79 results about "Desander" patented technology

The anti-blocking natural gas extraction drainage sand remover comprises an outer box body of a square structure, a control panel is fixedly installed on the outer surface of the front side of the outer box body, a gas inlet pipe communicating with the outer box body is fixedly installed on the left side of the outer box body, and an exhaust pipe is fixedly installed on the right side of the upper surface of the outer box body; and a blow-off pipe communicated with the outer box body is fixedly mounted at the left end of the outer surface of the front side of the outer box body. According to the anti-blocking drainage sand remover for natural gas extraction, the novel structural design is adopted, the upper filter screen can extrude the storage air bag in the up-down moving process, and when the storage air bag is extruded, air in the storage air bag is discharged out of the back-flushing spray head through the connecting hose, so that back-flushing cleaning is conducted on the front filter screen; and the extrusion cam roller drives the reciprocating screw rod to rotate through the transmission belt when rotating, so that the reciprocating screw rod drives the back-flushing spray head to move back and forth, the back-flushing range of the back-flushing spray head is expanded, and the comprehensive cleaning effect is achieved.

The utility model discloses an integrated skid-mounted device of double vertical sand removers, which relates to the technical field of shale gas sand removal and comprises a skid-mounted base, a sand remover body and a process pipeline connected with the sand remover body, a gas inlet is arranged at the upper end of the sand remover, a gas outlet is arranged at the lower end of the sand remover, and a drain outlet is arranged at the bottom of the sand remover. The two vertical sand removers are parallelly suspended on the prying base, the sand removers are provided with maintenance platforms, and the maintenance platforms are provided with ladders and guardrails; the process pipeline comprises a gas inlet pipeline and a gas outlet pipeline; one end of the gas inlet pipeline is connected with a gas inlet of a high-layer desander; the other end of the gas inlet pipeline is connected with a low prying base in parallel; one end of the gas outlet pipeline is connected with a gas outlet of the high-layer desander and the other end of the gas outlet pipeline is connected with the low prying base in parallel; one end of the blow-off pipeline is connected with a blow-off port of the high-layer desander, and the other end of the blow-off pipeline is connected with the low prying base in parallel. The desander can be used for desanding efficiently, and is high in integration level, simple to mount and easy to carry.

The invention discloses a high-pressure well mouth two-stage tandem connection self-energy-charging water pumping desander and a working method. A first-stage water pumping pipe is arranged in an inner side cavity of a first-stage separator, a second-stage water pumping pipe is arranged at the bottom of an inner side cavity of a second-stage separator, an energy storage electric device is arranged in the second-stage separator, a self-energy-charging element is arranged in the second-stage separator, and the self-energy-charging element is arranged in the second-stage separator. A water suction pump body is arranged at the end part of the first-stage water suction pipe or the second-stage water suction pipe; the energy storage electric device comprises a motor and an energy storage device, and an energy converter is arranged in the self-charging element; and a cleaning triggering mechanism is arranged in the first-stage water pumping pipe. By arranging the internal water pumping mechanism, internal accumulated water is automatically discharged, the adopted drainage pipe does not need to be communicated with the outside of the sand remover, continuous work of the sand remover is guaranteed, energy is generated by means of gas power of natural gas, water is pumped, and the accumulated water is pumped and discharged.

The utility model relates to a skid-mounted gas well mouth desanding device which comprises a rotational flow gravity desander, a gas well mouth desanding device, a gas well mouth desanding device, a gas well mouth desanding device, a gas well mouth desanding device, a gas well mouth desanding device, a gas well mouth desanding device and a gas well mouth desanding device, the multiple filtering type sand removers are arranged in parallel, inlets of the multiple filtering type sand removers are all connected with an outlet of the rotational flow gravity sand remover, and outlets of the filtering type sand removers are used for discharging filtered natural gas; and each filter type sand remover is provided with a drain outlet and a backwashing opening. The throttling valve and the safety shut-off valve can ensure that a gas mixture from a gas well flows into the rotational flow gravity desander after meeting the pressure condition; the cyclone gravity desander is used for carrying out gas-liquid-solid separation on the entered gas mixture; the filter type desander is used for further separating the gas mixture, and the filtered natural gas is discharged from an outlet of the filter type desander.

