CN102536807B - Crude oil lifting system and method for conveying fluid by using sliding vane pump - Google Patents
Crude oil lifting system and method for conveying fluid by using sliding vane pump Download PDFInfo
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- CN102536807B CN102536807B CN201210054052.8A CN201210054052A CN102536807B CN 102536807 B CN102536807 B CN 102536807B CN 201210054052 A CN201210054052 A CN 201210054052A CN 102536807 B CN102536807 B CN 102536807B
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- sliding vane
- vane pump
- pump
- suction
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- 239000012530 fluid Substances 0.000 title claims abstract description 88
- 239000010779 crude oil Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 claims abstract description 71
- 239000003129 oil well Substances 0.000 claims abstract description 27
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000005086 pumping Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005381 potential energy Methods 0.000 description 4
- 238000006424 Flood reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241001023788 Cyttus traversi Species 0.000 description 1
- -1 be straight discoid Chemical compound 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/008—Pumps for submersible use, i.e. down-hole pumping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
- F04C2240/52—Bearings for assemblies with supports on both sides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention provides a crude oil lifting system and a method for conveying fluid by using a sliding vane pump. The crude oil lifting system comprises: oil pipe, with the oil-well pump that oil pipe is connected, the oil-well pump is the gleitbretter pump, the gleitbretter pump has the stator of tube-shape, be equipped with in the stator: the driving shaft is arranged in the stator along the length direction parallel to the stator and sleeved with the rotor on the driving shaft; the rotor is positioned between the suction disc and the discharge disc, the suction disc is provided with a suction inlet for sucking crude oil, and the discharge disc is provided with a discharge outlet for discharging crude oil. The method for conveying fluid by using the sliding vane pump sucks and discharges fluid from the end direction of the stator for lifting.
Description
Technical field
The present invention relates to petroleum industry oil well crude oil hoisting system field, belong to a kind of hoisting system utilizing sliding vane pump lifting crude oil, in particular to a kind of raw oil lifting system and the method utilizing sliding vane pump conveying fluid.
Background technique
Current oil field mainly contains following several artificial lifting way: pumping unit, screw pump, electric submersible pump and gaslift etc., often kind of artificial lifting way has the advantage of oneself uniqueness, but also all there is obvious deficiency: pumping unit hoisting system is sturdy durable, but transmission node is many, not only have the double reduction of speed reducer, also have double leval jib transmission and horse head motion, transmission efficiency is 70 ~ 75% to the maximum, system effectiveness is low, and power consumption is large; Screw pump lifting surface pump driving mechanism is simple, and be generally double reduction transmission, efficiency is higher, surface efficiency generally 88 ~ 92%, far away higher than pumping unit.But screw pump stator is rubber, be difficult to the high temperature lifting operating mode of bearing thick oil well.And, along with the passing of oilfield exploitation time, crude oil moisture, rise gradually containing sand, air content, high temperature exploitation operating mode constantly increases, and existing Lifting Technique is difficult to the requirement meeting oil field high temperature lifting, energy-saving and emission-reduction.
Sliding vane pump is positive displacement pump, is widely used in the fields such as motor turning assisted hydraulic system, lathe, engineering machinery, and suction capacity is strong, and compact structure, working pressure is higher, and flow pulsation is little, and volumetric efficiency is high.Current industrial vane pump all adopts radial suction and discharge mode, make the direction that sucks and discharge often with the rotational axis vertical of sliding vane pump, suck and be connected after the pipeline sucked and discharge with the direction of discharging, add the radial dimension of sliding vane pump, cause sliding vane pump volume comparatively large, be difficult to adapt to narrow and small pipe cylindrical space.Such as, Japan Patent JP1-177478A, and Chinese patent CN2379622Y, all adopt the radial bypass type structure sucking and discharge, above-mentioned two kinds of radial bypass type structures sucked and discharge need very large radial dimension just can reach discharge capacity and the pressure of lifting fluid (such as lifting oil), cannot be arranged in the limited sleeve pipe of size.In addition, above-mentioned existing sliding vane pump is owing to adopting the radial bypass type structure sucking and discharge, if drop in oil well and carry out lifting crude oil, then can in the process dropping to oil well, the radial suction of setting and the pipeline of discharge can be damaged, what be difficult to safety and stability is arranged on down-hole, and the pipeline of the radial suction that arranges and discharge is difficult to bear down-hole immense pressure and corrosion, can not work under crude oil floods operating mode, so, the application of sliding vane pump in the lifting of down-hole of the radial bypass type structural limitations sucked and discharge.
