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 invention relates to steel for a straight welding petroleum casing pipe with steel grades of N80, P110 and L80 and the manufacture of the casing pipe. The steel for the straight welding petroleumcasing pipes with the steel grades of N80, P110 and L80 contains the following chemical components in percentage by weight: 0.10-0.24 C, 0.18-0.22 Si, 1.4-1.6 Mn, 0.06-0.08 P, 0.002-0.008 S, 0.3-0.6 Cr, 0.12-0.14 Nb, 0.08-0.12 V, 0.18-0.22 Ti, and the balance of Fe and inevitable impurities. The steel for the petroleum casing pipe with the high steel grades, which is used for well drilling production and technique, is excellent, has reliable technology, stable property, low cost and convenient use and can be widely used for the petroleum casing pipe used for the well drilling production and technique and save production cost for the extraction of petroleum and gas contained in oil fields, thereby having wide market application prospect.

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.

A method is provided for the use of a process additive system to improve the recovery of oil from a process stream generated in a bioproduct production process.

The invention discloses a petroleum extraction device for molecular distillation. The petroleum extraction device comprises a quantitative chamber, a press switch, a taking amount adjustment mechanismand a pumping mechanism; and the pumping mechanism is arranged at the side end of the quantitative chamber, the pumping mechanism is connected with the quantitative chamber, a sliding plate is slidably arranged at the inner side of the quantitative chamber, the press switch fixed at the lower end of the taking amount adjustment mechanism is arranged above the sliding plate, and the taking amountadjustment mechanism comprises a mounting plate, a first threaded rod, a first threaded sleeve and a rotating disc. The device has novel design, the rotating disc drives the first threaded sleeve to rotate by the engaged effect of a bevel gear A and a bevel gear B, the first threaded rod is driven to move when the first threaded sleeve rotates in order to make the mounting plate drive the press switch to adjust the position, and the upward movement distance of the sliding plate determines the content of petroleum in the quantitative chamber in order to adjust and determine the taking amount ofthe petroleum, so the device has the advantages of accuracy in taking amount, and convenience in use.

The invention provides a seismic source location method eliminating influences of velocity errors, and belongs to the field of seismic exploration. According to the method, a velocity error model related to velocity is obtained through a given seismic source position, the velocity error model is applied to an objective function, all the possible seismic source positions are scanned, and the coordinate of the point which enables the value of the objective function to be minimum is the coordinate of the seismic source to be located. The method eliminates the strong dependence of seismic locating accuracy on the velocity model, can achieve accurate location on the seismic source, changes of subsurface structures and fluid can be detected through the accurate location on the seismic source, and therefore the exploitation and the extraction of petroleum, natural gas and the like can be further guided.

A petroleum from oil / water mixtures extraction method for use as an adjunct to current stationary active second containment methods for industrial oil spill accidents, and as an adjunct to currently used equipment for residual oil removal in clean-out measures for, among others: canal barges, hazmat trucks, oil storage tanks, oil tankers, oil transportation railroad cars, river barges, as an on-board separation system for petroleum based bilge, and in coastal and inland waterways clean-up from oil spill accidents.

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 relates to a technology for extracting volatile oil from patchouli, in particular to a refinement and extraction method of patchouli oil. The method mainly comprises the following three steps: (1) steam distillation; (2) extraction of petroleum ether, ethyl ether and ethyl acetate; and (3) reflux extraction at 55-80 DEG C and 20-40Pa, and collection of condensate of the refined patchouli oil. In the method, patchouli alcohol (C15H26O) content in the obtained condensate of the refined patchouli oil is not less than 26.0%; and by adopting various organic extracts, higher yield up to about 4.2-6.5% can be obtained through calculation of weight of patchouli leaves on the premise of guaranteeing the patchouli alcohol content.

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 petroleum residue repeated extraction device. The petroleum residue repeated extraction device comprises an outer cylinder. An inner cylinder is connected with the center ofthe interior of the outer cylinder in a rotating mode, and a gear ring is welded on the outer wall of one side of the inner cylinder. A motor is fixedly connected with the top of the outer cylinder through bolts, a rotating rod is connected with one end of the motor in a rotating mode through a rotating shaft, and a gear is welded on the outer wall of one side of the rotating rod. According to thepetroleum residue petroleum extraction device, petroleum residues can generate centrifugal force through the inner cylinder which conducts high-speed rotation, petroleum and solid residues can be separated through the centrifugal force and unidirectional separating holes, and then the effect of separation and extraction of the petroleum in the petroleum residues is achieved; the petroleum residues are stirred by stirring rods on a fixing rod, and therefore the separation effect of the petroleum residues is further improved, and the extraction efficiency is improved; and the heat which is generated when electric heating tubes work enables the petroleum residues in the inner cylinder to be heated, and therefore the fluidity of the petroleum is improved, and then the petroleum extraction effect is improved.

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.

One embodiment is a method for extracting oil from a near-depleted oil well. A portable natural gas, methane, or petroleum reformer is brought to a site of the oil well. A quantity of natural gas, methane, or a portion of the locally produced petroleum and a quantity of water is fed into the reformer. The natural gas, methane, or petroleum is reacted with the water in the reformer to generate a driver gas containing a mixture of hydrogen gas and carbon dioxide gas. The driver gas is compressed to a pressure appropriate for the oil well, the driver gas is injected into the oil well, and the oil is recovered from the near-depleted oil well. In one embodiment, sulfur is first removed from the natural gas or crude petroleum. Another embodiment is a method for generating electricity without greenhouse gas emissions. The driver gas is separated into a substantially hydrogen stream and a substantially carbon dioxide stream prior to injecting the driver gas into the oil well, and the hydrogen stream is used to generate electricity.

