30results about How to "Improve oil production efficiency" patented technology

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 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 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 discloses a liquefaction equipment and method for biomass liquefaction. The biomass slurry heating furnace is connected with a first reactor, and a second reactor is arranged on one side of the first reactor. The second reactor The lower part is provided with the first feeding pipe, the first reactor is connected with the first feeding pipe through the corresponding pipeline, the upper part of the second reactor is connected with the high-temperature separator, and the high-temperature separator is connected with the vacuum distiller. The separator communicates with the feed pipe of the online hydrogenation reactor through the second feed pipe, and the feed pipe of the online hydrogenation reactor communicates with a gasoline separator. There is no need for additional media such as heat-conducting oil, and some self-produced oil is used for heat conduction and swelling, which reduces production costs and separation and recovery costs; the chemical stability of biomass fuel oil is mentioned to prevent the condensation of biomass pyrolysis free radical fragments, The yield is improved; the calorific value of the oil product is increased, which can be directly used as diesel; the acidity of the oil product is reduced, and a large-scale industrialized device can be realized.

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 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 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 a domestic oil press which is more convenient, is more practical and is more widely applied to each household. The domestic oil press comprises a driving mechanism and a pressing mechanism, wherein the driving mechanism provides power for the pressing mechanism; a material to be pressed enters the pressing mechanism and is pressed; the driving mechanism supplies power to the pressing mechanism and the pressing power of the pressing mechanism is 400-1,000W. The domestic oil press has the advantages of high applicability for materials to be pressed, high oil pressing speed, high oil extraction rate of the materials to be pressed, safety in use and long service life of equipment, high collection speed of finished oil, clean and directly edible finished oil and the like.

The invention discloses a production method of biodiesel oil. The production method comprises the following steps: (1), carrying out enzymolysis onto microbial oil-extraction leftover materials by cytase to obtain enzymatic hydrolysate of microbial oil-extraction leftover materials; (2), mixing water with the enzymatic hydrolysate in a mass ratio of (5-3):1, and adding magnesium sulfate, ferric chloride and sodium dihydrogen phosphate to prepare a heterotrophic microbial fermentation culture medium; (3), inoculating oil-production heterotrophic microbes in a fermentation culture medium in the step (2) to ferment; and inoculating oil-production autotrophic microbes in a sterilized f / 2 culture medium by virtue of sterile operation to carry out third-stage cultivation; and (4), collecting oil-production microbial biomass in the step (3), pre-treating, and extracting oil from normal hexane, alcohol and pre-treated microbial biomass in a volume ratio of 1:1:(1-3), carrying out rotary evaporation onto an organic phase at speed of 20 revolutions / minute-80 revolutions / minute under a temperature of 30 DEG C-50 DEG C, removing a solvent, removing impurities, and drying to obtain the microbial oil. The production method disclosed by the invention improves oil production efficiency, lowers production cost, is environment-friendly and land-saving, and protects the environment.

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.

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.