CN102076929B - liquid rod pump - Google Patents
liquid rod pump Download PDFInfo
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- CN102076929B CN102076929B CN200980125101.9A CN200980125101A CN102076929B CN 102076929 B CN102076929 B CN 102076929B CN 200980125101 A CN200980125101 A CN 200980125101A CN 102076929 B CN102076929 B CN 102076929B
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- downhole hardware
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- 239000007788 liquid Substances 0.000 title description 20
- 239000012530 fluid Substances 0.000 claims abstract description 241
- 238000005553 drilling Methods 0.000 claims abstract description 44
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- 230000033001 locomotion Effects 0.000 claims description 4
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- 238000002156 mixing Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 2
- 238000000605 extraction Methods 0.000 abstract description 10
- 238000005086 pumping Methods 0.000 description 23
- 239000011435 rock Substances 0.000 description 14
- 238000001914 filtration Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
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- 238000001816 cooling Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
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- 239000000203 mixture Substances 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention includes downhole hardware, this downhole hardware comprises at least one piston and adopts power fluid to produce fluid from drilling well extraction.
Description
The cross reference of related application
This application claims the U.S. Provisional Patent Application sequence number No.61/133 that the name submitted on June 30th, 2008 is called " liquid rod pump ", the name submitted on November 21st, 373 and 2008 is called the U.S. Provisional Patent Application sequence number No.61/199 of " liquid rod pump ", the priority of 853 and rights and interests, be herein incorporated its manual and claim by reference.
Technical field
The embodiments of the present invention relate to pumping and the extraction of underground liquid, particularly relate to the application of hydraulic principle, to be convenient to the pumping of liquid when not adopting sucker rod.
Background technology
Existing at present the darker well of pumping in the oil industry, producing larger volume and can from tiltedly creeping into and the demand of the pump of extraction fluid bending drilling well.Current technology can not solve and enable water raise the problem while of being greater than 500 feet, the sun and wind being applied to power source.Also have problems when not adopting extra pump installation help process in some field processing unwanted fluid at present.The embodiments of the present invention can meet above-mentioned all demands, simultaneously still Energy Efficient more.
At present in the oil industry, the main pump type for darker well depends on the oil pumper used in the oil industry in 20 beginnings of the century.Creep into downwards in situation, technology comparatively early has also been used for adopting fluid that pressure is passed to pump.
For current horizontal drilling drilling cramp, oil pumper or pumping rod type pump are not effective for this drilling kind.Due to the mechanical connection from ground to downhole hardware, oil pumper is locked in certain accurate distance of will advance, and at horizontal level or difficult during rocking beam in deviated well.The embodiments of the present invention have the ability changing stroke and cycle in each pump, which eliminate the wearing and tearing of bar, and improve efficiency and reduce the wearing and tearing of descending pump.
Current technology does not have backwash filtration system, and this does not allow pump by backwash, therefore produces maintenance issues.
Current technology also requires that whole pump and pipe-line system are drawn out for maintenance, and does not have the ability of displacement fluids, and therefore this produces potential environmental problem when extracting bar and pipe-line system from eyelet.
Therefore, current existence is to the demand of following invention, this invention provides the structure meeting industrial requirement, as the demand to energy efficiency, horizontal pumping means leicht fallen D/A, the unwanted fluid processed from a region pump out the ability of valuable fluid from different regions simultaneously.Current also exist providing with the sun and/or wind the demand of pump that the pump of power must be higher than height possible at present by fluid lifting.
Summary of the invention
The embodiments of the present invention provide a kind of pump, and it is outstanding that it raises technology than current fluid, particularly pumps look than pumping rod type.The embodiments of the present invention preferably do not need to use sucker rod or oil pumper on the ground.Each embodiment also needs little maintenance cost, because they can be driven by fluid, and mechanical part keeps centering when they are advanced; Therefore, few to the wearing and tearing of moving-member, particularly for offsetting well.
One embodiment of the present invention can be provided with traditional oil field equipment, it adopts downhole hardware, comprise pipe-line system, preferably the pipe-line system of about 2 to 5 inches, and the pipeline of more preferably from about 23/8 (2.375) or about 27/8 (2.875) inch.Less conduit, the preferably pipe-line system of about 0.25 to 2 inch, more preferably from about the interior caliber (flexible or rigid conduit) of 1 inch or less inserts larger pipeline, to form the annular region for the production of exploitation.Downhole hardware preferably adopts traditional close tolerance piston cylinder and piston, and has disequilibrium upwards, and this allows downhole hardware to be parked in the top of its stroke when its nonoscillatory.Different from oil pumper, this pumping technology allows long-slow stroke of downhole hardware suction or short-fast stroke.Due to fluid displacement design, downhole hardware does not require one to one displacement ratio from ground to downhole hardware.
The embodiments of the present invention preferably improve the energy efficiency of about 40% than known pump.
One embodiment of the present invention provide a kind of pumping system of improvement, and it saves energy, lightweight, and requires less maintenance than traditional pumping system.
Another embodiment of the invention provides the design of a kind of pumping system, and unwanted fluid is assigned to different subterranean zones by it while a subterranean zone pumping.
Another embodiment of the present invention provides a kind of backwash filtration system, and it prevents traditional plugged filter, sealing and pump to lack fluid.
Embodiments of the present invention preferably include a kind of pumping system, and it does not have mechanical movement between ground and downhole hardware, support the emerging market of the inclined drilling of drilling well, to maximize the efficiency of Production Regional.
Another embodiment of the invention provides variable volume pumping system, can adjust from ground to it, and does not need close pump or pump is set to timing means.Variable volume pumping system is used in particular for the water pumper of the isolated area being arranged in the earth.
Another embodiment of the present invention provides high power capacity pumping system, and it by utilizing the twocouese of pump stroke with low-yield pumping large volume, can increase efficiency and allowing it to provide power by solar energy and/or wind energy thus.
