CN202064904U - Separate dual-well oil pumping machine - Google Patents
Separate dual-well oil pumping machine Download PDFInfo
- Publication number
- CN202064904U CN202064904U CN2011201469329U CN201120146932U CN202064904U CN 202064904 U CN202064904 U CN 202064904U CN 2011201469329 U CN2011201469329 U CN 2011201469329U CN 201120146932 U CN201120146932 U CN 201120146932U CN 202064904 U CN202064904 U CN 202064904U
- Authority
- CN
- China
- Prior art keywords
- well
- belt
- oil
- pumping
- oil pumping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a separate dual-well oil pumping machine which mainly solves the technical problems of the prior art that the structure is complex, the maintenance is inconvenient, the using environment for dual-well oil pumping is limited, the position of an oil well frame is difficult to adjust, etc. In the separate dual-well oil pumping machine, a power base comprises a motor, a speed reducer, a power belt pressing roll and a brake device, wherein the motor adopts a permanent magnet alternating current servo electric motor or a switch reluctance motor; fastening components used for fastening one end of an A well belt and one end of a B well belt respectively are arranged on the power belt pressing roll; weight balancing rollers and oil pumping rollers are arranged at the tops of an A bracket and a B bracket; positions of the oil pumping rollers are adjustable on the horizontal direction; and one ends of the A well belt and the B well belt are respectively connected and fastened with the corresponding fastening components on the power belt pressing roll, and the other ends of the A well belt and the B well belt are respectively connected with an A well rope hanger and a B well rope hanger corresponding to each other bypassing the weight balancing rollers and the oil pumping rollers. The separate dual-well oil pumping machine is concise in structure, and can be adjusted fast, simply and conveniently according to the positions of the wells and stroke requirements.
Description
Technical field
The utility model relates to a kind of twin-well oil-pumping machine that is applied to oil field machinery oil, to realize the oil pumping of individual well or twin-well; Relate in particular to a kind of drive part and place the split type twin-well oil-pumping machine on ground; Also can be applied to the gas production of coal gas field.
Background technology
The oil field is not only the energy rich and influential family is provided, it also is major power consumer, oil pumper is not only being undertaken the important task of producing crude oil as the topmost energy consumption equipment in oil field, has also expended a large amount of electric energy simultaneously, in order to keep the economical operation of oil pumper, reduce waste of electric energy, drop into lot of manpower and material resources every year in the maintaining energy-saving measure of oil pumper, along with the prolongation of the oil field development time limit, stratum energy is depleted gradually, is difficult to keep oil well and continues blowing.China's oil field majority is the sticking oil well that yields poorly, and under the condition that guarantees certain output, adopting increases length of stroke, reduces the pumping mode of strokes per minute.Can bring a series of benefits: 1,, improved the coefficient of fullness and the discharge coefficient of oil well pump owing to reduce the relative deformation value of rod string; 2, improve the condition of work of sucker rod, prolong the application life of sucker rod; 3, improve the working life of oil well pump parts; 4, improve the energy indexes of oil well pump package unit, improve the system effectiveness of device.In actual applications, maximum stroke is during greater than 6 meters, and it is very heavy that beam pumping unit just seems, operate very inconvenient, in addition, below three parameters represent the integral level of oil pumper, 1, the value of performance and price parameter (P*S*n/ unit price) is big more, then cost is low more; 2, greatly then complete machine is light and handy more for the value of performance quality parameter (P*S*n/ complete machine quality); 3, then energy consumption of electrical machinery is more little for the value height of Performance torque parameter (P*S*n/M).
The method of Chu Xianing has in recent years: multiple mechanical oil recovery methods such as gas-lift production, hydraulic pump oil recovery, screw pump oil production, electric submersible pumping, pumping production.China will increase progressively more than 10,000 mouthfuls every year, and about 95% is mechanical oil recovery.In 95% mechanical oil recovery, wherein four connecting-rod beam formula oil pumpers account for about 90%, become the leading type of mechanical oil recovery.Along with popularizing of this type, update, constantly bring forth new ideas, by U.S. API standard, existing 77 kinds of specifications and models.In the no girder-like oil pump of the low strokes per minute of current long stroke, typical type has: (1) chain type oil pump, (2) wide belt oil pumping machine, (3) tower shelf type oil pumping machine, (4) column type vertical oil-pumping machine.The most permagnetic synchronous motors that adopt of its motor, wherein the outer rotor vertical oil-pumping machine removes reductor, adopts directly to drive, and its motor size is huge, and moment of torsion reaches the motor of 10000Nm, about 16 tons of weight.
