301results about How to "Improve pump efficiency" patented technology

The invention relates to an oil layer three-section block removing technology with excellent block removing effect. A block removing agent will be injected at three sections; then, clear water will be injected after the reaction of 4 to 24 hours at each section; the quantity of clear water will be 1 to 2 times of the sum between the volume of an oil pipe and the volume of the circular space from the bottom of the oil pipe to the top of a perforation interval. Because the composition and function of the block removing agents different from each other, the invention can be applied in a broad scope to adopt to the needs in various stratum, realize excellent block removing effect with the removing rate of over 75 percent, thus satisfying the industrial needs.

The invention discloses an intelligent winch type pulling oil production system. The system comprises a drive assembly (1), a rack (2), an oil pumping rope (3) and a control device (9), wherein the drive assembly is provided with a winding drum (11) and a drive device (12) driving the winding drum (11) to rotate; a pulley (21) is installed on the rack; one end of the oil pumping rope is wound on the winding drum (11) and the other end thereof is connected with an oil production device (4) in an underground oil well pipe (5) by bypassing the pulley (21); the control device is used for controlling the drive device (12) to rotate; the oil production device (4) is provided with an underground liquid column height detector (6); and the underground liquid column height detector (6) transfers the detected liquid column height signal to the control device so that the control device controls the drive device (12) to act when receiving the preset liquid column height signal, thus driving the oil production device (4) to pull the liquid in the oil well pipe (5) out of the well mouth. The system has high oil production efficiency, reduces the energy consumption and reduces equipment wear.

The invention relates to an oil exploitation ground transmission system and relative method, belonging to the oil exploitation technique. Said invention can measure the oil well, add liquid into oil well, heat the oil well and mixed transmit the oil gas. And said invention comprises four parts as aforementioned functions. Wherein, the oil well measuring part uses a liquid automatic measurer, which comprises a skip measurer, an automatic oil well switcher and a transmission tube. The invention uses industry computer to realize said functions, with high automatic degree, high practicability, and unmanned management.

A micro pump using a ferro-fluid/magneto-rheological fluid to drive a working fluid is proposed. The micro pump has a body with an accommodating space and an opening that communicates with the accommodating space. A ferro-fluid/magneto-rheological fluid and a magnetic field generating unit are disposed on the body. As the ferro-fluid/magneto-rheological fluid is attracted to the magnetic field after being magnetized, the ferro-fluid/magneto-rheological fluid is deformed or shifted to drive the working fluid, so as to control the working fluid to flow in and out of the accommodating space. Accordingly, the pump is improved for its efficiency and precision to control the flow while the back flow of the working fluid is prevented.

The invention relates to oil production equipment, in particular to an environment-friendly paraffin-scale preventive viscosity reducer for underground oil pumping, comprising a jet flow ultrasonator, an ultrasonic cavitation cavity and a cyclone. The viscosity reducer is characterized in that: the cyclone is an inlet end; the back end of the cyclone is butted against a jet flow ultrasonic signal emitter and then is butted orderly against the jet flow ultrasonator and the ultrasonic cavitation cavity; and the outer end of the ultrasonic cavitation cavity is an outlet. The viscosity reducer solves the problem that the prior similar products are not ideal in the effects of preventing paraffin and reducing viscosity, really has ultrastrong functions of preventing paraffin, reducing viscosity and preventing scale, greatly increases the liquidity of crude oil, raises pump efficiency, increases oil well yield, needs no additional power, is safe and environment-friendly, accords with oil production wells with different types, and is suitable for the oil wells with different paraffin content and water content as well.

A water well pump is shown which uses regenerative turbine technology. A submersible electric motor has an output shaft which drives multi-stage regenerative turbine stages of the pump. The various stages are made up of turbine impellers separated by intermediate plates. The turbine impellers have peripheral vanes which cooperate with surrounding scraper rings to form flow channels through the regenerative section of the pump and impart energy to the water passing through the pump. The pump can be powered by a low energy source, such as a solar panel.