In addition, in order to improve the pumping pressure of sliding vane pump, often needing the rotating speed improving prime mover, because the restriction of the conditions such as heat radiation and a lot of situation, driving the speed of prime mover of sliding vane pump to be difficult to improve.Although the stator of common sliding vane pump is metal (such as stainless steel is made), these features above-mentioned limit its application at some industrial fields, are especially difficult in the traditional field of the lifting operation being applied in oil field.
Summary of the invention
The present invention is intended to utilize the advantage that sliding vane pump is high temperature resistant, compact structure, volumetric efficiency are high, meets high temperature well, conventional well lifting demand, the object of the lifting that reaches a high temperature, energy-saving and emission-reduction.In addition, the present invention also will solve the problem that existing sliding vane pump lifting force is little, radial dimension is large.
For this reason, the present invention proposes a kind of raw oil lifting system, for the crude oil in lifting oil well, described raw oil lifting system comprises: oil pipe and the oil well pump be connected with described oil pipe, described oil well pump is sliding vane pump, described sliding vane pump has the stator of tubular, is provided with: live axle in described stator, and described live axle is arranged in described stator along the length direction of parallel described stator, the rotor be enclosed within described live axle; The lower end of described stator is provided with suction dish, the upper end of described stator is provided with discharge tray, described suction dish, described discharge tray and described stator form the inner chamber of tubular, described rotor is between described suction dish and described discharge tray, described suction dish is provided with the suction port of Inhaling Crude Oil, and described discharge tray is provided with the exhaust port of discharging crude oil.
Further, described rotor is circumferentially provided with slide plate, the lumen contact of described slide plate and described stator seals, described sliding vane pump also comprises the pump case of the tubular be set in outside described stator, described suction dish and described discharge tray are respectively equipped with the axis hole that described live axle passes, be provided with bearing in described axis hole, described suction dish is all positioned at described pump case with described discharge tray and is connected with described live axle respectively by bearing.
Further, described oil pipe is arranged in the production string of oil well, and described sliding vane pump is connected to the below of described oil pipe, and described sliding vane pump is anchored on the inwall of production string by anchor.
Further, described raw oil lifting system also comprises: production tree, is arranged on the well head of oil well, driving head, to be supported and fixed on described production tree and to be positioned at the top of described oil pipe, sucker rod, to extend in described oil pipe and between the live axle being connected to described driving head and described sliding vane pump.
The present invention also proposes another kind of raw oil lifting system, described raw oil lifting system comprises: oil pipe, the oil well pump be connected with described oil pipe, described oil well pump is sliding vane pump, described sliding vane pump comprises: the stator of multiple tubular, multiple described stator is connected from bottom to up successively according to the direction from head end to tail end, live axle, length direction along parallel multiple described stator is located in multiple described stator, the lower end of each described stator is provided with suction dish, the upper end of each described stator is provided with discharge tray, each described stator and adjacent suction dish and discharge tray form the inner chamber of tubular, the rotor be enclosed within described live axle is provided with in each inner chamber, described rotor is between described suction dish and described discharge tray, described suction dish is provided with the suction port of Inhaling Crude Oil, described discharge tray is provided with the exhaust port of discharging crude oil, wherein, in adjacent two described stators, the discharge tray of the stator of below is simultaneously as the suction dish of the stator of top, the exhaust port of the stator of below is simultaneously as the stator suction port of top, described sliding vane pump has the passage carrying fluid from bottom to up, and the passage of described conveying fluid is arranged in the inner chamber of the stator of each described tubular.
Further, each described rotor is circumferentially provided with slide plate, in each described stator, the lumen contact of described slide plate and described stator seals, described sliding vane pump also comprises the pump case of the tubular be set in outside multiple described stator, each described suction dish and each described discharge tray are respectively equipped with the axis hole that described live axle passes, and are provided with bearing in each described axis hole, and each described suction dish is all positioned at described pump case with each described discharge tray and is connected with described live axle respectively by bearing.
Further, described sliding vane pump is connected to the below of described oil pipe, and described sliding vane pump is anchored on the inwall of production string by anchor.
Further, described raw oil lifting system also comprises: production tree, is arranged on the well head of oil well, driving head, to be supported and fixed on described production tree and to be positioned at the top of described oil pipe, sucker rod, to extend in described oil pipe and between the live axle being connected to described driving head and described sliding vane pump.
Further, each described stator has two suction ports and two exhaust ports.
