WO2016107591A1 - Procédé pour pompage de pétrole à commande automatique, numérisé, à puissance équilibrée, et robot de pompage de pétrole - Google Patents

Procédé pour pompage de pétrole à commande automatique, numérisé, à puissance équilibrée, et robot de pompage de pétrole Download PDF

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Publication number
WO2016107591A1
WO2016107591A1 PCT/CN2015/100031 CN2015100031W WO2016107591A1 WO 2016107591 A1 WO2016107591 A1 WO 2016107591A1 CN 2015100031 W CN2015100031 W CN 2015100031W WO 2016107591 A1 WO2016107591 A1 WO 2016107591A1
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WIPO (PCT)
Prior art keywords
balance
value
average
stroke
power
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PCT/CN2015/100031
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English (en)
Chinese (zh)
Inventor
高长乐
于胜存
李宁会
王康军
马述俭
吉效科
朱加强
章敬
林泉
董宏宇
Original Assignee
新疆维吾尔自治区第三机床厂
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Publication of WO2016107591A1 publication Critical patent/WO2016107591A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • E21B43/127—Adaptations of walking-beam pump systems

Definitions

  • the invention relates to the technical field of a beam pumping unit, and relates to a power balance digital automatic control oil pumping method and a oil extraction robot.
  • the existing beam pumping units mainly include: conventional beam pumping unit, front type beam pumping unit, offset type beam pumping unit and profiled beam pumping unit.
  • the beam pumping unit generally includes a boring head, a beam, a bracket, a connecting rod, a base, a crank, a balancing device, a speed reducer, a brake, a motor and a suspension rope, and a bracket, a speed reducer and a brake are fixedly mounted on the base.
  • the beam is hinged on the bracket, the crank is fixedly mounted on the output shaft of the reducer, one end of the connecting rod is hinged on the crank, and the other end of the connecting rod is hinged on the beam, thus forming a four-bar linkage
  • the mechanism is installed at the front end of the beam, the suspension rope is mounted on the hoe, the balance device is mounted on the crank, or/and the balance device is mounted on the beam, and the balance torque is changed by manually adding or subtracting the weight of the weight.
  • the existing beam pumping unit has two significant shortcomings: First, can not automatically adjust the balance, and balance Need to be based on changes in well load and If adjustment is made, if the balance ratio is too low, the working condition of the pumping unit will deteriorate and the power consumption will increase. Secondly, the pumping capacity of the pumping unit will often be higher or lower than the oil production of the oil well. If the pumping unit is too fast, the pumping capacity will be higher than that of the oil well, causing air pumping and liquid hammering, damage to the pumping unit, sucker rod, and oil pump, reducing service life and wasting energy. If the pumping unit is too slow, the pumping capacity will be lower than that of the oil well and the oil well production will be reduced.
  • the invention provides a power balance digital automatic control oil pumping method and a oil extraction robot, which overcomes the above-mentioned deficiencies of the prior art, and can effectively solve the problem that the existing beam pumping unit cannot automatically adjust the balance and cannot automatically adjust the punching time.
  • the result is a low balance rate, a mismatch between the punching and the oil production of the oil well, which causes the pumping unit to be prone to failure, and the oil well is difficult to achieve the maximum production capacity and high production cost.
  • a power balance digital automatic control pumping method including a production robot including a main motor, a beam, a balance boom, a crank and a suspension rope.
  • a balance boom is fixedly mounted on the left end of the beam, and a mobile weight box and a driving device capable of moving the weight box to the left and right are respectively mounted on the balance boom, and a stroke process measuring device is installed on the oil recovery robot, and is suspended.
  • a load sensor is fixedly mounted on the rope; further comprising a central processing unit and a three-phase electric parameter collecting device, wherein the three-phase electric parameter collecting device is installed on the power input end; the method is performed as follows:
  • the second step by setting the number of strokes to give N times N power balance value H2, the balance of N power value H2 arithmetically averaged average power balance H2 average, then the comparison process, the power balance
  • the lower limit setting value is A21, and the power balance adjustment target lower limit setting value is A22;
  • the average value is less than A21 and H2 in P is less than the power P underbalanced condition, when the pan so that the mobile moves to the left by the drive means, so that the power balance of an average of the average H2 A22 ⁇ H2 Average
  • H2 and the average value is less than A21 P P is greater than the power overbalanced condition, when the pan so that the mobile device moves to the right by the drive, so that the power balance of an average of the average H2 A22 ⁇ H2 Average .
  • the data collected by the stroke process measuring device and the three-phase electric parameter collecting device are respectively transmitted to the central processor, and the central processor processes the collected current value during each stroke to find out the lower stroke.
  • H1 is greater than the average current through B11 equilibrium state, so at this time by the mobile drive unit moves to the right the pan so that the current balance of the average of the average value H1 A12 ⁇ H1 average ⁇ B12.
