CN102076929A - Liquid rod pump - Google Patents
Liquid rod pump Download PDFInfo
- Publication number
- CN102076929A CN102076929A CN2009801251019A CN200980125101A CN102076929A CN 102076929 A CN102076929 A CN 102076929A CN 2009801251019 A CN2009801251019 A CN 2009801251019A CN 200980125101 A CN200980125101 A CN 200980125101A CN 102076929 A CN102076929 A CN 102076929A
- Authority
- CN
- China
- Prior art keywords
- fluid
- piston
- drilling well
- downhole hardware
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title description 21
- 239000012530 fluid Substances 0.000 claims abstract description 257
- 238000004519 manufacturing process Methods 0.000 claims abstract description 81
- 238000005553 drilling Methods 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 description 23
- 239000011435 rock Substances 0.000 description 14
- 238000000605 extraction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- 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
- E21B43/129—Adaptations of down-hole pump systems powered by fluid supplied from outside the borehole
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well.
Description
The cross reference of related application
The name that the application requires to submit on June 30th, 2008 is called the U.S. Provisional Patent Application sequence number No.61/133 of " liquid insert pump ", the name of submitting on November 21st, 373 and 2008 is called the U.S. Provisional Patent Application sequence number No.61/199 of " liquid insert pump ", 853 priority and rights and interests are herein incorporated its manual and claim by reference.
Technical field
The embodiments of the present invention relate to the pumping and the extraction of underground liquid, relate in particular to the application of hydraulic principle, to be convenient to the pumping of liquid under the situation that does not adopt sucker rod.
Background technology
In petroleum industry, exist at present to the darker well of pumping, produce bigger volume and can from tiltedly creep into and crooked drilling well the demand of pump of extraction fluid.Present technology can not solve and water be raise the sun and wind can be applied to the problem of power source greater than 500 feet whiles.Also have problems in the situation that in some field of handling unwanted fluid, is not adopting extra pump installation to help to handle at present.The embodiments of the present invention can satisfy above-mentioned all demands, simultaneously still Energy Efficient more.
In petroleum industry, the main pump type that is used for darker well depends on the oil pumper that has used in petroleum industry in 20 beginnings of the century at present.Creep in the situation downwards, technology early also has been used for adopting fluid that pressure is passed to pump.
For present horizontal drilling drilling cramp, oil pumper or oil pumping insert pump are not effective for this boring type.Because to the mechanical connection of downhole hardware, oil pumper is locked in certain accurate distance of will advance from ground, and horizontal level or in deviated well difficulty during rocking beam.The embodiments of the present invention have the change stroke and the ability in cycle in each pump, and this has eliminated the wearing and tearing of bar, and the wearing and tearing that improved efficient and reduced the descending pump.
Present technology does not have the backwash filtration system, and this does not allow pump by backwash, therefore produces maintenance issues.
Present technology also requires entire pump and pipe-line system to be drawn out to be used for maintenance, and does not have the ability of discharging fluid, so 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 that satisfies industrial requirement, as the demand of energy efficiency, horizontal pumping means leicht fallen D/A, processing are pumped out simultaneously the ability of valuable fluid from different zones from the unwanted fluid in a zone.Current also exist to can enough sun and/or wind pump that power is provided with the fluid lifting must be than at present possible height the demand of high pump.
Summary of the invention
The embodiments of the present invention provide a kind of pump, and it is outstanding than present fluid rising technology, particularly pump look than the oil pumping rod-type.The embodiments of the present invention preferably do not need to use on the ground sucker rod or oil pumper.Each embodiment also needs maintenance cost seldom, because they can be by fluid drives, 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 equipped with traditional oil field equipment, and it adopts downhole hardware, comprise pipe-line system, preferred about 2 to 5 inches pipe-line system, and more preferably from about 2 3/8 (2.375) or about 2 7/8 (2.875) inches pipeline.Less conduit, preferred about 0.25 to 2 inch pipe-line system, more preferably from about 1 inch or littler interior caliber (flexible or rigid conduit) insert bigger pipeline, to be formed for producing the annular region 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 with oil pumper, this pumping technology allows downhole hardware suction length-slow stroke or weak point-fast stroke.Because the fluid displacement design, downhole hardware does not require from ground to one to one displacement ratio of downhole hardware.
The embodiments of the present invention preferably improve about 40% energy efficiency than known pump.
One embodiment of the present invention provide a kind of improved pumping system, and it saves energy, and is in light weight, and than traditional pumping system requirement maintenance still less.
Another embodiment of the invention provides the design of a kind of pumping system, and it is assigned to different subterranean zones with unwanted fluid from a subterranean zone pumping time.
Another embodiment of the present invention provides a kind of backwash filtration system, and it prevents that traditional plugged filter, sealing and pump 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, with the efficient of maximization Production Regional.
Another embodiment of the invention provides the variable volume pumping system, can adjust it from ground, and not need to close pump or pump is set to timing means.The variable volume pumping system is used in particular for being arranged in the water pumper of the isolated area of the earth.
Another embodiment of the present invention provides high power capacity pumping system, and the twocouese that it can be by utilizing pump stroke increases efficient thus and allows it to provide power by solar energy and/or wind energy with low-yield pumping large volume.
Another embodiment of the present invention preferably includes the method that drags dry tubing string (pipeline that does not comprise fluid) during the course.
