31results about How to "Improve oil production efficiency" patented technology

The invention relates to a novel domestic fine filtration press which more thoroughly and more cleanly extracts oil seeds. The novel domestic fine filtration press comprises a driving mechanism, a pressing mechanism and an oil collecting mechanism, wherein the driving mechanism provides power for the pressing mechanism; a material to be pressed enters the pressing mechanism and is pressed; the oil collecting mechanism is used for filtering and collecting oil pressed by the pressing mechanism, and defines an upper-layer oil filtering space and a lower-layer oil collecting space; the upper-layer oil filtering space seals the lower-layer oil collecting space during oil storage; the oil collecting mechanism is used for accelerating filtration and oil collection by utilizing the pressure difference between the upper-layer oil filtering space and the lower-layer oil collecting space. The domestic fine filtration press has the advantages of high filtration rate, clean and directly edible produced oil and the like.

The invention relates to a semantics based oil well indicator diagram measuring method. The semantics based oil well indicator diagram measuring method comprises the steps of firstly semantically packaging data information of an oil well, and then performing indicator diagram oil gauging based on the semantically packaged data. Due to introduction of a semantic technology, an indicator diagram oil gauging system provides a standard noumenal interface to a user, so that more users with limited computer knowledge can visit the indicator diagram oil gauging system, configuration becomes simpler and more convenient and operation becomes easier when the indicator diagram oil gauging system is used; on the other hand, as the mode of analyzing the indicator diagram is adopted to measure the yield of the oil well, the original oil gauging mode of performing manual routing inspection for the oil well and measuring with a need of stopping the well is avoided. Therefore, the well does not have to be stopped while the manpower resource is saved, and the oil production efficiency of the oil well is increased indirectly.

The invention provides a fireflooding chemical ignition combustion improver. The fireflooding chemical ignition combustion improver comprises a component A and a component B, wherein the component A takes up 30-70 wt% of the weight percentage, the component B takes up 30-70 wt% of the weight percentage, and the total weight percentage is 100%; the component A comprises at least one of carbon powder, clay, metal, metal oxide and metal salt; the component B comprises at least three of carbon powder, sulphur, rosin, nitrocotton, pulverized coal, phenolic resin, aluminum powder and magnesium powder. The invention further provides a fireflooding chemical ignition method, wherein the fireflooding chemical ignition combustion improver is used. The fireflooding chemical ignition combustion improver is safe in operation and good in ignition reliability. The fireflooding chemical ignition method can achieve quick ignition under an aerobic condition at the formation temperature of about 250 DEG C and improve fireflooding oil production efficiency.

The invention discloses a high-pressure-resistant instant-solubility fracture ball and a preparation method thereof. The high-pressure-resistant instant-solubility fracture ball is prepared from the following components, by weight, 70-90 parts of Mg, 15-20 parts of an Al-Ga alloy, 15-20 parts of an enhanced Al alloy, 5-10 parts of Ni, 10-20 parts of Ag, 0.1-0.5 part of micro element In, 0.1-0.5 part of micro element Sn and 0.1-0.5 part of micro element Bi. The preparation method includes the following preparation steps that (a), Ag and the micro elements are smelted under the vacuum condition; (b), Mg, the Al-Ga alloy, Ni and the alloy prepared in the step (a) are smelted together; and (c), smelting is performed together with the enhanced Al alloy, and after smelting is completed, the smelted mixture is injected into a mold, and cleaning is performed. The high-pressure-resistant instant-solubility fracture ball and the preparation method thereof have the beneficial effects that the supporting strength requirement during well fracturing operation can be met, fast solubility can be achieved, and reliability is high.

The present invention discloses a method of stratum-changing production and technological pipe column in oil exploitation. After the technological pipe column is set in the well and liquid pressure is applied, the well switches are opened or closed in the stratums to be changed. The technological pipe column controlled by surface switch controlling and detecting device consists of casing valves, well mouth four-way valve, oil relieving device, pump, casing, oil pipe, packer, well switches and pipe plug. There is a change-over device set between the pump and the packer and after the pipe column is set to preset position, the pipe column is separated.