The development trend of oil production technology has proposed the demand to big load, long stroke, low jig frequency type, but reduce the technology content of carbon emission, raising energy efficiency, high-performance type, the all embarrassed important task of above-mentioned type is demanded developing a kind of brand-new low-carbon (LC) oil pumper that is better than present all kinds of types urgently and is replaced existing type.
Existing oil well, great majority adopt the configuration of a machine one well, minority oil recovery twin-well one machine configuration, in area, gully, plateau, because of the level land rare, the deviated directional drillings that adopt constitute the arranged type well more, land resources is limited on the man-made island, the rows of employing well more, and recover the oil a machine twin-well and even gang pumping can reduce energy consumption greatly, reduce cost for oil production, save equipment investment.Each Oilfield Company is actively promoted the cluster well group that floor space is few, utilization ratio is high and is used, obtain positive effect, cluster well is meant on a well site or platform, gets out some mouthfuls even up to a hundred mouthfuls of wells, the well head of each well is apart less than several meters, and different azimuth is then stretched in each well shaft bottom.
The existing oil pumper standard SY/T5044-2003 " beam pumping unit " of China produces with reference to combination reality on American Petroleum Institute (API) promulgation in 1993 API spic11E " oil pumper standard " basis and the mode of occupation revision is finished, reductor nominal torque M, maximum polished rod load P, maximum stroke S is 3 major parameters of oil pumper, adopt PS/M=C (constant), variation along with working condition, such as the sucker rod diameter, the pump footpath, jig frequency, stroke, changes such as the following pump degree of depth, the C value changes, three kinds of parameters have formed the oil pumper (the C value is usually between 3-12) of 77 (API spic11E) kind and 28 kinds of (SY/T5044-2003) different sizes by the collocation of different brackets, above-mentioned each model is unit individual well structure, only side oil pumping, the opposite side consumes energy, make oil pumper unit power price big, pumping efficiency is low, runs counter to low-carbon economy.
Chinese patent 2010102329640 disclosed a kind of swinging double-well pumping units, stroke and well spacing are restricted, such as 3 meters strokes, two mouthfuls of well spacings must (3 meters be waved greater than 7.6 meters, 1 meter of spacing, 2 meters on derrick, 0.8 meter of derrick and mouth of pumped oil well center distance) use the restriction that is subjected to a certain degree.
The disclosed a kind of twin-well column pumping unit of Chinese patent CN101769144A adopts top rail to be fixed on the top of column, and drive unit is fixed on the top rail, be the power set overheads, install, maintenance, repair, maintenance, operation etc. must be ascended a height, and use inconvenience.Top sheave of Cai Yonging and lower sheave are installed on the adjustable track of top rail again, and the wire rope pre-tightening apparatus hangs on the wire rope of friction pulley both sides, and polished rod eye, top sheave, lower sheave, drive unit, combined counterbalance link up by wire rope.Twining repeatedly of train and wire rope has a greatly reduced quality for the application life of wire rope, also reduced operational efficiency simultaneously.Particularly wide when the well spacing, when stroke was not high, the top rail cantilever was excessive, existed on the structure only to be fit to the little oil well of well spacing.
Chinese patent 200910254583.X disclosed " a kind of double-well swing arm pumping unit ", existing problems are to have satisfied stroke, but can't guarantee spacing, satisfied the contradiction that spacing but can't guarantee stroke, and the adjusting range of stroke and spacing is limited, adopts the wire rope transmission equally, and uses the after-combustion mode, accelerate the aging of wire rope, needed frequently more change steel rope.
