30 results about "Extraction of petroleum" patented technology

The invention belongs to the technical field of sand control during extraction of petroleum and natural gas and particularly relates to a fiber composite sand control material and a preparation method thereof. The fiber composite sand control material comprises a propping agent, a coating on the surface of the propping agent and fiber, wherein the coating comprises a resin and a water suppression material; the mass of the fiber is 1 to 5 percent that of the propping agent; the mass of the resin is 3 to 10 percent that of the propping agent; and the mass of the water suppression material is 5 to 15 percent that of the resin. On the basis of ensuring bonding capacity, the material has the advantages of increasing gas-phase permeability, decreasing water-phase permeability, reaching the same gas saturation condition, capability of extracting more gas and suppressing and reducing water yield. Due to the existence of the fiber, the bonding capacity of the resin is improved, so that the resin can still achieve a pulling effect after resin bonding fails, the intensity of a compound is ensured and good long-term sand control effect is achieved.

The present disclosure relates to a system and method of providing water management and utilization during the process of dewatering and retorting of oil shale. More specifically, the process described relates to co-producing potable and non-potable water, for various uses, during the extraction of petroleum from shale oil deposits. Generally, the process allows the production of multiple streams of waters or varying salinity and pressures at least one of which is of high enough pressure for reinsertion into geological formations or reservoirs, and another which may supply a potable water source. In one embodiment, the high pressure required for reinserting the non-potable water into geological formation or reservoirs may be utilized for producing the potable water supply. In another embodiment, the non-potable water supply may also be used for entraining and sequestering undesired emissions, such as CO₂.

The invention relates to a high efficiency torsion resistant drill rod joint with good sealing performance. The drill rod joint consists of an externally threaded part and an internally threaded part, wherein the internally threaded part contains an outer shoulder surface, a long and straight cylindrical bore, an internal thread, a conical bore, a cylindrical bore, a semicircular convex and an inner shoulder surface; and the externally threaded part contains a first outer shoulder surface, a stress-relief groove, a long and straight cylindrical bore, an external thread, a cylndrical surface and a second outer shoulder surface. The total torsional strength of the joint depends on the distance between the combination part of the shoulder surface and the long and straight cylindrical bore in the internally threaded part and the combination part of the cylndrical surface and the shoulder surface in the externally threaded part. After the internal thread and the external thread are meshed, the effect of reducing the maximum stress can be well realized. The drill rod joint has good connection strength and sealing performance and superior torsion resistance ability; the maximum stress and the stress distribution of the drill rod joint can be effectively improved; and the drill rod joint is particularly suitable for the extraction of petroleum and natural gas.

The invention relates to the technical field of petroleum extraction, and discloses a petroleum extraction device for petroleum residues. The device comprises a separation box; an oil outlet is formedin the middle of the lower surface of the separation box; a crushing box is arranged on the right side of the upper surface of the separation box; rotating wheels on the front and rear sides of the crushing box are connected with a crushing shaft; a crushing rod is arranged in the middle of the crushing shaft; a driving motor is arranged on the left side of the upper surface of the separation box; an output shaft of the driving motor is fixedly connected with the left end of a rotating shaft; a first bevel gear is arranged in the middle of the rotating shaft and engaged with a second bevel gear; the second bevel gear is fixedly connected with the upper end of a rotating rod; the middle of the rotating rod is in threaded connection with a lifting block; the left and right ends of the lifting block are slidably connected with second sliding rods; scrapers are arranged at the ends of the second sliding rods; and second springs are arranged between the scrapers and the lifting block. According to the petroleum extraction device suitable for petroleum residues, a separation barrel rotating at a high speed is arranged, so that the petroleum residues are subjected to the action of centrifugal force, and the petroleum residues are separated from petroleum.

The invention belongs to the technical field of oil exploitation equipment, and discloses an oil exploitation pump. The oil exploitation pump comprises a mining pump body and oil conveying pipelines, wherein the oil conveying pipelines are fixedly installed on the two sides of the exterior of the mining pump body, airtight cavities are formed in the connecting positions between the interior of the mining pump body and the interiors of the oil conveying pipelines, a movable rod is movably installed inside the mining pump body in a penetrating mode, a diaphragm plate is fixedly installed at the top end of the outer portion of the movable rod in a clamped mode, and a sealing ball is movably installed at the position, close to the corner position of the diaphragm plate, inside the oil conveying pipeline. According to the oil exploitation pump, a driving motor inside the mining pump body drives a driving plate to rotate, teeth on the outer wall of the driving plate sequentially mesh with tooth grooves in the two sides of the inner wall of a driven ring sleeve, the driven ring sleeve can be driven to horizontally reciprocate inside the mining pump body, and the diaphragm plate matches and intermittently extrudes the interiors of the airtight cavities, so that continuous extraction of petroleum at the liquid extraction opening by two channels inside the oil conveying pipeline is realized, and the petroleum extraction efficiency of the extraction pump body is favorably improved.

The invention relates to a backwashing well and multiple setting packer which is used for the field of extraction of petroleum and natural gas, and mainly solves the problems that an existing packer is poor in sealing ageing and does not have a backwashing function, and continuous and multiple setting cannot be achieved. The packer comprises an upper connector, a reverse circulation valve outer cylinder, a spring, a center pipe a, a piston, a rubber cylinder shaft, a rubber cylinder a, a rubber cylinder spacer ring, a rubber cylinder b, a rubber cylinder protection ring, a rubber cylinder limit sleeve, a sleeve a, a center pipe b, a sleeve b, a sealing ring a, a sealing ring b and a lower connector, the sealing ring a is mounted on the sleeve a, the sealing ring b is mounted on the sleevea and the center pipe b, the sleeve b is connected with the sleeve a in a threaded manner, and the lower connector is connected with the center pipe b in a threaded manner. The packer is simple in structure and complete in function and has a backwashing well function, multiple setting can be achieved, and failure or potential safety hazard of the packer caused by multiple setting cannot be generated.

