CN102536807A - Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump - Google Patents
Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump Download PDFInfo
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- CN102536807A CN102536807A CN2012100540528A CN201210054052A CN102536807A CN 102536807 A CN102536807 A CN 102536807A CN 2012100540528 A CN2012100540528 A CN 2012100540528A CN 201210054052 A CN201210054052 A CN 201210054052A CN 102536807 A CN102536807 A CN 102536807A
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- sliding vane
- vane pump
- suction
- fluid
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- 239000012530 fluid Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010779 crude oil Substances 0.000 claims description 52
- 239000003921 oil Substances 0.000 claims description 43
- 239000003129 oil well Substances 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 10
- 238000005086 pumping Methods 0.000 description 10
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- 239000003208 petroleum Substances 0.000 description 2
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Images
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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
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- 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
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- 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
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- 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
Abstract
The invention provides a raw oil lifting system and a method for conveying a fluid by utilizing a sliding vane pump. The raw oil lifting system comprises an oil pipe and an oil pump connected with the oil pipe, wherein the oil pump is the sliding vane pump; the sliding vane pump is provided with a barrel-shaped stator; a drive shaft arranged in the stator along a direction parallel to the length of the stator, and a rotor sleeved onto the drive shaft are arranged in the stator; the lower end of the stator is provided with a suction disk; the upper end of the stator is provided with an exhaustion disk; the suction disk, the exhaustion disk and the stator form a barrel-shaped inner cavity; the rotor is arranged between the suction disk and the exhaustion disk; the suction disk is provided with a suction hole for sucking raw oil; and the exhaustion disk is provided with an exhaustion hole for exhausting the raw oil. The method for conveying the fluid by utilizing the sliding vane pump comprises the steps of sucking and exhausting the fluid from the direction of the end part of the stator to perform a lifting process.
Description
Technical field
The present invention relates to petroleum industry oil well crude oil hoisting system field, belong to a kind of hoisting system that utilizes sliding vane pump lifting crude oil, in particular to a kind of crude oil hoisting system and the method for utilizing the sliding vane pump conveyance fluid.
Background technique
The oil field mainly contains following several kinds of artificial lifting way at present: pumping unit, screw pump, electric submersible pump and gaslift etc., and every kind of artificial lifting way all has own special advantages, but also all exists tangible deficiency: the pumping unit hoisting system is sturdy durable; But the transmission node is many; The double reduction that speed reducer is not only arranged also has the motion of four connecting rod transmissions and horse head, and transmission efficiency is 70～75% to the maximum; System effectiveness is low, and power consumption is big; Screw pump lifting surface pump driving mechanism is simple, is generally the double reduction transmission, and efficient is higher, and surface efficiency is higher than pumping unit far away generally 88～92%.But screw pump stator is a rubber, is difficult to bear the high temperature lifting operating mode of thick oil well.And, along with the passing of oilfield exploitation time, crude oil moisture, contain sand, air content rises gradually, high temperature exploitation operating mode constantly increases, and existing Lifting Technique is difficult to satisfy the requirement of oil field high temperature lifting, energy-saving and emission-reduction.
Sliding vane pump is a positive displacement pump, is widely used in fields such as motor turning power-assisted hydraulic system, lathe, engineering machinery, and suction capacity is strong, compact structure, and working pressure is higher, and flow pulsation is little, and volumetric efficiency is high.Present industrial vane pump all adopts and radially sucks and the discharge mode; Often the running shaft with sliding vane pump is vertical for the feasible direction that sucks and discharge; After sucking the pipeline that is connected suction and discharge with the direction of discharging; Increase the radial dimension of sliding vane pump, caused the sliding vane pump volume bigger, be difficult to adapt to narrow and small socket shape space.For example; Japan Patent JP1-177478A; And Chinese patent CN2379622Y; All adopt the bypass type structure that radially sucks and discharge, above-mentioned two kinds of bypass type structures that radially suck and discharge need very big radial dimension just can reach the discharge capacity and the pressure of lift fluid (for example lifting oil), can't be installed in the limited sleeve pipe of size.In addition; Above-mentioned existing sliding vane pump carries out lifting crude oil owing to adopt the bypass type structure that radially sucks and discharge if drop in the oil well, then can be in dropping to the process of oil well; The suction that radially is provided with and the pipeline of discharge can be damaged; The down-hole that is installed in that is difficult to safety and stability, and the suction that radially is provided with and the pipeline of discharge be difficult to bear down-hole immense pressure and corrosion, can not under crude oil floods operating mode, work; So, the bypass type structural limitations that radially sucks and discharge the application of sliding vane pump aspect the lifting of down-hole.
