightly attached to the outer surface of the shoulder, wrench square and flange, and completely covers the shoulder, wrench square and flange, and the anticorrosive non-metal material layer is covered, and the metal sleeve outer surface and the corresponding position of the shoulder, wrench square and flange form the same shape as the shape of the outer surface of the shoulder, wrench square and flange.The present application can reduce the cost and workload of machining, and facilitate on-site operation, improve work efficiency.

The present application relates to the technical field of oil and gas exploitation, and particularly relates to a heat pump circulation viscosity reduction device based on center pipe closed heat exchange and a use method. The technical scheme is that a center pipe heat exchange unit is located in a production oil pipe, and a ground circulation unit is located at one side of a wellhead device; a hollow sucker rod column of the center pipe heat exchange unit is provided with an inner center pipe, a bottom of the inner center pipe is provided with a center pipe bottom head, and a pipe wall of an upper side is provided with more than one center pipe bottom side opening; the beneficial effects are that heat exchange working medium heated by a heat pump is lowered along the inner center pipe to the hollow sucker rod column in a wellbore, and then is raised to a near ground position along the center pipe bottom side opening between the inner center pipe and the hollow sucker rod column, closed heat exchange prevents blockage and circulation, energy consumption is greatly reduced by using the heat pump technology and the geothermal energy, safety is improved, the function of preventing blockage and increasing production is effectively realized, and the number of workover operations is reduced.

The invention relates to the technical field of laser cutting, in particular to a sucker rod machining auxiliary device which comprises a main machine, a feeding frame, a conveying frame and a discharging conveying line. A sucker rod is pushed to a lower roller through a feeding mechanism, then an adjusting mechanism is controlled to drive a middle roller to move downwards, and the sucker rod is clamped between the lower roller and the middle roller; the upper chain wheel driving mechanism and the lower chain wheel driving mechanism can be controlled to start, the sucker rod is conveyed into the lower rotary clamping mechanism to be subjected to laser cutting, in the downward moving process of the middle roller, the positioning rod can be driven to move upwards at the same time, at the moment, the feeding mechanism can be controlled again to operate, the sucker rod is pushed to the middle roller, and then the middle roller is controlled to move upwards to reset. The sucker rods are clamped between the middle roller and the upper roller, then after laser cutting of the lower sucker rod is completed, the lower chain wheel driving mechanism is controlled to be started, the sucker rods are conveyed to the upper rotary clamping mechanism to be subjected to laser cutting, and the steps are repeated, so that alternate cutting of the two sets of sucker rods is achieved.

The blowout prevention device comprises a sealing box packing pressing cap mounted on an oil pumping unit, a mounting seat is connected to the sealing box packing pressing cap, a valve seat is mounted in the mounting seat and located above the sealing box packing pressing cap, a sucker rod is mounted in the valve seat, and the sealing box packing pressing cap is connected to the sealing box packing pressing cap. The sucker rod penetrates through the sealing box packing pressing cap and extends into a well; a first limiting piece and a second limiting piece are mounted on the mounting seat, and one end of the first limiting piece is pressed on the top of the second limiting piece; a sealing ball is placed in the mounting seat, a pushing head is mounted in the mounting seat, a pushing assembly is connected to the pushing head and fixed in the mounting seat, a limiting boss is arranged on the pushing head, and the limiting boss is attached to the bottom of the second limiting part. According to the device, effective prevention and response to breakage and falling of the sucker rod are achieved, the safety and efficiency of oil field operation are remarkably improved, a wellhead can be quickly closed at the critical moment, and blowout accidents are prevented.

A well completion includes a downhole pump, a continuous rod string (COROD) and a first quick-coupling connector assembly. The downhole pump can be disposed at a downhole location within a wellbore. The downhole pump can lift hydrocarbons from the downhole location to a surface of the wellbore. The COROD can couple to the downhole pump. The COROD can axially reciprocate about a longitudinal axis of the wellbore. The first quick-coupling connector assembly includes a first connector coupled to an end of the COROD. The first quick-coupling connector assembly includes a second connector coupled to an end of the downhole pump. The first connector and the second connector can be coupled by an axial force toward each other and be de-coupled by an opposing axial force away from each other.

