27 results about "Desander" patented technology

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.

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.

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.

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 utility model discloses an oil field fracturing waste liquid desanding device, which relates to the technical field of oil field exploitation and is characterized in that a first cyclone desander is provided with a first liquid inlet, a first sand outlet and a first liquid outlet; the second cyclone desander is provided with a second liquid inlet, a second sand outlet and a second liquid outlet; the separating, filtering and settling tank is provided with a settling tank liquid inlet pipe, a settling tank first sand outlet, a settling tank second sand outlet and a settling tank liquid outlet pipe; the filter screen type filter is provided with a filter liquid inlet, a filter sand outlet and a filter liquid outlet; the water purification tank is provided with a water purification tank liquid inlet; and the sand-water separation tank is provided with a separation tank sand inlet, a separation tank sand outlet and a separation tank liquid outlet. By arranging the sand-water separation tank, accumulated sand discharged from each sand outlet is dehydrated, and separated clear water flows back to the first liquid inlet for circulation, so that the sand removal recovery rate and the clear water utilization rate of the oilfield fracturing waste liquid are improved.

The invention discloses an oil field produced liquid desanding device which comprises an inertia desander composed of an inlet pipeline, a separation pipeline and a plurality of outlet pipelines, the other end of each outlet pipeline is fixedly connected with a cyclone desander, and the bottom end of the inertia desander and the bottom end of the cyclone desander are fixedly connected with a sand storage chamber. And the top end of the cyclone desander is fixedly connected with a gas-liquid collecting chamber. According to the desanding system, an inlet pipeline is communicated with a feeding pipeline, a flow detector, a feeding valve and a feeding pressure gauge are sequentially connected from the inlet pipeline to an inlet of the feeding pipeline, a gas-liquid collecting chamber is communicated with a discharging pipeline, and a discharging valve and a discharging pressure gauge are sequentially connected from a gas-liquid outlet to an outlet of the discharging pipeline. And the sand storage chamber is respectively connected with a flushing valve and a sand discharging valve. According to the desanding device and system for the oilfield produced liquid, the problems that in the prior art, the desanding performance cannot be adjusted according to the incoming material flow, and a cyclone desander is seriously abraded and short in service life due to large-particle-size fracturing sand are solved.

The application provides a kind of ultra-deep diaphragm wall ultra-long slot section trenching construction system and trenching construction method thereof, including mud recycling system=mud recycling system includes desander, desander is communicated with hydraulic milling internal booster pump, the liquid outlet of desander is communicated with multiple desanders respectively, the slag outlet of desander and desander is communicated with purification station storage tank, the liquid outlet of desander is communicated with purification station storage tank, purification station storage tank is recycled by centrifugal filter inside, and purification station storage tank is communicated with trenching by first pump body.The reasonable configuration and application of underground diaphragm wall mud can form a good mud skin, effectively ensure the stability of diaphragm wall slot wall, remove the sediment, soil debris and other sundries in the hole, speed up the trenching efficiency, and ensure the smooth trenching of machinery.At the same time, in order to improve the efficiency of mud use and reduce the amount of waste mud disposal, mud is generally purified and recycled, and the recycling efficiency is also the key to control.

The invention relates to the technical field of mine water treatment, and discloses a mine water underground efficient coal slime settling and clear water recycling integrated system which comprises a mine water sump. The mine water sump is connected with the water inlet end of the cyclone desander through a pipeline, and the pipeline is connected with a feeding pump and a PAC feeder; a concentration tank; the integrated underground mine water treatment device is composed of a water tank, an electrochemical treatment assembly, a demulsification reactor and a water purification assembly, a partition plate is fixedly connected into the water tank, and the water tank is divided into a rough filtration chamber and a fine filtration chamber by the partition plate; the demulsification reactor is composed of a plurality of filter units, and the filter units are coupled with electrochemistry and membrane filtration design. The technical scheme provided by the invention has the advantages of efficient and rapid demulsification of emulsified oil, fundamental and long-acting inhibition of membrane pollution, and optimization of system operation cost and environmental friendliness.

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 application relates to the technical field of sand removers, and discloses a rotary filter sand remover which comprises a base, a tank body is installed on the upper surface of the base, a cover plate is installed in the tank body through bolts, two air inlet pipes are installed in the tank body, air inlet flanges are installed on the outer walls of the air inlet pipes, connecting pipes are installed in the air inlet flanges, a gas discharge flange is installed in the tank body through a pipeline, a filter cylinder is installed on the lower surface of the cover plate, a sand discharge pipe one is installed in the filter cylinder, helical blades are installed on the outer wall of the filter cylinder, a collecting hopper is arranged on the lower side of the filter cylinder, and a cleaning mechanism is arranged in the filter cylinder. The large sand and stones are collected by the collecting hopper, the small sand and stones are collected at the bottom of the filter cylinder, are discharged separately, the overall sand removal efficiency and the flow capacity are improved, the cleaning mechanism is operated by the airflow thrust in the tank body, the adhered sand and stones are automatically removed, the filter cylinder is prevented from being blocked, and the airflow is smooth and the treatment flow is stable.