The subject invention provides microbe-based products, as well as their use to improve oil production and oil transmission and refining by, for example, remediating the disposable layers in oil tanks and other oil storage units. The subject invention can be used to remediate a sludge layer and / or other dissolved solid layers that form in oil storage tanks. Advantageously, the subject invention can decrease the cost of mechanical remediation of disposable layers, and aid in the recover), of more pure hydrocarbons from crude fluids.

The invention relates to the technical field of oil and gas development, in particular to a single-well multi-layer simultaneous injection recovery technique string. According to the single-well multi-layer simultaneous injection recovery technique string, each double-channel string is composed of strings which constitute two independent channels, and the double-channel strings and double-channel liquid flow exchangers are alternately connected from top to bottom; the lower end of the double-channel liquid flow exchanger of the bottommost end is connected with a multifunctional guiding head, and the double-channel strings at the upper ends and the lower ends of the double-channel liquid flow exchangers are provided with interlayer packers correspondingly; and sealing is conducted between the outer sides of the double-channel strings and technique casing pipes through the interlayer packers, so that each double-channel liquid flow exchanger is located in a mining injection layer space. According to the single-well multi-layer simultaneous injection recovery technique string, simultaneous conducting of single-well multi-layer water injection or steam injection and oil recovery is achieved, the oil recovery time efficiency is improved, and the operation cost is reduced.

Provided are a full-negative-pressure recovery process of dry distillation furnace generation gas in oil shale dry distillation oil refining and a system thereof. The recovery system comprises a dry distillation furnace, a mud collecting tank, a mud collecting pump, a collecting pipe, washing saturation towers, an indirect cooling tower, a gas exhaust-feeding machine, a washing pool, a washing pump and a heating furnace. According to the recovery process, generation gas generated by the dry distillation furnace in oil shale dry distillation oil refining is pumped to the collecting pipe, a washing saturation tower I and a washing saturation tower II for spraying washing through the gas exhaust-feeding machine, the gas is conveyed into the indirect cooling tower, after heat exchanging in the direct cooling tower, one part of the gas is conveyed into the heating furnace by the gas exhaust-feeding machine for heating the heating furnace, the other part of the gas is used as circulation gas to be conveyed to the bottom of the washing saturation tower II, and after heat exchanging, the gas enters the heat storage type heating furnace for continuous heat exchanging and is used as a heat carrier to be conveyed to the dry distillation furnace. The process and the system have the advantages that the process is simple, whole system heat is fully used, energy loss is low, water using amount is small, and oil productivity can be improved.

The invention relates to an oligomeric viscoelastic surfactant, a synthesis method and a viscous acid formula in the technical field of viscous acids in oil reservoir exploitation. The oligomeric viscoelastic surfactant is prepared by the following steps: firstly, taking organic amine and halogenated alkane as main raw materials, synthesizing a quaternary ammonium salt-containing polyhalogenated alkane intermediate; then, adding tertiary amine into a synthesis product in the first step, and continuing a synthesis reaction to obtain an oligomeric quaternary ammonium salt cationic viscoelastic surfactant. The oligomeric viscoelastic surfactant can replace the existing viscoelastic surfactants in the field of oil production engineering, has a plurality of quaternary ammonium salt cations on linking groups in comb-like distribution, has a high degree of polymerization, effectively reduces the critical micelle concentration, has relatively good thickening, anti-swelling, and drainage-promoting effects and makes a rock wetter; in addition, the surfactant structurally does not contain amide bonds, so that decomposition under a strong acid condition is effectively avoided and the application range in the oil field acidifying industry is widened.

The invention discloses application of morpholine in controlling unsaponifiable matter content and increasing DHA grease content in a schizochytrium limacinum fermentation process, and aims to reduce sterol content and increase grease content in the schizochytrium limacinum fermentation process by exogenously adding morpholine in the schizochytrium limacinum fermentation process. In addition, optimum addition concentration of morpholine is determined according to the biomass of cell growth of schizochytrium limacinum, the oil yield and the unsaponifiable matter content index; compared with the situation that 1.8 g / L of morpholine is added, the sterol content is reduced by 64.86%, the oil yield is increased by 67.51%, the DHA content is increased by 25.5%, and the astaxanthin content is increased by 85%. By means of the technical scheme, the content of DHA grease and astaxanthin produced by the schizochytrium limacinum is obviously improved. In the invention, the morpholine is applied to regulation and control of the unsaponifiable matter content of schizochytrium limacinum for the first time, wherein a new thought is provided for increasing the content of grease in schizochytrium limacinum, and the method has huge potential in the aspect of industrial production.