In addition, in order to improve the pumping pressure of sliding vane pump, often need improve the rotating speed of prime mover, because the restriction of condition such as heat radiation and a lot of situation, the speed that drives prime mover of sliding vane pump is difficult to improve.Though the stator of common sliding vane pump is metal (for example processing for stainless steel), above-mentioned these feature limits its application at some industrial fields, especially be difficult to be applied in the traditional field of lifting operation in oil field.
Summary of the invention
The present invention is intended to utilize that sliding vane pump is high temperature resistant, compact structure, advantage that volumetric efficiency is high, satisfies high temperature well, conventional well lifting demand, the purpose 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 big.
For this reason; The present invention proposes a kind of crude oil hoisting system, is used for the crude oil in the lifting oil well, and said crude oil hoisting system comprises: oil pipe and the oil well pump that is connected with said oil pipe; Said oil well pump is a sliding vane pump; Said sliding vane pump has the stator of tubular, is provided with in the said stator: live axle, and said live axle is arranged in the said stator, is enclosed within the rotor on the said live axle along the length direction of parallel said stator; The lower end of said stator is provided with the suction dish; The upper end of said stator is provided with the discharge dish; Said suction dish, said discharge dish and said stator form the inner chamber of tubular; Said rotor is between said suction dish and said discharge dish, and said suction dish is provided with the suction port that sucks crude oil, and said discharge dish is provided with the exhaust port of discharging crude oil.
Further; Said rotor is along being circumferentially with slide plate; The inner chamber contact seal of said slide plate and said stator, said sliding vane pump also comprise the pump case that is set in the outer tubular of said stator, and said suction dish and said discharge dish are respectively equipped with the axis hole that said live axle passes; Be provided with bearing in the said axis hole, said suction dish all is positioned at said pump case with said discharge dish and is connected with said live axle through bearing respectively.
Further, said oil pipe is arranged in the production string of oil well, and said sliding vane pump is connected the below of said oil pipe, and said sliding vane pump is anchored on the inwall of production string through anchor.
Further, said crude oil hoisting system also comprises: production tree is arranged on the well head of oil well; Driving head; Be supported and fixed on the said production tree and be positioned at the top of said oil pipe, sucker rod extend in the said oil pipe and is connected between the live axle of said driving head and said sliding vane pump.
The present invention also proposes another kind of crude oil hoisting system, and said crude oil hoisting system comprises: oil pipe, the oil well pump that is connected with said oil pipe; Said oil well pump is a sliding vane pump, and said sliding vane pump comprises: the stator of a plurality of tubulars, and a plurality of said stators are connected according to the direction from the head end to the tail end from bottom to up successively; Live axle, the length direction of the parallel a plurality of said stators in edge is located in a plurality of said stators, the lower end of each said stator is provided with the suction dish, and the upper end of each said stator is provided with the discharge dish; Each said stator and adjacent suction dish and discharge dish form the inner chamber of tubular, are provided with the rotor that is enclosed within on the said live axle in each inner chamber, and said rotor is between said suction dish and said discharge dish; Said suction dish is provided with the suction port that sucks crude oil; Said discharge dish is provided with the exhaust port of discharging crude oil, wherein, and in adjacent two said stators; The discharge dish while of the stator of below is as the suction dish of the stator of top; As the stator suction port of top, said sliding vane pump has the passage of conveyance fluid from bottom to up to the exhaust port of the stator of below, and the passage of said conveyance fluid is arranged in the inner chamber of the stator of each said tubular simultaneously.
Further; Each said rotor edge is circumferentially with slide plate, in each said stator, and the inner chamber contact seal of said slide plate and said stator; Said sliding vane pump also comprises the pump case that is set in the outer tubular of a plurality of said stators; Each said suction dish is respectively equipped with the axis hole that said live axle passes with each said discharge dish, is provided with bearing in each said axis hole, and each said suction dish all is positioned at said pump case with each said discharge dish and is connected with said live axle through bearing respectively.
Further, said sliding vane pump is connected the below of said oil pipe, and said sliding vane pump is anchored on the inwall of production string through anchor.
Further, said crude oil hoisting system also comprises: production tree is arranged on the well head of oil well; Driving head; Be supported and fixed on the said production tree and be positioned at the top of said oil pipe, sucker rod extend in the said oil pipe and is connected between the live axle of said driving head and said sliding vane pump.
Further, each said stator has two suction ports and two exhaust ports.