The invention relates to oil production auxiliary devices, in particular to a dual-sound-wave eddy wax-preventing and viscosity-reducing device. The dual-sound-wave eddy wax-preventing and viscosity-reducing device is formed by connecting a jet-flow ultrasonic oscillation portion and an eddy flow guiding and jetting portion in a butted mode, wherein a cavitation chamber is arranged between the jet-flow ultrasonic oscillation portion and the eddy flow guiding and jetting portion. The dual-sound-wave eddy wax-preventing and viscosity-reducing device is characterized in that the jet-flow ultrasonic oscillation portion is composed of two stages of jet-flow ultrasonic oscillators which are arranged with the spacing distance of 200+/-50 mm, and the jet-flow ultrasonic oscillators are installed in a cylindrical shell together, the oscillatory wave frequency of the first stage of jet-flow ultrasonic oscillator ranges from 4000 HZ to 25000 HZ, and the oscillatory wave frequency of the second stage of jet-flow ultrasonic oscillator ranges from 8000 HZ to 50000 HZ. The jet-flow ultrasonic oscillator of each stage is provided with a jet nozzle, wherein a wedged through hole is formed in the middle of each jet nozzle, a support extending outwards is designed to be arranged at the small-opening end of each jet nozzle, and an oscillating elastic piece is installed on each support. According to the dual-sound-wave eddy wax-preventing and viscosity-reducing device, the problems that blocking can easily happen due to high wax content, viscosity of crude oil is large, and crude oil is poor in liquidity are solved better, yield of pumped oil is greatly increased, and the device is widely applicable to oil production of oil wells different in type, wax content and water content.

A hybrid working machine includes an engine, a motor generator connected to the engine, a variable displacement hydraulic pump configured to be driven to rotate with the output of the engine, and a control part configured to control the rotation speed of the engine and the variable displacement hydraulic pump. The control part is configured to determine the target rotation speed of the variable displacement hydraulic pump based on a hydraulic load and control the rotation speed of the engine using the target rotation speed.

The invention relates to a high-stability ASE light source for a high-precision fiber-optic gyroscope. The high-stability ASE light source is characterized by comprising a two-way backward light path,a Gaussian filter, a high-performance driving circuit and a power feedback control unit; the two-way backward optical path comprises a pump laser, a wavelength division multiplexer, a high-concentration erbium-doped optical fiber, an optical fiber reflector and an isolator; laser generated by the pump laser passes through the wavelength division multiplexer and then is injected into the erbium-doped optical fiber, spontaneous radiation signals are generated in the front direction and the rear direction respectively, and forward spontaneous radiation signal ASE light is amplified through the erbium-doped optical fiber after being reflected by the optical fiber reflector and overlaps with backward spontaneous radiation signal ASE light to form backward output light; the high-performance driving circuit comprises a TEC driver and a laser driver; and the power feedback control unit comprises a light splitting coupler, a photoelectric detector and a comparison circuit. The design is scientific and reasonable, the full-temperature average wavelength stability of the ASE light source is improved, and the improvement of the scale factor stability of the high-precision fiber-optic gyroscope is facilitated.

The invention relates to the technical field of coal-bed gas drainage and mining, in particular to an efficient flowback method of pulverized coal using a chemical detergent. The chemical detergent with high foaming quality and high coal-carrying capacity is prepared according to pulverized coal characteristics. An injection device good in simplicity and safety is invented; a safety injection measure and post-injection drainage and mining management method are formulated. Upon injection of the chemical detergent, an additional high-pressure pump is not required; pipeline connection allows thechemical detergent to flow into a casing annulus via self-gravity after tank pressure and casing annulus pressure are balanced. The chemical detergent is injected into the casing annulus; pulverized coal near a wellbore area and a pumping inlet is cleaned; foam generated by the chemical detergent is used to return the pulverized coal to the surface, so that pulverized coal cleaning and pump efficiency improving are achieved. The method herein is simple and feasible, good in safety and high in efficiency. In late coal-bed gas well drainage and mining, intermittent drainage and mining or reinjected water treatment is performed; the pulverized coal can be discharged to the surface with produced water, and pump jamming and other issues are avoided.