The present invention also proposes a kind of method utilizing sliding vane pump to carry fluid, described sliding vane pump has the stator of tubular, be provided with live axle in described stator, the described sliding vane pump that utilizes carries the method for fluid to carry out suction and displacement fluids to carry out lifting from the end direction of described stator.The stator of multiple tubular is set in described sliding vane pump, multiple described stator is connected from bottom to up successively according to the direction from head end to tail end, each described stator all adopts and carries out suction and displacement fluids to carry out lifting from the end direction of described stator, fluid is sucked sliding vane pump by the stator of bottom, sliding vane pump is discharged by the stator of the top, in two adjacent stators, the fluid that the stator of below is discharged is sucked by the stator of top, top stator suck fluid by again top stator suck with is formed suck and discharge relay, until the fluid sucked is discharged by the stator of the top.
Further, each described stator adopts two suction ports to suck fluid, adopts two exhaust port displacement fluids.
The present invention from the end direction of described stator carry out suction and or displacement fluids (such as crude oil), by the rotation of rotor, the cavity volume that slide plate and stator are formed constantly changes, define sliding vane pump suction port to be communicated with the low-pressure cavity in stator, sliding vane pump exhaust port is communicated with hyperbaric chamber, create the pressure difference between sliding vane pump suction port and sliding vane pump exhaust port, thus realize the pumping of convection cell.
The present invention carries out sucking and displacement fluids from the end direction of described stator, in the process realizing convection cell supercharging or pumping, because sliding vane pump suction port and sliding vane pump exhaust port exist upper-lower height difference, so The invention also achieves the change of fluid potential energy, and when sliding vane pump suction port and sliding vane pump exhaust port are arranged on the end of pump case, improve the variable effect of sliding vane pump convection cell potential energy to greatest extent, especially the raising of potential energy can be realized, this is arranged on pump case side direction with traditional sliding vane pump suction port and sliding vane pump exhaust port, height difference between sliding vane pump suction port and sliding vane pump exhaust port is not obvious, the change that can not affect fluid potential energy is compared, progressive huge, sliding vane pump is made not only to have the function of supercharging or pumping, sliding vane pump is also made to have higher jacking capacity, sliding vane pump is made to be not limited to oil dock emptying, Cargo Oil on ship, sweeping, train unloads the occasions such as groove, and fuel tank, refuelling truck and oil depot, gas station's oil plant conveying, the occasion needing lifting can also be applied in.
Present invention obviates and carry out sucking and displacement fluids from the side direction of stator, reduce the radial dimension of sliding vane pump and radial volume, narrow and small pipe cylindrical space can be adapted to, add the application area of sliding vane pump.Because the present invention carries the passage of fluid to be arranged in the inner chamber of pump case, thus without the need to arranging the suction of radial direction setting and the pipeline of discharge of prior art, so, the pipeline of the suction that the sliding vane pump that instant invention overcomes existing bypass type is arranged due to radial direction and discharge and the down-hole that is arranged on being difficult to safety and stability of causing, the defect such as be difficult to bear down-hole immense pressure and corrosion and can not work under crude oil floods operating mode, by the protection of pump case or pump barrel, make this sliding vane pump while realizing lifting and supercharging, structurally there is anti-sand, anti-gas, anticorrosion, the comprehensive improvement such as withstand voltage, can work under crude oil floods operating mode, uninterrupted lifting under realizing 24 hours unattended duties, thus the mode of crude oil lifting has been expanded, more high temperature resistant than other artificial lifting way.
In addition, the passage of conveying fluid of the present invention is arranged in the inner chamber of the stator of each described tubular, the suction arranged relative to the sliding vane pump radial direction of existing bypass type and the pipeline of discharge carry out conveying liquid, present invention, avoiding the pipeline of suction and discharge Liquid transfer to radial direction arranged by centrifugal action, decrease the loss of Liquid transfer efficiency, pass through delivered inside, especially the axially mode of conveying, add flow and the pressure of conveying, and, suck by delivered inside relative to the radial direction of bypass type and discharge, present invention reduces the path of Liquid transfer, more decrease liquid transmission loss, decrease liquid the losing of pressure and flow velocity in radial directions.In addition, the direction of suction of the present invention and displacement fluids is that the direction of straight line or suction and displacement fluids is for axial substantially, loss of velocity and loss in efficiency little, and the suction of the bypass type of prior art and discharge, there is larger transformation in fluid, thus have the suction of the bypass type of technology and discharge to produce more loss of velocity, loss in efficiency on the direction sucked and discharge.
The present invention is also by arranging multiple stators of arranging up and down successively, utilize the suction from end direction pumping fluid and discharge, and then achieve the relay pressurizing of multistage sliding vane pump, make its conveying more adapting to socket inner fluid and lifting operation, this multistage double action vane pump can significantly increase sliding vane pump discharge capacity, be particularly useful in narrow space, down-hole, can the jacking capacity of significant increase sliding vane pump, make sliding vane pump can be applied to the forbidden zone of traditional sliding vane pump application, the lifting of such as fluid, comprise petroleum production, expand the application area of sliding vane pump.