The present invention also proposes a kind of method of utilizing the sliding vane pump conveyance fluid; Said sliding vane pump has the stator of tubular; Be provided with live axle in the said stator, the said method of utilizing the sliding vane pump conveyance fluid sucks and discharges fluid to carry out lifting from the end direction of said stator.The stator of a plurality of tubulars is set in said sliding vane pump; A plurality of said stators are connected according to the direction from the head end to the tail end from bottom to up successively; Each said stator all adopts from the end direction of said stator and sucks and discharge fluid carrying out lifting, and fluid is sucked sliding vane pump by the stator of below, is discharged sliding vane pump 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, and the fluid quilt of the stator suction of the top stator of top again sucks to form the relay of suction and discharge, is discharged by the stator of the top up to the fluid that sucks.
Further, each said stator adopts two suction ports to suck fluid, adopts two exhaust ports to discharge fluid.
The present invention from the end direction of said stator suck with or discharge fluid (for example being crude oil); Rotation through rotor; Make the formed cavity volume of slide plate and stator constantly change, formed the sliding vane pump suction port and be communicated with that the sliding vane pump exhaust port is communicated with hyperbaric chamber with the interior low pressure chamber of stator; Produce the pressure difference between sliding vane pump suction port and the sliding vane pump exhaust port, thereby realized the pumping of convection cell.
The present invention sucks and discharges fluid from the end direction of said stator, in the process that realizes convection cell supercharging or pumping, because there are height difference up and down in sliding vane pump suction port and sliding vane pump exhaust port; So the present invention has also realized the variation 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, improved the variable effect of sliding vane pump convection cell potential energy to greatest extent; Especially can realize the raising of potential energy, this is arranged on the pump case side direction with traditional sliding vane pump suction port and sliding vane pump exhaust port, and the height difference between sliding vane pump suction port and the sliding vane pump exhaust port is not obvious; The variation that can not influence fluid potential energy is compared, and is progressive huge, makes sliding vane pump not only have the function of supercharging or pumping; Also make sliding vane pump have higher jacking capacity, make sliding vane pump be not limited to the oil dock emptying, Cargo Oil on the ship; Sweeping, train unloads occasions such as groove, and fuel tank; Refuelling truck and oil depot, gas station's oil plant are carried, and can also be applied in the occasion that needs lifting.
The present invention has avoided sucking and discharge fluid from the side direction of stator, has reduced the radial dimension of sliding vane pump and volume radially, can adapt to narrow and small socket shape space, has increased the application area of sliding vane pump.Because the passage of conveyance fluid of the present invention is arranged in the inner chamber of pump case; Thereby need not to be provided with the suction that radially is provided with of existing technology and the pipeline of discharge; So the sliding vane pump that the present invention has overcome existing bypass type is difficult to being installed in the down-hole, being difficult to bear down-hole immense pressure and corrosion and defective such as can not under crude oil floods operating mode, work, through the protection of pump case or pump barrel of safety and stability owing to what the pipeline of suction that radially is provided with and discharge caused; Make this sliding vane pump when realizing lifting and supercharging; Structurally have anti-sand, anti-gas, comprehensive improvement such as anticorrosion, withstand voltage, can under crude oil floods operating mode, work, realize uninterrupted lifting under 24 hours unattended duties; Thereby expanded the mode of crude oil lifting, more high temperature resistant than other artificial lifting way.
In addition, the passage of conveyance fluid of the present invention is arranged in the inner chamber of the stator of each said tubular, and the suction that radially is provided with respect to the sliding vane pump of existing bypass type and the pipeline of discharge are carried liquid; The present invention has avoided through centrifugal action liquid being delivered to the suction of radially setting and the pipeline of discharge; Reduced the loss of liquid transfer efficiency, through delivered inside, the mode of especially axially carrying; Flow and the pressure carried have been increased; And through radially suction and the discharge of delivered inside with respect to bypass type, the present invention has shortened the path that liquid is carried; More reduced the liquid transmission loss, reduced liquid losing at radial direction upward pressure and flow velocity.In addition; The direction of suction of the present invention and discharge fluid is that the direction of straight line or suction and discharge fluid is axially basically; Loss of velocity and loss in efficiency are little; And the suction of the bypass type of existing technology and discharge, bigger transformation takes place in fluid on the direction that sucks and discharge, thereby has the suction and the discharge of the bypass type of technology to produce more loss of velocity, loss in efficiency.