The invention relates to a frequency converting and energy saving device of an oil pumping machine in the technical field of electronic control. The device comprises a breaker, a frequency converter, a current transformer, an input reactor, a first contactor, a second contactor, a third contactor and a thermal relay, wherein an external power supply is connected with the breaker, after the external power supply is controlled by the breaker, the external power supply is divided into two paths of circuits through the current transformer, and one path of the circuit is a frequency conversion loop, while the other path of the circuit is a power frequency loop; the frequency conversion loop firstly passes through the input reactor and then enters the frequency converter through the third contactor, and after the frequency conversion loop is subjected to frequency conversion through the frequency converter, the frequency conversion loop enters the first contactor; the power frequency loop comprises the second contactor and the thermal relay which are connected in series; and the whole power frequency loop and the frequency conversion loop are connected in parallel. The frequency converter is added in a control cabinet of the oil pumping machine so as to improve the output and the pump efficiency of an oil well, compensate the power factor, avoid impacts to power grid equipment when a motor is started and realize arbitrary jig frequency regulation and segmental rotating speed control.

The invention provides an automatic exploitation measuring device and control method of a coal bed gas well. The measuring and control method is used for controlling a working fluid level by controlling the casing pressure of the coal bed gas well so as to stop the using of a traditional gas-liquid separator on the gas well field; requirements on gas production rate measurement can be satisfied by using a gas flowmeter; meanwhile, the liquid is separated from solid-phase coal powder and a gas after produced to the ground and before passing through a liquid flowmeter, thus the measuring accuracy is improved; the measurement is realized and the measuring accuracy is also increased while the liquid production rate is very small. A produced liquid measuring device, a produced gas measuring device and a control box provided by the invention are respectively mounted on a base bracket to form a highly integrated automatic exploitation measuring and control system of the coal bed gas well; therefore, the parameters are measured and field equipments on the well field are also simplified; the device is very simple and convenient to move, mount, operate, use and maintain; moreover, the invention also provides an optimized exploitation control method of a coal bed gas well.

The invention provides an improved calculating method of reasonable bottom hole flowing pressure. The method includes the steps of firstly, collecting the basic static and dynamic information of an oil reservoir so as to provide parameters for the calculating of the reasonable bottom hole flowing pressure; secondly, calculating the pressure at the opening of an oil well pump; thirdly, determining the relation between pump efficiency and submergence depth, and optimizing the reasonable submergence depth of a pumping well; fourthly, improving a shaft fluid column pressure calculating method on the basis of the reasonable submergence depth; fifthly, using the sum of the pressure at the opening of the oil well pump and shaft fluid column pressure as the reasonable bottom hole flowing pressure. The improved calculating method has the advantages that the reasonable bottom hole flowing pressure result calculated by the method can favorably bring oil well productivity into play and can favorably allow an extra-high-water-cut-stage oilfield to keep long-term stable yield or have slowed progressive yield decreasing.

The invention discloses a water-soluble friction-reducing additive for thick-oil wells, applied to thick-oil wells (with water content over 25 percent) for paraffin removal and viscosity reduction. The raw materials include (calculated by weight percent) A. fatty-acid polyoxyethylene (9) ester 2-10 percent; B. polyoxypropene polyoxy propylene propylene glycol ether 10-30 percent; C. polyether glycol SAA 5-15 percent; D. FC-N01 fluorocarbon surfactant 0.01-0.07 percent; E. water (the remainder). If the water-soluble friction-reducing additive is applied to thick-oil wells with water content over 25 percent, the paraffin is removed and the viscosity is reduced in the oil-well, the production cost is lowered and the output is increased. In addition, the water-soluble friction-reducing additive is also applicable to cold production and cold transportation of thick-oil well with medium/high water content. The water-soluble friction-reducing additive is inflammable, and capable to overcome the disadvantages of existing oil-well friction-reducing additives, such as oil-soluble and flammable.

The invention provides an oil soluble drag reduction agent which is applied to the exploitation in oil field and pour-viscosity reduction. The drag reduction agent is characterized in that the agent is made of compositions with the following weight percentage of: 1.5-3.0 percent of ZC-3180 pour point depressant; 2.0-3.5 percent of polyacrylic acid advanced C18-C24 mixed alcohol ester; 30-45 percent of crude benzene; 1.0-1.5 percent of polyethylene oxide octyl phenol ether; the rest is methanol. And the sum of the percent of the compositions is 100 percent. The oil soluble drag reduction agent has the effects that the requirement of the oil well single tube gathering process that the water content of the oil soluble drag reduction agent is less than 25 percent when the added amount is 50-100mg/l is satisfied, and the back pressure of the pipeline wellhead is lowered by 20-30 percent points.