Yet further embodiment of the invention preferably includes the method dragging dry tubing string (not comprising the pipeline of fluid) during the course.
One embodiment of the present invention are preferably a kind of for removing the method for producing fluid from leading to Production Regional with the drilling well of leading to disposal area.The method comprises the steps: to separate Production Regional and disposal area; Production fluid is pushed to production system from Production Regional during piston stroke; And during the same one-stroke of piston, disposal fluid is pushed disposal area.These two regions adopt packer to separate.This embodiment can also comprise employing screen filter systematically backwash production fluid, so that particulate does not enter this system.Disposal and output ratio can also be adjusted.Described adjustment is preferably based on the volume of the disposal fluid in power/disposal fluid tank.
Another embodiment of the invention is preferably a kind of for removing from the drilling well of leading to Production Regional and disposal area the equipment producing fluid.This equipment preferably includes: packer, for described Production Regional and described disposal area being separated; Piston, wherein during the stroke of described piston, described piston pushes production fluid to production system from described Production Regional.During the same one-stroke of described piston, disposal fluid also pushes in described disposal area by described piston.Therefore, fluid is produced in extraction, and disposes fluid during the same one-stroke of piston.This embodiment can comprise the screen filter producing fluid for backwash alternatively, to guarantee not having particulate in fluid stream.
Another embodiment of the present invention is a kind of method for removing fluid from drilling well.The method comprises the steps: downhole hardware to be at least partially disposed in drilling well; Promote the piston of downhole hardware along first direction and production fluid is pushed production system from Production Regional; And along second direction promote downhole hardware described piston and production fluid is pushed production system from Production Regional.The described piston of downhole hardware preferably moves back and forth, to produce fluid in each stroke of described downhole hardware.
One embodiment of the present invention comprise a kind of system for removing fluid from drilling well.This system comprises: downhole hardware, is positioned at drilling well at least in part; Piston, be arranged in described downhole hardware, wherein said piston is promoted by along first direction, pushes production system thus by production fluid from Production Regional, and described piston is gone back to be promoted along second direction, push more producing fluid production system from Production Regional thus.In this embodiment, described piston preferably moves back and forth, to produce fluid in each stroke of described downhole hardware.
Another embodiment of the invention is a kind of method for moving fluid from drilling well.The method comprises the steps: the downhole hardware comprising pipeline and one or more piston to be at least partially disposed in drilling well; Apply motive fluid, this motive fluid moves described one or more piston of downhole hardware; Production fluid is pushed to the ground of drilling well; And valve to be arranged on downhole hardware or near, wherein said valve the ground place of described drilling well or near start releasedly, the motive fluid be included in described pipeline is discharged thus, so that when removing described pipeline from described drilling well by described valve release motive fluid when removing described pipeline from described drilling well.Valve described in this embodiment is preferably L shape valve.When removing described pipeline from described drilling well, described pipeline is preferably drying duct.The downhole hardware of this embodiment preferably utilizes the seat at the bottom place of downhole hardware to save and is fixed in described drilling well.
Another embodiment of the present invention is a kind of equipment for moving fluid from drilling well.This equipment preferably includes: comprise the downhole hardware being at least partially disposed on one or more piston in drilling well and pipeline; Motive fluid, wherein said motive fluid is mobile described one or more piston in described downhole hardware; Be moved toward the production fluid on the ground of described drilling well; And valve, to be arranged on downhole hardware or near, wherein said valve discharges the motive fluid be included in described pipeline when removing described pipeline from described drilling well.The described valve of this equipment is preferably L shape valve.When removing described pipeline from described drilling well, it is preferably drying duct.Seat joint is fixed on the bottom place of described downhole hardware alternatively.
Target of the present invention, advantage and novel features and other range of application partly propose in following detailed description by reference to the accompanying drawings, and part will become obvious by investigating following explanation for a person skilled in the art, or can be understood by practice of the present invention.The present invention can realize via the means pointed out in the appended claims especially and combination and obtain.
Accompanying drawing explanation
To be bonded to and the accompanying drawing forming the part of this manual illustrates one or more embodiments of the present invention, and its together with manual for illustration of principle of the present invention.Accompanying drawing is only used for the object illustrating one or more preferred embodiments of the present invention, instead of will be interpreted as limiting the present invention.In the accompanying drawings:
Fig. 1 is lateral view, which illustrates one embodiment of the present invention, and wherein pulsar (pulsar) unit is connected to single drilling well, and fluid moves on on ground by this unit, and promotes downhole hardware and move down;
Fig. 2 is lateral view, its one embodiment of the present invention, and wherein pulsar unit promotes in multiple drilling well in each downhole hardware, so that the opposite cycles of the piston in pulsar unit to move down;
Fig. 3 is the sectional view of diagram down-hole pump according to the embodiment of the present invention;
Fig. 4 is the diagram pulsar unit of the production/disposal for fluid according to the embodiment of the present invention and the lateral view of power unit;
Fig. 5 A is the sectional view of diagram production/disposal well lower device according to the embodiment of the present invention, and wherein disposal area is positioned at below Production Regional;
Fig. 5 B is the sectional view of diagram according to the production/disposal well lower device of another embodiment of the present invention, and wherein disposal area is positioned at above Production Regional;
Fig. 6 is the diagram sectional view utilizing the pulsar unit of fluid-mixing and the power unit by the unnecessary fluid of new sliding plunger design release according to the embodiment of the present invention;
Fig. 7 illustrates the enlarged drawing of illustrated pulsar unit in Fig. 6; And
Fig. 8 is the sectional view of the twin product extracting unit in down-hole according to the embodiment of the present invention.
Detailed description of the invention
As used in whole manual and claim, indefinite article refers to one or more.
As used in whole manual and claim, " power unit " refers to can at least in part for fluid provides any device of pump action, method, equipment, system or its combination.