The further effect of the present invention is as follows:
(1) in this hoisting system, sliding vane pump is full-metallic part, goes for handle up well and vapour of high temperature and drives well;
(2) oil pump volume is little, and the pump housing is short, and this invention is particularly useful for inclined shaft and the larger well of dog-leg degree;
(3) native system ground adopt driving head drive, transmission efficiency is high, energy-conservation, be applicable to thin oil well, Heavy Oil High Temperature well, containing gas well, deep-well, inclined shaft etc.
(4) sliding vane pump of the present invention can work in crude oil 30%-50% situation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the raw oil lifting system according to the embodiment of the present invention;
Fig. 2 is the main apparent direction sectional structure schematic diagram of the sliding vane pump according to the embodiment of the present invention, (not shown slide plate);
Fig. 3 is the sectional structure schematic diagram of the vertical drive axle direction of sliding vane pump according to the embodiment of the present invention;
Fig. 4 is the main apparent direction sectional structure schematic diagram of the another kind of sliding vane pump according to the embodiment of the present invention.
Drawing reference numeral illustrates:
8 pump shafts (live axle) are coiled in 1 pump barrel 2 discharge tray 3 bearing 4 stator 5 rotor 6 key 7 suction
9 slide plate 10 driving head 11 production tree 12 sleeve pipe 13 oil pipe 14 sucker rod 15 sliding vane pump 16 anchors
Stator 100 pump barrel 21 suction port 71 exhaust port below stator 43 above 17 oil reservoir 27 dividing plates 41
Rotor below rotor 53 above 271 fluid interline counters 51
Embodiment
In order to there be understanding clearly to technical characteristics of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
As shown in Figure 1, the present invention proposes a kind of raw oil lifting system, and for the crude oil in lifting oil well, described raw oil lifting system comprises: be arranged on the oil pipe 13 in oil well casing 12, the oil well pump be connected with described oil pipe 13, and described oil well pump is sliding vane pump 15.
As shown in Figures 2 and 3, the first sliding vane pump of the present invention has the stator 4 of tubular, be provided with in described stator 4: live axle 8 (also claiming pump shaft), described live axle 8 be arranged in described stator 4 along the length direction of parallel described stator 4, the rotor 5 be enclosed within described live axle 8; The lower end of described stator 4 is provided with suction dish 7, the upper end of described stator is provided with discharge tray 2, described suction dish 7, described discharge tray 2 and described stator 4 form the inner chamber of tubular, described rotor 5 is between described suction dish 7 and described discharge tray 2, described suction dish 7 is provided with the suction port 71 of Inhaling Crude Oil, and described discharge tray 2 is provided with the exhaust port 21 of discharging crude oil.
Described suction dish 7 and described discharge tray 2 are discoid, such as, be straight discoid, can respectively as the lower end cap of stator 4 and upper end cap.The main distinction of the first sliding vane pump in the present invention and the sliding vane pump of prior art is, slide plate pump intake in the present invention and exhaust port are all arranged on the end direction of stator, namely on end cap, offer suction port 71 and exhaust port 21, the shape of suction port 71 and exhaust port 21 can be long arc shape straight hole, can be communicated to the inner chamber of stator.And the slide plate pump intake of prior art and exhaust port are all arranged on the side direction of stator, in other respects, the first sliding vane pump of the present invention can adopt structure same as the prior art.Such as, can connecting pipeline, exhaust port can connecting pipeline and low pressure sucks, high pressure is discharged working principle not be the emphasis that the present invention discusses about the annexation of the above-mentioned parts in the shape of the shape of the shape of stator in sliding vane pump, live axle, suction port and the shape of described exhaust port, the shaft end seal of sliding vane pump and bearings, end cap and sliding vane pump, suction port, the present invention about said structure and working principle can reference and adopt the suitable construction of existing various sliding vane pump.Such as, sliding vane pump suction port is connected with the low-pressure cavity of pump case or is communicated with, described sliding vane pump exhaust port is connected with the hyperbaric chamber of pump case or is communicated with, and stator and suction dish 7 and described discharge tray 2 can be fixedly connected to form airtight chamber by locating stud, seal ring etc. and all can adopt prior art.
