CN103967738A - Oilfield pump assembly and method for well maintenance operation - Google Patents

Oilfield pump assembly and method for well maintenance operation Download PDF

Info

Publication number
CN103967738A
CN103967738A CN201410231037.5A CN201410231037A CN103967738A CN 103967738 A CN103967738 A CN 103967738A CN 201410231037 A CN201410231037 A CN 201410231037A CN 103967738 A CN103967738 A CN 103967738A
Authority
CN
China
Prior art keywords
oil field
pump assembly
well
plunger
fluid
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.)
Pending
Application number
CN201410231037.5A
Other languages
Chinese (zh)
Inventor
布赖恩.奥乔亚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prad Research and Development Ltd
Original Assignee
Prad Research and Development Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Prad Research and Development Ltd filed Critical Prad Research and Development Ltd
Publication of CN103967738A publication Critical patent/CN103967738A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention discloses an oilfield pump assembly and a method for well maintenance operation. The oilfield pump assembly of the invention includes a plunger which performs reciprocating motion relative to a cavity to guide fluid to be away from the cavity, and a linear electric motor connected to the plunger and used for the reciprocating motion. The oilfield pump assembly of the invention uses the linear electric motor to replace a conventional crankshaft or hydraulic techniques for driving the plunger of the pump. This may reduce the number of equipment parts and amount of maintenance expenses associated with the operation of oilfield pumps. Furthermore, the use of a linear electric motor may also increase the precision and control over the fluid delivery provided by the pump assembly.

Description

The method of oil field pump assembly and well servicing operation
The application is to be on April 28th, 2008 applying date, the divisional application of the application for a patent for invention that application number is 200810094822.5.
Technical field
The described embodiment of the application relates to the oil field pump for carry various oilfield fluids to the well in oil field.The embodiment of the oil field pump of employing linear electric motor (LEM) has been described especially, here.Can reduce the quantity of equipment unit with the appearance of LEM replacement bent axle or hydraulic driving technology, thereby reduce the maintenance cost for the pump assembly in oil field.The precision that the fluid that the appearance of LEM also can improve to be provided by pump assembly is carried and the control that this fluid is carried.
Background technique
Drilling well, completion and process oil gas well will use various main equipments.Therefore the cost that, well operations may be aspect capital equipment expense and plant maintenance is naturally higher.In addition, in many cases, no matter spend how many expenses, conventional main equipment all may provide very coarse output.
As the example of large-scale oil field equipment, oil field is usually applied to the displacement pump of many crank-driven.Displacement pump can be very large equipment, and it has the plunger moving towards cavity with away from cavity under the driving of bent axle, significantly to produce high pressure or low pressure on cavity.For high pressure occasion, this is a kind of good selection.In fact, exceed several thousand pounds per square inch the hydrodynamic pressure of (PSl) in the case of producing, generally will use the displacement pump of crank-driven.The displacement pump of crank-driven can be used in large-scale operation, the fracturing of for example well cementation, flexible tube operation, water jet cutting or subsurface rock etc.The fracturing of subsurface rock for example usually need to pump into the fluid that contains abrasive material under 10,000 to 15,000PSI pressure, to produce " crack " in subsurface rock, thereby promotes that oil gas discharges to exploit from blowhole.The displacement pump of above-mentioned crank-driven be content with very little this pressure and large-scale application.
As mentioned above, the displacement pump of crank-driven can comprise various device parts, and these equipments unit must be maintained to guarantee the continuous effect of carried out oil field operation.These equipments unit can comprise relevant motor, transmission system (transmission), bent axle, transmission line (driveline) and other parts, and these component workings are approximately 1, and 500Hp is to approximately 4, between 000Hp.Unfortunately, because this main equipment has many equipments unit that play a role in pump structure, the output level that therefore obtains reliable precision from pump may be difficult.Can adopt the technology of this inexactness of compensation.For example, the operation of crank-driven pump can be carried out under than needed higher output level, and continues the longer time than needed, to guarantee providing minimum output level as given operation.But the inaccuracy output that compensates by this way this pump can cause the waste of pump output and the too early wearing and tearing of pump parts.