This invention discloses an air-lift cyclone sand separator, comprising a sedimentation tank and an air-lift device. The sedimentation tank has a sand-collecting hopper at its lower end, and a hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed to the lower end of the hollow shaft at the upper opening of the sand-collecting hopper. A driving device is fixed to the upper end of the sedimentation tank and connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed within and communicates with the sand-collecting hopper. The air-lift pipe passes through the hollow shaft and communicates with the air-lift tank. The air-purge pipe passes through the hollow shaft and communicates with the sand-collecting hopper. The sand-discharge pipe passes through the hollow shaft and communicates with the air-lift tank. The paddle accelerates the rotation speed of the water flow in the sedimentation tank, allowing the sand to settle better. The settled sand is concentrated in the sand-discharge hopper. The air-lift pipe drives the water flow through the air-lift tank and into the sand-discharge pipe. The air-purge pipe disperses the sand in the sand-collecting hopper, allowing the dispersed sand to enter the sand-discharge pipe with the water flow, resulting in good sand removal efficiency.

The invention belongs to the technical field of gas production and sand removal, and provides a sand removal and plug removal device for a gas production well, which comprises a control pup joint, a power pup joint and a sand removal shovel assembly which are sequentially connected from top to bottom, the control short section comprises an upper pipe body, the top of the upper pipe body communicates with the upper pipe column, a plurality of gas holes are formed in the side wall of the upper pipe body, a flow channel switching assembly and a control ball are arranged in the upper pipe body, and when the control ball controls the flow channel switching assembly to be in a gas production state, natural gas enters the upper pipe column through the gas holes and the flow channel switching assembly. When the control ball controls the flow channel switching assembly to be in a desanding state, fluid for desanding enters the power short section through the upper pipe column and the flow channel switching assembly; the power short section comprises a lower pipe body, and a fluid power assembly is arranged in the lower pipe body. The desanding shovel assembly is in transmission connection with the bottom of the fluid power assembly, and a jet flow assembly is further arranged in the desanding shovel assembly. The desander can be used for a long time after one-time well descending, and sand can be quickly and efficiently removed without repeatedly lifting and descending a tubular column.

The utility model discloses a desander capable of automatically discharging sand, which comprises a desander and a sand discharging pipe, the side of the desander is communicated with a feeding pipe, the top of the desander is communicated with a water outlet pipe, the other side of the water outlet pipe is communicated with a tank body, the other side of the tank body is provided with a water discharging pipe, and the inside of the tank body is rotatably connected with a rotating rod through a bearing. A triangular stress plate and a support are fixedly arranged on the outer side of the rotating rod, a cleaning plate is installed on the other side of the support, a filtering plate is arranged in the tank body, and a first rotating shaft is fixedly connected to the lower portion of the rotating rod. By the adoption of the technical scheme, the sand remover capable of automatically discharging sand is manufactured, through the rotating rod, the filter plate, the triangular stress plate, the support and the cleaning plate, on one hand, water flow obtained after sand discharging can be filtered again, on the other hand, the cleaning plate can be driven to rotate through the scouring force of water, the filter plate is cleaned, the filter plate is prevented from being blocked, and the service life of the filter plate is prolonged. The water flow filtering effect is improved.

The utility model relates to the technical field of defoaming of sand removers, in particular to a defoaming device of a long-fiber light sand remover, which comprises a slag removal pipe body, a plurality of slag falling ports are formed in the lower pipe wall of the slag removal pipe body in a penetrating manner, slag falling caps are mounted on the lower surfaces of the slag falling ports, and a plurality of feeding ports are formed in the outer surface of the upper pipe wall of the slag removal pipe body. Light slag removers are mounted on the upper surfaces of the feeding ports, a first mounting buckle is arranged at one end of the slag removal pipe body, a second mounting buckle is arranged at the other end of the slag removal pipe body, and the first mounting buckle and the second mounting buckle are clamped and matched with each other. According to the utility model, the plurality of slag falling openings which are formed in the lower pipe wall of the slag removal pipe body in a penetrating manner are matched with the slag falling cover cap, so that the residual impurity foams gathered in the slag removal pipe body can be regularly cleaned at all positions, and the impurity foams cannot be accumulated more and more along with the accumulation of starting time, and can be effectively discharged and overflowed out of the slag removal pipe body; and the maintenance and cleaning difficulty of the slag removal pipe body equipment is reduced.