As used in whole manual and claim, " pulsar " refer to can move fluid any device, method, equipment, system or its combination etc.
As used in whole manual and claim, pipeline and pipe to provide wide implication, and comprise can any device of transmitting fluid, method, equipment, system or its combination etc., include but not limited to pipeline, pipe-line system, passage, conduit, tubing string or its combination etc., it, by can any material of stream be provided for fluid to make at least temporarily, includes but not limited to metal, synthetic, synthetic material, plastics or its combination etc.
As used in whole manual and claim, " downhole hardware " refers to the device be at least partially disposed in well, method, structure, equipment, system or its combination etc.
As used in whole manual and claim, " piston " refers to can to the device of pressurized with fluid, method, structure, equipment, system or its combination.
As used in whole manual and claim, " sequence system " refer to can the device of sensitizing pulse star, method, structure, equipment, system or its combination, include but not limited to pressure sensor or a series of pressure sensor.
As used in whole manual and claim, " production system " refers to and can store or the further device of process for producing fluid, method, structure, equipment, system or its combination, includes but not limited to fluid reservoir, ground, pipeline, heat interchanger, pump and combination thereof.
As used in whole manual and claim, " packer " to provide wide in range implication, and comprise can by the region of in well and another zone isolation in well or any device be separated, method, structure, equipment, system or its combine.Such as, the Production Regional in drilling well and disposal area can be isolated by packer.
Closed system
With reference to Fig. 1, ground power unit 10 is preferably the closed system of hydraulic fluid.Hydraulic fluid is used for power to be passed to pulsar 18 from hydraulic pump 14, and both hydraulic pump 14 and pulsar 18 are preferably placed at or close surface of creeping into.In a preferred embodiment, hydraulic fluid does not mix with motive fluid.Motive fluid transmits the energy from pulsar 18, and provides downward pressure on downhole hardware 200 (see Fig. 2).In this embodiment, hydraulic fluid preferably also not with production fluid chemical field.Produce fluid and be pumped into ground product for adopting embodiments of the present invention from subterranean strata.Motive fluid is also preferably closed system.In fact motive fluid promotes the motion of downhole hardware 200, and in one embodiment, forms primarily of water.Because water is almost incompressible, therefore with very high efficiency and considerably less compression, pressure is passed to downhole hardware 200 immediately.If there is any fluid loss do not expected, then dynamic-fluid piston 40 forms vacuum when it returns reset position, therefore fills any fluid gap in power pipe 204.
Fig. 1 illustrates embodiments of the present invention, and it comprises power unit 10 and pulsar unit 18, and pulsar unit 18 moves fluid on the ground and promotes downhole hardware 200 and moves back and forth.
Fig. 1 illustrates power unit 10, and it preferably includes motor 12, is preferably standard motor.Motor 12 can be typical exchange (AC) or direct current (DC) motor, and it allows to adopt solar energy or wind energy or man power source.Motor 12 is fixed to hydraulic pump 14, and hydraulic pump 14 is supported by liquid reserve tank 16.Liquid reserve tank 16 is filled with hydraulic fluid, and provides hydraulic drive for pulsar unit 18.Pulsar unit 18 is preferably closed system, and therefore hydraulic fluid is not with motive fluid or produce fluid chemical field.Pipeline 20 is fixed to liquid reserve tank 16, and hydraulic fluid is moved to the hydraulic cylinder 24 sealed with end cap 28 from liquid reserve tank 16.Hydraulic piston 22 is contained in hydraulic cylinder 24.Liquid reserve tank 16 and hydraulic cylinder 24 can by can keeping hydraulic fluid and making at any suitable material of the high pressing operation of needs.Hydraulic valve system 26 starting impulse star 18, pulsar 18 makes connecting axle 30 oscillate and circulation.Valve system 26 preferably by the various Stress control in closed power system, and is started by the surge pressure (spiked pressure) from downhole hardware 200.As shown in Figure 2, downhole hardware 200 is preferably advanced its whole length, until lower piston 234 reduces as far as possible, therefore increases the pressure in power pipe 204.Pressure peak boot sequence system subsequently.Sequence system makes hydraulic fluid begin to flow through hydraulic valve system 26 and the direction of the ground hydraulic piston 22 that reverses subsequently.Sequence system can be electric, machinery or its combination.
Motor 12 preferably provides the power driving hydraulic pump 14, and hydraulic fluid is pumped in hydraulic cylinder 24 by hydraulic pump 14, and hydraulic cylinder 24 is subsequently to hydraulic piston 22 transmission of pressure.Hydraulic piston 22 moves preferably by connecting axle 30 and transmits power.Axle 30 moves by centre coupler 32.Centre coupler 32 is preferably with seal member sealing, and described seal member is made up of any applicable material of the pressure differential be designed between maintenance two regions.Connecting axle 30 is preferably fixed to motive fluid cylinder 34 and hydraulic cylinder 24 simultaneously.Connecting axle 30 preferably start and when hydraulic piston 22 starts to move to motive fluid cylinder 34 in power pipe 204 mineralization pressure.Prevent the pressure in motive fluid cylinder 34 to be pushed rearward to hydraulic cylinder 24 for dynamafluidal end cap 36, and promote all pressure thus along concentrating in downward direction.Steam vent 38 allows motive fluid cylinder 34 air-breathing and exhaust, and prevents dynamic-fluid piston 40 from locking when power pipe 204 starts to increase pressure.Pressure is passed to downhole hardware 200 and is applied to top piston 216 (see Fig. 2), and it starts to move down in drilling well.When piston 216,222 and 234 is pushed down, pressure promotes to produce fluid and annularly moves outwardly and into the closure casing in liquid reserve tank 16 in region 210.Producing fluid subsequently can as the cooling unit of hydraulic fluid of the second housing being arranged in liquid reserve tank 16, cooling fluid hydraulic fluid thus.Produce fluid also to be heated by hydraulic fluid, make to produce fluid and more easily process in downstream and be separated.Hydraulic fluid and production fluid are preferably isolated from each other in liquid reserve tank 16.Produce fluid preferably move by liquid reserve tank 16 and enter storage bin (not shown).