The sand storage tank comprises an upper tank barrel, a lower tank barrel and a pressure pump, the bottom of the upper tank barrel is connected with the lower tank barrel through a bolt, the bottom of the lower tank barrel is connected with the pressure pump through a pipeline, an opening and closing valve is arranged at the joint of the lower tank barrel and the pipeline, and a supporting frame is arranged on the upper portion in the upper tank barrel. The upper part of the support frame is provided with a dispersion assembly with a conical-column-shaped structure, so that the unscrewed gravel and sundries are brought out of the water outlet again under the combined action of centripetal force, buoyancy and fluid drag force, slide out through the blocking action of the dispersion assembly and the circumferential dispersion of the dispersion assembly, and then slide out through the acceleration of the spiral dredging plate and are collected into the lower tank barrel; the problems that the falling speed is low and falling scattering is not concentrated are solved, and the technical effect that gravel and sundries can be collected into the lower tank barrel through rotational flow conveying of the spiral dredging plate is achieved.

The present application relates to the technical field of drilling mud purification, and discloses a sand remover for geothermal drilling, which comprises a sand removing tank, and further comprises an alternate sand removing unit, a sand discharging unit and a sand pushing unit; the alternate sand removing unit is arranged in the sand removing tank and is used for filtering sand particles in mud; the alternate sand removing unit comprises a separation component arranged in the sand removing tank and used for controlling the flow direction of mud; the separation component comprises a partition plate arranged on the inner wall of the bottom of the sand removing tank, an inclined plate arranged on the top of the partition plate and fixed to the side wall of the sand removing tank away from the partition plate, and an inverted U-shaped plate arranged on the inner wall of the bottom of the sand removing tank; the two filtering areas are alternately used to avoid the clogging of the filtering component, so that the filtering can be continuously and uninterruptedly performed, and the first filtering plate and the second filtering plate are mutually staggered to push the sand particles in the first filtering hole and the second filtering hole out.

The invention discloses a desander with a clamping type structure capable of quickly replacing a desanding cyclone, which comprises a movable mounting chamber I, a movable mounting chamber II, a sand setting chamber and an inserting frame, the movable mounting chamber I and the movable mounting chamber II are hermetically mounted through two sealing plates to form a cyclone chamber, the sand setting chamber is arranged at the bottom of the cyclone chamber, and the inserting frame is arranged at the bottom of the cyclone chamber. A sealing inserting cylinder is arranged on the inner wall of the sealing plate located at the bottom, a barrel-shaped inserting groove is formed in the inner wall of the bottom of the first movable installation chamber, the sealing inserting cylinder and the barrel-shaped inserting groove are installed in a sealing and inserting mode, and when the first movable installation chamber and the second movable installation chamber are installed in a butt joint mode, the sealing performance of connection between the first movable installation chamber and the second movable installation chamber is improved; the tensioning assembly is improved to rapidly sleeve and install the fixing column, it is guaranteed that the first movable installation chamber and the second movable installation chamber are fixedly installed, during disassembly, the sleeving assembly which is installed in a sleeving mode is released, the rotating shaft is rotated to enable the sleeving assembly to be lifted, and then the first movable installation chamber and the second movable installation chamber are disassembled and separated, so that maintenance or cleaning of the interior of the rotational flow chamber is achieved.

The utility model relates to the technical field of petroleum production, in particular to an inclined plate precipitation synergistic sand remover. According to the technical scheme, the lower portion of a machine body is connected with a discharging hopper through a collecting hopper, the bottom end of the machine body is supported and erected through a second support, a first support is installed in the machine body, an inclined plate is installed in the machine body through the first support, and a deflection mechanism is arranged on the inclined plate; the inclined plate deflects in the machine body through a deflection mechanism and a transmission mechanism, a filter box is erected above the inclined plate, one end of the filter box is connected with a liquid outlet pipe, the end, away from the filter box, of the liquid outlet pipe penetrates through the machine body, and a liquid inlet pipe is arranged at the position, located on the inclined plate, of the machine body. According to the utility model, the deflectable design of the inclined plate is matched with the transmission mechanism, so that automatic sand cleaning and flexible angle adjustment are realized; in combination with secondary filtration of the filter box, the desanding efficiency and the liquid cleanliness are remarkably improved, and various requirements of petroleum production are met.