The invention relates to a pump with politef or F46 coat and relative producing method, which solve the problem for plating politef inside the pump, with high producing cost. The thickness of politef or F46 inner coat (2) of pump flow section (a) is 0.1-50um. The producing method comprises: sintering the pump plated with politef or F46 coat in 280-350Deg. C for 2-4 hours. The invention has the advantages as thin coat and better resistance. It has simple process, smooth surface and small friction parameter.

The invention discloses an automatic underground sand bailing device and a sand bailing process thereof. According to the device, a steel wire rope is used for driving a sand bailing pump to move vertically for realizing automatic sand bailing. A rope guide wheel is coaxially provided with an angular displacement sensor for detecting the length of the steel wire rope. A fixed pulley base is provided with a load sensor for detecting the load of the steel wire rope. A sand loosening hammer and a valve plug of a sand inlet valve at the bottom of the sand bailing pump are of an integrated structure. The steel wire rope is connected with a rope ring on the top of a weighted piston rod, so as to drive a piston to move vertically in a walking cavity between the sand inlet valve and a sand carrying valve. When the piston moves downwards, the upper part of the walking cavity forms negative pressure, and sand carrying well fluid on the lower part of the walking cavity pushes to open a check valve in the piston and enters the upper part of the walking cavity. Before the piston touches the bottom dead centre while moving downward, the piston moves downward slowly so as not to impact a bottom dead centre. Before the piston touches the top dead centre while moving upward, the piston moves upward slowly so as not to impact the top dead centre. The automatic underground sand bailing device and the sand bailing process thereof have the advantages that simplicity and reliability are realized, the pump efficiency is high, the degree of automation is high, the piston is effectively prevented from impacting a top dead centre and the bottom dead centre, and the device and the process are particularly suitable for low-liquid level oil-water well sand bailing.

The invention provides an oil pumping device for an oil field rod pumped well, which can effectively prevent a sand sticking accident, reduce the liquid column load of a pumping unit, and improve the pump efficiency. In the oil pumping device, the pumping unit is connected with a sucker rod; the sucker rod penetrates through a Christmas tree fixed on the ground and is connected with an upper travelling valve of an oil well pump through a sucker rod connector; an oil tube is connected at the lower end of the Christmas tree; the oil well pump comprises the upper travelling valve, a plunger and a lower travelling valve which are sequentially connected from top to bottom in a pump cylinder. The oil pumping device is characterized in that the sucker rod is hollow, the pumping unit is connected with the hollow sucker rod sequentially through a polish rod and a tee-joint short connector; the tee-joint short connector is arranged above the Christmas tree, and the side outlet of the tee-joint short connector is connected with a flown line through a hose; the upper end of the pump cylinder is connected with the oil tube through an oil tube connector, and a fixed valve is arranged at the lower end of the pump cylinder.

An optical amplifier and a laser generator based on the fiber side-polished technology, having a high pumping efficiency, a low noise figure and a small footprint are provided in this application. The optical amplifier and the laser, which have a very long effective interaction length in conjunction with highly doped Erbium glass attached to its surface and an addition of a slanted fiber grating inscribed in the guiding core at the polished region can spatially separate the signal and pump power to simultaneously improve the pumping efficiency and optimize the penetrated depth of the signal evanescent-field. The spontaneous emission is kept from being amplified and therefore a high quality amplified signal is produced.

Methods and systems for reducing the possibility of heat pump evaporator fin freezing are described. Evaporator fin temperature is compared to a threshold temperature that varies with vehicle operating conditions. Actions to mitigate evaporator fin freezing may be taken if evaporator fin temperature is less than the threshold temperature.

The present invention provides alloy plating solution and corresponding treating process for producing oil well pump capable of resisting high temperature corrosion and high temperature wear, and with low cost and low power consumption. The alloy plating solution is compounded through dissolving nickel sulfate, amino acetic acid, amino borane, graphite fluoride, boric acid, sodium saccharin, lead ion, ammonia water and sodium hydroxide in the weight ratio of 3 to 2.5 to 0.45 to 0.6 to 3 to 0.3 to 0.003 to 0.35 to 0.15 in pure water of 90 weight portions. During plating, the alloy plating solution is heated to 40-60 deg.c, and the plating time is determined based on thickness to be plated.