One embodiment of the present invention are preferably a kind of being used for from leading to the method for Production Regional and the drilling well removal production fluid that leads to disposal area.This method comprises the steps: to separate Production Regional and disposal area; During piston stroke, will produce fluid and push production system to from Production Regional; And during the same one-stroke of piston, will dispose fluid and push disposal area.These two zones adopt packer to separate.This embodiment can also comprise systematically backwash production fluid of employing screen filter, so that particulate does not enter this system.Can also adjust and dispose and output ratio.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 equipment that is used for removing from the drilling well of leading to Production Regional and disposal area the production fluid.This equipment preferably includes: packer is used for described Production Regional and described disposal area are separated; Piston, wherein during the stroke of described piston, described piston will be produced fluid and push production system to from described Production Regional.During the same one-stroke of described piston, described piston also will be disposed fluid and push in the described disposal area.Therefore, fluid is produced in extraction, and disposes fluid during the same one-stroke of piston.This embodiment can comprise the screen filter that is used for backwash production fluid alternatively, to guarantee not having particulate in fluid stream.
Another embodiment of the present invention is a kind of method that is used for removing from drilling well fluid.This method comprises the steps: downhole hardware is at least partially disposed in the drilling well; Promote the piston of downhole hardware and will produce fluid to push the production system along first direction from Production Regional; And promote the described piston of downhole hardware and will produce fluid to push the production system from Production Regional along second direction.The described piston of downhole hardware preferably moves back and forth, so that produce fluid in each stroke of described downhole hardware.
One embodiment of the present invention comprise a kind of system that is used for removing from drilling well fluid.This system comprises: downhole hardware is positioned at drilling well at least in part; Piston, be arranged in the described downhole hardware, wherein said piston is promoted along first direction, will produce fluid thus and push the production system from Production Regional, and described piston is gone back along second direction and is promoted, and will more produce fluid thus and push the production system from Production Regional.In this embodiment, described piston preferably moves back and forth, so that produce fluid in each stroke of described downhole hardware.
Another embodiment of the invention is a kind of method that is used for moving from drilling well fluid.This method comprises the steps: that the downhole hardware that will comprise pipeline and one or more pistons is at least partially disposed in the drilling well; Apply power fluid, this power fluid moves described one or more pistons of downhole hardware; Push the ground of drilling well to producing fluid; And valve is arranged on the downhole hardware or near, wherein said valve place, the ground of described drilling well or near start releasedly, when removing described pipeline, described drilling well discharging the power fluid that is included in the described pipeline thus, so that when described pipeline is removed in described drilling well, passing through described valve release power fluid.Valve is preferably L shaped valve described in this embodiment.When described pipeline is removed in described drilling well, described pipeline is preferably drying duct.The downhole hardware of this embodiment preferably utilizes the seat joint at the place, bottom of downhole hardware to be fixed in the described drilling well.
Another embodiment of the present invention is a kind of equipment that is used for moving from drilling well fluid.This equipment preferably includes: comprise being at least partially disposed on the interior one or more pistons of drilling well and the downhole hardware of pipeline; Power fluid, wherein said power fluid move described one or more pistons in described downhole hardware; Be moved toward the production fluid on the ground of described drilling well; And valve, be arranged on the downhole hardware or near, wherein said valve is discharging the power fluid that is included in the described pipeline when described pipeline is removed in described drilling well.The described valve of this equipment is preferably L shaped valve.When described pipeline is removed in described drilling well, it is preferably drying duct.The seat joint is fixed on the place, bottom of described downhole hardware alternatively.
Next target of the present invention, advantage and novel features and other range of application will partly propose in conjunction with the accompanying drawings the detailed description, and part will become obviously by investigating following explanation for a person skilled in the art, perhaps can understand by practice of the present invention.The present invention can realize and acquisition via means of pointing out in the claim of enclosing especially and combination.
Description of drawings
The accompanying drawing that is bonded to and forms the part of this manual illustrates one or more embodiments of the present invention, and itself and manual one are used from explanation principle of the present invention.Accompanying drawing is only used for illustrating the purpose of one or more preferred implementations of the present invention, rather than will be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a lateral view, and it illustrates one embodiment of the present invention, and wherein pulsar (pulsar) unit is connected to single drilling well, and this unit moves on to fluid on the ground, and the promotion downhole hardware moves down;
Fig. 2 is a lateral view, its one embodiment of the present invention, and wherein the pulsar unit promotes the downhole hardware in a plurality of drilling wells each, moves down on the phase reversal of stroke with the piston in the pulsar unit;
Fig. 3 is the sectional view of diagram down-hole pump according to the embodiment of the present invention;
Fig. 4 is the pulsar unit of the diagram production/disposal that is used for fluid according to the embodiment of the present invention and the lateral view of power unit;
Fig. 5 A is the diagram sectional view of production/disposal well lower device according to the embodiment of the present invention, wherein disposal area be positioned at Production Regional below;
Fig. 5 B is the sectional view of diagram according to the production/disposal well lower device of another embodiment of the present invention, wherein disposal area be positioned at Production Regional above;
Fig. 6 is for illustrating the pulsar unit that utilizes fluid-mixing according to the embodiment of the present invention and passing through the sectional view that new sliding plunger design discharges the power unit of unnecessary fluid;
Fig. 7 illustrates the enlarged drawing of illustrated pulsar unit among 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.
The specific embodiment
As using in whole manual and the claim, indefinite article is meant one or more.
As using in whole manual and the claim, " power unit " is meant any device, method, equipment, system or its combination that pump action can be provided for fluid at least in part.