Chinese patent 2010202794703 disclosed " self-balancing twin-well oil-pumping machine ", sprocket wheel and the chain transmission adopted, there are engaging friction wearing and tearing between long-term rigid gear chain, influence application life, when a bite well servicing, another mouthful well can not be worked, and makes operational efficiency low, the governor motion of these structure both sides influences the stroke height, also causes the space waste from guiding mechanism to the top simultaneously.
Russ P RU2205978C2 discloses a kind of " chain drive twin-well oil-pumping machine ", motor is converted to reciprocating motion by driving wheel on the driven shaft that is contained in reducer and the driven pulley on the housing with rotatablely moving of reductor driven shaft, driven pulley can be with respect to its geometrical axis rotation, and by being enclosed within plate-like chain and the driven pulley interlock on the sprocket wheel, be connected on the plate-like chain by the pivot pin hinge from a side, and vertically being contained in the crank connecting link of equalizer lower end, can swing opposite side with respect to vertical plane, and by the fixed radial head, movable head radially, suspension bracket, the sucker rod of well head, pulley, hinge head, support, suspension bracket, the gangbar of oil well, pulley, two (or 4) pump rod interlocks of hinge head and support and oil well pump.Major defect is: 1, each steelwork is standing engaging friction wearing and tearing between long-term rigid gear chain under the heavy load state, and reduce application life.2, be enclosed within on the sprocket wheel plate-like chain, pivot pin hinge, drive sprocket and driven sprocket long term exposure outside, the dust sandstone is easy to enclose, and causes wearing and tearing, needs frequent maintenance.3, a bite well well workover, during another mouthful well operate as normal, devices such as need counterweight can't be realized.
The disclosed a kind of three vertical oil sucking machine of compound permanent magnet motor of Chinese patent ZL2008203022587, adopt compound permanent magnet motor and cylindrical structure, this technology is removed reductor by motor direct-drive oil well polished rod, reduced the mechanical loss of reductor, its subject matter compound permanent magnet motor manufacturing cost height, mainly constitute by copper cash and thulium permanent magnet, moment of torsion reaches the compound permanent magnet motor of 10000Nm, motor weight is more than 16 tons, be installed in the column type top, add that balancing weight weight adds the load of sucker rod and oil, increase for the weight of whole framework greatly.Because selling at exorbitant prices, maintenance is inconvenient, causes this technology to be released for many years, and market is not accepted as yet.
Chinese patent ZL2006201648775, a kind of " gearless driving energy-saving pumping unit " disclosed, with Chinese patent ZL2006201363747, disclose the above three technology of a kind of " the synchronous twin-well oil-pumping machine of rare earth permanent magnet gearless " disclosed a kind of " twin-well towing oil-pumping machine " CN101379270A and all saved reductor.Its risk is the round-the-clock open work of continuous duty, from north to the influence to control system electronic component functional stabilization and life-span such as deepwater moist dew point of southern climate change environment temperature.The problem that exists is: this synchro traction machine moment of torsion is too little, usually being applied in elevator drags, moment of torsion is generally about 1000Nm, and in the field use, promote tens tons weight (10 type machines, about 2000 meters of general well depths, 2000 meters rod weight add the liquid weight in 2000 meters the annulus area), quiet pulley by movable pulley and guiding increases gearratio, has reduced speed like this, has increased lifting load, but need motor speed to improve, strengthened power again, increased a series of train again, all made troubles to installing and using manufacturing.In addition, preceding two technology are when running into wherein a bite well maintenance, and another mouthful well can't be worked, and influences output; Another technology, since the increase of train, operation inconvenience during well workover.
The utility model content
The utility model aims to provide a kind of split type twin-well oil-pumping machine, mainly solved the prior art complex structure, safeguarded inconvenience, during the twin-well oil pumping environment for use limited, be difficult to adjust technical problem such as oil well backing positions.