Sliding vane pump of the present invention, from the sliding vane pump suction port 71 inspiration low-pressure fluid of bottom, fluid is in the rotation of rotor 5, the change of the volume formed by the rotation of sliding vane pump rotor, cause mineralization pressure between the fluid of inspiration and the fluid of discharge poor, high-pressure liquid is discharged from the sliding vane pump exhaust port 21 of top cover and discharge tray 2, like this, the present invention fundamentally avoids and carries out sucking and displacement fluids from the side direction of pump case, reduce the radial dimension of sliding vane pump and radial volume, narrow and small pipe cylindrical space can be adapted to, add the application area of sliding vane pump.The present invention is not limited to and only sucks and displacement fluids from end cap, as long as the method for suction and displacement fluids can be carried out to carry out pumping from the end direction of described stator, no matter whether sliding vane pump arranges end cap, whether pipe fluid is through end cap, the present invention can realize end to suction and displacement fluids, under normal circumstances, the suction of fluid is consistent with the axis of live axle 8 or close with discharge direction, thus, sliding vane pump of the present invention also (again) can be called axial flow sliding vane pump, main point is to suction and displacement fluids, no matter suck the angle of direction with displacement fluids and live axle, such as can be crossing with the axis of live axle 8 15 degree, 30 degree, 60 degree etc., all to suck with the existing side direction at pump case and the bypass type structure of displacement fluids is distinguished obviously, only fluid suction and discharge direction and the axial consistent of live axle 8 or close to time, sliding vane pump more compact structure of the present invention.
As shown in Figures 2 and 3, suction port 71 and exhaust port 21 are two, two suction ports 71 are arranged on suction dish 7 about live axle 8 axisymmetricly, two exhaust ports 21 are arranged in discharge tray 2 about live axle 8 axisymmetricly, suction port 71 and exhaust port 21 be 90 degree of settings at circumferencial direction interval, and this just becomes double action vane pump.Live axle revolves and turns around, and double action vane pump sucks discharges each twice, and due to structure and stress load symmetry, double action vane pump often can obtain more huge discharge, reduces the noise of sliding vane pump simultaneously, improves the reliability of the parts such as live axle.Certainly, suction port 71 and exhaust port 21 can also can be one, suction port 71 is arranged on suction dish 7, exhaust port 21 is arranged in discharge tray 2, the circumferential interval angles of suction port and exhaust port is 180 °, to coordinate suction port to be connected with the low-pressure cavity of stator, exhaust port is connected with the hyperbaric chamber of stator.Live axle revolves and turns around, and sliding vane pump sucks discharges once, and this is single action vane pump.Arrange two or arrange one about suction port 71 and exhaust port 21, can determine according to the discharge capacity of lifting.
Further, as shown in Figure 3, described rotor 5 is circumferentially provided with slide plate 9, described slide plate 9 seals with the lumen contact of described stator 4, described sliding vane pump also comprises the pump case 1 of the tubular be set in outside described stator, and as shown in Figure 2, described suction dish 7 and described discharge tray 2 are respectively equipped with the axis hole that described live axle 8 passes, be provided with bearing 3 in described axis hole, described suction dish and described discharge tray are all positioned at described pump case 1 and are connected with described live axle 8 respectively by bearing 3.The reduction that pump case is conducive to the sealing of sliding vane pump and the stable of lifting and noise is set.Sliding vane pump of the present invention can adopt the eccentric chamber structure of stator or pump case, the profile line of stator or pump case inner chamber can be symmetrical elliptical shape or sub-elliptical shape, profile line can be multiple curvilinear equation, and stator and suction dish 7 and described discharge tray 2 can be fixedly connected to form airtight chamber by locating stud, seal ring etc., positioning relation between stator and pump case all can adopt prior art.But the invention is not restricted to the eccentric chamber of stator or pump case, and rotor and slide vane structure, the multiple stator of prior art or the matching relationship of pump case and rotor can also be adopted.
The present invention also proposes the second raw oil lifting system, and described raw oil lifting system comprises: oil pipe, the oil well pump be connected with described oil pipe, and described oil well pump is sliding vane pump.The main distinction of the second raw oil lifting system and the first raw oil lifting system is, the sliding vane pump of the second raw oil lifting system is the multistage pump formed by multiple stator, in adjacent stator, the discharge tray of the stator of below is simultaneously as the suction dish of the stator of top, and the exhaust port of the stator of below is simultaneously as the stator suction port of top.This sliding vane pump is multistage sliding vane pump, in every grade of pump or each stator can both be formed the single-stage pump shown in Fig. 2 and Fig. 3 compress suck and high pressure discharge pressurized effect, wherein shown in Fig. 4 is two-stage sliding vane pump.