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 utility model relates to the technical field of petroleum desanding, in particular to a backwashing cyclone desander which comprises a desander shell, a base plate and a stepping motor, the included angle between the inner wall of the lower portion of the desander shell and the vertical direction and the included angle between the inner wall of a discharging shell and the vertical direction are 15-20 degrees, and treated gravel is settled and accumulated in the area, at the top of a pressing table, of the discharging shell. An electric telescopic rod device drives a pressing table and an upper lantern ring to move upwards till a discharging gap is formed between a rubber ring fixedly arranged on the outer side of the pressing table and the inner wall of a discharging shell, a stepping motor is started to drive a shaft rod and a driving fluted disc to rotate, and a driven fluted disc, a connecting ring, the discharging shell, a hemispherical block and a ring are an integrated rotating sand discharging piece. The driving fluted disc and the driven fluted disc are meshed to drive the integrated rotary sand discharging piece to rotate, and due to the arrangement, the structural body can conveniently conduct anti-blocking stirring and discharging on gravel accumulated at the bottom of the backwashing cyclone desander, and the gravel discharging efficiency is improved.

This application relates to the field of mud pump technology, and more particularly to a nanocomposite mud circulation device for underground pipeline construction, comprising: a mud supply pipe, a mud pump, and a screen desander. The screen desander is used for mud filtration. During operation, the mud pump draws the mud to be filtered and injects it into the screen desander through the mud supply pipe. The screen mesh of the screen desander's filter element has a larger pore size than the soil particle size; therefore, during filtration, the nanocomposite particles penetrate the filter mesh, while the soil particles in the mud remain trapped inside the filter element due to their large size. The filtered mud is pumped out through the desander outlet and circulated to the horizontal directional drilling rig. The soil particles inside the rig are discharged through a soil discharge butterfly valve at the soil discharge outlet. The nanocomposite mud pump of this application has a compact layout and can achieve the filtration and circulation supply of nanocomposite mud in horizontal directional drilling projects with limited construction space.

The application relates to a sand removal cyclone and a sand remover and relates to the technical field of natural gas exploitation.The sand remover comprises a sand separation cylinder which is installed in the sand remover main body in the vertical direction and a middle pipe which is coaxially arranged in the sand separation cylinder, a gas inlet is arranged on the outer periphery of the upper portion of the sand separation cylinder; a connecting flange is fixedly arranged on the outer periphery of the upper end of the middle pipe, the outer edge of the connecting flange is detachably connected with the top surface of the sand separation cylinder, and helical blades which are spirally distributed are fixedly arranged on the outer periphery of the lower portion of the middle pipe; the sand-containing natural gas is injected into the sand separation cylinder through the gas inlet, the sand and the gas are separated after the sand-containing natural gas collides with the inner wall of the sand separation cylinder and is guided by the flow guide assembly, the sand particles are discharged from the lower opening between the sand separation cylinder and the middle pipe, the separated natural gas enters the middle pipe from the lower opening of the middle pipe and is discharged from the upper opening of the middle pipe; in the application, the sand-gas separation process of the sand-containing natural gas is limited in the sand separation cylinder, the high-pressure sand-containing natural gas is prevented from directly impacting the inner wall of the sand remover main body, and the erosion damage of the sand particles to the main body equipment is effectively reduced.

The invention belongs to the technical field of marine oil and gas well drilling environmental protection equipment, and particularly relates to a marine drilling rig drilling waste liquid membrane separation and purification device and a use method, the device adopts a container tray integrated design, and the device sequentially comprises a cyclone desander, a sedimentation oil removal pool, an ultrasonic demulsification tank, an electromagnetic adsorption flow channel, a filtering tank and a membrane separation unit. Wherein the ultrasonic demulsification tank realizes physical demulsification through an ultrasonic transducer and adsorbs floating oil in combination with a top oil absorption material layer; a plurality of rows of magnetic plates are arranged in the electromagnetic adsorption flow channel to remove magnetic particles; the filtering tank is provided with a high-pressure rotary backwashing system; the membrane separation unit is innovatively connected with a pulse generator in parallel, and an annular gas distributor is integrated on a membrane shell end cover, so that a pulse gas-water collaborative cleaning mechanism is formed. The method effectively solves the technical problems of complex components of the marine drilling waste liquid, fast membrane pollution and poor adaptability of the traditional process by virtue of a multi-stage synergistic pretreatment and core anti-pollution technology, and has the remarkable advantages of high treatment efficiency, long membrane service life and capability of adapting to marine working conditions.