In order to solve the intrinsic inexactness of crank-driven pump output, in the situation that field use allows, can replace crank-driven pump by fluid clutch in oil field.The hydraulic pressure character of this pump can provide above-mentioned crank-driven pump the not pump output of obtainable validity.For example, replace and adopt the rotatably straight line motion of actuating plunger of large crankshaft, fluid clutch can comprise that wherein waterpower directly acts on plunger by the plunger of tighter controlled hydro powered.Therefore, can more accurately control the output of fluid clutch.
Unfortunately, adopt fluid clutch may increase significantly equipment used in pumping application and the kind of parts.That is to say, the in the situation that of crank-driven pump, prime mover (prime mover) can be connected to the transmission system (transmission) of the above-mentioned Crankshaft motion of guiding.But the in the situation that of fluid clutch, prime mover is connected to multiple oil hydraulic pumps possibly, adopt described multiple hydraulic pump drive fluid clutch or pressurized machine.Other pump can arrange their hydraulic line between them.In addition, all these equipment and parts (for example, hydraulic line and other valve) must be maintained, and are able to improved benefit with the output accuracy of realizing by using fluid clutch to obtain.That is to say, in order to obtain improved output accuracy, may need the ancillary cost of capital equipment expense and plant maintenance aspect.
Summary of the invention
In one embodiment, the present invention is a kind of oil field pump assembly, and described pump assembly is arranged at oil field, and comprises with respect to the reciprocating plunger of cavity.To-and-fro motion can be used for the well that guides oilfield fluid to leave pump assembly and enter oil field.Plunger can be connected to linear electric motor, thereby is to-and-fro motion supply power.
Brief description of the drawings
Fig. 1 is the local general perspective that uses the reinforcing oil well operation prior art application of crank pump assembly;
Fig. 2 is the local general perspective of reinforcing oil well operation shown in Fig. 1 of the pump assembly of use linear electric motor (LEM);
Fig. 3 is the side perspective view with the embodiment of the LEM pump assembly of the fluid end that is connected to LEM;
Fig. 4 is the side cross-sectional view of the assembly of LEM pump shown in Fig. 3;
Fig. 5 is the side perspective view that adopts the embodiment of the stack LEM pump assembly of fluid end shown in Fig. 3;
Fig. 6 is the side perspective view that adopts the embodiment of many output LEM pump assemblies of fluid end shown in Fig. 3.
Embodiment
With reference to some linear electric motor (LEM) pump assembly, in particular for linear electric motor (LEM) the pump component description of reinforcing oil well operation embodiment.But other operation of oil field also can be used the embodiment of LEM pump assembly as described herein.For example, LEM pump assembly described here can be used on pressure break, drilling well, medicament injects (dosing) and other oilfield fluid is carried operation.In any case, embodiment described here comprises and drives oil field pump assembly with LEM, these are different from bent axle or hydraulic driving technology, therefore, compared with conventional bent axle or fluid clutch assembly, it has reduced equipment unit quantity and maintenance cost potentially, and has increased precision and control that fluid is carried.
Referring now to Fig. 1 and Fig. 2, show respectively crank pump assembly 100 and linear electric motor (LEM) the pump assembly 200 of prior art, crank pump assembly 100 has used the multiple equipment for operation, and LEM pump assembly 200 can directly be plugged electrical source of power 105 to carry out operation.Can power and especially can be used in the apparatus minimizes that power is provided to LEM pump assembly 200 LEM pump assembly 200.For example, utilize transmission line 120 for being unwanted to the motor 110 of the transmission system 115 of the bent axle 129 of crank pump assembly 100 for obtaining useful horsepower from the LEM225 of LEM pump assembly 200 by transmission of power.Similarly, LEM pump assembly 200 does not need various valve or the hydraulic lines that are easy to leakage for transferring power in assembly or between assembly as the situation at conventional hydraulic pump module (not shown).