As shown in Figure 4, the sliding vane pump of the second raw oil lifting system comprises: the stator of multiple tubular, be such as the stator of top and the stator 43 of below, live axle 8, length direction along parallel multiple described stator is located in multiple described stator, the lower end of each described stator is provided with suction dish, the lower end of the stator 43 of below is provided with suction dish 7, described suction port 7 is provided with the suction port 71 of Inhaling Crude Oil, the lower end of the stator of top is provided with dividing plate 27, dividing plate 27 is provided with fluid interline counter 271, dividing plate 27 is as the suction dish of the stator of top, fluid interline counter 271 is as the suction port of the stator of top.
The upper end of each described stator is provided with discharge tray, the upper end of the stator 41 of top is provided with discharge tray 2, described discharge tray is provided with the exhaust port 21 of discharging crude oil, and dividing plate 27 is simultaneously as the discharge tray of the stator 43 of below, and fluid interline counter 271 is simultaneously as the exhaust port of the stator 43 of below.The stator 41 of top and the stator 43 of below are divided into two independently inner chambers by dividing plate 27, these two stators or inner chamber are connected each other by fluid interline counter 271, after the stator 43 of fluid through below sucks, be discharged to the stator 41 of top from fluid interline counter 271 after first order supercharging, after the second level supercharging of the stator 41 of top, from exhaust port 21, discharge the stator 41 of top.Like this, just define two-step supercharging, form two-stage sliding vane pump.If the supercharging multiple of single-stage sliding vane pump is m, then after the supercharging of two-stage axial flow sliding vane pump, the overall supercharging multiple of sliding vane pump be m square, through three grades, then overall supercharging multiple be m cube, through n level, then the overall supercharging multiple of sliding vane pump is the n power of m, by designing the relay pressurizing that can realize multistage axial flow sliding vane pump above, and Be very effective.
As shown in Figure 4, the number of fluid interline counter 271 is two, dividing plate 27 can be same shape and structure with suction dish and discharge tray, but, fluid interline counter 271 on dividing plate 27 is 90 ° with the circumferential interval angles of adjacent suction port and exhaust port, to ensure in each stator, and can as the single-stage sliding vane pump shown in Fig. 2 and Fig. 3, suction port is connected with the low-pressure cavity of stator, and exhaust port is connected with the hyperbaric chamber of stator.Each bore of stator is the identical eccentric chamber of shape, and along the circumferential direction, the setting direction of two neighbouring pump cases is mutually vertical, and to coordinate suction port to be connected with the low-pressure cavity of stator, exhaust port is connected with the hyperbaric chamber of stator.Certainly, suction port 71 and exhaust port 21 can also can be one, suction port 71 is arranged on suction dish 7, exhaust port 21 is arranged in discharge tray 2, the number of fluid interline counter 271 is one, and the fluid interline counter 271 on dividing plate 27 is 180 ° with the circumferential interval angles of adjacent suction port and exhaust port.Live axle revolves and turns around, and sliding vane pump sucks discharges once.Arrange two or arrange one about suction port 71 and exhaust port 21, can determine according to the discharge capacity of lifting.
In Fig. 4, two described stators are connected from bottom to up successively according to the direction from head end to tail end, each described stator and adjacent suction dish and discharge tray form the inner chamber of tubular, be provided with the rotor be enclosed within described live axle in each inner chamber, described rotor is between described suction dish and described discharge tray.According to Fig. 4, we it will also be appreciated that arranging two or more dividing plate forms triplex or more level pump.Because well depth difference needs head pressure different, namely well needs head pressure larger more deeply, theoretical according to series connection of pumps pressure gradient, therefore required pump stage number is also more, and this multistage sliding vane pump can adapt to the use of deep-well.
Further, as shown in Figure 1, described sliding vane pump 15 is connected to the below of described oil pipe 13, and the outlet of pump barrel is communicated with oil pipe, and pump barrel is connected by oil tube buckle with oil pipe, and the connection about pump barrel and oil pipe can adopt the various suitable methods of prior art.Described sliding vane pump is anchored on the inwall of production string 12 by anchor 16, there is oil tube buckle anchor 16 and sliding vane pump 15 pump barrel lower end, directly be connected with anchor by oil tube buckle sliding vane pump 15, when anchor 16 fixes sliding vane pump to ensure pump work, pump case does not rotate.