The present invention also through a plurality of stators of arranging up and down successively are set, utilizes suction and discharge from the end direction pumping fluid, and then has realized the relay pressurizing of multistage sliding vane pump; Make its conveying that adapts to the socket inner fluid more and lifting operation; This multistage double action vane pump can significantly increase the sliding vane pump discharge capacity, is particularly useful for can greatly promoting the jacking capacity of sliding vane pump in the narrow space, down-hole; Make sliding vane pump can be applied to the forbidden zone that traditional sliding vane pump is used; For example the lifting of fluid comprises petroleum production, enlarges the application area of sliding vane pump.
The further effect of the present invention is following:
(1) sliding vane pump is the full-metallic part in this hoisting system, goes for handle up well and vapour of high temperature and drives well;
(2) the oil pump volume is little, and the pump housing is short, and this invention is particularly useful for inclined shaft and the bigger well of dog-leg degree;
(3) native system ground adopts driving head to drive, and transmission efficiency is high, and is energy-conservation, is applicable to thin oil well, viscous crude high temperature well, contains gas well, deep-well, inclined shaft etc.
(4) sliding vane pump of the present invention can be worked under crude oil gassiness 30%-50% situation.
Description of drawings
Fig. 1 is the structural representation according to the crude oil hoisting system of the embodiment of the invention;
Fig. 2 is the main apparent direction sectional structure schematic representation according to the sliding vane pump of the embodiment of the invention, (not shown slide plate);
Fig. 3 is the sectional structure schematic representation according to the vertical drive axle direction of the sliding vane pump of the embodiment of the invention;
Fig. 4 is the main apparent direction sectional structure schematic representation according to the another kind of sliding vane pump of the embodiment of the invention.
The drawing reference numeral explanation:
2 discharges of 1 pump barrel are coiled 7 suctions of 3 bearings, 4 stators, 5 rotors, 6 keys and are coiled 8 pump shafts (live axle)
9 slide plates, 10 driving heads, 11 production trees, 12 sleeve pipes, 13 oil pipes, 14 sucker rods, 15 sliding vane pumps, 16 anchors
The rotor of rotor 53 belows of 271 fluid interline counters, 51 tops
Embodiment
To understand in order technical characteristics of the present invention, purpose and effect being had more clearly, to contrast description of drawings embodiment of the present invention at present.
As shown in Figure 1, the present invention proposes a kind of crude oil hoisting system, is used for the crude oil in the lifting oil well, and said crude oil hoisting system comprises: be arranged on the oil pipe 13 in the oil well casing 12, with the oil well pump that said oil pipe 13 is connected, said oil well pump is a sliding vane pump 15.
As shown in Figures 2 and 3; First kind of sliding vane pump of the present invention has the stator 4 of tubular; Be provided with in the said stator 4: live axle 8 (also claiming pump shaft), said live axle 8 is arranged in the said stator 4, is enclosed within the rotor 5 on the said live axle 8 along the length direction of parallel said stator 4; The lower end of said stator 4 is provided with suction dish 7; The upper end of said stator is provided with discharge dish 2; Said suction dish 7, said discharge dish 2 and said stator 4 form the inner chamber of tubulars; Said rotor 5 is between said suction dish 7 and said discharge dish 2, and said suction dish 7 is provided with the suction port 71 that sucks crude oil, and said discharge dish 2 is provided with the exhaust port 21 of discharging crude oil.
Said suction dish 7 is discoid with said discharge dish 2, for example is straight discoid, can be respectively as the lower end cap and the upper end cap of stator 4.The main distinction of the first kind of sliding vane pump among the present invention and the sliding vane pump of existing technology is; Slide plate pump intake among the present invention and exhaust port all are arranged on the end direction of stator; Promptly on end cap, offer suction port 71 and exhaust port 21; The shape of suction port 71 and exhaust port 21 can be the long arc shape straight hole, can be communicated to the inner chamber of stator.And the slide plate pump intake of existing technology and exhaust port all are arranged on the side direction of stator, and in other respects, first kind of sliding vane pump of the present invention can adopt the structure identical with existing technology.For example; Working principle about the annexation of the shape of the shaft end seal of the shape of shape, suction port and the said exhaust port of the shape of stator in the sliding vane pump, live axle, sliding vane pump and bearings, end cap and the above-mentioned parts in the sliding vane pump, suction port can connecting pipelines, exhaust port can connecting pipeline and low pressure sucks, high pressure is discharged is not the emphasis that the present invention discusses, and the relevant said structure of the present invention and working principle can references and the suitable construction of the existing various sliding vane pumps of employing.For example; The sliding vane pump suction port is connected or is communicated with the low pressure chamber of pump case; Said sliding vane pump exhaust port is connected or is communicated with the hyperbaric chamber of pump case, and stator and suction dish 7 can be fixedly connected to form airtight chamber through locating stud, seal ring etc. with said discharge dish 2 and all can adopt existing technology.