  • the above-mentioned inverter is installed between the main motor and the power supply input end, and a load sensor is fixedly mounted on the suspension rope for collecting the suspension point load value F, and a stroke process measuring device is installed on the oil recovery robot for collecting the suspension point displacement value S.
  • the central processor analyzes and calculates the ground dynamometer according to the collected suspended point load value F and the suspended point displacement value S, and the ordinate is the suspended point load of the polished rod during the pumping process.
  • the coordinate of the value F, the abscissa is the coordinate of the suspension point displacement value S of the polished rod during the pumping process
  • N pump fullness values H3 are obtained N times according to the set stroke times, and N pump fullness values H3 are arithmetically averaged to obtain a pump fullness average H3 average , and then comparison processing is performed, and the pump fullness lower limit setting value is obtained.
  • the pump fullness adjustment target lower limit set value is A32
  • the pump fullness upper limit set value is B31;
  • the average is greater than H3 B31, slow state of stroke, stroke frequency at this time is increased by raising the main drive motor speed, the pump fullness H3 average mean average of A32 ⁇ H3 ⁇ B31 .
  • the above A11 value is from 0.8 to 0.85, the A12 value is from 0.9 to 0.95, the B11 value is from 1.10 to 1.15, the B12 value is from 1.0 to 1.05; or/and, the A21 value is from 0.5 to 0.6, and the A22 value is from 0.80 to 0.90; or/and
  • the A31 value is from 0.5 to 0.6, the A32 value is from 0.75 to 0.85, and the B31 value is from 0.85 to 0.95.
  • the set number of strokes N is set a number of times; or / and, the stroke process measuring device is an angular displacement sensor mounted on the beam or a proximity switch fixedly mounted on the crank or mounted on the suspension rope.
  • the suspension point displacement detecting sensor; or / and, the three-phase electric parameter collecting device is an electric parameter dynamic balance tester or a current transformer.
  • an oil extraction robot including a main motor, a speed reducer, a crank, a connecting rod, a beam, a balance boom, a bracket, a hoe, a base, a brake device, and a suspension.
  • Rope and stroke process measuring device fixed main motor, reducer, brake device and bracket are fixed on the base, and the beam that can swing up and down is hinged to the top of the bracket through the middle beam support, and the power output of the reducer A crank is mounted on the shaft, and the lower end of the connecting rod is hinged with the crank.
  • the upper end of the connecting rod is hinged to the left part of the beam, and the right end of the beam is fixedly mounted with a hammer and a hammer.
  • a suspension crane is installed, a balance boom is fixedly mounted on the left end of the beam, a fixed weight box is fixedly mounted on the left side of the balance boom, and a mobile weight box is mounted on the balance boom, and the mobile type can be equipped.
  • a drive that moves the heavy box to the left or right.
  • the driving device comprises a reducer with a balance motor, a lead screw and a nut.
  • the reducer with a balance motor is fixedly mounted on the balance boom, and a screw bearing seat is fixedly mounted at one end of the balance boom, and the balance boom is fixed.
  • the other end is fixedly mounted with a lead screw auxiliary bearing seat.
  • the two ends of the lead screw are respectively installed in the screw bearing seat and the screw auxiliary bearing seat, and one end of the screw passes through the power output end of the coupling and the reducer with the balance motor.
  • the threaded mother is mounted on the lead screw
  • the mobile weight box is saddle-shaped
  • the middle part has a through slot
  • the lead screw passes through the through slot of the mobile weight box, and is fixedly mounted on the mobile weight box.
  • the wire mother is installed in the cross-shaped groove and can float up and down, and the outer cover of the fixed block is fixedly mounted with a cover plate capable of blocking the silk mother.
  • a slide rail is arranged on the boom, and a roller is arranged on the inner side of the mobile weight box, and the roller is located on the slide rail; or/and a safety limit device is installed on the balance boom and the mobile weight box, the safety limit position Device includes Induction plate, downstroke sensing switch and upstroke sensing switch; or / and, the stroke process measuring device is an angular displacement sensor mounted on the beam or a proximity switch fixedly mounted on the crank or mounted on the suspension cable Suspension displacement detecting sensor; mobile weighing box includes moving box and movable weight; fixing partition in moving box and dividing moving box into fixed weight chamber and movable weight chamber, filling in fixed weight chamber There is a fixed weight, a movable weight is installed in the movable weight chamber, and a safety bar that can block the movable weight is fixedly mounted on the moving box; or/and the fixed weight box includes a fixed box and an active match.
  • the weight is fixed in the fixed box with the partition plate and the fixed box is divided into a fixed weight chamber and a movable weight chamber, and the fixed weight chamber is filled with a fixed weight, and the movable weight is installed in the movable weight chamber.
  • the weight is fixedly fixed on the fixed box with a safety bar that can block the movable weight.
  • the above-mentioned suspension device includes a suspension body, a load sensor and a suspension rope; and a load sensor is mounted on the suspension body.