The utility model belongs to the technical field of natural gas production equipment, and provides a separation and sand removal combined skid for a natural gas platform, which comprises a main pipeline, a sand removal device and a sand removal device, the separation pipeline comprises a sand remover and a gas-liquid separator; the blow-down pipe is connected with the main pipeline; the first adjusting pipeline is connected with the sand remover and is used for conveying the separated solid-phase particles; the second adjusting pipeline is connected with the gas-liquid separator; and the blow-off pipe is respectively connected with the first adjusting pipeline and the second adjusting pipeline. According to the device, the blow-down pipe, the main pipeline, the separation pipeline, the adjusting pipeline and the blow-off pipe are arranged, in the working process, raw material gas is conveyed into the separation pipeline through the main pipeline, then solid-phase particles and waste liquid in the raw material gas are separated through the separation pipeline, and the solid-phase particles and the waste liquid are discharged through the adjusting pipeline and the blow-off pipe; the quality of natural gas is improved, the production cost is reduced, in addition, redundant gas can be exhausted by using the blow-down pipe when the pressure in the pipeline is too large, and the safety is improved.

The invention discloses a rotary filtration sand remover, and relates to the technical field of rotary filtration sand removal. The device comprises a base and a filtering part, wherein the filtering part is mounted at the top of the base; the power part is arranged on the base; the filtering part comprises a mounting assembly; the mounting assembly is mounted at the top of the base; the filter assembly is mounted on the mounting assembly; and the mounting assembly comprises a desanding cylinder fixedly connected to the top of the base, a mounting block is arranged at the top of the desanding cylinder, a Jaenn mounting screw is arranged at the top of the mounting block, the inner wall of the mounting block is in threaded connection with a cylindrical convex block, and a pressure part is mounted on the cylindrical convex block. According to the rotary filtering sand remover, by arranging the filtering part, the problems that in the using process of an existing rotary filtering sand remover, sand and stones with different sizes are difficult to separate, so that the sand discharging speed is reduced, key screen components are inconvenient to replace and maintain, and the sand removing efficiency is affected are solved.

A desander for a downhole assembly according to one disclosed non-limiting embodiment of the present disclosure includes a body that defines an axis; a support within the body; a sand downpipe within the body that extends from a sand downpipe inlet to a sand downpipe exit displaced from the sand downpipe inlet, the sand downpipe mounted to the support; and a solid-free intake to receive solid-free fluid from an upper body chamber.

The invention discloses key equipment for capacity expansion of an old platform of an offshore high-water-content oil field. Comprising a platform original first-stage three-phase separator, a platform original second-stage three-phase separator, a degassing desander, a platform natural gas treatment and recovery system, a platform oil-containing solid recovery system, a tubular vortex pre-dehydrator, a tubular vortex degreaser, a platform production water treatment and reinjection system, an exhaust pipe and a valve assembly. Degassing is completed through weak rotational flow and weight deposition formed by a tangential inlet, sand removal is completed through combination of secondary rotational flow formed by a flow stabilizing cylinder support and a flow adjusting component and an inclined plate, and it is guaranteed that follow-up tubular vortex water pre-diversion and a tubular degreaser work in the optimal working environment.

The invention relates to the technical field of oil and gas exploitation, and discloses a separately-pried ultrahigh-pressure cyclone desander which comprises a base, a connecting seat, a bearing plate, a cyclone desander assembly, a flow dividing manifold, a sand discharging manifold and a sand washing manifold. The round block is inserted into the center hole to trigger the linkage assembly, the sliding seat is driven to drive the abutting rod to symmetrically clamp and rectify the bearing plates, and guiding and positioning of a second chamfer at the bottom end of the round block and a first chamfer at the top end of the center hole are matched, so that the bearing plates can be separated from the sand discharging manifold, and the sand discharging manifold and the sand washing manifold are separated from the bearing plates. The problem of bearing plate butt joint axis dislocation caused by lifting rope deformation, gravity center shift and wind load interference in traditional lifting is solved, the sealing requirement of ultrahigh pressure medium conveying is met, the problem of butt joint difficulty caused by axis deviation is solved, meanwhile, the bearing plate does not need to be manually pushed and adjusted, and potential safety hazards of field operation are reduced.