In an illustrated embodiment, will use pump assembly 100,200 to carry out the well cementing operation in oil field 101.Although the every width figure in Fig. 1 and Fig. 2 only shows a pump assembly 100,200, multiple pump assemblies 100,200 can carry out while operation, for the stratum 190 through oil field 101, well 180 are carried out to well cementing operation.For example, in one embodiment, can approximately 4 to approximately 20 pump assemblies 100,200 be set with the spacing of approximately 10 to 20 feet, and these pump assemblies are used in oil field 101 operations simultaneously to carry out well cementing operation.In interchangeable embodiment, approximately 4 to approximately 20 such pump assemblies can also be connected in this way well 180 and point to well 180 to carry out fracturing work.
Continue to see figures.1.and.2, can utilize cement ascending pipe 186 to carry out well cementing operation, cement ascending pipe 186 advances towards the end of well bore casing section 184 below well head 160.Can be at the pre-aligned blanking plug 188 of the end of well bore casing section 184 so that plugging hole casing section 184.Therefore can guide cement ascending pipe 186 to penetrate blanking plug 188.Once blanking plug 188 is penetrated, due to the power that pump assembly 100,200 provides, cement slurry 170 just can be by cement ascending pipe 186 to delivered downhole.Cement slurry 170 is guided to down-hole in the mode of pressurized, makes it can near the outside of well bore casing 186, be forced upwardly wall 182 1 sides of returning to and be resisted against well 180.Like this, well bore casing 186 can be stabilized in appropriate location securely by cement slurry 170.
Above-mentioned well cementation can utilize pump assembly 100,200 acquisitions that are operated between about 200Hp and about 800Hp, are preferably operated in about 300Hp.By this way, can produce approximately 1,500PSI arrives approximately 15, the pressure between 000PSI, thus under pressure, drive as mentioned above cement slurry 170.Also demonstrate, this well cementation can be by being used multiple pump assemblies 100,200 to obtain, and described multiple pump assemblies 100,200 are linked together by the common transfer manifold (for example,, by transfer line 150) that is finally connected to well head 160.By this way, can drive cement slurry 170 by pump assembly 100,200.
Continue now the specifically crank pump assembly 100 with reference to the prior art in Fig. 1, the LEM pump assembly 200 in itself and Fig. 2 contrasts, and their marked difference is apparent.For example, although two pump assemblies 100,200 all can be used in well cementation or other field use,, crank pump assembly 100 may need plurality of devices parts, and these equipments unit are unnecessary for the operation of LEM pump assembly 200.In addition,, no matter the operation which kind of uses pump assembly 100,200 to carry out, crank pump assembly 100 all may not use the usually obtainable electrical source of power 105 in oil field 101.
As shown in Figure 1, the embodiment of the crank pump assembly 100 of prior art is equipped with crank-driven pump 125, for cement slurry 170 being pumped into discharge tube 130 and being finally pumped into well 180, as mentioned above.Crank-driven pump 125 comprises Large Crankshaft 129, and this Large Crankshaft 129 is for driving triple fluid ends 127, with the pumping of the cement slurry 170 shown in carrying out.Bent axle 129 is sizable Rotatable mechanisms, and it supplies with power by motor 110, and motor 110 shares a crankshaft group backing plate (skid) 140 with crank-driven pump 125.But the same with the motor of many routines, motor 110 needs the intermediary of transmission system 115 and transmission line 120 to the power supply of bent axle 129.Therefore, as mentioned above, crank pump assembly 100 uses the extra equipment unit 115,120 being positioned between power source (, motor 110) and bent axle 129.These parts 115,120 must keep job state.In addition, the intermediary nature of these equipments unit 115,120 can cause the inexactness to a certain degree that fluid end 127 is exported naturally.In addition, as indicated, crank-driven pump 125 can not utilize the power source 105 that conventionally can obtain in oil field 101.