  • the digital control cabinet is fixedly mounted on the base, and a central processing unit, a communication module, a power module, a display module, a power module, a three-phase electric parameter collecting device, a control panel, a start-stop control relay, and a fixed control unit are fixedly mounted in the digital control cabinet.
  • Inverter main motor variable frequency AC contactor, main motor power frequency AC contactor, motor integrated protector, balance control relay, balance motor AC contactor and current transmitter; load sensor signal output through load sensor cable And the lower connecting cable is electrically connected to the first signal input end of the central processing unit, and the signal output end of the stroke process measuring device is electrically connected to the second signal input end of the central processing unit through the movable cable and the lower connecting cable,
  • a current transmitter is installed on the power input line of the reducer with the balance motor, and the signal output end of the current transmitter and the third signal input end of the central processing unit are electrically connected by wires, the downstroke sensing switch and the upstroke
  • the signal output of the inductive switch passes through the upper connecting cable, the active cable and the lower connecting cable
  • the fourth signal input end of the central processing unit is electrically connected together, and the signal output ends of the downstroke sensing switch and the upstroke sensing switch are electrically connected to the signal input end of the balance control relay through the upper connecting cable, the movable cable and the lower connecting cable
  • the central processor The second signal output end and the signal input end of the start-stop control relay are electrically connected together by a wire, and the signal output end of the start-stop control relay and the signal input end of the main motor power frequency AC contactor are electrically connected by a wire, the main The output of the motor power frequency AC contactor and the input end of the main motor pass The wires are electrically connected together, and the signal output end of the start-stop control relay and the signal input end of the main motor variable frequency AC contactor are electrically connected together through a wire, and the
  • the above-mentioned four-head or hexagonal head is fixed at the left end of the power output shaft of the reducer with a balance motor, and the rocker support seat is fixedly mounted on the fixed weight box; or/and a pulley quick change device is mounted on the base, and the pulley is fast
  • the lower end of the changing device is hinged on the base, and the main motor is fixedly mounted on the upper end surface of the pulley quick change device, the support rod is hinged on the bracket, and the hinge joint corresponding to the support rod is arranged on the beam; or/and, at the base
  • the left part is fixedly equipped with a buffer device; or/and, the three-phase electric parameter collecting device is an electric parameter dynamic balance tester or a current transformer.
  • the invention has the advantages of reasonable and compact structure and convenient use, and is matched by the main motor, the reducer, the connecting rod, the beam, the bracket, the hoe, the suspension rope, the load sensor, the angular displacement sensor, the safety limit device and the digital control cabinet. It not only makes the mobile weight box move left and right on the balance boom, automatically balances the suspension load under various working conditions, and automatically adjusts the pumping stroke according to the change of the pump fullness, which is safe and reliable, and convenient. The operation has fully utilized the oil well production, improved the balance rate, and achieved energy saving.
  • FIG. 1 is a schematic front view showing the structure of a second embodiment of the present invention.
  • Embodiment 2 is a front perspective enlarged structural view of a balance boom in Embodiment 2 of the present invention.
  • FIG 3 is a schematic enlarged view of the A-direction of the mobile weight box according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic view showing an A-direction enlarged structure of a mobile weight box without a cover plate according to Embodiment 2 of the present invention.
  • Figure 5 is a schematic diagram of circuit control according to Embodiment 2 of the present invention.
  • Figure 6 is a diagram showing the power of the present invention in a state where the punching is too fast.
  • Figure 7 is a diagram showing the power of the present invention in an appropriate state.
  • Figure 8 is a diagram showing the power of the present invention in a state where the punching is too slow.
  • Figure 9 is an electrical parameter curve of the power underbalanced state and the current underbalanced state of the present invention.
  • Figure 10 is an electrical parameter curve of the power balance state and the current balance state of the present invention.
  • Figure 11 is an electrical parameter curve of the power overbalance state and the current overbalance state of the present invention.
  • the codes in the drawings are: 1 for the suspension, 2 for the hoe, 3 for the beam, 4 for the beam support, 5 for the bracket, 6 for the connecting rod, 7 for the balance boom, 8 for the reducer , 9 is the crank, 10 is the hand crank, 11 is the buffer device, 12 is the base, 13 is the brake device, 14 is the digital control cabinet, 15 is the main motor, 16 is the angular displacement sensor, 17 is the load sensor, 18 is the load Sensor cable, 19 is the active cable, 20 is the upper connecting cable, 21 is the lower connecting cable, 22 is the square head, 23 is the reducer with balance motor, 24 is the coupling, 25 is the screw bearing seat, 26 is Screw, 27 is the slide rail, 28 is the mobile weight box, 29 is the thread mother, 30 is the fixed block, 31 is the cover plate, 32 is the fastening bolt, 33 is the screw auxiliary bearing seat, 34 is the upper stroke induction switch 35 is the induction plate, 36 is the active weight, 37 is the safety bar, 38 is the lower stroke sensor switch, 39 is the
  • the power balance digital automatic control pumping method includes a production robot including a main motor 15, a beam 3, a balance boom 7, a crank 9 and a suspension Rope 1, on the left of the beam 3
  • a balance boom 7 is fixedly mounted on the end, and a mobile weight box 28 and a driving device capable of moving the mobile weight box 28 to the left and right are respectively mounted on the balance boom 7, and a stroke process measuring device is mounted on the oil recovery robot.