This invention provides balance long impact oil extraction device, which comprises motor, automatic brake, decelerator input axis, decelerator, decelerator output axis and sheave parts on shell top platform, wherein, the drive rope is connected to hanging device and ring through drive rope fix device two end set inside sheave parts; the hanging rope and ring are connected through light bar and match parts; when sheave rotates, it drives rope and match drive rope for synchronous reverse movement.

A straight driving reciprocal rotary screw pump comprises a rotor, a stator, a pump base under the rotor, a fuel inlet valve (1) and a fuel outlet valve (2) on the pump base, and an universal coupler, a connecting axle (1), a connecting axle, (2), a screw couple, and a spline couple which are distributed from up to down. The universal coupler is connected with the upper end of the rotor, the universal couple is arranged with the pump base around, the pump base is disposed with the valve (2) and the valve (1), the screw couple comprises a screw axle, a screw muffle, a rotation ball block, and a ball, and the spline couple comprises a spline axle, a spline muffle, a ball block, and a spline ball. The invention has high producing efficiency and wide application.

A pump having anti-airlock provisions. The pump is comprised of a volute comprised of a volute wall, and an impeller comprising back vanes on a side of the impeller that is proximate to the volute wall, with the back vanes having a length extending radially outwardly along the impeller. A bleed hole is formed in the volute wall in communication with the portion of the volute between the back vanes and the volute wall, and the exterior of the volute, such that the bleed hole is located midway along the length of the back vanes. When the pump is operating with air, liquid, or a combination of air and liquid in the volute, the bleed hole is under positive pressure with respect to the exterior of the volute. The bleed hole may be in communication with the exterior of the volute through a lateral tunnel formed in the pump.

The invention discloses a deflection volumetric high-pressure water pump. The deflection volumetric high-pressure water pump comprises a pump body and a rotor installed in the pump body through an eccentric shaft. The pump body is provided with a water inlet and a water outlet. The edge of the rotor is tangential to the inner wall of a working cavity of the pump body. The parts, located on the two sides of the rotor, of the eccentric shaft are provided with side plates symmetrically. A sliding key sliding groove is formed in the upper end of the inner wall of the working cavity of the pump body, and arc-shaped grooves are symmetrically formed in the sliding key sliding groove. Arched rotation blocks are arranged in the arc-shaped grooves correspondingly. A positioning sliding key is inserted between the two rotation blocks. The lower end of the positioning sliding key is in a shaft shape and is inserted into a positioning hole formed in the upper end of the rotor through clearance fit. The working cavity is divided into a high-pressure zone and a low-pressure zone through the positioning sliding key and the rotor. An oil filling hole is formed in the pump body in the radial direction. An oil filling channel is formed in the positioning sliding key. The deflection volumetric high-pressure water pump has the beneficial effects that the volume of the working cavity of the pump body can be fully used, the efficiency of the water pump can be effectively improved, machining, oil filling and lubricating are facilitated, the lubricating effect is good, the mechanical abrasion is small, and the service life is long.

The invention discloses a technology of screen pipe completion and cross oil layer cementing for a steam injection heavy oil well. The technology comprises the following steps: A, downing a completion tube string to a design position; B, downing a cementing tube string to a preset position in the completion tube string; C, suppressing, expanding and sealing a lower high-temperature-resistant packer (7); D, suppressing, expanding and sealing an upper high-temperature-resistant packer (4), boosting and turning on a cement pouring device (3), well flushing with direct cycle; E, performing one-stage cement pouring operation to the bottom of a thermosensitive screen pipe (6); F, performing two-stage cement pouring operation to the top of the thermosensitive screen pipe (6), well flushing with back cycle; and G drawing the cementing tube string, and finishing the well cementation operation. The technology of screen pipe completion and cross oil layer cementing for the steam injection heavy oil well has the advantages that oil layer crossing is achieved, the completion tube string and the cementing tube string are put underwater once and the bottom earth layer on the top of the oil layer, the technical problems existing in the screen pipe completion of heavy oil reservoir that oil flow passages of the screen pipe are jammed by shale hydration and bottom water breaks through a flooded shaft are solved, application range of the screen pipe completion in the heavy oil reservoir is expanded, and exploitation rate of an oil well is increased.