A downhole solids separator having: a plurality of solids separation modules, a production tube disposed therein, one or more limited entry ports in the production tube, placed in each of the modules, an intake port in the lower half of each module opening into a wellbore annulus, the intake port below the limited entry port of the module, a closed chamber for collecting solids, isolated from the well bore, the closed chamber below modules, a solids conveying conduit from at least one module, opening into the closed chamber, an opening restricted to less than the size of the production tube in the conduit near the bottom of the module, an opening in the production tube in the closed chamber, where the production tube opening and conduit opening are configured to effect a drop fluid velocity into production tube to a level insufficient to carry solids into the production tube.

The utility model relates to the technical field of desanding equipment, in particular to high-pressure desander complete equipment which comprises a structural tank, a liquid storage tank is fixedly mounted on the inner side of the structural tank, and a desanding assembly and a filtering assembly are arranged on the side wall of the liquid storage tank; the desanding assembly comprises an inclined cylinder, the inclined cylinder is fixedly mounted on the side wall of the liquid storage tank, a mounting disc is arranged at the upper end of the inclined cylinder, a plurality of connecting rods are fixedly connected between the mounting disc and the outer wall of the inclined cylinder, and a driving motor is fixedly mounted on the upper side of the mounting disc; the output end of the driving motor rotationally penetrates to the lower side of the mounting disc, a rotating shaft is fixedly mounted at the output end of the driving motor, a spiral conveying auger is fixedly mounted on the outer wall of the rotating shaft, and the spiral conveying auger is located on the inner side of the inclined cylinder. According to the utility model, the sand removing assembly and the filtering assembly are arranged in the liquid storage tank, so that the filter screen is convenient and rapid to replace and not easy to block, and the silt discharging process is simple and efficient, so that the sand removing efficiency of the device is greatly improved, and the practicability is enhanced.

The present application belongs to the technical field of geothermal utilization, and discloses a sandstone heat storage geothermal well heat extraction without water extraction high-efficiency utilization system and a construction method of the system. The main technical features are as follows: the system comprises a geothermal well, a water outlet pipe, a heat exchanger and a water return pipe, a desander and a circulating pump are arranged on the water outlet pipe, a first water stop plate is arranged on the water outlet pipe below each non-bottom heat storage aquifer, and a second water stop plate is arranged on the water outlet pipe at an upper position of the middle part of the bottom heat storage aquifer. During the descending process of the recharge water, part of the recharge water flows into the corresponding heat storage aquifer when passing through each non-bottom heat storage aquifer, and the other part of the recharge water flows downward along the gap between the elastic plate and the inner wall of the well pipe. The water with a higher temperature in the bottom heat storage aquifer is supplemented into the well pipe under the pressure of the bottom heat storage aquifer. The geothermal water extracted from the whole water outlet pipe has a higher temperature and a higher heat efficiency, and the underground water is not polluted.

The invention provides a self-pumping two-stage tandem desander, which comprises a first-stage desanding device, a second-stage desanding device, a third-stage desanding device, a third-stage desanding device, a fourth-stage desanding device, a fourth-stage desanding device and a fourth-stage desanding device, the second-stage desanding equipment comprises a second-stage separator, the second-stage separator is used for being connected with the air outlet pipe, and the second-stage separator is communicated with the first-stage separator through a connecting pipeline; the self-pumping equipment comprises a first-stage pumping device, a pumping connecting pipe and a second-stage pumping device which are connected in sequence, the first-stage pumping device is arranged in the first-stage separator, the second-stage pumping device is arranged in the second-stage separator, and the self-pumping equipment is used for pumping out accumulated water in the first-stage separator and the second-stage separator. The sand remover solves the problem that in the prior art, accumulated water in the sand remover is difficult to remove.

The utility model discloses a novel multi-pipeline desander with a convenient cleaning function, and particularly relates to the field of desanders, which comprises a filter box, a liquid inlet pipe is arranged at the top of the filter box, a liquid discharge pipe is arranged at the bottom of the filter box, a main filter plate is arranged in the filter box, and a water inlet pipe is arranged at the bottom of the main filter plate. A plurality of feeding mechanisms are arranged at one end of the main filter plate, each feeding mechanism comprises a support, transmission rollers are installed at the two ends of the support, a conveying belt is arranged between the two transmission rollers, a plurality of push plates are fixed to the outer surface of the conveying belt, a driving motor is fixed to one side of the support, and the push plates are fixed to the other side of the support. Through the arrangement of the filter box and the feeding mechanism, liquid enters the filter box and is filtered by the main filter plate in the filter box, and impurities move to the feeding mechanism along the cambered surface of the main filter plate, so that the impurities are sent out of the filter box through the feeding mechanism, and the problem that the filter box is blocked is avoided; therefore, the whole desander can continuously filter for a long time.