  • a load sensor 17 is fixedly mounted on the rope 1; a central processor and a three-phase electric parameter collecting device are also installed, and the three-phase electric parameter collecting device is installed on the power input end; the method is performed as follows:
  • the second step by setting the number of strokes to give N times N power balance value H2, the balance of N power value H2 arithmetically averaged average power balance H2 average, then the comparison process, the power balance
  • the lower limit setting value is A21, and the power balance adjustment target lower limit setting value is A22;
  • the average value is less than A21 and H2 in P is less than the power P underbalanced condition, when the pan so that the mobile moves to the left by the drive means, so that the power balance of an average of the average H2 A22 ⁇ H2 Average
  • H2 and the average value is less than A21 P P is greater than the power overbalanced condition, when the pan so that the mobile device moves to the right by the drive, so that the power balance of an average of the average H2 A22 ⁇ H2 Average .
  • the current and voltage during the stroke are collected by the three-phase electric parameter collecting device. After the acquisition, three state diagrams can be obtained, respectively, and the electrical parameter curves of the power underbalanced state and the current underbalanced state are as shown in FIG.
  • the electric parameter curves of the power balance state and the current balance state are as shown in Fig. 10 and the electric parameter curves of the power overbalance state and the current overbalance state are as shown in Fig. 11.
  • the data collected by the stroke process measurer and the three-phase electrical parameter acquisition device are respectively transmitted to the central processor, and the central processor collects the collected data during each stroke.
  • H1 is greater than the average current through B11 equilibrium state, so at this time by the mobile drive unit moves to the right the pan so that the current balance of the average of the average value H1 A12 ⁇ H1 average ⁇ B12.
  • the current and voltage during the stroke are collected by the three-phase electric parameter collecting device. After the acquisition, three state diagrams can be obtained, respectively, and the electrical parameter curves of the power underbalanced state and the current underbalanced state are as shown in FIG.
  • the electric parameter curves of the power balance state and the current balance state are as shown in Fig. 10, and the electric parameter curves of the power overbalance state and the current overbalance state are as shown in Fig. 11.
  • a frequency converter is mounted between the main motor 15 and the power supply input end, and a load sensor 17 is fixedly mounted on the suspension rope 1 for collecting the suspended point load value F on the oil recovery robot.
  • Installed with stroke process measuring device The suspension point displacement value S is collected; during each stroke, the central processing unit analyzes and calculates the grounding power diagram according to the collected suspension point load value F and the suspension point displacement value S, and the ordinate is the polished rod.
  • N pump fullness values H3 are obtained N times according to the set stroke times, and N pump fullness values H3 are arithmetically averaged to obtain a pump fullness average H3 average , and then comparison processing is performed, and the pump fullness lower limit setting value is obtained.
  • the pump fullness adjustment target lower limit set value is A32
  • the pump fullness upper limit set value is B31;
  • the average is greater than H3 B31, slow state of stroke, stroke frequency at this time is increased by raising the main drive motor speed, the pump fullness H3 average mean average of A32 ⁇ H3 ⁇ B31 .
  • the suspension point displacement during the stroke is collected by the stroke process measuring device, and the suspension point load during the stroke is collected by the load sensor, and the collected data is processed by the central processor to obtain three state diagrams, respectively
  • the dynamometer in the state of being too fast is as shown in FIG. 6, and the dynamometer in the appropriate state is as shown in FIG. 7, and the dynamometer in the state of being too slow is shown in FIG. .
  • the A11 value is 0.8 to 0.85, the A12 value is 0.9 to 0.95, the B11 value is 1.10 to 1.15, the B12 value is 1.0 to 1.05; or / and, the A21 value is 0.5 to 0.6, and the A22 value is 0.80 to 0.90; / and, the A31 value is 0.5 to 0.6, the A32 value is 0.75 to 0.85, and the B31 value is 0.85 to 0.95.
  • the dynamic balance tester transmits the data to the central processing unit to obtain a power balance degree H2 and a current balance degree H1.
  • the pumping stroke number N of the present invention is a set number of times as needed; or/and, the stroke process measuring device is an angular displacement sensor 16 mounted on the beam 3 or a proximity switch fixedly mounted on the crank 9. Or a suspension point displacement detecting sensor mounted on the suspension rope 1; or/and, the three-phase electrical parameter collecting device is an electrical parameter dynamic balance tester or a current transformer.