Sliding vane pump of the present invention, from the sliding vane pump suction port 71 inspiration low-pressure fluids of bottom, fluid is in the rotation of rotor 5; The variation of the volume that the rotation through the sliding vane pump rotor forms; Cause forming pressure difference between the fluid of fluid and discharge of inspiration, from top cover promptly the sliding vane pump exhaust port 21 of discharge dish 2 discharge high-pressure liquids, like this; The present invention has fundamentally avoided sucking and discharge fluid from the side direction of pump case; Reduce the radial dimension of sliding vane pump and volume radially, can adapt to narrow and small socket shape space, increased the application area of sliding vane pump.The present invention only is not limited to and sucks and the discharge fluid from end cap, as long as whether the method that can suck and discharge fluid from the end direction of said stator is provided with end cap to carry out pumping regardless of sliding vane pump; Whether pipe fluid does not pass through end cap; The present invention can both realize end to sucking and discharge fluid, generally, the suction of fluid with discharge the axial consistent or approaching of direction and live axle 8; Thereby; Sliding vane pump of the present invention also (again) can be called the axial flow sliding vane pump, and no matter a main point sucks and discharge the direction of fluid and the angle of live axle to sucking and discharging fluid; For example can with live axle 8 axially intersect 15 degree, 30 degree, 60 degree etc.; The bypass type structure difference that all sucks and discharge fluid with existing side direction at pump case obviously, only the suction of fluid with discharge direction and the axial consistent of live axle 8 or near the time, sliding vane pump more compact structure of the present invention.
As shown in Figures 2 and 3; Suction port 71 is two with exhaust port 21; Two suction ports 71 are arranged on the suction dish 7 about live axle 8 axisymmetricly; Two exhaust ports 21 are arranged on the discharge dish 2 about live axle 8 axisymmetricly, and 90 degree are provided with suction port 71 at the circumferencial direction interval with exhaust port 21, and this just becomes double action vane pump.Live axle revolves and turns around, double action vane pump suck to discharge each twice because structure and stress load symmetry, double action vane pump often can obtain bigger discharge capacity, reduces the noise of sliding vane pump simultaneously, the reliability of parts such as raising live axle.Certainly; Can also can be one with exhaust port 21 by suction port 71; Suction port 71 is arranged on the suction dish 7, and exhaust port 21 is arranged on the discharge dish 2, and the circumferential interval angle of suction port and exhaust port is 180 °; To cooperate suction port to be connected with the low pressure chamber 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 a single action vane pump.Be provided with two or be provided with one about suction port 71 and exhaust port 21, can confirm according to the discharge capacity of lifting.
Further, as shown in Figure 3, said rotor 5 is along being circumferentially with slide plate 9; The inner chamber contact seal of said slide plate 9 and said stator 4; Said sliding vane pump also comprises the pump case 1 that is set in the outer tubular of said stator, and is as shown in Figure 2, and said suction dish 7 is respectively equipped with the axis hole that said live axle 8 passes with said discharge dish 2; Be provided with bearing 3 in the said axis hole, said suction dish all is positioned at said pump case 1 with said discharge dish and is connected with said live axle 8 through bearing 3 respectively.The reduction of stable and noise that pump case helps sealing and the lifting of sliding vane pump 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 the elliptical shape or the sub-elliptical shape of symmetry; Profile line can be multiple curvilinear equation, and stator and suction dish 7 and said discharge dish 2 can all can adopt existing technology through the positioning relation that locating stud, seal ring etc. is fixedly connected to form between airtight chamber, stator and the pump case.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 existing technology or the matching relationship of pump case and rotor can also be adopted.
The present invention also proposes second kind of crude oil hoisting system, and said crude oil hoisting system comprises: oil pipe, with the oil well pump that said oil pipe is connected, said oil well pump is a sliding vane pump.The main distinction of second kind of crude oil hoisting system and first kind of crude oil hoisting system is; The sliding vane pump of second kind of crude oil hoisting system is the multistage pump that is formed by a plurality of stators; In the adjacent stator; The discharge dish while of the stator of below, the exhaust port while of the stator of below was as the stator suction port of top as the suction dish of the stator of top.This sliding vane pump is multistage sliding vane pump, in every grade of pump or each stator can both form the pressurized effect that sucks with the high pressure discharge that compresses of Fig. 2 and single-stage pump shown in Figure 3, be the two-stage sliding vane pump shown in Fig. 4 wherein.