Further, as shown in Figure 1, described raw oil lifting system also comprises: production tree 11, be arranged on the well head of oil well, driving head 10, is well mouth of oil well rotation driving section, comprises motor, retarder etc., being supported and fixed on described production tree 11 and being positioned at the top of described oil pipe 13, rotating for driving sucker rod; Sucker rod 14, to extend in described oil pipe 13 and to be connected between described driving head 10 and the live axle 8 of described sliding vane pump.Sucker rod 14, pump shaft 8, rotor 5, slide plate 9 is driven to rotate when driving head 10 rotates.Pump shaft 8 (also claiming live axle) is under power transmission, slide plate 9 on rotor driven rotates in the active chamber of stator 2, stator 2 inner chamber adopts ellipsoid, slide plate 9 is forced to produce radial motion, when slide plate rotates to large chamber section (low-pressure cavity) by the duct Inhaling Crude Oil of suction dish 7, when slide plate rotates to loculus section (hyperbaric chamber) just by crude oil in the duct discharge side of discharge tray 7, because rotor ceaselessly rotates, crude oil just constantly sucks and discharges, crude oil in down-hole oil reservoir 17 is delivered to ground production tree 11 by oil pipe 14 and is dispensed into crude oil measurement station and accumulator plant again, the plunger oil-well pump that it is used with existing oil field, the latent centrifugal pump of electricity is all different with screw pump principle.
The present invention also proposes a kind of method utilizing sliding vane pump to carry fluid, described sliding vane pump has the stator of tubular, be provided with live axle in described stator, the described sliding vane pump that utilizes carries the method for fluid to carry out suction and displacement fluids to carry out lifting from the end direction of described stator.As shown in Figures 1 to 4, the present invention is not limited to and only sucks and displacement fluids from end cap (i.e. suction dish and discharge tray), and the present invention can also carry from top to bottom.As long as the method for suction and displacement fluids can be carried out to carry out pumping from the end direction of described stator, no matter whether sliding vane pump arranges end cap or suction dish and discharge tray, whether pipe fluid is through end cap or suction dish and discharge tray, pipe end-cap is not flat or arc, and the present invention can realize end to suction and displacement fluids.Under normal circumstances, the suction of fluid is consistent with the axis of live axle 8 or close with discharge direction, thus, sliding vane pump of the present invention also (again) can be called axial flow sliding vane pump, main point is to suction and displacement fluids, no matter suck the angle of direction with displacement fluids and live axle, such as can be crossing with the axis of live axle 8 15 degree, 30 degree, 60 degree etc., all to suck with the existing side direction at pump case and the bypass type structure of displacement fluids is distinguished obviously, only fluid suction and discharge direction and the axial consistent of live axle 8 or close to time, sliding vane pump more compact structure of the present invention.
Further, as shown in Figure 4, the stator of multiple tubular is set in described sliding vane pump, multiple described stator is connected from bottom to up successively according to the direction from head end to tail end, each described stator all adopts and carries out suction and displacement fluids to carry out lifting from the end direction of described stator, fluid is sucked sliding vane pump by the stator of bottom, sliding vane pump is discharged by the stator of the top, in two adjacent stators, the fluid that the stator of below is discharged is sucked by the stator of top, top stator suck fluid by again top stator suck with is formed suck and discharge relay, until the fluid sucked is discharged by the stator of the top.By designing the relay pressurizing that can realize multistage axial flow sliding vane pump above, realize the supercharging between pump at different levels and relay, relative to the series connection of multiple single-stage pump, structure is simpler, and cost is lower, and pressurized effect is remarkable.
The foregoing is only the schematic embodiment of the present invention, and be not used to limit scope of the present invention.For each constituent element of the present invention can mutually combine under the condition of not conflicting, any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.
Claims (7)
1. a raw oil lifting system, it is characterized in that, described raw oil lifting system comprises: oil pipe, the oil well pump be connected with described oil pipe, described oil well pump is sliding vane pump, be applicable in narrow space, down-hole, described sliding vane pump comprises: the stator of multiple tubular, multiple described stator is connected from bottom to up successively according to the direction from head end to tail end, live axle, length direction along parallel multiple described stator is located in multiple described stator, the lower end of each described stator is provided with suction dish, the upper end of each described stator is provided with discharge tray, each described stator and adjacent suction dish and discharge tray form the inner chamber of tubular, the rotor be enclosed within described live axle is provided with in each inner chamber, described rotor is between described suction dish and described discharge tray, described suction dish is provided with the suction port of Inhaling Crude Oil, described discharge tray is provided with the exhaust port of discharging crude oil, wherein, in adjacent two described stators, the discharge tray of the stator of below is simultaneously as the suction dish of the stator of top, the exhaust port of the stator of below is simultaneously as the suction port of the stator of top, described sliding vane pump has the passage carrying fluid from bottom to up, and the passage of described conveying fluid is arranged in the inner chamber of the stator of each described tubular,
Slide plate pump intake and exhaust port are all arranged on the end direction of stator, and described raw oil lifting system carries out sucking and displacement fluids from the end direction of described stator.