Fig. 2 illustrates one embodiment of the present invention, and it comprises the downhole hardware 200 being connected to the pulsar unit 18 seen in Fig. 1.
In one embodiment of the invention, as shown in Figure 2, safety valve 202 is preferably L shape valve, and is arranged in power pipe 204, between the top of downhole hardware 200 and the starting position of power pipe 204.When downhole hardware 200 is pulled to ground, such as, when needing repairing, safety valve 202 allows motive fluid to discharge from power pipe 204.Safety valve 202 allows repairman to drag not comprise dry tubing string, the pipeline of fluid, instead of wet tubing string.The ability dragging dry tubing string prevents motive fluid from spilling on ground.Preferably, safety valve 202 is close to install at first, and it is reversed subsequently, and power pipe 204 upward sliding subsequently, upwards hauls out well by power pipe 204.When power pipe 204 is upwards dragged, it, through the dynamafluidal air chimney 206 and 208 of discharge, therefore upwards drags the tubing string of " drying ".In one embodiment, when removing pipeline, maintenance personal does not drag wet tubing string.
Annular region 210 runoff yield body of making a living upwards is advanced by it and arrives the region on ground.Downhole hardware 200 is preferably fixed with the seat joint 212 at place bottom downhole hardware 200.Seat joint 212 can also be arranged on the top of downhole hardware 200, therefore hangs downhole hardware 200 from seat joint 212.Annular region 210 comprises the region between power pipe 204 and Outer Tube 214.When downhole hardware 200 is fixed, produce fluid and be retained in annular region 210, or if downhole hardware 200 is not fixed, production release of fluid is in rock stratum.
Downhole hardware 200 preferably receives the pressure from pulsar unit 18 in top piston 216.When pressure is applied to top piston 216, it moves down, and connecting axle 218 and piston 222 and 234 also move down.Piston 216 is preferably kept going up in place by cylinder 220.Pressure in top piston 216 is converted into thrust, and starts piston 222.Piston 222 is preferred for equilibrium pressure.When downhole hardware 200 is static, downhole hardware 200 is formed larger than downward thrust to lifting force, because formation area 224 has the pressure less than downhole hardware 200, it is formed upwards uneven on downhole hardware 200.Therefore, the energy only obtained from ground is enough to move down piston 216,222 and 234.The top of piston 222 is exposed to rock stratum preferably by air chimney 226.Coupling 228 sealing air cylinder 220, poor at the top mineralization pressure of piston 222 thus.When the top of piston 222 is exposed to rock stratum, the bottom of piston 222 is exposed to annular region 210 via openings 230, and this adopts coupling 232 to be formed and upwards pressure, with separation of the fluid pressure.Coupling 232 is designed to prevent pressure equal in the region 224 being exposed to rock stratum.The top of piston 234 is exposed to rock stratum, and the bottom-exposed of piston 234 to producing fluid, and is used for production fluid being shifted out valve gear 236 and upwards moving to annular region 210.Produce fluid preferably move into and shift out production chamber 238.Valve gear 236 preferably includes the one way stop peturn valve between chamber 238 and annular region 210, wherein produces fluid and preferably marches to annular region 210 from chamber 238.Valve gear 240 also comprises one way stop peturn valve, and it prevents the production fluid in chamber 238 from returning to rock stratum.When downhole hardware 200 moves down, downward pressure promotes valve gear 236 and opens, and thus production fluid is upwards transported to annular region 210.When downhole hardware 200 is upwards retracted, power upwards opens valve gear 240, is received chamber 238 by production fluid after filtering via filtration system 242 at production fluid from rock stratum.
Filtration system 242 preferably includes the mesh filters on the bottom being arranged on downhole hardware 200.Filtration system 242 can not be blocked, because the epicoele of downhole hardware 200 and rock stratum ventilate.This ventilation allows fluid oscillating turnover downhole hardware 200.Downward pressure from downhole hardware 200 produces the outward pressure from the fluid in chamber 238, blows away any chip that may accumulate near strainer, and prevents the unfiltered fluid in epicoele 224 and 244 from flowing to into downhole hardware 200.
Multiple drilling well
With reference to Fig. 3, one embodiment of the present invention comprise power unit 300 and pulsar 312.Downhole hardware 302 and 304 preferably only with a surface units, namely power unit 300 operates together with pulsar 302, improves the efficiency of pulsar 312 thus further.In a kind of structure, when utilizing power unit 300, pulsar 312 can be used for pump and take out two drilling wells or more drilling well.In this embodiment, vibrate before and after piston 306 and 308, on the downward stroke of two downhole hardwares 302 and 304, fluid is produced in extraction thus.Produce fluid to be used for subsequently cooling the hydraulic fluid in liquid reserve tank 314, produce fluid simultaneously and heated, before delivering to case 316 at production fluid, the You Heshui in production fluid is more easily separated.
The disposal area of isolation
With reference to Figure 4 and 5 A-5B, another embodiment of the invention comprises pulsar 402 and downhole hardware 500, and it allows the production recovering fluid from the region of drilling well, has the ability disposing unwanted fluid in the second area of this drilling well simultaneously.In this embodiment, once piston 527 reduces as far as possible, pressure reaches peak value in power pipe 504, opens pressure safety valve 522 and promote undesired motive fluid to be entered the area of isolation being applicable to disposing unwanted fluid by packer 508.When all unwanted fluids are all processed in disposal area 526, dynamic-fluid piston 422 will upwards be resisted against on end cap 426, produce extra pressure peak, this trigger sequence system, with inversion pulse star 420, and introduce extra motive fluid by opening valve 430, circulate for the next one.Pulsar 402 has two kinds of working pressure levels, and provides two kinds of different functions, and a kind of stress level is used for producing fluid from rock stratum extraction, and another kind of stress level is for disposing unwanted fluid.