As shown in Figure 4, the sliding vane pump of second kind of crude oil hoisting system comprises: the stator of a plurality of tubulars for example is the stator of top and the stator 43 of below; Live axle 8, the length direction of the parallel a plurality of said stators in edge is located in a plurality of said stators, and the lower end of each said stator is provided with the suction dish; The lower end of the stator 43 of below is provided with suction dish 7; Said suction port 7 is provided with the suction port 71 that sucks crude oil, and the lower end of the stator of top is provided with dividing plate 27, and dividing plate 27 is provided with fluid interline counter 271; Dividing plate 27 is as the suction dish of the stator of top, and fluid interline counter 271 is as the suction port of the stator of top.
The upper end of each said stator is provided with the discharge dish; The upper end of the stator 41 of top is provided with discharge dish 2; Said discharge dish is provided with the exhaust port 21 of discharging crude oil, and 27 whiles of dividing plate, 271 whiles of fluid interline counter were as the exhaust port of the stator 43 of below as the discharge dish of the stator 43 of below.Dividing plate 27 is divided into two independently inner chambers with the stator 41 of top and the stator 43 of below; These two stators or inner chamber connect each other through fluid interline counter 271; After stator 43 suctions of fluid through the below; Through being discharged to the stator 41 of top from fluid interline counter 271 after the first order supercharging, from exhaust port 21, discharge the stator 41 of top after the second level supercharging through the stator 41 of top.Like this, just form two-step supercharging, formed the two-stage sliding vane pump.If the supercharging multiple of single-stage sliding vane pump is m, then pass through the supercharging of two-stage axial flow sliding vane pump after, the whole supercharging multiple of sliding vane pump be m square; Through three grades; Then whole supercharging multiple be m cube, through the n level, then the whole supercharging multiple of sliding vane pump is the n power of m; Can realize the relay pressurizing of multistage axial flow sliding vane pump through above design, and effect is remarkable.
As shown in Figure 4, the number of fluid interline counter 271 is two, and dividing plate 27 can be same shape and structure with suction dish and discharge dish; But; Fluid interline counter 271 on the dividing plate 27 is 90 ° with adjacent suction port with the circumferential interval angle of exhaust port, guaranteeing in each stator, and can both image pattern 2 and single-stage sliding vane pump that kind shown in Figure 3; Suction port is connected with the low pressure chamber of stator, and exhaust port is connected with the hyperbaric chamber of stator.Each bore of stator is the identical eccentric chamber of shape, along the circumferential direction, two neighbouring pump cases that direction is set is vertical each other, be connected with the low pressure chamber of stator to cooperate suction port, exhaust port is connected with the hyperbaric chamber of stator.Certainly; Can also can be one with exhaust port 21 by suction port 71; Suction port 71 is arranged on the suction dish 7; Exhaust port 21 is arranged on the discharge dish 2, and the number of fluid interline counter 271 is one, and the fluid interline counter 271 on the dividing plate 27 is 180 ° with the adjacent suction port and the circumferential interval angle of exhaust port.Live axle revolves and turns around, and sliding vane pump sucks discharges once.Be provided with two or be provided with one about suction port 71 and exhaust port 21, can confirm according to the discharge capacity of lifting.
Among Fig. 4; Two said stators are connected according to the direction from the head end to the tail end from bottom to up successively; Each said stator and adjacent suction dish and discharge dish form the inner chamber of tubular; Be provided with the rotor that is enclosed within on the said live axle in each inner chamber, said rotor is between said suction dish and said discharge dish.According to Fig. 4, we it will also be appreciated that two or more dividing plates are set forms triplexes or multistage pump more.Because the different head pressures that need of well depth are different, promptly well needs head pressure big more more deeply, and theoretical according to the series connection of pumps pressure gradient, so required pump stage number is also many more, this multistage sliding vane pump can adapt to the use of deep-well.
Further, as shown in Figure 1, said sliding vane pump 15 is connected the below of said oil pipe 13, and the outlet of pump barrel is communicated with oil pipe, and pump barrel is connected through oil tube buckle with oil pipe, can adopt the various suitable methods of existing technology about pump barrel and being connected of oil pipe.Said sliding vane pump is anchored on the inwall of production string 12 through anchor 16; Anchor 16 has oil tube buckle with sliding vane pump 15 pump barrel lower ends; Directly be connected with anchor through oil tube buckle sliding vane pump 15, anchor 16 fixedly sliding vane pump pump case when guaranteeing pump work does not rotate.