As using in whole manual and the claim, " pulsar " be meant can mobile fluid any device, method, equipment, system or its combination etc.
As using in whole manual and the claim, pipeline and pipe are to provide wide implication, and comprise can transmitting fluid any device, 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 includes but not limited to metal, synthetic, synthetic material, plastics or its combination etc. by can make for fluid provides any material of stream at least temporarily.
As using in whole manual and the claim, " downhole hardware " is meant device, method, structure, equipment, system or its combination etc. that are at least partially disposed in the well.
As using in whole manual and the claim, " piston " is meant can be to device, method, structure, equipment, system or its combination of pressurized with fluid.
As using in whole manual and the claim, " sequence system " be meant can the sensitizing pulse star device, method, structure, equipment, system or its combination, include but not limited to pressure sensor or a series of pressure sensor.
As using in whole manual and the claim, " production system " is meant and can stores or further device, method, structure, equipment, system or its combination of process for producing fluid, include but not limited to fluid reservoir, ground, pipeline, heat interchanger, pump and combination thereof.
As using in whole manual and the claim, " packer " is to provide wide in range implication, and comprise can be with another zone isolation or any device that separates, method, structure, equipment, system or its combination in zone in the well and the well.For example, packer can be isolated Production Regional in the drilling well and disposal area.
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 is passed to pulsar 18 from hydraulic pump 14, and the two is preferably placed at hydraulic pump 14 and pulsar 18 or near the surface of creeping into.In preferred embodiment, hydraulic fluid does not mix with power fluid.Power fluid transmits the energy from pulsar 18, and provides downward pressure on downhole hardware 200 (referring to Fig. 2).In this embodiment, hydraulic fluid does not preferably mix with the production fluid yet.Produce fluid and be pumped into ground product from subterranean strata for adopting embodiments of the present invention.Power fluid preferably also is a closed system.In fact power fluid promotes the motion of downhole hardware 200, and in one embodiment, mainly is made of water.Because water almost is incompressible, therefore pressure is passed to downhole hardware 200 immediately with very high efficient and considerably less compression.If any fluid loss of not expecting, then power fluid piston 40 forms vacuum when it returns reset position, therefore fills any fluid space in the power pipe 204.
Fig. 1 illustrates embodiments of the present invention, and it comprises power unit 10 and pulsar unit 18, and the mobile on the ground fluid in pulsar unit 18 also promotes downhole hardware 200 reciprocating motions.
Fig. 1 illustrates power unit 10, and it preferably includes motor 12, is preferably standard motor.Motor 12 can be typical (AC) or direct current (DC) motor of exchanging, 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, so hydraulic fluid does not mix with power fluid or production fluid.Pipeline 20 is fixed to liquid reserve tank 16, and hydraulic fluid is moved to the hydraulic cylinder 24 that seals with end cap 28 from liquid reserve tank 16.Hydraulic piston 22 is contained in the hydraulic cylinder 24.Liquid reserve tank 16 and hydraulic cylinder 24 can be made by any suitable material that can keep hydraulic fluid and operate under the high pressure of needs.Hydraulic valve system 26 starting impulse stars 18, pulsar 18 vibrates connecting axle 30 back and forth and circulates.Valve system 26 is preferably controlled by the various pressure in the closed power system, and is started by the surge pressure (spiked pressure) from downhole hardware 200.As shown in Figure 2, downhole hardware 200 its whole length of preferably advancing reduces as far as possible up to lower piston 234, therefore increases the pressure in the power pipe 204.Pressure peak boot sequence system subsequently.Sequence system makes hydraulic fluid begin the direction that flows through hydraulic valve system 26 and reverse ground hydraulic piston 22 subsequently.Sequence system can be electricity, machinery or its combination.
Fig. 2 illustrates one embodiment of the present invention, and it comprises the downhole hardware 200 that is connected to the pulsar unit of seeing among Fig. 1 18.
In one embodiment of the invention, as shown in Figure 2, safety valve 202 is preferably L shaped valve, and is installed in the power pipe 204, between the starting position of the top of downhole hardware 200 and power pipe 204.When downhole hardware 200 was pulled to ground, for example, in situation about needing repairing, safety valve 202 allowed the driven solenoid 204 of power fluid to discharge.Safety valve 202 allows the repairman to drag dry tubing string, the pipeline that does not comprise fluid, rather than wet tubing string.The ability that drags dry tubing string prevents that power fluid from spilling on the ground.Preferably, safety valve 202 is that sealing is installed at first, and it is reversed subsequently, and power pipe 204 upwards slides subsequently, and power pipe 204 is upwards hauled out well.When power pipe 204 was upwards dragged, therefore it upwards dragged the tubing string of " drying " through the gravity vent 206 and 208 of discharging power fluid.In one embodiment, when removing pipeline, the maintenance personal does not drag wet tubing string.
The annular region 210 runoff yield body of making a living is upwards advanced by it and is arrived the zone on ground.Downhole hardware 200 preferred seat joints 212 with place, downhole hardware 200 bottoms are fixing.Seat joint 212 can also be installed in the top of downhole hardware 200, therefore hangs downhole hardware 200 from seat joint 212.Annular region 210 comprises the zone between power pipe 204 and the Outer Tube 214.When downhole hardware 200 fixedly the time, produce fluid and be retained in the annular region 210, perhaps, if downhole hardware 200 is fixing, the production release of fluid is in the rock stratum.