  • the calculation and analysis of the pump fullness H3 requires the stroke value S1 of the upper stroke pump and the effective stroke value S2 of the downstroke pump.
  • the exact values of S1 and S2 should be obtained from the pump diagram.
  • the pump is installed at the lower end of the tubing. Production practice It is often several hundred or even several kilometers deep from the ground. It is difficult to directly obtain the dynamometer of the pump. Therefore, the ground power map is usually used to obtain approximate S1 and S2 values.
  • the ground dynamometer is a closed curve composed of a suspension point displacement S and a corresponding suspension point load F of a pumping cycle (including a complete upper stroke and a lower stroke), the abscissa is the suspension point displacement S, and the ordinate is the suspension point. Load F.
  • the stroke process measurer and the load sensor respectively convert the directly measured suspended point displacement S and the suspended point load F to the digital power through the conversion module in the central processor, and the central processor simultaneously collects the suspension point displacement at equal time intervals.
  • S and the corresponding digital power of the suspended point load F form a series of point data
  • the software logic recognizes all the point data of S and F of a complete pumping cycle, and obtains the ground power map through the processing of the graphics software, such as As shown in Figures 6, 7, and 8, the approximate value of the pump stroke S1 during the upstroke and the approximate value of the pump effective stroke S2 during the downstroke can be calculated by the dynamometer data point scan search.
  • the efficiency of the pumping well system can be calculated by the central processing unit or the upper station control computer, and the efficiency of the pumping unit system can be calculated by the following two methods:
  • the pumping well system efficiency ⁇ system is the ratio of the effective work of lifting the downhole liquid to the ground and the input energy of the pumping well system. That is, the ratio of the effective power P e of the pumping well to the input power P i :
  • the effective power of the oil well is the power required to lift the downhole oil to the ground, kW.
  • P e is the effective power of the pumping well, kW; Q is actually the actual daily oil production of the well, which can be obtained by the single well metering device or the production statistics of the oil production plant, m 3 /d; H is the effective lift, which can be moved by the oil well
  • the effective lift H is calculated according to the following formula:
  • H d is the oil well surface depth, which can be measured by the oil well dynamic surface echo device, m;
  • P o is the wellhead oil pressure, which can be provided by digital pressure gauge measurement or production data of the oil production plant, Mpa;
  • P t is the wellhead casing pressure, which can be digitized Pressure gauge measurement or production data from the production plant, Mpa; / is the division number.
  • ⁇ ground is the ground efficiency, %;
  • ⁇ underground is the underground efficiency, %;
  • ground efficiency
  • the P -beam is the polished rod power, kW;
  • P light bar S work ⁇ n / 60 type (7)
  • S is a reactive surface area of the indicator diagram, kN. m; n is the pumping stroke, n / min.
  • Pump efficiency ⁇ pump efficiency of the present invention may be a central processing station or host computer control, pump efficiency is the ratio of the theoretical amount of actual liquid discharge pumping fluid production wells of the pump Q Q actual theory.
  • ⁇ pump efficiency is pump efficiency, %; / is the division number; Q is actually the actual daily production liquid volume of the oil well, which can be obtained by single well metering device measurement or production statistics data of the oil production plant, m 3 /d; Q theory is The theoretical pump discharge volume, m 3 /d;
  • the efficiency of the pumping well system is the main indicator for measuring the energy consumption and working condition of the oil well.
  • the efficiency of the pumping well system is generally low, only about 20%, and the production management level and cost efficiency of the oilfield need to be improved.
  • Adopting effective energy-saving measures to improve the efficiency of the pumping well system can reduce the power consumption of the pumping liquid, increase the input-output ratio, and prolong the service life of the machine, rod and pump, and obtain higher economic benefits.
  • the pump efficiency is the ratio of the actual liquid production volume of the pumping well to the theoretical drainage volume of the pump. Increasing the pump efficiency means that the oil production per unit time increases when the oil supply capacity of the oil well is sufficient, and the efficiency of the pumping well system can be effectively improved and the energy consumption can be reduced. .
  • the oil collecting robot includes a main motor 15, a speed reducer 8, a crank 9, a connecting rod 6, a beam 3, a balance boom 7, a bracket 5, and a hammer 2.
  • the base 12, the brake device 13, the suspension rope 1 and the stroke process measuring device; the main motor 15, the speed reducer 8, the brake device 13 and the bracket 5 are fixedly mounted on the base 12, and the beam 3 capable of swinging up and down passes through the middle portion
  • the beam support 4 is hinged at the top end of the bracket 5, and a crank 9 is mounted on the power output shaft of the speed reducer 8.
  • the lower end of the link 6 is hinged with the crank 9, and the upper end of the link 6 is hinged to the beam 3.