The application discloses a shale gas collection control system and a shale gas separation method. The shale gas collection control system comprises a cyclone desander, a three-phase separator, a pilot float liquid discharge valve and a controller. The inlet of the cyclone desander is connected with the system material inlet. The exhaust port of the cyclone desander is connected with the air inlet of the three-phase separator, and the liquid outlet of the cyclone desander is connected with the liquid inlet of the three-phase separator. The exhaust port of the three-phase separator is connected with the system gas phase outlet, and the liquid outlet of the three-phase separator is connected with the liquid inlet of the pilot float liquid discharge valve. The three-phase separator has a sand discharge port and a sand suction port. The liquid outlet of the pilot float liquid discharge valve is connected with the system pollution discharge port. The controller is used for controlling the sand discharge port and the sand suction port to alternately perform sand discharge and sand suction. The sand discharge and the sand suction are alternately performed, the phenomenon of sand blockage caused by sand deposition in the sand discharge pipeline is avoided, the safety is good, the environmental pollution caused by gas overflow is reduced, the automation is high, the labor cost consumption can be reduced, and the production efficiency is improved.

The utility model discloses an anti-clogging type desander for well drilling, which comprises a primary filtering device, an anti-clogging conveying device, an intermediate filtering device and a final filtering box, the surface of the primary filtering device is fixedly provided with the anti-clogging conveying device, the surface of the primary filtering device is fixedly connected with the intermediate filtering device, and the final filtering box is fixedly connected with the intermediate filtering device. According to the anti-blocking type sand remover for well drilling, due to the fact that the primary filtering device, the intermediate filtering device and the final filtering box are arranged, liquid entering the sand remover is subjected to triple filtering and sand removal, sand and stones in the liquid can be effectively removed, the sand removal efficiency is improved, and the sand removal efficiency is improved. The anti-blocking conveying device is arranged to dredge and clean the primary filtering device and the intermediate filtering device to avoid blockage, and the cleaning motor rotates the rotating rod, the spiral blade and the cleaning brush, so that the cleaning brush continuously cleans the coarse filtering net and the intermediate filtering net.

The invention relates to the technical field of oil gas treatment, in particular to a wireless internet-of-things control method and system for a cyclone desander. Gravel can be generated in the oil and natural gas exploitation process, when high-pressure oil gas mixed with the gravel enters the cyclone desander, and the cyclone desander conducts desanding operation, the pressure of the oil gas fluid inlet and the pressure of the oil gas fluid outlet are monitored in real time in the whole process. And the opening degree of the electric throttle valve can be remotely controlled, so that the sand discharge port is controlled to discharge sand and release pressure. Meanwhile, a proper valve opening execution strategy can be selected according to the thickness condition of gravel in the cyclone desander, so that the actual working condition is accurately matched, and the execution strategy is corrected through the pressure difference. According to the application, the pressure relief and sand discharge operation of the cyclone desander is more automatic and intelligent.

This utility model discloses a three-phase metering system for oil, gas, and water in a sand-bearing single well, comprising a flow computer, a desander, a gas-liquid separator, a water cut measuring pipe, a fluid inlet pipe, a fluid outlet pipe, and a manifold. The fluid inlet pipe is connected to a separation metering pipe, a sampling measuring pipe, and a large-diameter measuring pipe. The end of the separation metering pipe furthest from the fluid inlet pipe is connected to the gas-liquid separator. A second switching valve is installed on the separation metering pipe. A first gas phase pipeline connected to the top of the gas-liquid separator is provided, and a second two-phase flow meter is installed on the first gas phase pipeline. A first liquid phase pipeline connected to the bottom of the gas-liquid separator is provided, and a first two-phase flow meter is installed on the first liquid phase pipeline. This utility model can accurately measure the flow rates of oil, gas, and water in sand-bearing crude oil.

A separator system and method may provide a four-way separator that may separate a material and remove a hazardous material. The hazardous material may include gas and sand that may be removed by the four-way separator. The separator system and method may further provide a main unit that may include three chambers or recirculation hoppers, an auger sand extractor, and a strap tank. The separator system and method may provide a faster rig-up time and may be exclusively driven by hydraulics.

The application relates to the technical field of mineral resource exploration and drilling, in particular to a drilling technology method and a matching system, which comprises the following steps: first, single-pipe hole forming and wall-securing section drilling, large-diameter single-pipe drilling tools are used to pass through the surface loose layer and are lowered into a surface casing for wall securing; second, rope coring and pipe-following section drilling, first-stage rope coring drilling tools are used to penetrate the loose sandstone stratum and are lowered into a PVC straight thread casing for pipe following and isolation of the upper loose sandstone; third, full-hole rope coring section drilling, second-stage rope coring drilling tools are used to combine with a PDC diamond drill bit and a tight anti-back-off drilling tool combination; mud solid control and circulation desanding, a three-stage separation of a vibrating screen, a desander and a desilter is used to control the solid phase content of drilling fluid. The matching system comprises a drilling tool combination module, a casing wall protection module, a hole bottom cutting module, an anti-falling connection module and a mud solid control and circulation system. The application has the effects of effectively solving the hole wall instability in the thick loose sandstone stratum and the high solid phase content of drilling fluid.