The invention is a thermal cracking system, which comprises a feeding module or a solid discharging module, and a reaction furnace. The feed module transports the feed from the outside to the reaction furnace, and during the conveying process, the feed is heated by the feed module so that it becomes molten before entering the reaction furnace, blocking the internal space of the feed module and making the outside world Air cannot enter the reactor. The solid discharge module is used to transport the solid discharge from the reactor to the outside. One end of the solid discharge module is connected to the reaction furnace, and the other end of the solid discharge module has a first opening connected to the outside. In the process that the solid discharge is continuously transported from the reaction furnace to the outside through the solid discharge module, the size of the first opening is used to make the rate at which the solid discharge leaves the solid discharge module through the first opening not greater than that of the solid discharge module. The rate at which material enters the solids discharge module from the reactor. The thermal cracking system of the present invention at least has the beneficial effects of increasing yield and improving safety.

The invention provides a downhole device of an oil pumping well. The device of the oil pumping well has the functions that a pipe column is anchored, hot washing water is resisted to be poured into an oil layer, and the anti-spraying and oil drainage effects are achieved. The downhole device comprises a transition connector (1), a center pipe (9), an upper connector (3), a rubber cylinder (4), an upper cone (5), an anchoring tube (7), a lower cone (10), a screw shell (15), an upper valve main body (2), an upper valve ball (17), a valve ball spring (18), a lower valve ball (19), a block tooth (6), a block tooth spring (8), a large friction block (12), a large friction block spring (13), a small friction block (14) and a small friction block spring (20). According to the downhole device of the oil pumping well, the problem of well site pollution caused by well liquid spraying and gushing towards the ground during pump checking of the high-pressure oil well is solved, the functions that the pipe column is anchored, the hot washing water is prevented from being poured into the oil layer, oil liquid in the pipe column is discharged in the pump checking process, and the oil liquid is controlled to spray and gush are integrated, delivering into the well at a time is achieved, and the well does not need to be lifted during pump checking; and in the whole process of downhole serving in the production period, working links are effectively reduced, the working man-hour is shortened, oil pumping production cost is reduced, and oil pumping production efficiency is improved.

The invention relates to a semantic-based oil well work map measurement method. Firstly, the data information of the oil well is semantically encapsulated, and then the work map is used to measure oil according to the encapsulated semantic data. Due to the introduction of semantic technology in the present invention, the power map oil measurement system provides users with a standard body interface, so that more users with limited computer knowledge can access the power map oil measurement system, and when using the power map oil measurement system, the configuration is more convenient It is simple and easy to operate; on the other hand, due to the method of analyzing the power map, the oil well production is measured, which avoids the original manual inspection of the oil field, and the oil measurement method that needs to stop the well for measurement, thus saving human resources and at the same time There is no need to shut down the well, which indirectly improves the oil production efficiency of the oil well.

The invention relates to the technical field of extraction of vegetable oil, in particular to an extraction process of okra seed oil. The process comprises the following steps: S1, selecting full okraseeds and removing withered and black seeds; S2, placing the selected seeds in a drying oven, setting temperature at 30-45 DEG C, heating the seeds for 20-30 min, then naturally cooling the seeds, and grinding the seeds into powder which is 30-50 meshes; S3, pressing the powdery okra in a flaking mill for 1-3 h; S4, stir-frying the pressed okra in a wok for 10-20 min; S5, pressing the okra in theflaking mill again for oil production; S6, repeating S3 and S4 3-5 times, and mixing extracted crude oil; S7, filtering the extracted crude oil to obtain essential oil. Through the adoption of the structure for extracting the okra seed oil, the oil production efficiency is high, additives are avoided, and the okra seed oil has high nutritional value.