The technical scheme that provides of the present utility model is as follows:
A kind of split type twin-well oil-pumping machine, comprise A, B support and the power base between A, B support corresponding to A, B well, its special character is: described power base comprises motor, reductor, power belt pressure roller and check mechanism, wherein, motor adopts permanent magnetic Ac servo motor or switched reluctance variable speed machine, and described power belt pressure roller is provided with in order to lock the latch assembly of A well belt one end and B well belt one end respectively; Prop up top of the trellis at A, B and be provided with counterweight cylinder and the adjustable oil pumping cylinder in position in the horizontal direction, A well belt, B well belt one end respectively with the power belt pressure roller on each self-corresponding latch assembly be connected locking, the other end is walked around counterweight cylinder and oil pumping cylinder with accordingly A well polished rod eye, B well polished rod eye are connected.
If adopt permanent magnetic Ac servo motor, then (1) brushless and commutator, reliable operation requires low to care and maintenance; (2) stator winding heat dissipation is convenient; (3) be adapted to senior middle school's low speed, the duty of big moment; (4) compare with DC servo-motor, with smaller volume and weight are arranged under the power.
If adopt magnetic resistance switch speed-adjustable motor, then (1) system effectiveness and power factor height, speed-regulating range width, peak efficiency can reach 95%, and speed ratio was above 1: 20; (2) low starting current, high start torque, starting current are 30% of rated current, detent torque is 150% of a rated value; (3) frequently start-stop and rotating operation; (4) the control system circuit structure is simple, the functional reliability height, and rotor does not have winding, the mechanical strength height; (5) keep permanent torque operation in rated speed, rotational speed and torque is stable, and the fluctuation of speed is less than 0.15%.
Above-mentioned motor is direct-connected through shaft coupling and reductor, check mechanism is between motor and shaft coupling, the direct-connected power belt pressure roller of the output shaft of reductor, so further simplified structure, the pattern of this kind power output has satisfied the lightness of power-equipment more, also can make power-equipment integral body place ground (as the power base), maintain easily and adjust.
The preferred cycloidal planetary gear speed reducer of above-mentioned reductor, the preferred electro-hydraulic brake device of described check mechanism.
Above-mentioned latch assembly is at least one pair of the belt draw-in groove that is embedded in power belt pressure roller, symmetrical distribution, and A well belt, B well belt one end are connected locking with corresponding belt draw-in groove.Perhaps latch assembly adopts known other modes also can.
Above-mentioned A, B prop up top of the trellis and are set with oil pumping cylinder gripper shoe, and oil pumping cylinder gripper shoe is provided with the turning cylinder parallel with the cylinder axis of pumping, and make the oil pumping cylinder to rotate with this turning cylinder.
Above-mentioned polished rod eye comprises in order in the horizontal direction belt is realized the concavo-convex clamping plate that extruding is fixing, further like this stability and the reliability that has guaranteed tractive load; Certainly, also can adopt known other technologies means in order to fastening belt.
Above-mentioned A, B support form by a plurality of intussusception support intussusceptions, like this when needs are adjusted the stroke height, can raise easily or reduce the oil well support.
Above-mentioned A well belt, the preferred finer wire belt of B well belt or nonwoven belt, it is better to compare to common rope effect.
The utlity model has following advantage:
1, motor direct-drive twin-well oil pumping.Adopt switched reluctance machines, starting current is 30% of a rated current, and detent torque is 150% of a rated value.Be fit to frequent start-stop and rotating operation.
2, the well spacing accommodation of two mouthfuls of wells is wide, and the well spacing is from 3 meters more than-10 meters.Reduced manufacturing cost.
3, the stroke height increases simplification, when liquid level changes, needs to adjust the stroke height, this structure need not to make again, and increasing a joint intussusception support on the basis of original support can finish, and saves cost, save time, can increase and decrease the intussusception support as required, the convenient use.
4, described reductor can be direct-connected with switched reluctance machines, adopts cycloidal planetary gear speed reducer to be placed on ground, and do not placing atop, is convenient to maintaining and changes maintenance.
5, do not need top rail and walking beam, no ceiling.
6, two mouthfuls of oil wells adopt independent belt transmission respectively.Avoid the sucker rod of a bite oil well to rupture suddenly, and damaged another mouthful well.
But 7, install according to on-the-spot needs individual well.
Description of drawings
Fig. 1 is structural representation of the present utility model (equilibrium state when A well, B well, active force base three part tight types), and wherein (a) is front view, (b) is the schematic top plan view of A well one side.