The downhole hardware 200 preferred pressure that on top piston 216, receive from pulsar unit 18.When pressure was applied to top piston 216, it moved 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 on the top piston 216 is converted into thrust, and starts piston 222.Piston 222 is preferred for equilibrium pressure.Downhole hardware 200 forms the upwards thrust bigger than downward thrust when downhole hardware 200 is static, because formation area 224 has the pressure littler than downhole hardware 200, it forms upwards imbalance on downhole hardware 200.Therefore, the energy that only obtains from ground is enough to move down piston 216,222 and 234.The top of piston 222 preferably is exposed to the rock stratum by gravity vent 226.Coupling 228 sealing cylinders 220 form pressure differential at the top of piston 222 thus.When the top of piston 222 was exposed to the rock stratum, the bottom of piston 222 was exposed to annular region 210 via openings 230, and this adopts coupling 232 to form and upwards pressure, with separation of the fluid pressure.Coupling 232 is designed to prevent that pressure equates in the zone 224 that is exposed to the rock stratum.The top of piston 234 is exposed to the rock stratum, and the bottom-exposed of piston 234 is to producing fluid, and is used for the production fluid is shifted out valve gear 236 and upwards moves to annular region 210.Produce fluid and 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 238 marches to annular region 210 from the chamber.Valve gear 240 also comprises one way stop peturn valve, and it prevents that the production fluid in the chamber 238 from returning the rock stratum.When downhole hardware 200 moved down, downward pressure promoted valve gear 236 and opens, and will produce fluid thus and upwards be transported to annular region 210.When downhole hardware 200 was upwards withdrawn, the power that makes progress was opened valve gear 240, received the chamber 238 from the rock stratum will produce fluid after the production fluid filters via filtration system 242.
A plurality of drilling wells
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, promptly power unit 300 and pulsar 302 are operated together, further improve the efficient of pulsar 312 thus.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 a plurality of drilling well.In this embodiment, piston 306 and the vibration of 308 front and back, fluid is produced in extraction on the downward stroke of two downhole hardwares 302 and 304 thus.The production fluid is used for cooling off the hydraulic fluid in the liquid reserve tank 314 subsequently, produces fluid simultaneously and is heated, and is used for making the easier separation of You Heshui of producing fluid before the production fluid is delivered to case 316.
The disposal area of isolating
With reference to Figure 4 and 5 A-5B, another embodiment of the invention comprises pulsar 402 and downhole hardware 500, and the production that fluid is recovered in the zone that it allows from drilling well has the ability of disposing unwanted fluid in the second area of this drilling well simultaneously.In this embodiment, in case piston 527 reduces as far as possible, pressure reaches peak value in power pipe 504, opens pressure safety valve 522 and promote undesired power fluid to enter the area of isolation that is fit to dispose unwanted fluid by packer 508.When all unwanted fluids all are processed in the disposal area 526, power fluid piston 422 will upwards be resisted against on the end cap 426, produce extra pressure peak, this trigger sequence system, with inversion pulse star 420, and introduce extra power fluid, be used for next circulation by opening valve 430.Pulsar 402 has two kinds of operating pressure levels, and provides two kinds of different functions, a kind of stress level to be used for producing fluid from the rock stratum extraction, and another kind of stress level is used to dispose unwanted fluid.
Fig. 4 illustrates one embodiment of the present invention, and it comprises power unit 400 and the pulsar 402 that is used for the extraction underground liquid.
This embodiment creeps into two zones that preferably utilize drilling well in the situation downwards, extract out from a zone of rock stratum producing fluid, simultaneously with 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 any suitable material that can keep hydraulic fluid.Liquid reservoir 406 has low relatively pressure, and can be configured to have the extra chamber that allows the production fluid to flow through, and is formed for the heat interchanger of 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 produces high pressure when its process high-pressure and hydraulic pipeline 412.Pipeline 412 can be made by any material that can handle high voltages.Pipeline 412 is supplied to hydraulic fluid the hydraulic cylinder 414 that is supported by end cap 416.Hydraulic fluid presses against on the hydraulic piston 418, the vibration of hydraulic piston 418 front and back.Hydraulic piston 418 preferably is installed as has tight tolerance gap, and is connected to connecting axle 420.Hydraulic piston 418 is shifted to connecting axle 420, connecting axle 420 subsequently with transmission of power to power fluid piston 422.This action forms pressure on the working fluid cylinder 424 that is remained on by end cap 426 on the correct position, discharge by outlet 428 up to power fluid/disposal fluid.
When pulsar 402 moved back to hydraulic cylinder 414 arrival reset positions, one way stop peturn valve 430 preferably was open, to change the power fluid in the working fluid cylinder 424 in the situation of any loss of not expecting of power fluid appearance during pulsar 402 backward strokes.Any space of power fluid can produce vacuum, and this allows one way stop peturn valve 430 to open, and guarantees that thus the downward stroke of pulsar 402 makes full use of power fluid, to guarantee the downhole hardware 500 designed complete travel distance of advancing, promptly reduces as far as possible.
When power fluid piston 422 during, produce fluid and upwards advance to annular region and enter and produce case 432 towards end cap 426 vibration.Power fluid/disposal fluid is from the production fluid separation and place case 434, and reuses by pipeline 436, to fill working fluid cylinder 424, is used to begin another circulation.In this embodiment, power fluid/disposal fluid is used for starting downhole hardware 500.Downhole hardware 500 preferably will be produced fluid and be raised to ground, and dispose unwanted fluid in disposal area.Disposal area can on the Production Regional or under.Fig. 5 A illustrates wherein disposal area of the present invention and is positioned at embodiment under the Production Regional.Fig. 5 B illustrates wherein disposal area of the present invention and is positioned at embodiment on the Production Regional.