Now in conjunction with Fig. 1 with reference to Fig. 2, Fig. 2 shows the embodiment of LEM pump assembly 200.LEM pump assembly 200 comprises linear electric motor (LEM) 225, and these linear electric motor 225 are connected to triple fluid ends 127 of same type, in the above triple fluid ends 127 is described in conjunction with crank pump assembly 100.But just as will be described in further detail below, LEM225 is directly supplied to power in electric mode.That is to say, unlike the bent axle 129 of crank pump assembly 100, transmitted and obtained power from motor 110 by transmission system 115 and transmission line 120, LEM225 can directly be connected to electrical source of power 105.Therefore, their power and control can not lost in the transport process between power source 105 and LEM225., there are not intervenient transmission system 115, transmission line 120 or miscellaneous equipment parts.But power line 220 is only provided, for LEM225 being attached to electrical source of power 105.In addition, the electronic property of LEM225 allows operation with respect to LEM pump assembly 200 to information sync response or feedback, for example, and from the transducer of the acoustic insulation properties of the LEM pump assembly 200 in monitoring results.
Continue with reference to Fig. 2, electrical source of power 105 can be normal power supplies (still with reference to Fig. 1) common in oil field 101.For shown in application, power source 105 can provide electric power between about 150KW and about 600KW with pumps water mud 170, as shown in the figure to LEM225.By utilizing this power source that is easy to acquisition, owing to having reduced power equipment parts, the modularization of LEM pump assembly 200 can be strengthened.In fact,, according to the requirement of operation, the LEM assembly backing plate 240 being placed on oil field 101 even can have more limited size.In any case the minimizing of equipment unit has reduced the expense of plant maintenance.
Referring now to Fig. 3, show the embodiment of LEM pump assembly 300.For ease of explanation and description, LEM pump assembly 300 has the structure of single fluid end 327, these different from the triple types shown in Fig. 1 and Fig. 2 (referring to triple fluid ends 127).LEM pump assembly 300 comprises above-mentioned LEM325, and LEM325 is connected to fluid end 327 by plunger housing 350.As described below with reference to Fig. 4, LEM325 is configured for drive plunger 450, make its towards with cavity 475 away from fluid end 327, change with the pressure of realizing there.By this way, can carry out suction and the discharge (referring to Fig. 1 and 2) of fluid (for example, cement slurry 170) with respect to fluid end 327.
Continue with reference to Fig. 3 and Fig. 4, wherein at length show the mechanical structure of the LEM pump assembly 300 under job state.That is, above-mentioned plunger 450 can have reciprocating character, as shown in the figure, thereby realizes the pumping of fluid by LEM pump assembly 300.As shown in Figure 4, plunger 450 comprises main body 460, and this main body 460 has with the interactional head 470 of above-mentioned cavity 475 with at the afterbody 435 of LEM cylinder body 425 interior slips.Especially, afterbody 435 can be configured to interact with LEM cylinder body 425 stator 400 around, to realize the to-and-fro motion of above-mentioned plunger 450.
As shown in Figure 4, afterbody 435 adjacent stator 400 of plunger 450 are positioned at LEM cylinder body 425.Stator 400 can, in response to the electricity input from power source, drive the motion of afterbody 435.In an illustrated embodiment, stator 400 comprises the array of magnet and radiating fin.Described magnet can be electromagnetic stator winding, for example, be wound in the line of coil.In any case stator 400 can be by the afterbody 435 of the electronic mode drive plunger 450 of routine in the time being subject to electric actuation.For example, the afterbody 435 of plunger 450 can comprise iron core, in response to the copper strips replacing of this electromagnetic actuation force and sheet iron strip around described iron core.Similarly, in interchangeable embodiment, afterbody 435 can comprise the inner core be made up of ferrous material and the skin of being made up of conductive material around inner core, so that the response to stator 400 to be provided.