Counterweight cylinder and the oil pumping cylinder schematic diagram of Fig. 2 for being arranged at a top of the trellis in the utility model wherein, (a) is front view, (b) is the schematic diagram of A mine timbering one side, (c) is the schematic diagram of B mine timbering one side.
Fig. 3 is the structure and the connection diagram of power belt pressure roller of the present utility model, and wherein (a) is main apparent direction sectional view, (b) is schematic top plan view.
Fig. 4 is changing adjusted structural representation for the utility model according to the well spacing.
Fig. 5 is the schematic diagram of the concavo-convex clamping plate of the utility model.
Fig. 6 answers the changes stroke demand to adjust the schematic diagram of intussusception support, wherein (a) embodied the intussusception mode of each intussusception support (in the actual concrete operations, can adopt the angle steel of bolt adjacent intussuscepted support correspondence to realize fixing), (b) embodied the dimension scale signal of each intussusception support.
The drawing reference numeral explanation:
1-power base,
10-electro-hydraulic brake device, 11-motor, 12-shaft coupling, 13-reductor, 14-power belt pressure roller, 141-belt draw-in groove (6 of symmetries), 15-belt connector casing, 151-convex-concave clamping plate, 152-clamping plate bolt;
The 2-A mine timbering,
201-intussusception support (one), 202-intussusception support (two), 203-intussusception support (three), 204-intussusception support (four), 21-A well belt, the 221-cylinder of pumping, 222-counterweight cylinder, 231-oil pumping cylinder gripper shoe, 232-counterweight cylinder gripper shoe, 24-A well polished rod eye, 25-A well polished rod, 26-A well balancing weight;
The 3-B mine timbering,
311,312-B well belt, the 321-cylinder of pumping, 322-counterweight cylinder, 331-oil pumping cylinder gripper shoe, 332-counterweight cylinder gripper shoe, 34-B well polished rod eye, 35-B well polished rod, 36-B well balancing weight;
L1-power base, A mine timbering, B mine timbering three near, two mouthfuls of well center to center distance minimum ranges are 3 meters.
L2-determines power base and two Kou Jing centers, is moved to the left the A mine timbering, and the B mine timbering that moves right prolongs strap length, and two mouthfuls of well center to center distance are satisfied arbitrarily in 3 meters-10 meters scope, and ultimate range also can be greater than 10 meters.
H1-2 rice can use three branch body support frames to link to each other with inner stroke.
H2-works as stroke greater than 2 meters, can adopt building block system framework (a plurality of intussusception support intussusceptions form), can rice be unit increase and decrease height, flexible suit, and large-size frame is overlapped the small size framework, and conserve space is convenient to transportation.
The specific embodiment
A kind of split intussusception stent-type single-well/double-well oil pumping unit is propped up by power base and A/B and to be configured to, and described power base comprises motor, shaft coupling, reductor, power belt pressure roller, electro-hydraulic brake device; Motor and reductor adopt direct-connected installation, motor adopts permanent magnetic Ac servo motor or switched reluctance variable speed machine, reductor adopts cycloidal planetary gear speed reducer, power belt pressure roller cylindrical is provided with the 1-3 of symmetry to the belt draw-in groove, A well belt is that single band is arranged on power belt pressure roller centre bit, narrow two belts of the relative A well of B well belt belt, place both sides, stagger with A well belt, A, B well belt one end is stuck in the symmetrical draw-in groove of power belt pressure roller, the other end is walked around the belt connector casing on counterweight cylinder and the oil pumping cylinder insertion polished rod eye, cabinet wall is made up of many emboss pits, belt two sides in the casing is by pushing perpendicular to the convex-concave clamping plate that are subjected to force direction, and belt is finer wire belt or nonwoven belt, and its tensile strength and life-span are better than wire rope greatly.