Fig. 4 illustrates one embodiment of the present invention, and it comprises power unit 400 for extraction underground liquid and pulsar 402.
This embodiment creeps in situation two regions preferably utilizing drilling well downwards, extract out producing region of fluid from rock stratum, simultaneously by unwanted fluid management in the second area of rock stratum.
Power unit 400 and pulsar 402 preferably include motor 404.Motor 404 is preferably standard weather proof AC or DC power supply.Power unit 400 preferably includes liquid reservoir 406, and it preferably comprises hydraulic fluid.Liquid reservoir 406 can be made by keeping any suitable material of hydraulic fluid.Liquid reservoir 406 has relatively low pressure, and can be configured to have the extra chamber allowing production fluid to flow through, and forms the heat interchanger being used for cooling fluid hydraulic fluid thus.In this embodiment, motor 404 produces power, and power is provided to hydraulic pump 408.Hydraulic fluid is pumped to unit 410 via hydraulic pump 408, and it through high pressure hydraulic lines 412 time produce high pressure.Pipeline 412 can by making any material of handle high voltages.Hydraulic fluid is supplied to the hydraulic cylinder 414 supported by end cap 416 by pipeline 412.Hydraulic fluid presses against on hydraulic piston 418, vibrates before and after hydraulic piston 418.Hydraulic piston 418 is preferably installed as has tight tolerance gap, and is connected to connecting axle 420.Hydraulic piston 418 shifts to connecting axle 420, connecting axle 420 subsequently by power transmission to dynamic-fluid piston 422.This action is being remained on mineralization pressure on the motive fluid cylinder 424 on correct position by end cap 426, until motive fluid/disposal fluid is discharged by outlet 428.
When pulsar 402 move back arrive reset position to hydraulic cylinder 414 time, one way stop peturn valve 430 is preferably open, to change motive fluid in motive fluid cylinder 424 when any less desirable loss appears in motive fluid during pulsar 402 backward stroke.Dynamafluidal any space can produce vacuum, and this allows one way stop peturn valve 430 to open, and guarantees that the downward stroke of pulsar 402 makes full use of motive fluid thus, to guarantee that downhole hardware 500 is advanced designed complete travel distance, namely reduces as far as possible.
When dynamic-fluid piston 422 vibrates towards end cap 426, produce fluid and upwards advance to annular region and enter production case 432.Motive fluid/disposal fluid is separated from production fluid and is placed in case 434, and is reused by pipeline 436, to fill motive fluid cylinder 424, for starting another circulation.In this embodiment, motive fluid/disposal fluid is used for starting downhole hardware 500.Production fluid is preferably raised to ground, and in disposal area, dispose unwanted fluid by downhole hardware 500.Disposal area can on or below Production Regional.Fig. 5 A illustrates wherein disposal area of the present invention and is positioned at embodiment under Production Regional.Fig. 5 B illustrates wherein disposal area of the present invention and is positioned at embodiment on Production Regional.
By adjusting the reciprocal set point of piston 418 and 422, the volumetric displacement of relevant to the amount of the production fluid the entering case 432 disposal fluid removed from case 434 can be adjusted, to produce the production/disposal ratio of optimum.When case 434 is close to its capacity limitation, this adjustment allows to dispose in disposal area more to dispose fluid.Alternatively, when 434 close to dummy status, fluid management rate can be reduced.Those skilled in the art will easily recognize, the various ways for this reciprocal set point comprises electronic sensor and/or changes the physics of connecting axle 420, piston 418 and/or 422 and lid 416 and 426.In one embodiment, electronic circuit is preferably set to adjust reciprocal set point based on the fluid level of case 434 and/or case 432 or the standard of alternatively specifying based on some other measured value or user.
Fig. 5 A and 5B illustrates one embodiment of the present invention, and it comprises produces/disposal well lower device 500 with the dual purpose of the pulsar 402 in Fig. 4 and power unit 400 associated working.Production fluid pump is preferably delivered to case 432 from a region of rock stratum by downhole hardware 500, and in another region of rock stratum, disposes unwanted fluid on the same one-stroke of pulsar 402.
In one embodiment of the invention, produce fluid and be passed to ground by annular region 502, the region that this annular region 502 is power pipe 504 and produces between pipe 506.Power pipe 504 preferably includes about 0.5 to 5 inch of pipe, more preferably from about 0.75 to 3 inch of pipe, most preferably from about 1 inch of pipe, and production pipe 506 preferably includes about 0 to 5 inch of pipe, more preferably 2 to 4 inches of pipes, most preferably from about 27/8 (2.875) inch pipe.Downhole hardware 500 is preferably arranged in the well with packer 508.Standard device can be used for isolate production zones and disposal area.Downhole hardware 500 is preferably provided with the pipeline that can transmit fluid at the target pressure in order.
Disposal/kinetic current body cavity 520 is preferably closed system, and the pressure from ground is passed to the top of piston 510 by it.Top attachment device 512 preferably maintains the separation of pressure.The bottom-exposed of piston 510 is to annular region 502.Production fluid in annular region 502 produces thrust upwards on piston 510 and 514.
Region below piston 514 pressure between coupling 516 isolation piston 514 and 527 and fluid.Air chimney 518 comprises motive fluid/disposal fluid, and is used as the connecting rod to piston 510,514 and 527.High-pressure safety valve 522 is arranged on the bottom of air chimney 518, for disposing fluid/dynamafluidal disposal, and just open until the pressure in downhole hardware 500 exceedes normal operating production pressure, now high-pressure safety valve 522 is opened and is pushed in disposal area by packer 508 by unnecessary disposal fluid.