The invention discloses a petroleum extraction device of residual oil and an extraction method thereof, and relates to the technical field of petroleum extraction of residual oil. The problems that the extraction speed of petroleum in residues is low, and the extraction effect is poor are solved. The petroleum extraction device for the residual oil comprises an extraction box body, and air blowers which are uniformly distributed are arranged on the outer wall of one side of the extraction box body; an air blowing pipe is arranged on the outer wall of one side of the air blower, and the extraction method of the petroleum extraction device for the residual oil comprises the following steps that petroleum residues and water are poured into the extraction box body according to the proportion of 1: 1. Water and petroleum residues are poured into the extraction box body, heavy residues in petroleum sink to the bottom of the extraction box body, the petroleum in the residues is removed and moves upwards due to the fact that the density of the petroleum is lower than that of water, an air blower is operated, and the upward moving speed of the petroleum in the residues is increased; the upper layer petroleum after layering is collected through the water decanter, and the water decanter can avoid collecting small impurities on the surface layer.

The invention discloses a distillation device for petroleum extraction and processing, which comprises a distillation device body and quantitative extraction equipment, wherein a storage box is fixedly mounted on the right side of the distillation device body, a positioning block is fixedly mounted on the right side of the front side of the distillation device body, a storage groove is formed in the top of the positioning block, round clamping grooves are formed in the left side and the right side of the inner wall of the storage groove, and an adjusting rod is used in the storage groove in a matched mode. According to the invention, the distillation device body, the storage box, the positioning block, the storage groove, the circular clamping grooves, the adjusting rod, a circular through hole, a positioning mechanism, a circular baffle block, a circular clamping block, an extrusion rod, a circular block, an extrusion spring, an adjusting mechanism, a positioning sleeve, a supporting block, a positioning hole, quantitative extraction equipment, a limiting groove, a limiting block, a circular matching hole, a lifting handle and an alarm are matched for use, the problem of poor quantification effect in the prior art is solved, and the distillation device for petroleum extraction and processing has the advantage of good quantification effect.

The invention relates to the technical field of petroleum refining, in particular to a petroleum extraction device for petroleum residues, which shortens the extraction time of petroleum in the petroleum residues and improves the practicability of the device. Comprising a filter box, a working cavity is formed in the filter box, multiple sets of supporting legs are arranged at the bottom end of the filter box, a cover plate is detachably arranged at an operation opening, and the bottom end of the filter box communicates with a blow-off pipe; the input end of the speed reducer is connected with the output end of the motor, a mechanical seal is arranged between the transmission shaft and the inner side wall of the first rotating hole, the input end of the transmission shaft is connected with the output end of the speed reducer, and the left end of the first circular plate is concentrically connected with the right end of the transmission shaft; mechanical seals are arranged between the guide pipe and the inner side walls of the second rotating hole and the third rotating hole, a valve is arranged on the guide pipe, the filter screen is transversely installed between the first circular plate and the second circular plate, and the scraping mechanism is installed on the cover plate.

According to one or more embodiments presently described, petroleum may be recovered from a sub-surface reservoir by a method that may include passing one or more exothermic reaction components into an aqueous zone of the sub-surface reservoir in a geological formation. The reservoir may comprise a petroleum zone including petroleum and an aqueous zone including water. The petroleum zone and the aqueous zone may be separated, at least partially, by a tar zone. The method may further include reacting the one or more exothermic reaction components to increase the temperature, pressure, or both, in the aqueous zone to reduce the viscosity of the tar zone such that pressure in the aqueous zone may drive extraction of petroleum from the petroleum zone to the surface.

The invention relates to the technical field of petroleum extraction of petroleum wells, in particular to a high-temperature gas injection valve for a petroleum well. The high-temperature gas injection valve for the petroleum well comprises a gas injection valve body, a spline shaft and a gas injection valve assembly, wherein a gas injection valve opening is formed in the upper end of the gas injection valve body; the gas injection valve assembly is accommodated in the gas injection valve body and is slidably connected with the inner wall of the gas injection valve body; and the spline shaft is inserted in the gas injection valve assembly and can drive the gas injection valve assembly to move vertically, so that the gas injection valve opening can be opened or closed. During gas injection at high temperature, a pump does not need to lift, gas can be continuously and repeatedly injected, the operation time is shortened, operation frequency is reduced, the labor intensity of workers is also reduced, and the petroleum production efficiency is improved.

The invention provides petroleum cleaning and extracting equipment for a sandy mud flat oil spilling area. The petroleum cleaning and extracting equipment comprises an oil-sand mixture collecting device, an oil-sand mixture conveying device, an oil-sand mixture processing device, a petroleum extracting device, a petroleum collecting device and an olein extracting device. An oil-sand mixture is conveyed to the oil-sand mixture conveying device through a scraper blade by the oil-sand mixture collecting device, then a large amount of oil-sand mixture is conveyed into a treatment barrel of the oil-sand mixture treatment device by the conveying device to be treated, dissolved oil is adsorbed to the petroleum collecting device through the petroleum extracting device, when the petroleum collecting device is full of petroleum, the petroleum is conveyed to the olein extracting device through a petroleum conveying pipe for distillation, so that the extraction of olein is realized. According to the petroleum cleaning and extracting equipment, the one-stop operation of directly collecting and purifying mud flat waste oil into available energy is realized, the spilled oil in a sandy mud flat area can be cleared more quickly and thoroughly, the clearing cost is effectively reduced, and the completion efficiency is improved.