The invention relates to an oligomeric configuration viscoelastic surfactant, a synthesis method and a thickened acid formula in the technical field of thickened acid in oil layer exploitation. The oligomeric configuration viscoelastic surfactant of the present invention first synthesizes a quaternary ammonium salt-containing polyhaloalkane intermediate with organic amines and haloalkane as main raw materials; then adds tertiary amines to the first-step synthesis product and continues the synthesis reaction to obtain Oligomeric configuration quaternary ammonium salt cationic viscoelastic surfactant. The oligomeric configuration viscoelastic surfactant of the present invention can replace the existing viscoelastic surfactant in the field of oil production engineering, and has multiple quaternary ammonium salt cations on the comb-like distribution of the linking group, which has a high degree of polymerization and effectively reduces The critical micelle concentration has good thickening, anti-swelling, and drainage-aiding effects, making the rock more water-wet, and the surfactant structure does not contain amide bonds, which can effectively avoid decomposition under strong acid conditions and improve oil field acidizing industry. range of use.

The invention relates to the technical field of oil well oil extraction, in particular to a safety type lifting high-temperature gas injection valve for an oil well, which comprises an outer pipe, a movable pipe and a gas injection pipe fitting, the movable pipe is fixedly sleeved on the outer side of the gas injection pipe fitting, the outer pipe is sleeved on the outer side of the movable pipe, and the movable pipe is driven by a driving device and does linear motion on the outer pipe; the gas injection pipe fitting is formed by splicing a plurality of groups of piston cylinders, a connecting ring sleeves the outer side between every two adjacent groups of piston cylinders, a piston is arranged in each group of piston cylinders, a push rod is fixedly inserted in the middle of each piston, a reciprocating motion mechanism acting on the push rods is further arranged in the movable pipe, and through holes are formed in the lower ends of the side walls of the piston cylinders; a gas injection assembly is arranged in each through hole. According to the invention, the gas injection pipeline can be effectively lengthened or shortened according to actual requirements, so that the device is more flexible and efficient to use; and gas injection can be carried out on multiple points in the vertical direction of the oil well, and the uniformity of high-temperature gas injection can be improved.

The invention discloses a cleaning paraffin remover for an oil field and a preparation method of the cleaning paraffin remover. The cleaning paraffin remover consists of the following components in percentage by mass: 5-10% of OP-10, 3-15% of hexadecyl trimethyl ammonium chloride, 10-15% of ethanol, 2-5% of sodium salicylate and 61-80% of water, and the sum of the weight percentages of the components is 100%. The problems that in the oil extraction process, the well washing frequency is large, the oil production efficiency of an oil well is low, and the oil extraction cost is high are solved.

The invention discloses a method of producing oil with algal biomass pyrolysis. The method comprises the following steps; drying, dehydrating and grinding the shale gas oil-based drill cuttings for use; airing, crushing, drying, dehydrating and grinding the algal biomass for use, mixing the obtained shale gas oil-based drill cutting and the obtained algal biomass, heating the mixture to 300 to 500DEG C in anaerobic condition and pyrolyzing the mixture for 1.5 to 3h in the condition of thermal insulation, and finally collecting, drying and condensing a gaseous product during pyrolysis so as toobtain the biomass oil product. The oil-based drill cuttings containing harmful contaminant are included in the list of national hazardous waste. The shale gas oil-based drill cuttings are subjectedto pyrolysis as well as the algal biomass, so that the environmental pollution of shale gas oil-based drill cuttings is removed along with producing oil, particularly, the oil rate is reduced to or even lower than 0.3% by weight, and further, the efficient utilization of traditional industrial waste is realized, the waste is turned into wealth and the product added value is enhanced.

The invention discloses a rear tilt angle pumping unit, which includes a base, a vertical column, a boom, power wheels, a driving mechanism, a swing arm, a support frame, a weight box, a rope roll, arope stabilizer, a beam hanger and a steel rope. The lower end of the vertical column is fixed to the base, the upper end of the vertical column is fixedly connected with the boom, and the two ends ofthe swing arm are connected with the vertical column and the weight box correspondingly; the support frame and the driving mechanism are both fixed to the base, and the power wheels are fixed to thetwo sides of the support frame; the power wheels are eccentrically connected with a connecting rod for being movably connected with the swing arm, and the rope stabilizer is fixed to the vertical column; and the rope roll includes a first rope roll, a second rope roll, a third rope roll, a fourth rope roll, a fifth rope roll, a sixth rope roll and a seventh rope roll, one end of the steel rope isconnected with the beam hanger, and the other end of the steel rope is connected to the rope stabilizer after successively bypassing the first rope roll, the second rope roll, the third rope roll, thefourth rope roll, the fifth rope roll, the sixth rope roll and the seventh rope roll. The rear tilt angle pumping unit can realize smooth reversing in the whole oil pumping process, and meanwhile, long-stroke oil pumping can be easily realized.