In embodiments of the present invention, disposal/motive fluid applies downward pressure on piston 510, and piston 510,514 and 521 is advanced downwards.Production fluid is pushed in annular region 502 by flap valve 524 by this downward pressure.When piston 510,514 and 527 has arrived the bottom of target range, piston 510,514 and 527 has reduced as far as possible, and in downhole hardware 500 mineralization pressure, until from disposal fluid/dynamafluidal downward pressure exceed production work pressure.Now, high-pressure safety valve 522 is opened, and by packer 508 by unwanted fluid deposition in disposal area 526.High-pressure safety valve 522 open boot sequence system, and dynamic-fluid piston 422 (Fig. 4) shifts to hydraulic piston 418, thus mobile piston 510,514 and 527 in upward direction.One way stop peturn valve 528 absorbs when each vibration of downhole hardware 500 produces fluid.For the flap valve 524 that the exports opposite side at pipeline, and upwards shift production fluid onto annular region 502.What be connected to valve system 528 is screen filter 530, and it can prevent chip from entering downhole hardware 500.As shown in Figure 5 A and 5B, downhole hardware 500 can be installed as and make disposal area 526 on or below Production Regional 532.
Fig. 6 illustrates one embodiment of the present invention, and it comprises preferred hybrid power fluid and produces fluid and by the power unit 600 of safety valve 604 and 606 release fluids and pulsar 602.Fig. 7 illustrates the enlarged drawing of pulsar 602.
This embodiment of the present invention comprises ground power unit 600, and pulsar 602 is assembled into mixture manufacturing fluid and motive fluid.Power unit 600 preferably includes the motor for power source 616, and it can for being applicable to solar energy or wind energy or manually operated DC motor or AC motor.Alternatively, power unit 600 can only lean on solar energy or wind energy power source to run.Motor to be preferably mounted on hydraulic pressure fuel tank 618 and to be connected to hydraulic pump 620.Hydraulic power pipeline 622 is connected to sequence system 626, and is used for by power transmission to chamber C, with the piston 628,610 and 614 in oscillating impulse star 602.Pulsar 602 preferably includes three fluid cavitys separated (A, B and C), and one of them (chamber C) is preferably the complete closed system of hydraulic fluid.Hydraulic fluid is preferably removed from case 618 via hydraulic pump 620, and is pushed in the C of chamber, promotes piston 628 along the direction towards chamber B, and makes piston 614 promote to be arranged in the fluid of chamber B along pipeline 814.This fluid upwardly piston 810 (see Fig. 8) subsequently, is made the production fluid in the chamber 811 of downhole hardware 800 be pushed along air chimney by valve 804, and is pushed along pipeline 608.Once chamber 811 closes and piston 810 is resisted against on coupling 812, pressure peak is there is in B side, and sequence system 626 starts piston 628, with towards chamber A mobile link axle 624 and piston 610,614 and 628, be positioned at cone valve 702 on piston 614 by opening and send under A side direction and produce fluid thus, and via valve 606, unnecessary fluid is upwards sent to outside the B of chamber.
After unnecessary fluid is discharged by valve 606 and piston 806 and 810 reduces as far as possible, there is another pressure peak, and sequence system 626 reverse directions, connecting axle 624 shifts to pipeline 814 subsequently, and closes cone valve 702.Preferred employing is positioned at stop member on piston 614, bearing, locking device or its combination etc. and closes cone valve 702.Alternatively, can adopt be arranged in chamber B stop member, bearing, locking device or its combination etc. close cone valve 702.Piston 614 is shifted to pressure that pipeline 814 produces along pipeline 814 propelling fluid, and upwardly piston 806 and 810, the fluid from chamber 811 upwards pushes away along air chimney 808 by this, is upwards pushed away along pipeline 608 by valve 804.When unnecessary fluid enters chamber A from pipeline 608, cone valve 700 is opened and unnecessary release of fluid is gone out valve 604.When all unnecessary fluids to be discharged by valve 604 and close when chamber 811, occur another pressure peak, and sequence system 626 promotes piston 628 changes direction.Piston 628 pushes piston 610 to pipeline 614 subsequently, and closes cone valve 700.Cone valve 700 preferably adopts the cut outs such as the stop member be positioned on piston 610, bearing, locking device or its combination.Cone valve 700 can adopt alternatively be arranged in chamber B stop member, bearing, the closedown such as locking device or its combination.Each vibration of pulsar 602 is adopted to repeat this circulation.When identical fluid is used for starting downhole hardware 800, this process continues circulation, and has the ability discharging unnecessary fluid when the up stroke of each circulation.
With reference to Fig. 6-8, this embodiment of the present invention may be used for shallow well, and can adopt rigidity or flexible pipe line transmission of pressure and produce.This embodiment can also be installed as mobile or fixation means.In one embodiment of the invention, the diameter of pulsar 602 preferably about 3 to 20 inches, diameter more preferably from about 5 to 15 inches, diameter most preferably from about 7 to 10 inches.Piston 610 and 614 is preferably installed as has tight tolerance gap with pulsar 602, and therefore the diameter of piston 610 and 614 is preferably close to the diameter of pulsar 602.The diameter of cone valve 700 and 702 preferably about 0 to 4 inch, diameter more preferably from about 1 to 3 inch.Therefore, unnecessary fluid be preferably pushed out be arranged on larger-diameter piston 610 and the cone valve 700 on 614 with 702 relative little diameter.If unit 800 is installed as have flexible pipe line, preferably little hawser is connected to unit 800, and is intertwined with two pipelines, to provide the tensile strength needed during unit 800 is removed.
Fig. 8 illustrates one embodiment of the present invention, and it comprises can from the downhole hardware 800 of the both sides extraction fluid of its stroke.