  • the right end of the beam 3 is fixedly mounted with a hoe 2, and the sling 2 is mounted on the hoe 2, and a balance jib 7 is fixedly mounted on the left end of the beam 3, and is fixedly mounted on the left side of the balance jib 7.
  • the driving device comprises a speed reducer 23 with a balancing motor, a lead screw 26 and a nut 29, and a speed reducer 23 with a balancing motor is fixedly mounted on the balancing boom 7, in balance
  • a screw bearing housing 25 is fixedly mounted on one end of the boom 7
  • a screw auxiliary bearing seat 33 is fixedly mounted on the other end of the balancing boom 7 .
  • the two ends of the screw 26 are respectively mounted on the screw bearing housing 25 and the screw assisting In the bearing housing 33, one end of the lead screw 26 is fixedly mounted to the power output end of the speed reducer 23 with the balance motor through the coupling 24, and the thread nut 29 is mounted on the lead screw 26, and the mobile weight box 28 is saddle.
  • the lead screw 26 passes through the through slot of the mobile weight box 28, and four fixed blocks 30 are fixedly mounted on the mobile weight box 28, and a cross pass is formed between the four fixed blocks 30.
  • the slot and the nut 29 are mounted in the cross-shaped groove and can be floated up and down, left and right, and a cover 31 capable of blocking the nut is fixedly attached to the outer end of the fixed block 30, and a slide rail 27 is disposed on the balance boom 7 to move
  • the inside of the type weight box 28 is mounted with a roller 41, and the roller 41 is located on the slide rail 27; or / and, in balance
  • the safety limit device is mounted on the arm 7 and the mobile weight box 28, and the safety limit device includes an induction plate 35, a down stroke sensing switch 38 and an upstroke sensing switch 34; or/and, the stroke process measuring device is installed in the swim
  • the angular displacement sensor 16 on the beam 3 is either a proximity switch fixedly mounted on the crank 9 or a suspension point displacement detecting sensor mounted on the suspension rope
  • a safety lever 37 that can block the movable weight 36 is fixedly mounted.
  • a moving box buffer block 39 is fixedly mounted on the upper end of the right end of the fixed weight box, and a stopper 40 is fixedly mounted on the lower end of the right end of the fixed weight box.
  • the reducer 23 with the balance motor rotates forward or reverse
  • the coupling 24 drives the screw 26 to rotate
  • the nut 29 drives the mobile weight box 28 to move left and right on the balance boom 7, thereby balancing the twitching process.
  • Four rollers 41 are mounted on the inner side of the mobile weight box 28 to better support and guide.
  • the induction plate 35 on the weight box approaches the upper stroke sensing switch 34 or the lower stroke sensing switch.
  • the lower stroke sensing switch or the upper stroke sensing switch issues a limit stop signal, and the speed reducer 23 with the balance motor is stopped by the central processing unit, the balance adjustment control relay, and the balance motor AC contactor, so that the mobile weight box 28 is stopped. Stop moving; the upper stroke sensing switch 34 and the lower stroke sensing switch 38 cooperate with the sensing plate 35 for the limit protection of the left and right strokes of the mobile weight box 28; the crank 9 is provided with three crank pin holes for adjusting the stroke .
  • a cover 31 capable of blocking the nut 29 can be fixedly attached by a fastening bolt 32.
  • the fixed weight 42 may be a conventionally known material such as a composite concrete, and functions to reduce the manufacturing cost while satisfying the weight.
  • the bumper lever 37 functions to protect the movable weight 36 from falling during the operation; the number of the movable weights 36 in the movable weight chamber of the moving box and the fixed box is adjusted to be coarse; By adjusting the balance, the balance is precisely adjusted by changing the position of the mobile weight box 28. By adjusting the number of the movable weights 36 and changing the position of the mobile weight box 28, the oil recovery robot is easy to balance and maintain balance. .
  • the suspension 1 includes a suspension body, a load sensor 17, and a suspension rope; and a load sensor 17 is mounted on the suspension body.
  • a digital control cabinet 14 is fixedly mounted on the base 12, and a central processing unit, a communication module, a power module, a display module, a power module, and a three-phase electrical parameter collection are fixedly mounted in the digital control cabinet 14.
  • the signal output of the sensor 17 is electrically coupled to the first signal input of the central processor via the load sensor cable 18 and the lower connection cable 21, and the signal output of the stroke process measurer is passed through the active cable 19 and the lower connection cable 21
  • the second signal input end of the central processing unit is electrically connected together, and a current transmitter, a signal output end of the current transmitter and a third signal of the central processing unit are mounted on the power input line of the speed reducer 23 with the balance motor
  • the input ends are electrically connected together by wires, and the signal output ends of the downstroke sensing switch and the upstroke sensing switch pass through the upper connecting cable 20
  • the movable cable 19 and the lower connecting cable 21 are electrically connected to the fourth signal input end of the central processing unit, and the signal output ends of the lower stroke sensing switch and the upper stroke sensing switch are passed through the upper connecting cable 20, the
  • the 21 is electrically connected with the signal input end of the balance control relay, and the first signal output end of the central processing unit and the signal input end of the balance control relay are electrically connected together through a wire, and the signal output end of the balance control relay is balanced and balanced.