Further, as shown in Figure 1, said crude oil hoisting system also comprises: production tree 11; Be arranged on the well head of oil well; Driving head 10 for well mouth of oil well rotary driving part branch, comprises motor, retarder etc.; Be supported and fixed on the said production tree 11 and be positioned at the top of said oil pipe 13, be used to drive sucker rod and rotate; Sucker rod 14 extend in the said oil pipe 13 and is connected between the live axle 8 of said driving head 10 and said sliding vane pump.Driving head 10 drives sucker rod 14, pump shaft 8, rotor 5, slide plate 9 rotations when rotating.Pump shaft 8 (also claiming live axle) is under power transmission; Drive epitrochanterian slide plate 9 and in the active chamber of stator 2, rotate, stator 2 inner chambers adopt ellipsoid, force slide plate 9 to produce radial motion; When slide plate duct through suction dish 7 when big chamber section (low pressure chamber) is rotated sucks crude oil; When slide plate when loculus section (hyperbaric chamber) is rotated just through the duct discharge side of discharge dish 7 in crude oil because the rotation that rotor does not stop, crude oil is constantly suction and discharge just; Crude oil in the down-hole oil reservoir 17 are delivered to ground production tree 11 through oil pipe 14 be dispensed into crude oil measurement station and accumulator plant again, its is all different with the screw pump principle with the used latent centrifugal pump of plunger oil-well pump, electricity in existing oil field.
The present invention also proposes a kind of method of utilizing the sliding vane pump conveyance fluid; Said sliding vane pump has the stator of tubular; Be provided with live axle in the said stator, the said method of utilizing the sliding vane pump conveyance fluid sucks and discharges fluid to carry out lifting from the end direction of said stator.To shown in Figure 4, the present invention only is not limited to and sucks and the discharge fluid from end cap (i.e. suction dish and discharge dish) like Fig. 1, and the present invention can also carry from top to bottom.As long as the method that can suck and discharge fluid from the end direction of said stator is to carry out pumping; No matter whether sliding vane pump is provided with end cap or suction dish and discharge dish; Whether pipe fluid does not pass through end cap or suction dish and discharge dish; Not pipe end-cap put down or arc, the present invention can both realize that end is to sucking and discharge fluid.Generally; The suction of fluid with discharge the axial consistent or approaching of direction and live axle 8, thereby sliding vane pump of the present invention also (again) can be called the axial flow sliding vane pump; Main point is to sucking and discharge fluid; No matter suck and discharge the direction of fluid and the angle of live axle, for example can with live axle 8 axially intersect 15 degree, 30 degree, 60 degree etc., all distinguish obvious with the bypass type structure that existing side direction at pump case sucked and discharged fluid; Only the suction of fluid with discharge direction and the axial consistent of live axle 8 or near the time, sliding vane pump more compact structure of the present invention.
Further, as shown in Figure 4, the stator of a plurality of tubulars is set in said sliding vane pump; A plurality of said stators are connected according to the direction from the head end to the tail end from bottom to up successively; Each said stator all adopts from the end direction of said stator and sucks and discharge fluid carrying out lifting, and fluid is sucked sliding vane pump by the stator of below, is discharged sliding vane pump 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, and the fluid quilt of the stator suction of the top stator of top again sucks to form the relay of suction and discharge, is discharged by the stator of the top up to the fluid that sucks.Can realize the relay pressurizing of multistage axial flow sliding vane pump through above design, realize supercharging and relay between the pumps at different levels, with respect to the series connection of a plurality of single-stage pumps, structure is simpler, and cost is lower, and pressurized effect is remarkable.
The above is merely the schematic embodiment of the present invention, is not in order to limit scope of the present invention.For each constituent element of the present invention can make up under the condition of not conflicting each other, any those skilled in the art, equivalent variations of under the prerequisite that does not break away from design of the present invention and principle, having done and modification all should belong to the scope that the present invention protects.