The invention relates to an intelligent control method for a rodless lifting system for an oil well. The intelligent control method comprises the steps that after a system is initialized, the hydraulic difference of the rodless lifting system is collected, and the liquid level of the oil well is calculated; a submersible progressing cavity pump is started and operated for a specified time, and then operating electrical parameters and the liquid production capacity of an oil well wellhead are monitored in real time; when the liquid displacement occurs on the wellhead, the pump lifting displacement is increased to the set pump displacement; when the operating current of the submersible progressing cavity pump does not exceed the limit, whether the working liquid level of the oil well is descended or not is judged; if the working liquid level of the oil well is descended due to the large pump lifting displacement, the set displacement parameter value of the submersible progressing cavitypump is decreased; whether the current rotating speed of the submersible progressing cavity pump reaches the lowest rotating speed or not is judged; and if the current rotating speed of the submersible progressing cavity pump does not reach the lowest rotating speed, the step that the pump lifting displacement is increased to the set pump displacement is executed. According to the intelligent control method, the problem of impedance compensation matching of cables of different oil well depths is solved through an adaptive voltage and current uplift technology, thus an underground submersible motor obtains good electricity energy matching, the operating period is long, the lifting efficiency is high, and the energy consumption cost is low.

The invention relates to a control method for adjusting a jig frequency automatically. The control method comprises: S1, a frequency converter is driven to start operation at a starting frequency; S2, a frequency range is defined by using a current operating frequency of the frequency converter as a reference point and is divided equally to obtain a plurality of frequency points; S3, the frequency converter is controlled to operate at each frequency point so as to obtain a corresponding determination parameter of the frequency converter during the operation at each frequency point; S4, an optimal determination parameter is searched and the frequency converter is controlled to operate at the frequency point corresponding to the optimal determination parameter; S5, whether the current operating frequency of the frequency converter is equal to a lowest lower-limit frequency is determined; S6, if so, whether the number of times of consecutive occurrence of a phenomenon that the current operating frequency of the frequency converter is lower than the lowest lower-limit frequency reaches a set number of times is determined; and S7, if so, the frequency converter is controlled to execute a standby mode.

The invention provides a simulation evaluation device. An annular space formed between an outer cylinder and a screen pipe is filled with fillers of different particle sizes, and pressure of an oil gas outlet is adjusted to preset pressure through an outlet pressure control device to simulate wellhead pressure. Oil gas is transported to the outer cylinder at the preset flow rate by an oil supply device, then the oil gas flows through the fillers and enters the screen pipe through a screen hole of the screen pipe, the oil gas flows out from the outlet pressure control device under the effect ofpressure difference, the oil production rate of the fillers of different particle sizes is measured by an inlet oil gas measuring device and an outlet oil gas measuring device, the influence of the particle size of gravel in sand producing wells on the productivity of an oil gas well is evaluated, the situation that optimization and modification are carried out on oil extraction equipment when the particle size of the gravel produced by oil well sand production is in an appropriate range is avoided, the unnecessary oil production process is simplified, oil production efficiency is improved, oil production cost is saved, and an important basis is provided for the development and treatment of a sand production well.

The invention provides a fracturing device, and belongs to the field of fracturing operation in oil and gas field development, the fracturing device comprises a plurality of stages of fracturing mechanisms which are connected in sequence, each fracturing mechanism comprises an upper connector, a body, a sliding sleeve, a lower connector, a switch short section and a soluble ball, a circumferential groove is formed in the inner surface of each sliding sleeve, and the upper connector and the lower connector are connected in sequence. Longitudinal seams and bosses matched with the circumferential grooves are evenly distributed on the outer surfaces of the switch short sections, the minimum inner diameters of the sliding sleeves of all the stages of fracturing mechanisms are the same, the lengths of the circumferential grooves are different, the minimum outer diameters of the switch short sections of all the stages of fracturing mechanisms are the same, and the lengths of the bosses are different. According to the device, the boss of the switch short section is matched with the circumferential groove of the sliding sleeve, the multiple sliding sleeves with the same inner diameter can be opened through the switch short section of the multi-stage fracturing mechanism, then a large-drift-diameter production channel of a shaft is formed through the multiple sliding sleeves with the same inner diameter, and the oil production efficiency of an oil well is improved.