Oil pumping cylinder and counterweight cylinder place support top, support by oil pumping cylinder gripper shoe and counterweight cylinder gripper shoe respectively, belt is connected with polished rod eye through the oil pumping cylinder from the power source through counterweight cylinder guiding, polished rod eye hangs oil-extractor polish-rod down, counterweight cylinder outside vertical is downwards the center of counterweight in the support, oil pumping cylinder outside vertical is downwards the center of oil well, counterweight is seated in the support during normal the use, when a bite well wherein needs maintenance, when another mouthful well needs operate as normal, the clamping plate bolt of the convex-concave clamping plate in the belt connector casing in the polished rod eye of extension polished rod is unclamped, take off the convex-concave clamping plate, extract belt out, after hanging the polished rod eye unloading of polished rod, hang up counterweight in the support through the counterweight cylinder, the oil pumping cylinder anglec of rotation is from aI to a2, directly get out of the way the well workover space, sucker rod unloading and balancing weight when finishing well workover fast load, and with the configuration block unloading, recover oil pumping cylinder angle after well workover is finished, be back to a1 from a2, again hang up oil-extractor polish-rod, belt passes the belt connector casing on the polished rod eye again, tightens the clamping plate bolt, compress the convex-concave clamping plate of the another side of belt, the fast quick-recovery state of normally pumping.
The utility model with the power belt pressure roller as core transmission component, motor is connected with reductor through shaft coupling, the electro-hydraulic brake device is located in the middle of motor and the shaft coupling, the direct-connected power belt pressure roller of the output shaft of reductor, the power belt of two mouthfuls of wells is pressed in the power belt pressure roller groove, power belt is connected with belt connector casing on the polished rod eye of well head separately respectively, clamp belt in casing with the convex-concave clamping plate, tighten the clamping plate bolt, termination oil-extractor polish-rod under the polished rod eye, when just changeing, motor drives the rotation of power belt pressure roller, the power belt that is pressed in the power belt pressure roller groove is wrapped on the power belt pressure roller, when the polished rod rising of a bite well, the polished rod of another mouthful well descends, and the polished rod that rises during the motor counter-rotating falls, the polished rod that descends rises, oil pumper is finished stroke one time, and the continuous rotating of motor realizes that crude oil is drawn in the continuous suction of sucker rod drive downhole pump under the polished rod.
Power base of the present utility model, A support, B support three parts are relatively independent integral body, counterweight in the support, prop up the counterweight cylinder of top of the trellis and the cylinder of pumping as a separate unit, when well spacing need be adjusted, support is moved to suitable position to get final product, when the stroke height need be adjusted, intussusception support (), intussusception support (two), intussusception support (three) are increased an intussusception support (four), height can require to set newly-increased intussusception support according to stroke.
In use, if need to adjust well spacing, adjustment stroke height, the strap length that only extends adopts the belt connector casing, and the belt fastening structure of convex-concave clamping plate and clamping plate bolt can directly connect on original strap length.
Claims (8)
1. split type twin-well oil-pumping machine, comprise A, B support and the power base between A, B support corresponding to A, B well, it is characterized in that: described power base comprises motor, reductor, power belt pressure roller and check mechanism, wherein, motor adopts permanent magnetic Ac servo motor or switched reluctance variable speed machine, and described power belt pressure roller is provided with in order to lock the latch assembly of A well belt one end and B well belt one end respectively; Prop up top of the trellis at A, B and be provided with counterweight cylinder and the adjustable oil pumping cylinder in position in the horizontal direction, A well belt, B well belt one end respectively with the power belt pressure roller on each self-corresponding latch assembly be connected locking, the other end is walked around counterweight cylinder and oil pumping cylinder with accordingly A well polished rod eye, B well polished rod eye are connected.
2. split type twin-well oil-pumping machine according to claim 1 is characterized in that: motor is direct-connected through shaft coupling and reductor, check mechanism between motor and shaft coupling, the direct-connected power belt pressure roller of the output shaft of reductor.
3. split type twin-well oil-pumping machine according to claim 2 is characterized in that: described reductor is a cycloidal planetary gear speed reducer, and described check mechanism is the electro-hydraulic brake device.
4. according to the arbitrary described split type twin-well oil-pumping machine of claim 1 to 3, it is characterized in that: described latch assembly is at least one pair of the belt draw-in groove that is embedded in power belt pressure roller, symmetrical distribution, and A well belt, B well belt one end are connected locking with corresponding belt draw-in groove.