  • the signal input terminals of the motor AC contactor are electrically connected together through a wire, and the output end of the balance motor AC contactor and the input end of the balance motor are electrically connected by wires, balancing the output of the motor AC contactor and the current transmitter.
  • the signal input ends are electrically connected together by wires, and the second signal output end of the central processing unit and the signal input end of the start/stop control relay are electrically connected through the wires, and the signal output end of the start-stop control relay and the main motor power frequency AC contact
  • the signal input terminals of the device are electrically connected together by wires, and the main motor is frequency-frequency AC contact.
  • the output end of the device and the input end of the main motor 15 are electrically connected together through a wire.
  • the signal output end of the start-stop control relay and the signal input end of the main motor variable frequency AC contactor are electrically connected together through a wire, and the main motor variable frequency AC contactor
  • the output and the input of the main motor 15 are electrically connected together by wires.
  • a square head 22 or a hexagonal head is fixed to the left end of the power output shaft of the speed reducer 23 with a balance motor, and a rocker support seat 43 is fixedly mounted on the fixed weight box 44; or/and, the base 12 is mounted thereon.
  • the pulley wheel quick change device the lower end of the pulley quick change device is hinged on the base 12, and the main motor 15 is fixedly mounted on the upper end surface of the pulley quick change device, the support rod is hinged on the bracket 5, and the corresponding support rod is arranged on the beam 3.
  • the hinge seat; or/and, the buffer device 11 is fixedly mounted on the left portion of the base 12; or/and, the three-phase electrical parameter acquisition device is an electrical parameter dynamic balance tester or a current transformer.
  • the hand crank 10 or the wrench can be manually rotated to rotate the square head 22 or the hexagonal head to make the reducer with the balance motor.
  • 23 is rotated in the forward or reverse direction, and the movable weight box 28 is moved to the left and right on the balance boom 7 by the lead screw 26.
  • Buffer device 11 After the suspension point loss occurs in the present invention, the left end of the balance boom 7 hits the shock absorber 11 to release the impact energy, thereby effectively protecting the reducer 8 and the main motor 15 and the like.
  • the load cell 17, the angular displacement sensor 16 and the speed reducer 23 with the balancing motor are connected to the digital control cabinet 14 via a load-sensing cable 18, a movable cable 19, an upper connecting cable 20 and a lower connecting cable 21 via a joint that can be quickly connected.
  • the movable cable 19, the upper connecting cable 20 and the lower connecting cable 21 between the beam 3 and the bracket 5 are connected together by a joint that can be quickly connected, and the joint connecting the movable cable 19 and the lower connecting cable 21 is upward, Reduce bending damage to the joint, extend the life of the active cable, and facilitate replacement.
  • the present invention adopts a mobile automatic balance adjustment structure, and adjusts the balance by adjusting the position of the movable weight box 28 by adjusting the balance of the movable weights 36 in the movable weight chamber of the moving box and the fixed box.
  • the combination of the two makes it easier for the pumping unit to achieve the balance adjustment required for different suspension loads under various working conditions.
  • the balance ratio can be improved, the pumping unit can be protected and the production cost can be reduced.
  • the mobile weighting box 28 can be moved by the hand crank 10, even if the speed reducer 23 with the balance motor is damaged, the power supply circuit of the speed reducer 23 with the balance motor is damaged, the communication is interrupted, and the balance can be manually adjusted by hand to make the oil pumping The machine continues to be used, there is no safety hazard, and it will not cause the stoppage to affect the output.
  • the buffer device 11 is fixedly mounted on the left portion of the base 12. After the suspension point is lost, the left end of the balance boom 7 hits the shock absorber 11 to release the impact energy, thereby effectively protecting the reducer and the main motor 15 and the like, thereby solving the balance of the beam. The safety protection problem of the pumping unit after the suspension point is lost.

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  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
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  • General Life Sciences & Earth Sciences (AREA)
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  • Control Of Electric Motors In General (AREA)

Abstract

La présente invention concerne un procédé pour pompage de pétrole à commande automatique, numérisé, à puissance équilibrée, et un robot de pompage de pétrole. Ladite invention comprend un moteur principal (15), un décélérateur (8), une manivelle (9), une bielle (6), un balancier (3), un bras d'équilibrage (7), une tour de forage (5), un contrepoids (2), une base (12), un équipement de freinage (13), un câble de forage (1), un capteur de charge (17), un dispositif de mesure de course, un dispositif d'arrêt de sécurité, et un boîtier de commande numérique (14). L'invention concerne également un robot de pompage de pétrole. Le présent procédé est sûr et fiable et permet le réglage auto-optimisé de pompe d'équilibre et de course, optimisant ainsi la production de puits de pétrole, améliorant le rendement de système de pompe, permettant une intégration sans problème avec des réseaux informatiques de champ pétrolifère, la distribution de données à distance et la commande à distance, un fonctionnement simplifié, une commodité, des économies d'énergie et de main d'œuvre, et un meilleur rendement économique.