The application discloses a kind of screw pump well electric heating current collection converter, including upper rotary converter and spring leg structure located below rotary converter;Rotary converter inside integrated carbon brush slip ring, carbon brush slip ring is connected with the cable of current collector by slip ring terminal post to realize the column rotation of screw pump and is connected to power supply;Spring leg structure is integrated with spring and spring rod to prevent upper rotary converter from shaking.The current collection converter of the application is used to solve the problems of difficult wellbore lifting, complex ground driving equipment and other problems in screw pump well, by installing a set of current collection converter on the upper part of screw pump driving head, cooperating with hollow sucker rod for downhole electric heating, to improve the temperature of crude oil in wellbore, reduce the viscosity of crude oil, so as to ensure normal and stable production of screw pump well.

The utility model discloses an underground oil sleeve intercommunication valve, including sleeve and the upper joint and lower joint of fixed in the upper and lower ends of sleeve respectively, the upper joint is connected with the lower end of oil pipe, and the inner seal sliding sleeve is arranged in the middle part of the cavity of sleeve, and the sucker rod is arranged in the sleeve and is through the sleeve and inner seal sliding sleeve, and the lower part side of sucker rod is connected with control coupling, and the bottom of the upper joint in the sleeve is provided with upper card station, and the upper and lower ends of inner seal sliding sleeve are provided with elastic inner clamping claw, and elastic inner clamping claw is matched with upper card station and lower card station respectively, the utility model is used for the oil and water well workover operation process, and when lifting oil pipe, the oil and water in the oil pipe are arranged back to the well, and when the oil well needs to be washed hot, the sucker rod is lifted to open the oil discharge passage, and the oil sleeve space is communicated, can be washed well, and after well washing, the sucker rod is lowered, the passage is closed, and the oil is pumped normally, preventing the environmental pollution caused by falling.

The utility model discloses a heat treatment device for a sucker rod, which comprises a quenching mechanism, a high-frequency induction heating mechanism and a conveying mechanism, and a high-frequency induction coil of the high-frequency induction heating mechanism is arranged at a conveying track of the conveying mechanism; according to the scheme, conveying, heating and quenching of the sucker rod are achieved in a mechanical mode, so that the working efficiency of heat treatment is improved, and the problem that a user is prone to being scalded when the sucker rod is transferred manually in a traditional mode is solved.

The application discloses an oil outlet valve cover of a sucker rod pump and the sucker rod pump. The oil outlet valve cover is characterized in that the outer diameter of the oil outlet valve cover body provided with a liquid flow hole is larger than the inner diameter of a pump barrel, the upper end of the oil outlet valve cover body is connected with a sucker rod string, and the lower end of the oil outlet valve cover body is sequentially connected with a valve body of a sucker rod pump plunger and a traveling valve through a connecting short joint. The oil outlet valve cover body can move up and down in the space formed after the oil pipe is connected with an oil pipe connector and the pump barrel and is always located above the pump barrel. The sucker rod pump in the application can be applied to oil wells requiring small pump depth pumping and can also be normally applied to high-inclination wells and small-diameter sidetracking wells. The application effectively improves the working environment of the oil outlet valve cover, significantly reduces or eliminates the failure of the oil outlet valve cover caused by the above problems, and thus completely avoids the short pump inspection period and high workover operation cost caused by the failure of the oil outlet valve cover.

The utility model relates to an overhung strong on-off hollow gas-proof feedback pump and relates to the technical field of oil pumping pumps, comprising upper and lower pump cylinders arranged side by side from top to bottom, the upper and lower pump cylinders being connected through a sand-set gas-proof coupling, the inner diameter of the sand-set gas-proof coupling being greater than the inner diameters of the upper and lower pump cylinders, a flexible plunger assembly being arranged to reciprocate together between the upper and lower pump cylinders, the lower end of the flexible plunger assembly being connected to a forced mechanical valve group, the lower end of the lower pump cylinder being connected to a bottom pump cylinder, and the oil inlet of the forced mechanical valve group being fixedly connected to a plunger tube that is slidingly constrained in the bottom pump cylinder. The utility model solves the problems of the conventional oil pumping pump, i.e., the oil pumping pump is prone to gas locking during the up and down strokes, which results in a small oil output or even no oil output, seriously affecting the normal operation of the oil well, and the problems of the existing rod column, i.e., the friction between the thick oil and the oil pumping rod is large, the oil pumping rod is subjected to a large force, and the risk of the oil pumping rod being broken off is increased.