The invention discloses liquefaction equipment and method for biomass liquefaction. A biomass pulping heating furnace is communicated with a first reactor, a second reactor is arranged on one side ofthe first reactor, a first conveying pipe is arranged at the lower part of the second reactor, the first reactor is communicated with the first conveying pipe through a corresponding pipeline, the upper part of the second reactor is communicated with a high-temperature separator, the high-temperature separator is communicated with a reduced pressure distillator, the high-temperature separator is communicated with a feeding pipe of an online hydrogenation reactor through a second conveying pipe, and the feeding pipe of the online hydrogenation reactor is communicated with a gasoline separator.Extra media such as heat conduction oil are not used, and part of self-produced oil is used for heat conduction and swelling, so that the production cost and the separation and recovery cost are reduced. The chemical stability of biomass fuel oil is improved, condensation of biomass pyrolysis free radical fragments is prevented, and the yield is increased. The heat value of oil is increased and the oil can be used as diesel oil directly. The acidity of the oil is reduced and a large-scale industrial device can be realized.

The invention relates to the technical field of bioengineering, in particular to a filamentous fungus Aspergillus niger (Aspergillus niger) strain E1 for producing biological oil and its application. The invention optimizes the fermentation conditions and culture medium of the oil-producing strain Aspergillus niger strain E1, so that the culture biomass is as high as 10.49g / L, and the oil content is as high as 4.59g / L. The biomass and oil content increased by 14.39% and 85.08% respectively compared with before optimization. The Aspergillus niger strain E1 provided by the present invention can produce various fatty acids such as oleic acid, α-linolenic acid, and behenic acid. The strain can be widely used in the production of fatty acids and biodiesel, and has extensive industrial application value.

The invention relates to an improvement of a wellhead sealer structure, in particular to a pumping well wellhead sealer. The pumping well wellhead sealer comprises a body, a packing compacting part isarranged on the lower portion of the body, the inner diameter of the packing compacting part is smaller than the inner diameter of the body, a packing conveyor is arranged at the upper end of the body, and the packing conveyor comprises a rotary table rotatably connected with an upper end opening of the body. A pushing block is arranged at the lower end of the rotary table, the lower surface of the pushing block is obliquely arranged, the pushing block is arranged in the body, and a packing lifting-assisting device is arranged on the side of the middle portion of the body. The pumping well wellhead sealer does not need to stop the production of an oil well when replacing the packing, the packing conveyor only needs to be rotated, and the pushing block of the packing conveyor can push thepacking down round by round, the oil well does not need to be stopped, packing can be increased, the sealing effect is achieved, and a non-stop well method can greatly improve oil production efficiency.

A tension-adjustment dual-roller-set correction packing box adopts design which comprises rubber packing of a mirrored symmetric sealing face structure, built-in dual roller sets and a bulb steering structure. The packing box comprises a packing box main body, the rubber packing, an upper press cover, a lower connector, a bulb connector, an annular clamp, a lower press cover, a first roller set and a second roller set, wherein forced centering correction is conducted by an oil production polish rod, so sealing effects between the oil production polish rod and the rubber packing are improved; by the bulb steering structure between an upper connector and the bulb connector, elastic tension of the oil production polish rod is adjusted in a circulative manner, so generation of friction hard points is avoided, and damage in surface smoothness of the oil production polish rod and wear of the rubber packing are relieved; when the packing box is applied to oil production, centering accuracy ofthe oil production polish rod can be increased, and sealing effects can be improved; and in addition, the service life of the oil production polish rod is prolonged, friction strength and fatigue damage of the packing are reduced, consumption of oil production is reduced, hidden dangers in safety production are eliminated, cost of oil production is saved, and production efficiency of oil production is increased.