A spiral sand removing machine capable of removing harmful solid phases in drilling fluid is characterized in that a feeding box is installed on a base, an overflow pipe and a stirrer motor are installed on the upper portion of the feeding box, and a feeding pipe and a sand discharging pipe are installed on the lower portion of the feeding box and connected with the spiral sand removing machine. The spiral sand removing machine is structurally characterized in that a spring supporting vibration frame is mounted on a base; a central shaft is mounted on a vibrating frame as a feeding pipe, bearing seats and eccentric wheels are mounted at two ends of the central shaft, a spiral screen pipe is mounted in the middle of the central shaft, and a driving motor is mounted below the eccentric wheels to drive the eccentric wheels, the central shaft and the spiral screen pipe to rotate to generate centrifugal force and vibrating force to throw drilling fluid out of a screen to flow into a circulating tank; and harmful solid phases and drilling cuttings are discharged out of the spiral screen pipe and are discharged into the sand setting tank. The technical requirement of purifying the drilling fluid is met.

The utility model relates to the technical field of energy exploitation, and discloses a desander for geothermal well drilling, which comprises a charging barrel, a sealing cover is arranged on the upper surface of the charging barrel, a feeding pipe is arranged in the middle of the upper surface of the sealing cover, and a throttling component is arranged on the lower surface of the charging barrel. The movable block can be driven to move in the auxiliary groove through the electric push rod, when the movable block moves, the movable block can drive the flow baffle to move together, the exposed area of the conical discharge port can be adjusted through movement of the flow baffle, underground hot water can flow out through the conical discharge port at the moment, and the larger the exposed area of the conical discharge port is, the larger the discharge flow is. According to the underground hot water filtering device, personnel can adjust the flow and the flow speed of underground hot water in time according to actual working requirements, so that solid particles in the hot water are more effectively intercepted, filtering holes of the second-stage filtering net are smaller, the solid particles in geothermal fluid filtered by the first-stage filtering net can be secondarily screened, and the filtering effect on the solid particles is ensured.

The utility model discloses a cyclone desander for natural gas exploitation in the technical field of natural gas desanders, which comprises a desanding cylinder, a mounting plate is arranged in the middle of the inside of the desanding cylinder, a mounting hole is arranged in the middle of the mounting plate, a mounting groove is arranged at the top of the mounting hole, an inner cylinder is arranged at the bottom of the mounting plate, and an outer cylinder is arranged at the bottom of the inner cylinder. A filter element fixing frame is arranged in the mounting groove, a filter element is arranged at the bottom of the filter element fixing frame, a fixing block is arranged on the upper portion in the sand removing cylinder, a sliding groove and a sliding groove positioning opening are formed in the fixing block, a positioning rod is arranged in the positioning opening, a pressing plate is arranged at the bottom of the positioning rod, and a threaded hole is formed in the middle of the positioning rod. A top cover is arranged at the top of the desanding cylinder, a through hole is formed in the middle of the top cover, the positioning rod loosens fixation of the top cover through rotation of the threaded rod, the filter element is rapidly detached and cleaned, meanwhile, the filter element is rapidly installed, and the desander is kept to keep a good desanding effect all the time.

A desander assembly retrievably positionable in a tubing string including a fishing neck, a bypass tool, a stop assembly configured to retrievably mate with a portion of the tubing string, an outer tubular member, and an inner tubular member. The outer tubular member has at least one aperture extending. The inner tubular member is positioned in the outer tubular member to form an annulus and so a bore of the inner tubular member is in fluid communication with the bypass tool. The inner tubular member has at least one spiral protrusion extending outwardly from the sidewall to cooperate with an interior side of the outer tubular member to form a spiral channel. The bore of the inner tubular member receives reservoir fluid that passes into the annulus formed between the inner tubular member and the outer tubular member via the apertures of the outer tubular member.