The invention discloses an oil extraction device for petroleum residues in the technical field of oil extraction devices for petroleum residues. It includes a crushing box, a crushing motor is fixedly installed in the upper middle of the crushing box, a crushing shaft is fixedly connected to the bottom of the crushing motor, and the circumference of the crushing shaft is fixedly connected. The crushing claw, the crushing box is fixedly installed with the servo motor, the bottom of the crushing motor is fixedly connected to the shaft, the shaft is threaded to the threaded barrel, the lower end of the threaded barrel is fixedly connected to the bottom plate of the crushing box; the top of the bottom plate of the crushing box is fixedly connected to the annular sealing strip, and the bottom of the crushing box is provided with an annular sealing groove A plurality of supporting structures are fixedly connected around the crushing box, the right side of the crushing box is fixedly connected to the feeding structure, the left side of the crushing box is fixedly connected to the oil outlet pipe, and the left side of the crushing box is provided with an oil storage device. Fill the tank with clean water and then stir to extract oil from the oil residue by using the principle that oil is incompatible with water and its density is lower than that of water, while the density of oil residue is greater than that of water.

The invention belongs to the field of petroleum extraction, and relates to petroleum extraction equipment for petroleum residues, the petroleum extraction equipment for the petroleum residues comprises a shell, a feeding port is fixedly formed in the upper side of the shell, a crushing cavity is formed in the upper end in the shell, the crushing cavity communicates with the feeding port, first rotating shafts are rotationally arranged on the front portion and the rear portion in the crushing cavity correspondingly, and the crushing cavity communicates with the feeding port; and the right end of each first rotating shaft is rotationally connected with the cavity wall of the crushing cavity, and the left end of each first rotating shaft penetrates through the cavity wall of the crushing cavity. A first motor drives a first motor shaft to rotate, so that two first rotating shafts are driven to rotate relatively through a belt pulley and a belt, a crushing seat is driven to rotate, a crushing block is driven to rotate oppositely, a second motor shaft is driven to rotate through a second motor, a third gear is driven to rotate, and a centrifugal barrel is driven to rotate; and therefore, the residues are thrown in the centrifugal cavity under the action of centrifugal force, and complete crushing of the petroleum residues is realized.

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.

The preparation method of fuel oil by utilizing oil sludge is characterized by that firstly, using oil-water separation pump to separate effluent oil reject under the condition of normal pressure and0-50 deg.C; adding 0.03-0.05 portion of flocculant in separated portion of oily material, and using pump to extract petroleum, then using oil grinding mill and filter to grind and filter the flocculent organic material, and placing the filtered material whose grain size is 50-100 meshes into still type tank and placing the filtered material whose grain size is 0-50 meshes into normal pressure furnace to make heating treatment at 100-300 deg.C; finally, respectively placing the treated flocculent organic materials into normal pressure dispersion distillation tank and normal pressure dispersiondistillation tower, under the catalysis of defoaming agent making reaction to form fuel oil obtained by blending bas oil with heavy diesel oil.

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.

In a method for purifying an oil (8) / water (42) mixture (40), the mixture (40) is fed to a container (48) having an ultrafiltration unit (52) with a membrane (30), and a protective material (50) is added to the mixture (40), which protective material, directly or after chemical reaction with the water from the mixture (40), as a film (62) on the membrane (30), keeps free oil (8) away from said membrane. Purified process water for extracting and / or refining of petroleum (8) is thus produced from process water (42) which is contaminated with petroleum (8). A purification device (64) substantially comprises a container (48) having an ultrafiltration unit (52) with a membrane (30), a feed line (28) to the container (48) and an addition device (27) for protective material (50) in the flow path (56) to the membrane (30).

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 an oil-based drilling cuttings extract and an extraction method for oil-based drilling cuttings. The oil-based drilling cuttings extract comprises: an ionic liquid, a co-extraction agent and water; a mixture of the ionic liquid, a co-extraction agent and water The mass ratio is (3-5):1:(8-10). Compared with the prior art, the present invention utilizes the extraction and penetration properties of the ionic liquid and the emulsification properties of the co-extractant to extract and enrich the petroleum components in the oil-based cuttings into the oil-based cuttings extract; and, As a green solvent, ionic liquid can eliminate environmental pollution and safety problems caused by the use of volatile organic solvents, and realize low-cost and harmless treatment of oily solid waste.

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.

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 inthe 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 provides an oil cleaning and extraction equipment used in sandy beach oil spill areas, comprising: an oil-sand mixture collection device, an oil-sand mixture transmission device, an oil-sand mixture processing device, an oil extraction device, an oil collection device and olein extraction device. The oil-sand mixture is sent to the oil-sand mixture conveying device through the scraper through the oil-sand mixture collection device, and then the conveying device sends a large amount of oil-sand mixture to the treatment barrel of the oil-sand mixture processing device for treatment, and then dissolves it through the oil extraction device The oil is adsorbed to the oil collection device. When the oil in the oil collection device is full, it is sent to the olein extraction device through the oil delivery pipe for distillation to realize the extraction of olein. The invention realizes the one-stop operation of directly collecting and purifying waste oil from tidal flats into usable energy, can more quickly and thoroughly clean up oil spills in sandy tidal flat areas, effectively reduces cleaning costs, and improves completion efficiency.