PCT/CN2015/100031 2014-12-31 2015-12-31 Procédé pour pompage de pétrole à commande automatique, numérisé, à puissance équilibrée, et robot de pompage de pétrole WO2016107591A1 (fr)

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CN201410852567.1A CN104612631B (zh) 2014-12-31 2014-12-31 功率平衡数字化自动控制抽油方法和采油机器人

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CN111946329A (zh) * 2020-09-08 2020-11-17 中国石油天然气股份有限公司 一种油井动液面求取方法
CN112031748A (zh) * 2020-09-14 2020-12-04 南京富岛信息工程有限公司 一种基于示功图特征的抽油机井异常工况诊断方法
CN113153227A (zh) * 2021-04-01 2021-07-23 中油智采(天津)科技有限公司 一种对称均相位调控多井抽油机
CN113266318A (zh) * 2021-05-28 2021-08-17 陕西埃菲克能源科技有限公司 一种基于自学习的有杆抽油机井冲次调节方法
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CN113863918A (zh) * 2021-10-27 2021-12-31 沈阳汽车刮水器厂 一种基于电能法的游梁式抽油机平衡率监测方法及装置
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CN114718514A (zh) * 2021-01-06 2022-07-08 中国石油化工股份有限公司 基于功率加权预测的抽油机直流母线群控算法
CN115163810A (zh) * 2022-09-08 2022-10-11 大庆凯荣科技有限公司 抽油机动力传动保护装置及其使用方法
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CN106854986A (zh) * 2016-12-15 2017-06-16 中国石油天然气股份有限公司 一种抽油机井光杆示功图测算系统及其测算方法
CN108979596A (zh) * 2018-09-14 2018-12-11 贵州航天林泉电机有限公司苏州分公司 一种具有皮带断裂保护功能的立式抽油机
CN108979596B (zh) * 2018-09-14 2024-04-05 贵州航天林泉电机有限公司苏州分公司 一种具有皮带断裂保护功能的立式抽油机
CN108999599A (zh) * 2018-09-20 2018-12-14 山东奥卓电气科技发展有限公司 一种抽油机的节能控制装置及其控制方法
CN109882154A (zh) * 2019-04-19 2019-06-14 新疆成和天利能源科技股份有限公司 一种单井计量装置
CN109882154B (zh) * 2019-04-19 2023-11-14 新疆成和天利能源科技股份有限公司 一种单井计量装置
CN113361060B (zh) * 2020-03-05 2023-07-25 中国科学院沈阳自动化研究所 一种抽油机电功图转示功图摩擦力矩优化方法
CN113361060A (zh) * 2020-03-05 2021-09-07 中国科学院沈阳自动化研究所 一种抽油机电功图转示功图摩擦力矩优化方法
CN111594139A (zh) * 2020-05-22 2020-08-28 大连虹桥科技有限公司 油井测试与等泵充满按冲次同步数控抽油法
CN111594139B (zh) * 2020-05-22 2023-05-09 大连虹桥科技有限公司 油井测试与等泵充满按冲次同步数控抽油法
CN111946329A (zh) * 2020-09-08 2020-11-17 中国石油天然气股份有限公司 一种油井动液面求取方法
CN111946329B (zh) * 2020-09-08 2023-09-26 中国石油天然气股份有限公司 一种油井动液面求取方法
CN112031748A (zh) * 2020-09-14 2020-12-04 南京富岛信息工程有限公司 一种基于示功图特征的抽油机井异常工况诊断方法
CN112031748B (zh) * 2020-09-14 2023-09-01 南京富岛信息工程有限公司 一种基于示功图特征的抽油机井异常工况诊断方法
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CN115163810A (zh) * 2022-09-08 2022-10-11 大庆凯荣科技有限公司 抽油机动力传动保护装置及其使用方法
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CN115531782A (zh) * 2022-10-11 2022-12-30 江苏安奇正特种车辆装备有限公司 一种具有支脚自平衡功能的高层用消防设备
CN115510370A (zh) * 2022-11-21 2022-12-23 山东胜利通海集团东营天蓝节能科技有限公司 一种基于地面示功图计算油井产液量的方法
CN116658127A (zh) * 2023-07-28 2023-08-29 大庆市华禹石油机械制造有限公司 一种电压缸驱动的抽油机
CN117266797A (zh) * 2023-11-23 2023-12-22 上海逸讯能源科技有限公司 一种智慧采油设备
CN117266797B (zh) * 2023-11-23 2024-02-06 上海逸讯能源科技有限公司 一种智慧采油设备

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