By adjusting the reciprocal set point of piston 418 and 422, the volumetric displacement of the disposal fluid of removing from case 434 that the amount with the production fluid that enters case 432 can adjusted is relevant is so that produce the production/disposal ratio of optimum.During near its capacity limitation, this adjustment allows to dispose the more fluid of disposing in disposal area at case 434.Replacedly, when 434 during, can reduce the fluid management rate near dummy status.Those skilled in the art will recognize easily, and the multiple mode that is used for this reciprocal set point comprises electronic sensor and/or to connecting axle 420, piston 418 and/or 422 and the physics change of lid 416 and 426.In one embodiment, electronic circuit preferably is set to based on the fluid level of case 434 and/or case 432 or replacedly based on the reciprocal set point of standard adjustment of some other measured value or user's appointment.
Fig. 5 A and 5B illustrate one embodiment of the present invention, it comprise with Fig. 4 in pulsar 402 and the dual purpose production/disposal well lower device 500 of power unit 400 associated working.Downhole hardware 500 preferred zones from the rock stratum will produce fluid pump and deliver to case 432, and dispose unwanted fluid in another zone in the rock stratum 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, this annular region 502 is power pipe 504 and produces the zone of managing between 506.Power pipe 504 preferably includes about 0.5 to 5 inch pipe, 0.75 to 3 inch pipe more preferably from about, 1 inch pipe most preferably from about, and produce pipe 506 and preferably include about 0 to 5 inch pipe, more preferably 2 to 4 inches pipes, most preferably from about 2 7/8 (2.875) inches pipes.Downhole hardware 500 preferably is arranged in the well with packer 508.Standard device can be used for isolate production zones and disposal area.Downhole hardware 500 preferably is equipped with the pipeline that can transmit fluid under goal pressure.
Disposal/kinetic current body cavity 520 is preferably closed system, and it will be passed to the top of piston 510 from the pressure on ground.Top attachment device 512 is preferably kept the separation of pressure.The bottom-exposed of piston 510 is to annular region 502.Production fluid in the annular region 502 produces thrust upwards on piston 510 and 514.
Pressure and the fluid of zone below the piston 514 between coupling 516 isolation pistons 514 and 527.Gravity vent 518 comprises power fluid/disposal fluid, and as the connecting rod to piston 510,514 and 527.High-pressure safety valve 522 is installed in the bottom of gravity vent 518, be used to dispose the disposal of fluid/power fluid, and the pressure in downhole hardware 500 surpasses normal running production pressure just to be opened, and high-pressure safety valve 522 was opened and unnecessary disposal fluid was pushed in the disposal area by packer 508 this moment.
In embodiments of the present invention, disposal/motive fluid applies downward pressure on piston 510, and piston 510,514 and 521 is advanced downwards.This downward pressure will be produced fluid by flap valve 524 and be pushed in the annular region 502.When piston 510,514 and 527 had arrived the bottom of target range, piston 510,514 and 527 reduced as far as possible, and forms pressure in downhole hardware 500, up to surpassing production work pressure from the downward pressure of disposing fluid/power fluid.At this moment, high-pressure safety valve 522 is opened, and by packer 508 with unwanted fluid deposition in disposal area 526.The boot sequence system that opens of high-pressure safety valve 522, and power fluid piston 422 (Fig. 4) shifts to hydraulic piston 418 is thus along upward to mobile piston 510,514 and 527.One way stop peturn valve 528 absorbs when each vibration of downhole hardware 500 produces fluid.The flap valve 524 that is used to export is at the opposite side of pipeline, and will produce fluid and upwards shift annular region 502 onto.What be connected to valve system 528 is screen filter 530, and it can prevent that chip from entering downhole hardware 500.Shown in Fig. 5 A and 5B, downhole hardware 500 can be installed as make disposal area 526 on the Production Regional 532 or under.
Fig. 6 illustrates one embodiment of the present invention, power unit 600 and pulsar 602 that it comprises preferred hybrid power liquid and produces fluid and pass through safety valve 604 and 606 release fluids.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 to mix produces fluid and power fluid.Power unit 600 preferably includes the motor that is used for power source 616, and it can be for being fit to solar energy or wind energy or manually operated DC motor or AC motor.Replacedly, power unit 600 can only depend on solar energy or the operation of wind energy power source.Motor is preferably mounted on the hydraulic pressure fuel tank 618 and is connected to hydraulic pump 620.Hydraulic power pipeline 622 is connected to sequence system 626, and is used for transmission of power to chamber C, with the piston in the oscillating impulse star 602 628,610 and 614.Pulsar 602 preferably includes three fluid cavitys that separate (A, B and C), and one of them (chamber C) is preferably hydraulic fluid complete closed system.Hydraulic fluid is preferably removed from case 618 via hydraulic pump 620, and is pushed among 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 upwards promotes piston 810 (referring to Fig. 8) subsequently, the production fluid in the chamber 811 of downhole hardware 800 is pushed along air chimney by valve 804, and is pushed along pipeline 608.In case chamber 811 is closed and piston 810 is resisted against on the coupling 812, pressure peak appears in the B side, and sequence system 626 starts piston 628, to move connecting axle 624 and piston 610,614 and 628 towards chamber A, under the A side direction, send the production fluid by opening the cone valve 702 that is positioned on the piston 614 thus, and unnecessary fluid is upwards sent to outside the B of chamber via valve 606.