Fig. 8 is the continuation of illustrated pump assembly in Fig. 6-7.Fig. 8 shows the low portion of this assembly.Unit 800 in this embodiment can produce fluid in every side of its stroke (being called A side and B side).In A side, pipeline 608 receives pressure from ground fluid, and this fluid forces flap valve 804 cuts out, piston 806 and 810 moves down, and by valve 816, fluid is released chamber 820, and upwards pushes away along the pipeline 814 of B side, and fluid is released chamber 826, fill chamber 811 by A side valve 828 simultaneously.
When piston 806 and 810 reduces as far as possible, pressure peak is there is in the A of chamber, this boot sequence system 626, hydraulic fluid is sent in the C of chamber by this sequence system 626 subsequently, and to be dynamically connected axle 624 and piston 610,614 and 628 towards B sidesway, this is along pipeline 814 propelling fluid, and the piston 810 and 806 that moves up, until piston 810 is resisted against on coupling 812.When piston 614 shifts to pipeline 814, the cone valve 700 be arranged on piston 610 is opened, and allows the unnecessary fluid spill valve 604 in the A of chamber.When all unnecessary fluids to be discharged by valve 604 and close when chamber 811, occur pressure peak, and sequence system 626 starts in B side, and promote piston 628 and shift to A side, this closes cone valve 700 and subsequently along pipeline 608 propelling fluid.Fluid forces piston 806 and 810 moves down, and is upwards pushed away by along B side ducts 814 from the fluid in chamber 820.When fluid by under A side direction promote and along B side upwardly time, the cone valve 702 be arranged on piston 614 is opened, and unnecessary fluid is discharged by valve 606.When piston 806 and 810 reduces as far as possible and all unnecessary fluids are discharged by valve 606, occur pressure peak in A side, this trigger sequence system 626, it starts piston 628 to shift to B side.
This embodiment forms two Production Regional, chamber 820 and 811.When downward pressure promotes piston 806 downwards, the fluid from chamber 820 is upwards carried along B side ducts 814 by valve 816.When upward pressure promotion piston 806 moves up, chamber 820 refills production fluid by valve 818.When downward pressure promotes piston 810 downwards, chamber 811 is filled via valve 828 and is produced fluid.When upward pressure promotion piston 810 moves up, the production fluid in chamber 811 moves outwardly and into A side ducts 608 along air chimney 808.Meanwhile, chamber 820 is filled via valve 818 and is produced fluid.Production fluid is produced fluid/motive fluid with A side and is mixed, and this allows this fluid to overflow piston 806.The circulation of this process is carried out and is continued vibration, produces thus.When piston 806 and 810 moves, form vacuum, this opens production chamber 820 and sucks other production fluid.In same one-stroke, the fluid stored is released flap valve 816 by the bottom of piston 806, and is risen by power/production pipeline 814.This process allows effective pumping, and strengthens with the ability of variable-volume extraction fluid.
Marginal well
Embodiments of the present invention allow marginal well to reuse.Marginal well is those otherwise the drilling well of will remove from produce due to high-energy and maintenance cost.When adopting the Pulsar time scale of embodiments of the present invention, marginal well is again lucrative.
Shallow well
Embodiments of the present invention can also from shallow well extraction fluid.Flexible pipe line and hydraulic drum are preferably used wherein in the disabled area of isolation of electric power.In one embodiment, minitype motivation unit can be arranged on to be had on the skid of reel, and pulsar unit is installed in its permission within the very short time, and does not adopt drilling rig.
Deviated well
Pulsar of the present invention can aspirate from deviated well, and does not does not wear and tear to the pipe-line system of placing to downhole hardware from ground.
Inclination angle is crept into
Embodiments of the present invention can be used in the well crept into from rock stratum deflection.The embodiments of the present invention can across oil field pumping, pumping in vertical or any obliquity down hole subsequently.Due to the high demand of horizontal drilling activity and high-energy cost, by having the ability being arranged on upright position and making angle deviating horizontal level, the embodiments of the present invention commercially form huge advantage.
Effective pumping
Other embodiment of the present invention allows the both sides of the stroke in downhole hardware to carry out pumping, which increases efficiency, therefore for utilizing the application of solar energy and wind energy to provide desirable design.
Filtration system
An embodiment of the invention comprise unique filtration system, and it prevents sand and other little landwaste from accumulating in downhole hardware.A subject matter of the down-hole pump filtration system in existing pumping technology is, if little gauze filter is placed on down-hole pump, then chip has sealing or blocks the trend of this strainer, and stops in fluid inflow pump.If large grid is placed on downhole hardware, this strainer allows sand and little chip to enter in pump, in downhole hardware, produce wearing and tearing.This embodiment of the present invention is backwash filter in each circulation of pump preferably, allows thus to install less gauze filter, and can not get clogged or seal.Particularly because the existence of broken sand in new well, this embodiment also leaches broken sand, which increases the life-span of piston in downhole hardware and socket.
Volume adjusts
Once power unit of the present invention, pulsar and downhole hardware are mounted and carry out pumping, then can adjust output, and not need timer, and not need shutdown system.Ground variable hydraulic pump allows the owner/operating personnel according to the output adjustment System of drilling well.
Aesthstic
Embodiments of the present invention can be arranged on underground, make to can't see it from ground.Ground power unit and pulsar can in ground line or following installations, to maintain the outward appearance of landform.
Although describe the present invention special in detail with reference to these preferred embodiments, other embodiment can realize identical effect.Various changes and modifications of the present invention will be obvious to those skilled in the art, and the present invention is intended to contain all this amendments and equivalent in the appended claims.By reference whole disclosures of above-cited all bibliography, application, patent and open text are herein incorporated.
Claims (4)
1., for the method from drilling well removing fluids, the method comprises the steps:
Downhole hardware is at least partially disposed in drilling well, described downhole hardware comprises the first side and the second side, described first side comprises the one or more pistons be arranged in the first pipe, and described second side comprises the second pipe, and described one or more piston is arranged in single pump;
Connect pulsar unit to the first pipe and the second pipe;
Production fluid to be pushed in the second pipe and to arrive pulsar unit along the described one or more piston promoting downhole hardware in downward direction;
Promote described one or more piston of downhole hardware in upward direction and production fluid to be pushed in the first pipe and to arrive pulsar unit;
Hybrid power fluid and production fluid in pulsar unit;
Described fluid is discharged by least one valve be arranged in pulsar unit; And
Backwash filter in each circulation of pump.