This invention relates to the field of oil and gas extraction technology, and particularly to a heat pump circulation viscosity reduction device and its usage method based on a central tube closed-loop heat exchange. The technical solution is as follows: the central tube heat exchange unit is located inside the production tubing, and the surface circulation unit is located on one side of the wellhead device; an internal central tube is installed inside the hollow sucker rod string of the central tube heat exchange unit, with a central tube bottom end cap at the bottom and one or more central tube bottom side openings on the upper tube wall; its beneficial effects are: the heat exchange working fluid heated by the heat pump is pumped down the internal central tube to the hollow sucker rod string inside the wellbore by the surface circulation pump, and then enters the annulus between the internal central tube and the hollow sucker rod string through the central tube bottom side opening, rising to near the surface. This closed-loop heat exchange and anti-clogging circulation, through the use of heat pump technology and geothermal energy, significantly reduces energy consumption, improves safety, effectively achieves the function of anti-clogging and increased production, and also reduces the number of well workover operations.

The utility model discloses a resistance reduction type sucker rod centralizer which comprises a sucker rod body and a centralizer casing pipe shaping shell, the centralizer casing pipe shaping shell wraps the sucker rod body, an inclined spiral centralizing and positioning spiral groove is formed in the outer portion of the sucker rod body, and a resistance reduction inner sleeve is arranged in the sucker rod body. The resistance reduction type sucker rod centralizer comprises a sucker rod body and a resistance reduction inner sleeve arranged on the sucker rod body, the resistance reduction inner sleeve comprises a nitrile rubber damping layer, the nitrile rubber damping layer and the inner wall of the sucker rod body are bonded and formed through a flame-retardant binder, and a foamed aluminum energy absorption layer is arranged on the other side of the nitrile rubber damping layer. The shock absorption and righting functions are provided for shaking of the sucker rod, the duration time of the extrusion action between the sucker rod and the inner wall of the outer sleeve is prolonged, and therefore the extrusion pressure is reduced, the structural intact degree of the oil pumping device is effectively protected, and the service life of the oil pumping device is prolonged.

The application discloses an oil pumping rod box type integrated tempering furnace, which comprises a furnace body support with a guide rail, a tempering furnace body installed on the furnace body support, wherein the tempering furnace body is provided with a heating device, the tempering furnace body has a heating space, and the tempering furnace body is provided with an inlet and an outlet which are in communication with the heating space; a sealing door is slidably installed on the guide rail and cooperates with the inlet and the outlet to seal the heating space; the application relates to the technical field of tempering furnaces, and the box type integrated tempering furnace is designed in cooperation with a tempering and cooling mechanism, a closed-loop cooling system, a horizontal push-pull sealing door and a turnover-telescopic assembly, so that seamless connection of oil pumping rod quenching and tempering is realized, heat loss and oxidation risk are reduced, the sealing property, quality stability and surface quality are improved, the labor cost is reduced, and the production demand of high-strength and high-corrosion-resistance oil pumping rods is met.

The utility model relates to the technical field of oil extraction, in particular to a novel oil sleeve packing synchronous suspension casing head device which comprises a mandrel type casing hanger assembly and a mandrel type oil pipe hanger assembly which are connected through a packing sealing sleeve. The packing sealing sleeve is arranged in the oil pipe four-way joint, the mandrel type casing pipe hanger assembly and the mandrel type oil pipe hanger assembly are inserted into the two ends of the oil pipe four-way joint respectively and connected with the packing sealing sleeve, the other end of the mandrel type casing pipe hanger assembly is inserted into the casing four-way joint, and the other end of the mandrel type oil pipe hanger assembly is inserted into the crossover flange. A sucker rod blowout preventer is connected to the upper portion of the crossover flange, and a slip is connected to the lower portion of the casing pipe four-way joint. The packing sealing sleeve is arranged in the oil pipe four-way joint and used for being communicated with the mandrel type casing pipe hanger assembly and the mandrel type oil pipe hanger assembly, and the sealing effect of the oil pipe four-way joint is further enhanced.

The application provides a sucker rod connecting structure and a sucker rod string, and relates to the technical field of oil exploitation. The sucker rod connecting structure comprises: a first joint, which comprises a connecting head and at least two claw springs, the connecting head is used for connecting one end of a sucker rod, the at least two claw springs are arranged at one end of the connecting head in the axial direction and are arranged at intervals in the circumferential direction, thereby forming a contraction space coaxial with the connecting head, and the end of each claw spring away from the connecting head is provided with a locking part respectively away from one side of the contraction space; and a second joint, which comprises a connecting body and a wedge shaft, the connecting body is an axial through structure, a first end of the connecting body is used for connecting the other end of the sucker rod and is used for being connected with the first joint of another sucker rod, an inner wall of the connecting body and close to a second end are provided with a locking groove in the circumferential direction, and the wedge shaft is arranged in the connecting body and can be adjusted in the axial position in the connecting body.