After unnecessary fluid reduces as far as possible by valve 606 releases and piston 806 and 810, another pressure peak appears, and sequence system 626 reverse directions, connecting axle 624 is shifted to pipeline 814 subsequently, and closes cone valve 702.Cone valve 702 is closed in stop member, bearing, locking device or its combination etc. that preferred employing is positioned on the piston 614.Alternatively, can adopt stop member, bearing, locking device or its combination etc. that are arranged in chamber B to close cone valve 702.Piston 614 is shifted to pressure that pipeline 814 produces along pipeline 814 propelling fluids, and upwards promote piston 806 and 810, this will upwards push away along air chimney 808 from the fluid in chamber 811, upwards pushes away by valve 804 and along pipeline 608.When unnecessary fluid when pipeline 608 enters chamber A, cone valve 700 is opened and unnecessary release of fluid is gone out valve 604.When all unnecessary fluids discharge by valve 604 and when chamber 811 is closed, another pressure peak occurs, and sequence system 626 promotes pistons 628 change directions.Piston 628 is pushed piston 610 to pipeline 614 subsequently, and closes cone valve 700.Stop member, bearing, locking device or its combination etc. that cone valve 700 preferred employings are positioned on the piston 610 are closed.Cone valve 700 can adopt stop member, bearing, locking device or its combination etc. that are arranged in chamber B to cut out alternatively.Adopt each vibration of pulsar 602 to repeat this circulation.When identical fluid was used for starting downhole hardware 800, this process continued circulation, and had the ability that discharges unnecessary fluid when the up stroke of each circulation.
With reference to Fig. 6-8, this embodiment of the present invention can be used for shallow well, and can adopt rigidity or flexible pipe line to transmit pressure and produce.This embodiment can also be installed as and move or fixation means.In one embodiment of the invention, preferably about 3 to 20 inches of the diameter of pulsar 602, more preferably from about 5 to 15 inches of diameters, most preferably from about 7 to 10 inches of diameters.Piston 610 and 614 preferably is installed as with pulsar 602 has tight tolerance gap, so the diameter of piston 610 and 614 is preferably near the diameter of pulsar 602.Preferably about 0 to 4 inch of cone valve 700 and 702 diameter, more preferably from about 1 to 3 inch of diameter.Therefore, unnecessary fluid preferably is pushed out the cone valve 700 that is arranged on the larger- diameter piston 610 and 614 and 702 relative little diameter.Have flexible pipe line if unit 800 is installed as, preferably little hawser is connected to unit 800, and is intertwined with two pipelines, to provide the tensile strength that needs during unit 800 is removed.
Fig. 8 illustrates one embodiment of the present invention, and it comprises can be from the downhole hardware 800 of the both sides extraction fluid of its stroke.
Fig. 8 is the continuation of illustrated pump assembly among Fig. 6-7.Fig. 8 shows the bottom part of this assembly.Unit 800 in this embodiment can produce fluid in each side (being called A side and B side) of its stroke.In the A side, pipeline 608 receives pressure from ground fluid, and this fluid promotes flap valve 804 and closes, 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 released chamber 826, fill chambeies 811 by A side valve 828 simultaneously.
When piston 806 and 810 reduces as far as possible, pressure peak appears in the A of chamber, this boot sequence system 626, this sequence system 626 sends to hydraulic fluid among the C of chamber subsequently, and towards B side shifting connecting axle 624 and piston 610,614 and 628, this is along pipeline 814 propelling fluids, and move up piston 810 and 806, is resisted against on the coupling 812 up to piston 810.When piston 614 was shifted to pipeline 814, the cone valve 700 that is arranged on the piston 610 was opened, and allowed the unnecessary fluid spill valve 604 among the A of chamber.When all unnecessary fluids discharge by valve 604 and when chamber 811 is closed, pressure peak occurs in the B side, and sequence system 626 starts, and promotion piston 628 shifts to the A side, and this closes cone valve 700 and subsequently along pipeline 608 propelling fluids.Fluid promotes piston 806 and 810 and moves down, and is upwards pushed away along B side pipe road 814 from the fluid in chamber 820.When fluid was promoted under the A side direction and promotes on the B side direction, the cone valve 702 that is arranged on the piston 614 was opened, and unnecessary fluid discharges by valve 606.When piston 806 and 810 reduces as far as possible and all are unnecessary fluid discharges by valve 606, pressure peak appears in the A side, this trigger sequence system 626, it starts piston 628 to shift to the B side.
This embodiment forms two Production Regional, chamber 820 and 811.When downward pressure promoted piston 806 downwards, valve 816 will be from fluid 814 upwards conveyings along B side pipe road in chamber 820.When upward pressure promotion piston 806 moved up, chamber 820 refilled the production fluid by valve 818.When downward pressure promoted piston 810 downwards, chamber 811 was filled via valve 828 and is produced fluid.When upward pressure promotion piston 810 moved up, the production fluid in the chamber 811 moved outwardly and into A side pipe road 608 along air chimney 808.Simultaneously, chamber 820 is filled via valve 818 and is produced fluid.Produce fluid and mix with A adnation runoff yield body/motive fluid, this allows this fluid to overflow piston 806.This process circulation 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 with one-stroke, flap valve 816 is released with the fluid that stores in the bottom of piston 806, and rises by power/production pipeline 814.This process allows effective pumping, and strengthens the ability with variable-volume extraction fluid.