2. method according to claim 1, wherein described one or more reciprocating motion of the pistons of downhole hardware, to produce fluid in each stroke of described downhole hardware.
3., for the system from drilling well removing fluids, comprising:
Pulsar unit, described pulsar unit allows hybrid power fluid and produces fluid;
Downhole hardware, be positioned at drilling well at least in part, described downhole hardware comprises the first side and the second side, and described first side comprises the one or more pistons be arranged in the first pipe, described second side comprises the second pipe, and described one or more piston is arranged in single pump;
Described pulsar unit is connected to described first pipe and the second pipe;
Production fluid by along in downward direction promoting, to push in described second pipe and to arrive described pulsar unit by described one or more piston thus;
Described one or more piston is promoted in upward direction, to be pushed by production fluid thus in described first pipe and to arrive described pulsar unit,
Be arranged at least one valve in described pulsar unit, for discharging production fluid and the motive fluid of mixing; And
The device of backwash filter in each circulation of pump.
4. system according to claim 3, wherein said one or more reciprocating motion of the pistons, to produce fluid in each stroke of described downhole hardware.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13337308P | 2008-06-30 | 2008-06-30 | |
| US61/133,373 | 2008-06-30 | ||
| PCT/US2009/049176 WO2010002841A2 (en) | 2008-06-30 | 2009-06-30 | Liquid rod pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102076929A CN102076929A (en) | 2011-05-25 |
| CN102076929B true CN102076929B (en) | 2015-08-19 |
Family
ID=43603045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980125101.9A Expired - Fee Related CN102076929B (en) | 2008-06-30 | 2009-06-30 | liquid rod pump |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2313608A4 (en) |
| JP (1) | JP5620909B2 (en) |
| CN (1) | CN102076929B (en) |
| CA (1) | CA2728801C (en) |
| MX (1) | MX2010014371A (en) |
| ZA (1) | ZA201100691B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160160B (en) | 2013-03-14 | 2017-02-22 | 油研工业株式会社 | Hydraulic device for driving oil well pump |
| MX370550B (en) * | 2013-10-03 | 2019-12-17 | Energy Recovery Inc | Frac system with hydraulic energy transfer system. |
| CN110821847A (en) * | 2019-11-05 | 2020-02-21 | 安徽郁金香新能源科技有限公司 | Novel automatic filter screen backwashing device |
| CN111520305B (en) * | 2020-07-06 | 2020-10-30 | 沈阳风正技术发展有限公司 | Secondary booster pump for oilfield water injection |
| CN117967651B (en) * | 2024-02-02 | 2024-07-12 | 武汉齐达康能源装备有限公司 | Hydraulic mixing and conveying equipment convenient for cleaning impurities of hydraulic oil and use method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420151A (en) * | 1945-03-23 | 1947-05-06 | Emsco Derrick & Equip Co | Oil well pump |
| US3123007A (en) * | 1964-03-03 | Well pump | ||
| US4611974A (en) * | 1984-05-30 | 1986-09-16 | Holland John H | Hydraulically operated well pump system |
| US4861239A (en) * | 1986-04-21 | 1989-08-29 | Rent, Ltd. | High efficiency pump method and apparatus with hydraulic actuation |
| US6131660A (en) * | 1997-09-23 | 2000-10-17 | Texaco Inc. | Dual injection and lifting system using rod pump and an electric submersible pump (ESP) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6224797Y2 (en) * | 1979-11-09 | 1987-06-24 | ||
| DE3335607A1 (en) * | 1983-09-30 | 1985-04-11 | Bayer Ag, 5090 Leverkusen | PUMP ROD |
| JPH04323493A (en) * | 1991-04-23 | 1992-11-12 | M S K:Kk | Taking out device for hot spring water and the like and drilling device |
-
2009
- 2009-06-30 JP JP2011516796A patent/JP5620909B2/en not_active Expired - Fee Related
- 2009-06-30 MX MX2010014371A patent/MX2010014371A/en active IP Right Grant
- 2009-06-30 CN CN200980125101.9A patent/CN102076929B/en not_active Expired - Fee Related
- 2009-06-30 CA CA2728801A patent/CA2728801C/en active Active
- 2009-06-30 EP EP09774292.8A patent/EP2313608A4/en not_active Withdrawn
-
2011
- 2011-01-27 ZA ZA2011/00691A patent/ZA201100691B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3123007A (en) * | 1964-03-03 | Well pump | ||
| US2420151A (en) * | 1945-03-23 | 1947-05-06 | Emsco Derrick & Equip Co | Oil well pump |
| US4611974A (en) * | 1984-05-30 | 1986-09-16 | Holland John H | Hydraulically operated well pump system |
| US4861239A (en) * | 1986-04-21 | 1989-08-29 | Rent, Ltd. | High efficiency pump method and apparatus with hydraulic actuation |
| US6131660A (en) * | 1997-09-23 | 2000-10-17 | Texaco Inc. | Dual injection and lifting system using rod pump and an electric submersible pump (ESP) |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2728801C (en) | 2016-11-29 |
| CA2728801A1 (en) | 2010-01-07 |
| JP5620909B2 (en) | 2014-11-05 |
| CN102076929A (en) | 2011-05-25 |
| ZA201100691B (en) | 2011-10-26 |
| EP2313608A2 (en) | 2011-04-27 |
| EP2313608A4 (en) | 2016-04-06 |
| JP2011526972A (en) | 2011-10-20 |
| MX2010014371A (en) | 2011-05-03 |
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