The application relates to an auxiliary installation device for a sucker rod centralizer and an installation method, and relates to the technical field of auxiliary installation devices for centralizers. The auxiliary installation device comprises a first centralizer and a second centralizer, the left end of the first centralizer is provided with a first auxiliary mechanism, the right end of the second centralizer is provided with a second auxiliary mechanism, the first auxiliary mechanism comprises two first installation rings arranged oppositely, and the second auxiliary mechanism comprises two second installation rings arranged oppositely. The centralizing and limiting mechanism can realize accurate centering and synchronous stable limiting when the first centralizer and the second centralizer are installed one by one, and the assembling operation of a single centralizer has outstanding effects, and the problems of positioning deviation, uneven stress and eccentric misplacement during single manual installation can be solved.

The invention discloses a flexible transmission beam-pumping unit, relates to the technical field of oil exploitation equipment, and provides the following scheme that the flexible transmission beam-pumping unit comprises a base fixing piece, a support fixed to the top of the base fixing piece, a walking beam rotationally connected with the top of the support, and a horse head fixed to one end of the walking beam, and further comprises a flexible transmission mechanism and a flexible transmission mechanism, the flexible power output device is used for flexible power output of the beam-pumping unit so as to drive a walking beam to swing repeatedly with the top of a support as the circle center. The distance adjusting mechanism is arranged on the top of the base fixing piece. Impact is absorbed through belt flexible transmission, vibration is buffered, part abrasion and sucker rod breakage risks are reduced, the service life of equipment is prolonged, the operation stability is improved, meanwhile, the belt tightness can be conveniently and accurately adjusted through the distance adjusting mechanism, different motors can be adapted, universality is high, and due to the double-locking and balance block safety design, the service life is prolonged. And the device is high in reliability, simple in structure and convenient to maintain, and the use cost is reduced.

The invention discloses a structure optimization and strength improvement method for round steel for a sucker rod, and belongs to the technical field of steel for oil exploitation. According to the method, the chemical components of the round steel are optimized, alloy elements and microalloy elements in a specific proportion are added, the round steel structure is optimized by combining a reasonable rolling process and a reasonable heat treatment process, and the strength, toughness, fatigue resistance and corrosion resistance of the round steel are remarkably improved. Experiments prove that all performance indexes of the round steel for the sucker rod prepared by the method are superior to those of traditional round steel, the use requirements of the sucker rod in a complex underground environment can be better met, the service life of the sucker rod is prolonged, and the round steel has high practical value and popularization prospects.

The invention provides a glass fiber impregnating compound which comprises effective components and water, and the solid content of the impregnating compound is 6.0-8.0%. The effective components comprise a silane coupling agent, a film-forming agent, a lubricant, a wetting agent, an antioxidant, a heat-resistant stabilizer, an anti-sulfide additive and a pH value regulator; the impregnating compound has good chemical compatibility and permeability, yarns have good bundling property and low hairiness, and the impregnating compound is especially suitable for a pultrusion process. The glass fiber yarn produced by adopting the impregnating compound is suitable for the fields of preparation of sucker rods, offshore oil production platform equipment brackets, structural brackets in various chemical corrosion environments and the like.

The invention discloses a machining method for a combined material type anti-corrosion sucker rod. The machining method comprises the following steps that steel for the sucker rod is machined, formed and forged; quenching treatment; carrying out tempering treatment; carrying out straightening treatment; shot blasting treatment; threads are machined on the surface of the blank of the sucker rod, and a sucker rod body is manufactured; and performing head preservative treatment. The combined material type anti-corrosion sucker rod comprises a sucker rod body and an anti-corrosion sleeve which is formed on the outer side of the sucker rod body in a hot pressing mode. According to the combined material type anti-corrosion sucker rod machining method and the sucker rod, anti-corrosion treatment of the head of the sucker rod body is achieved in the mode of high-temperature heating, compression molding and closing-in locking of the anti-corrosion material, so that the sucker rod body is free of anti-corrosion dead corners, and the anti-corrosion sleeve on the surface layer can effectively isolate well fluid from the sucker rod body to achieve the anti-corrosion effect; the internal sucker rod body can still ensure the mechanical properties of tensile strength, yield, extension and the like, and the production cost is reduced at the same time.