Marginal well
Embodiments of the present invention allow the limit and reuse.Marginal well is those otherwise because high-energy and maintenance cost and the drilling well that will remove from produce.When adopting the pulsar of embodiments of the present invention, marginal well is lucrative once more.
Shallow well
Embodiments of the present invention can also be from shallow well extraction fluid.Flexible pipe line and hydraulic pressure reel are preferably used therein in the disabled area of isolation of electric power.In one embodiment, the minitype motivation unit can be installed on the skid with reel, and it allows the pulsar unit was installed in the very short time, and does not adopt drilling rig.
Deviated well
Pulsar of the present invention can aspirate from deviated well, and the not wearing and tearing of pipe-line system to placing to downhole hardware from ground.
Creep at the inclination angle
Embodiments of the present invention can be used in the well that creeps into from the rock stratum deflection.The embodiments of the present invention can be across the oil field pumping, pumping in vertical or any obliquity down hole subsequently.Because level is crept into movable high demand and high-energy cost, by having the ability that is installed on the upright position and makes the angle deviating horizontal level, the embodiments of the present invention form huge advantage on market.
Effectively pumping
Other embodiment of the present invention allows the both sides of the stroke in downhole hardware to carry out pumping, and this has improved efficient, therefore provides ideal design for the application that utilizes solar energy and wind energy.
Filtration system
An embodiment of the invention comprise unique filtration system, and it prevents that sand and other little landwaste from accumulating in the downhole hardware.A subject matter of the down-hole pump filtration system in the existing pumping technology is that if little gauze filter is placed on the down-hole pump, then chip has the trend that seals or block this strainer, and stops in the fluid inflow pump.If big grid is placed on the downhole hardware, this strainer allows sand and little chip to enter in the pump, produces wearing and tearing in downhole hardware.This embodiment of the present invention is backwash filter in each circulation of pump preferably, allows thus less gauze filter is installed, and can not get clogged or seal.Particularly because the existence of the broken sand in the new well, this embodiment also leaches broken sand, and this has increased the piston in the downhole hardware and the life-span of socket.
Volume is adjusted
In case 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 output Adjustment System of the owner/operating personnel according to drilling well.
Aesthstic
Embodiments of the present invention can be installed in underground, make to can't see it from ground.Ground power unit and pulsar can be in ground line or following installations, to keep the outward appearance of landform.
Though describe the present invention in detail with reference to these preferred implementations especially, other embodiment can be realized identical effect.Various changes and modifications of the present invention will be that significantly the present invention is intended to contain all this modification and equivalents in the claim of enclosing to those skilled in the art.Whole disclosures of all lists of references that will above quote by reference, application, patent and open text are herein incorporated.
Claims (20)
1. one kind is used for removing the method for producing fluid from leading to Production Regional with the drilling well of leading to disposal area, and this method comprises the steps:
Separate Production Regional and disposal area;
During piston stroke, will produce fluid and push production system to from Production Regional; And
During the same one-stroke of piston, will dispose fluid and push disposal area.
2. method according to claim 1 wherein separates Production Regional and disposal area is provided by packer.
3. method according to claim 1 comprises that also systematically backwash produces the step of fluid.
4. method according to claim 3, wherein backwash step is utilized screen filter.
5. method according to claim 1 also comprises the step of adjusting disposal and output ratio.
6. method according to claim 6, wherein said adjustment is based on the volume of the disposal fluid in the case.
7. one kind is used for removing the equipment of producing fluid from the drilling well of leading to Production Regional and disposal area, and this equipment comprises:
Packer is used for described Production Regional and described disposal area are separated;
Piston, wherein during the stroke of described piston, described piston will be produced fluid and push production system to from described Production Regional; And
Wherein during the same one-stroke of described piston, described piston will be disposed fluid and push in the described disposal area.
8. equipment according to claim 7 also comprises being used for the screen filter that fluid is produced in backwash.
9. method that is used for removing from drilling well fluid, this method comprises the steps:
Downhole hardware is at least partially disposed in the drilling well;
Promote the piston of downhole hardware and will produce fluid to push the production system along first direction from Production Regional; And
Promote the described piston of downhole hardware and will produce fluid to push the described production system along second direction from described Production Regional.
10. method according to claim 9, the described reciprocating motion of the pistons of downhole hardware wherein is so that produce fluid in each stroke of described downhole hardware.
11. a system that is used for removing from drilling well fluid comprises:
Downhole hardware is positioned at drilling well at least in part;
Piston is arranged in the described downhole hardware, and wherein said piston is promoted along first direction, will produce fluid thus and push the production system from Production Regional; And
Wherein said piston is promoted along second direction, will produce fluid thus and push the described production system from described Production Regional.
12. system according to claim 11, wherein said reciprocating motion of the pistons is so that produce fluid in each stroke of described downhole hardware.
13. a method that is used for moving from drilling well fluid comprises the steps:
The downhole hardware that will comprise pipeline and one or more pistons is at least partially disposed in the drilling well;
Apply power fluid, this power fluid moves described one or more piston in downhole hardware;
Push the ground of drilling well to producing fluid; And
Valve is arranged on the downhole hardware or near, wherein said valve place, the ground of described drilling well or near start releasedly, when removing described pipeline, described drilling well discharging the power fluid that is included in the described pipeline thus, so that when described drilling well removes described pipeline, passing through described valve release power fluid.