Claims (7)
1. a crude oil hoisting system is characterized in that, said crude oil hoisting system comprises: oil pipe; With the oil well pump that said oil pipe is connected, said oil well pump is a sliding vane pump, and said sliding vane pump comprises: the stator of a plurality of tubulars; A plurality of said stators are connected according to the direction from the head end to the tail end from bottom to up successively, live axle, and the length direction of the parallel a plurality of said stators in edge is located in a plurality of said stators, the lower end of each said stator is provided with the suction dish; The upper end of each said stator is provided with the discharge dish, and each said stator and adjacent suction dish and discharge dish form the inner chamber of tubular, are provided with the rotor that is enclosed within on the said live axle in each inner chamber; Said rotor is between said suction dish and said discharge dish, and said suction dish is provided with the suction port that sucks crude oil, and said discharge dish is provided with the exhaust port of discharging crude oil; Wherein, In adjacent two said stators, the discharge dish of the stator of the below while, the exhaust port while of the stator of below was as the suction port of the stator of top as the suction dish of the stator of top; Said sliding vane pump has the passage of conveyance fluid from bottom to up, and the passage of said conveyance fluid is arranged in the inner chamber of the stator of each said tubular.
2. crude oil hoisting system as claimed in claim 1; It is characterized in that; Each said rotor edge is circumferentially with slide plate, in each said stator, and the inner chamber contact seal of said slide plate and said stator; Said sliding vane pump also comprises the pump case that is set in the outer tubular of a plurality of said stators; Each said suction dish is respectively equipped with the axis hole that said live axle passes with each said discharge dish, is provided with bearing in each said axis hole, and each said suction dish all is positioned at said pump case with each said discharge dish and is connected with said live axle through bearing respectively.
3. crude oil hoisting system as claimed in claim 1 is characterized in that said sliding vane pump is connected the below of said oil pipe, and said sliding vane pump is anchored on the inwall of production string through anchor.
4. crude oil hoisting system as claimed in claim 1; It is characterized in that said crude oil hoisting system also comprises: production tree is arranged on the well head of oil well; Driving head; Be supported and fixed on the said production tree and be positioned at the top of said oil pipe, sucker rod extend in the said oil pipe and is connected between the live axle of said driving head and said sliding vane pump.
5. crude oil hoisting system as claimed in claim 1 is characterized in that, each said stator has two suction ports and two exhaust ports.
6. method of utilizing the sliding vane pump conveyance fluid; Said sliding vane pump has the stator of tubular, is provided with live axle in the said stator, it is characterized in that; The said method of utilizing the sliding vane pump conveyance fluid sucks and discharges fluid to carry out lifting from the end direction of said stator; The stator of a plurality of tubulars is set in said sliding vane pump, and a plurality of said stators are connected according to the direction from the head end to the tail end from bottom to up successively, and each said stator all adopts from the end direction of said stator and sucks and discharge fluid to carry out lifting; Fluid is sucked sliding vane pump by the stator of below; Discharged sliding vane pump 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; The fluid of the stator suction of top is discharged by the stator of the top up to the fluid that sucks by the relay of stator suction to form suction and to discharge of top again.
7. the method for utilizing the sliding vane pump conveyance fluid as claimed in claim 6 is characterized in that, each said stator adopts two suction ports to suck fluid, adopts two exhaust ports to discharge fluid.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210054052.8A CN102536807B (en) | 2012-03-02 | 2012-03-02 | Raw oil lifting system and method for conveying fluid by utilizing 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 | Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536807A true CN102536807A (en) | 2012-07-04 |
| CN102536807B CN102536807B (en) | 2015-01-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210054052.8A Active CN102536807B (en) | 2012-03-02 | 2012-03-02 | Raw oil lifting system and method for conveying fluid by utilizing sliding vane pump |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20150027686A1 (en) |
| CN (1) | CN102536807B (en) |
| WO (1) | WO2013127183A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127183A1 (en) * | 2012-03-02 | 2013-09-06 | 中国石油天然气股份有限公司 | Crude oil lifting system and method utilizing vane pump for conveying fluid |
| 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 |
| CN106762614A (en) * | 2017-01-16 | 2017-05-31 | 丹东纳泰石油机械有限公司 | A kind of oil well recovers the oil and lifts double-acting vane pump |
| CN107989580A (en) * | 2016-10-27 | 2018-05-04 | 中国石油化工股份有限公司 | A kind of bias jet stream lifting device and method |
| 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 |
| 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 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112019000513B1 (en) * | 2016-07-13 | 2020-10-20 | Fmc Technologies, Inc | system to install an electrically submersible pump in a well |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107989580A (en) * | 2016-10-27 | 2018-05-04 | 中国石油化工股份有限公司 | A kind of bias jet stream lifting device and method |
| 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 |
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| CN106762614A (en) * | 2017-01-16 | 2017-05-31 | 丹东纳泰石油机械有限公司 | A kind of oil well recovers the oil and lifts double-acting vane pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2013127183A1 (en) | 2013-09-06 |
| CN102536807B (en) | 2015-01-21 |
| US20150027686A1 (en) | 2015-01-29 |
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