2. raw oil lifting system as claimed in claim 1, it is characterized in that, each described rotor is circumferentially provided with slide plate, in each described stator, the lumen contact of described slide plate and described stator seals, described sliding vane pump also comprises the pump case of the tubular be set in outside multiple described stator, each described suction dish and each described discharge tray are respectively equipped with the axis hole that described live axle passes, be provided with bearing in each described axis hole, each described suction dish is all positioned at described pump case with each described discharge tray and is connected with described live axle respectively by bearing.
3. raw oil lifting system as claimed in claim 1, it is characterized in that, described sliding vane pump is connected to the below of described oil pipe, and described sliding vane pump is anchored on the inwall of production string by anchor.
4. raw oil lifting system as claimed in claim 1, it is characterized in that, described raw oil lifting system also comprises: production tree, be arranged on the well head of oil well, driving head, to be supported and fixed on described production tree and to be positioned at the top of described oil pipe, sucker rod, to extend in described oil pipe and between the live axle being connected to described driving head and described sliding vane pump.
5. raw oil lifting system as claimed in claim 1, it is characterized in that, each described stator has two suction ports and two exhaust ports.
6. the method utilizing sliding vane pump to carry fluid, described sliding vane pump has the stator of tubular, live axle is provided with in described stator, it is characterized in that, adopt sliding vane pump according to claim 1, the described sliding vane pump that utilizes carries the method for fluid to carry out suction and displacement fluids to carry out lifting from the end direction of described stator, the stator of multiple tubular is set in described sliding vane pump, multiple described stator is connected from bottom to up successively according to the direction from head end to tail end, each described stator all adopts and carries out suction and displacement fluids to carry out lifting from the end direction of described stator, fluid is sucked sliding vane pump by the stator of bottom, sliding vane pump is discharged by the stator of the top, in two adjacent stators, the fluid that the stator of below is discharged is sucked by the stator of top, top stator suck fluid by again top stator suck with is formed suck and discharge relay, until the fluid sucked is discharged by the stator of the top.
7. utilize sliding vane pump to carry the method for fluid as claimed in claim 6, it is characterized in that, each described stator adopts two suction ports to suck fluid, adopts two exhaust port displacement fluids.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210054052.8A CN102536807B (en) | 2012-03-02 | 2012-03-02 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
| US14/381,994 US20150027686A1 (en) | 2012-03-02 | 2012-10-22 | Crude Oil Lifting System and Method Utilizing Vane Pump for Conveying Fluid |
| PCT/CN2012/083314 WO2013127183A1 (en) | 2012-03-02 | 2012-10-22 | Crude oil lifting system and method utilizing vane pump for conveying fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210054052.8A CN102536807B (en) | 2012-03-02 | 2012-03-02 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536807A CN102536807A (en) | 2012-07-04 |
| CN102536807B true CN102536807B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210054052.8A Active CN102536807B (en) | 2012-03-02 | 2012-03-02 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20150027686A1 (en) |
| CN (1) | CN102536807B (en) |
| WO (1) | WO2013127183A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102536807B (en) * | 2012-03-02 | 2015-01-21 | 中国石油天然气股份有限公司 | Crude oil lifting system and method for conveying fluid by using sliding vane pump |
| BR112019000513B1 (en) * | 2016-07-13 | 2020-10-20 | Fmc Technologies, Inc | system to install an electrically submersible pump in a well |
| CN107989580B (en) * | 2016-10-27 | 2024-04-16 | 中国石油化工股份有限公司 | Eccentric jet flow lifting device and method |
| CN106703771A (en) * | 2017-01-16 | 2017-05-24 | 丹东纳泰石油机械有限公司 | Lifting device for petroleum production vane pump of petroleum well |
| CN106762614B (en) * | 2017-01-16 | 2018-11-13 | 丹东纳泰石油机械有限公司 | A kind of oil well oil recovery lifting double-acting vane pump |
| CN109505728A (en) * | 2018-12-28 | 2019-03-22 | 中国地质大学（北京） | Dynamic pushing type rotary motor |
| CN113123758A (en) * | 2019-12-31 | 2021-07-16 | 中国石油天然气股份有限公司 | Metal vane pump steam injection valve, lifting device and oil extraction process |
| CN113216913B (en) * | 2021-01-27 | 2022-11-15 | 松原市明悟节能科技有限公司 | Method for controlling intermittent pumping of pumping unit |
| CN115341878B (en) * | 2022-07-08 | 2024-05-28 | 温州大学 | Underground high-wax-content liquid production and transportation device and method |
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- 2012-10-22 WO PCT/CN2012/083314 patent/WO2013127183A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013127183A1 (en) | 2013-09-06 |
| US20150027686A1 (en) | 2015-01-29 |
| CN102536807A (en) | 2012-07-04 |
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