14. method according to claim 13, wherein said valve are L shaped valve.
15. method according to claim 13, the pipeline that removes from described drilling well comprises drying duct.
16. method according to claim 13, wherein said downhole hardware utilize the seat joint at the place, bottom of this downhole hardware to be fixed in the described drilling well.
17. an equipment that is used for moving from drilling well fluid comprises:
Comprise and be at least partially disposed on the interior pipeline of drilling well and the downhole hardware of one or more pistons;
Power fluid, wherein said power fluid move described one or more piston in described downhole hardware;
Be moved toward the production fluid on the ground of described drilling well; With
Valve, be arranged on the downhole hardware or near, wherein said valve is discharging the described power fluid that is included in the described pipeline when described drilling well removes described pipeline.
18. equipment according to claim 17, wherein said valve are L shaped valve.
19. equipment according to claim 17 wherein comprises drying duct from the described pipeline that described drilling well removes.
20. equipment according to claim 17 also comprises the seat joint, wherein said seat joint is fixed on the place, bottom 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 true CN102076929A (en) | 2011-05-25 |
| CN102076929B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520305A (en) * | 2020-07-06 | 2020-08-11 | 沈阳风正技术发展有限公司 | Secondary booster pump for oilfield water injection |
Families Citing this family (2)
| 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 |
| AU2014331601B2 (en) * | 2013-10-03 | 2018-01-25 | Energy Recovery, Inc. | Frac system with hydraulic energy transfer system |
Family Cites Families (8)
| 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 |
| JPS6224797Y2 (en) * | 1979-11-09 | 1987-06-24 | ||
| DE3335607A1 (en) * | 1983-09-30 | 1985-04-11 | Bayer Ag, 5090 Leverkusen | PUMP ROD |
| US4611974A (en) * | 1984-05-30 | 1986-09-16 | Holland John H | Hydraulically operated well pump system |
| WO1987006653A1 (en) * | 1986-04-21 | 1987-11-05 | Rent, Ltd. | High efficiency pump method and apparatus with hydraulic actuation |
| 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 |
| US6131660A (en) * | 1997-09-23 | 2000-10-17 | Texaco Inc. | Dual injection and lifting system using rod pump and an electric submersible pump (ESP) |
-
2009
- 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 JP JP2011516796A patent/JP5620909B2/en not_active Expired - Fee Related
- 2009-06-30 EP EP09774292.8A patent/EP2313608A4/en not_active Withdrawn
- 2009-06-30 CA CA2728801A patent/CA2728801C/en active Active
-
2011
- 2011-01-27 ZA ZA2011/00691A patent/ZA201100691B/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520305A (en) * | 2020-07-06 | 2020-08-11 | 沈阳风正技术发展有限公司 | Secondary booster pump for oilfield water injection |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2313608A4 (en) | 2016-04-06 |
| MX2010014371A (en) | 2011-05-03 |
| ZA201100691B (en) | 2011-10-26 |
| EP2313608A2 (en) | 2011-04-27 |
| JP5620909B2 (en) | 2014-11-05 |
| JP2011526972A (en) | 2011-10-20 |
| CA2728801C (en) | 2016-11-29 |
| CA2728801A1 (en) | 2010-01-07 |
| CN102076929B (en) | 2015-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8573309B2 (en) | Liquid rod pump and method | |
| US8789609B2 (en) | Submersible hydraulic artificial lift systems and methods of operating same | |
| CA2784184C (en) | Down-hole sand and solids separator utilized in producing hydrocarbons | |
| US20050175476A1 (en) | Gas well liquid recovery | |
| CN101903617B (en) | Subterannean water production, transfer and injection method and apparatus | |
| CN104024564A (en) | System and method for production of reservoir fluids | |
| US6092599A (en) | Downhole oil and water separation system and method | |
| CN201412129Y (en) | Pumping and drainage gas production device of gas production well | |
| US6131660A (en) | Dual injection and lifting system using rod pump and an electric submersible pump (ESP) | |
| CN102076929B (en) | liquid rod pump | |
| RU2498058C1 (en) | Oil-well sucker-rod pumping unit for water pumping to stratum | |
| CN103314180B (en) | Method and apparatus for removing liquid from gas-producing well | |
| US11396798B2 (en) | Downhole pump and method for producing well fluids | |
| RU2531702C1 (en) | Flushing of filter mounted at borehole pump inlet | |
| US20090044952A1 (en) | Stationary slick line pumping method | |
| CN2423400Y (en) | Underground oil-water separation type water injection oil production device | |
| CN1043484C (en) | Sand-proof sand extracting and oil pumping combining device | |
| RU85187U1 (en) | SYSTEM FOR THE USE OF WATERFLOWING OIL PRODUCING WELLS WHEN ORGANIZING LAYER PRESSURE MAINTENANCE ON THE INTER-WELL TRANSFER TECHNOLOGY | |
| RU2212521C1 (en) | Method and device for cleaning bottom of well during its operation | |
| RU2377401C1 (en) | Natural bitumen production method | |
| CN1127611C (en) | Water-replaced oil exploiting method | |
| WO2022240305A1 (en) | Groundwater obtaining method | |
| CN104196511A (en) | Oil well liquid increasing device | |
| CN117108253A (en) | Coalbed methane production excitation elutriation yield increasing technology and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170630 |