The present invention discloses an adjustable drilling fluid desilter and cleaner, comprising: an adjustable cyclone, a cyclone inlet regulating valve, a cyclone overflow regulating valve, a cleaner inlet pipe, a cleaner outlet pipe, a desander and desilter support, and a cleaning vibrating screen. Compared to the prior art, the cyclone's inlet regulating valve and overflow regulating valve can adjust the inlet and outlet volumes. The adjustable cyclone's overflow pipe has an adjustable insertion depth, and the underflow port is adjustable in size and is located on and tangential to the sidewall of the cyclone body. This reduces the amount of fine rock debris in the underflow, adapts to the separation of drilling fluids of varying displacement, density, and viscosity from rock debris, and increases the applicability of the drilling fluid desilter and cleaner. The adjustable drilling fluid desilter and cleaner disclosed herein can adapt to drilling fluids of varying displacement, density, and viscosity in different work areas or at different drilling stages by adjusting the inlet regulating valve, overflow regulating valve, overflow pipe insertion depth, and underflow port size individually or in combination.

The present invention relates to a downhole carbon dioxide transcritical boosting device and a working method thereof, which belong to the field of unconventional oil and gas resource development. The device comprises a carbon dioxide tanker, a mud pump, a cyclone desander, a double-wall drill pipe, a casing, a screw motor, a screw joint, a power shaft, a first-stage boosting unit, a first-stage boosting piston, a second-stage boosting unit, a second-stage boosting piston, a mixing chamber, a pump outlet chamber, a relief valve, a packer pin shaft, a track groove and a working method thereof. The downhole boosting system is driven by circulating drilling fluid as a power medium, and the CO2 is gradually pressurized and then injected into the formation, thereby overcoming the conventional CO2 formation injection technology, which requires high CO2 corrosion resistance for surface boosting equipment, well pipelines, etc. By utilizing the downhole boosting technology proposed by the present invention, conventional equipment in the oil field can be used for surface devices and double-wall drill pipes in the well, and only the downhole boosting system is required to have CO2 corrosion resistance, which can greatly save economic costs.

The utility model discloses a sand remover pry for shale gas. The sand remover pry comprises a pry seat, a sand remover, an inlet pipe section and an outlet pipe section, the prying seat is mounted on the ground; the desander is a horizontal desander and comprises a barrel, and the bottom of the barrel is mounted on a prying seat through a saddle; a filter element is assembled in the cylinder body, the filter element and the cylinder body are coaxially arranged, and the axes of the filter element and the cylinder body are horizontal; the inlet end of the cylinder body is provided with a tightening end socket, the tightening end socket is connected with the inlet pipe section, and a flow channel connected with the interior of the inlet pipe section and the interior of the filter element is arranged in the tightening end socket; and the inlet pipe section is communicated with an external inlet pipeline through an inlet flange. The prying seat with the horizontal sand remover has the beneficial effects that the prying seat with the horizontal sand remover is compact and flexible in structure, equipment is convenient to install and transport, and the stability and the mobility of the equipment are improved; the filter element is matched in the barrel of the desander, so that the filtering area is increased, and the desanding effect is improved.

The utility model discloses a cyclone desander device, and relates to the technical field of desanders. The cyclone sand setting device comprises a frame body, a cyclone sand setting chamber is connected to the top of the frame body in an inserted mode, an upper cover body is fixedly installed on the top face of the cyclone sand setting chamber through bolts, a sand discharging assembly used for discharging mud and sand is arranged at the sand discharging end of the cyclone sand setting chamber, and a rotating mechanism is fixedly installed on the inner wall of the upper cover body. The rotational flow generating pipe assembly is driven by the rotating mechanism to rotate, so that the rotational flow speed of water in the rotational flow sand setting chamber is increased, mud and sand vertically move in the rotational flow sand setting chamber under the action of gravity and centrifugal force through rotational flow of water along the inner wall of the upper cover body, and filtered water is discharged through the water discharging pipe; and the sand is discharged through the sand discharging assembly, and the sand removing efficiency of the sand is improved under the action of the rotating force of the rotational flow generating pipe assembly and the pressure of water sprayed out of the rotational flow generating pipe assembly.