5. according to the arbitrary described split type twin-well oil-pumping machine of claim 1 to 3, it is characterized in that: A, B prop up top of the trellis and are set with oil pumping cylinder gripper shoe, oil pumping cylinder gripper shoe is provided with the turning cylinder parallel with the cylinder axis of pumping, and makes the oil pumping cylinder to rotate with this turning cylinder.
6. according to the arbitrary described split type twin-well oil-pumping machine of claim 1 to 3, it is characterized in that: described polished rod eye comprises in order in the horizontal direction belt is realized the concavo-convex clamping plate that extruding is fixing.
7. according to the arbitrary described split type twin-well oil-pumping machine of claim 1 to 3, it is characterized in that: described A, B support form by a plurality of intussusception support intussusceptions.
8. according to the arbitrary described split type twin-well oil-pumping machine of claim 1 to 3, it is characterized in that: described A well belt, B well belt are finer wire belt or nonwoven belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201469329U CN202064904U (en) | 2011-05-11 | 2011-05-11 | Separate dual-well oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201469329U CN202064904U (en) | 2011-05-11 | 2011-05-11 | Separate dual-well oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064904U true CN202064904U (en) | 2011-12-07 |
Family
ID=45058772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201469329U Expired - Fee Related CN202064904U (en) | 2011-05-11 | 2011-05-11 | Separate dual-well oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064904U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155191A (en) * | 2011-05-11 | 2011-08-17 | 陕西金福源投资有限公司 | Split twin-well pumping unit |
| CN102410003A (en) * | 2012-01-09 | 2012-04-11 | 浙江海洋学院 | Combined energy-saving oil pumping unit |
-
2011
- 2011-05-11 CN CN2011201469329U patent/CN202064904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155191A (en) * | 2011-05-11 | 2011-08-17 | 陕西金福源投资有限公司 | Split twin-well pumping unit |
| CN102410003A (en) * | 2012-01-09 | 2012-04-11 | 浙江海洋学院 | Combined energy-saving oil pumping unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155191A (en) | Split twin-well pumping unit | |
| CN1752406B (en) | Single crank double stroke flexible rope beam-pumping unit | |
| CN201874536U (en) | Swing type double-well pumping unit | |
| CN201865641U (en) | Long-stroke energy-saving double-well oil sucking machine with driver arranged at upper part | |
| CN101532377B (en) | Pendulum-type energy-saving oil extractor | |
| CN201802360U (en) | Crank pumping unit without beam | |
| CN101881146A (en) | Swinging double-well pumping unit | |
| CN202064904U (en) | Separate dual-well oil pumping machine | |
| CN200946492Y (en) | Double well hydraulic oil pump unit | |
| CN201902199U (en) | Power combined type oil pumping machine with ultra long stroke for a plurality of wells | |
| CN218669317U (en) | Walking beam wheel type two-horse-head double-well energy-saving oil pumping machine | |
| CN201031793Y (en) | Low type completely balancing long stroke beam-pumping unit | |
| CN201092849Y (en) | Chain type double-well oil pump | |
| CN108798605B (en) | Intelligent control digital hydraulic pumping unit | |
| CN2412105Y (en) | Linear motor driven non-beam pumping unit | |
| CN201047344Y (en) | Straight-line balance type long stroke energy-saving oil pumping machine | |
| CN204152485U (en) | Vertical mechanical balanced hydraulic oil extractor | |
| CN204609846U (en) | Intelligent speed changing drum oil pump | |
| CN201786329U (en) | Double-well oil pumping machine with bilateral linear motor | |
| CN201535155U (en) | Permanent magnet motor double-row chain drive-type oil pumping unit | |
| WO2010088789A1 (en) | Integrated oil pumping device | |
| CN220059519U (en) | Multi-well linkage mutual balance horizontal ultra-long stroke oil pumping machine | |
| CN1386955A (en) | Oil recovery technology with self-balanced interactive intelligent electromechanical pumping unit for cluster well | |
| CN201865640U (en) | Underslung-driving long-stroke energy-saving dual-well pumping unit | |
| CN202073541U (en) | Double-crank twice reciprocation balancing lifting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120511 |