The utility model discloses a cyclone desander which comprises a desander body, the desander body comprises a straight cylinder, a conical cylinder, a sand discharge pipe and a sand storage barrel, a water inlet pipe and a water outlet pipe are arranged on the straight cylinder, a filter screen is arranged at the bottom of the water outlet pipe, a supporting rod and a supporting plate are arranged on the sand discharge pipe, and a waterproof motor is arranged at the bottom of the supporting plate. Spiral blades are arranged on a motor shaft of the waterproof motor, a sand removing opening is formed in the bottom of the sand storage barrel, a rotating shaft is arranged in the sand storage barrel, rotating plates are arranged on the rotating shaft, a sand storage cavity is formed between every two adjacent rotating plates and the rotating shaft, a hand wheel is arranged at one end of the rotating shaft, and a limiting device is arranged on the rotating shaft; a waterproof click is arranged on a sand discharging pipe to drive a spiral blade to rotate, the sand discharging effect is promoted, gravel is prevented from blocking the sand discharging pipe, the positions of a rotating shaft and a rotating plate are fixed through a limiting device, sand is temporarily stored through a sand storage cavity, a large amount of sewage can be prevented from being discharged along with gravel, sand discharging operation can be conducted without shutdown operation, and the sand discharging efficiency is improved. And the operation efficiency is improved.

The application relates to the technical field of cyclone desanders, and discloses a high-efficiency anti-blocking cyclone desander and a use method thereof, which comprises a desander main cylinder, a water inlet pipe is arranged in the tangential direction of the periphery of the desander main cylinder, a connecting flange is arranged at the end of the water inlet pipe, a conical body is arranged at the bottom of the desander main cylinder, a sand storage hopper is arranged at the lower end of the conical body in communication, and an electric unloading valve is arranged at the bottom of the sand storage hopper. The high-efficiency anti-blocking cyclone desander and the use method thereof can perform high-pressure flushing on the sand particles accumulated in the sand storage hopper from the liquid spray cover downwards, first, the sand particles can be impacted by the water pressure impact force, so that the desander is prevented from being blocked at the hopper mouth, second, the adhering matters on the hopper wall can be washed away when the sand particles are flushed, so that the hopper wall is cleaned, and manual cleaning is not needed, and third, the water used for flushing is the residual liquid in the cylinder, so that a water source needs not to be separately provided, and the water is reasonably and effectively used on site.

A desander assembly retrievably positionable in a tubing string including a fishing neck, a bypass tool, a stop assembly configured to retrievably mate with a portion of the tubing string, an outer tubular member, and an inner tubular member. The outer tubular member has at least one aperture extending. The inner tubular member is positioned in the outer tubular member to form an annulus and so a bore of the inner tubular member is in fluid communication with the bypass tool. The inner tubular member has at least one spiral protrusion extending outwardly from the sidewall to cooperate with an interior side of the outer tubular member to form a spiral channel. The bore of the inner tubular member receives reservoir fluid that passes into the annulus formed between the inner tubular member and the outer tubular member via the apertures of the outer tubular member.

The invention discloses a novel double-barrel desander and a transportation pry, and relates to the technical field of petroleum and natural gas exploitation, and the novel double-barrel desander comprises two parallel desanding barrels, a sand barrel upper cover arranged at the upper end, a sand barrel connecting valve block connected with the front end, a cleaning outlet stop valve connected with the rear end, a sand discharging switching valve body arranged at the lower end, manual valves arranged on the two sides, and a two-inch union outlet connected with the sand discharging end. A cleaning liquid inlet pipeline is provided with a first hand valve, a second hand valve, a third hand valve, a fourth hand valve and a desanding channel liquid inlet pipe, a pressure detection instrument is arranged at the upper end of the cleaning liquid inlet pipeline, a desanding channel connecting pipe is provided with a tenth hand valve and an eleventh hand valve which are connected with a sand cylinder connecting valve block, and a sand discharging confluence block is connected with a ninth hand valve and a two-inch union inlet. A confluence transition pipe is provided with a five-eight manual valve to be connected with a desanding cylinder and an open flow main channel pipe, a main channel confluence valve body is connected with a three-inch union outlet, a pressure transmitter and the manual valve, an instrument control box is arranged at the upper end of the open flow main channel pipe, and the transportation pry comprises a frame type body, an operation platform, a crawling ladder and a top end guide hanging column, so that integrated transportation and operation are achieved.