Regardless of the concrete structure of adopted stator 400 and plunger tail 435, stator 400 is all realized (for example, from magnet to magnet) in heterogeneous mode, the straight line motion that moves and then return along a direction with drive plunger afterbody 435.This to-and-fro motion of plunger 450 realizes as follows,, between plunger tail 435 and the wall of cylinder body 425, there is no friction that is.That is, the magnetic property at the interface between plunger tail 435 and stator 400 can be self-centering, and plunger tail 435 is not contacted with the wall of cylinder body 425 during to-and-fro motion.
Except reciprocating self contering frictionless character, stator 400 can also move from its afterbody 435 with quite accurate mode drive plunger 450.That is to say, as mentioned above, the power that is supplied to stator 400 is directly, does not therefore need to act on fluid end 327 by other equipment unit conversion.But power is directly sent to plunger tail 435 by the magnet that can accurately control of stator 400, as described herein.The degree of this control also can obtain wider plunger to-and-fro motion speed.For example, compared with having the little accurately speed that the conventional crank-driven pump 125 of larger controlled power transmission device parts can obtain, LEM pump assembly 300 can obtain much lower and high a lot of controlled velocity.
Continue with reference to Fig. 4, plunger 450 be configured to towards with move back and forth away from cavity 475.By this way, plunger 450 is to cavity 475 elevated pressure and low pressure, as mentioned above.For example, in the time that plunger 450 is pushed to cavity 475, the pressure in cavity 475 increases.Some time, the increase of pressure will be enough to make escape cock 485 to be opened, to allow to discharge fluid and the pressure in cavity 475 and to leave discharge route 479.Therefore, this motion of plunger 450 is usually called as discharge stroke.Opening the required pressure size of escape cock 485 can for example, be determined by discharging mechanism 486 (, spring), and this discharging mechanism 486 is maintained in its closed position escape cock 485 until reach required pressure in cavity 475.As mentioned above, the embodiment at LEM pump assembly 300 for well cementing operation, can obtain approximately 1 in the above described manner, and 500PSI is to approximately 15, and the pressure between 000PSI, with pumps water mud 170 (with reference to Fig. 2).
As mentioned above, plunger 450 also acts on low pressure to cavity 475.That is to say, when plunger 450 retreats and during away near exhaust position above cavity 475, the pressure decreased in cavity.Along with the pressure decreased in cavity 475, escape cock 480 will cut out, and make cavity 475 return to closed state.Along with plunger 450 continues to leave cavity 475, the pressure in cavity 475 will continue to decline, finally in the interior acquisition low pressure of cavity 475 or negative pressure.Similar to the action of above-mentioned escape cock 485, pressure decreased is enough to make suction valve 480 to be opened the most at last.Therefore, this motion of plunger 450 is usually called as induction stroke.Opening of suction valve 155 allows fluid to suck cavity 475 from contiguous suction passage 477.Make suction valve 480 open the large I of required pressure and for example, determined by sucker mechanism 481 (, spring), sucker mechanism 481 is maintained in its closed position suction valve 480 until reach required low pressure in cavity 475.
The above-mentioned mechanical structure of LEM pump assembly 300 can be for carrying various fluids in oil field 101 as illustrated in fig. 1 and 2 under pressure.In addition, if the electromagnetic mechanism of given LEM pump assembly 300 can easily obtain multiple this assemblies synchronous that is applied to same well 180 in oil field.For example, LEM pump assembly 300 can be multi-plunger structure, for example, and triple structures (referring to LEM pump assembly 200) as shown in Figure 2.
In this structure, LEM pump assembly of the present invention comprises the plunger of plunger 450 shown in multiple Fig. 4 of being similar to.In multi plungerpump, usually expect to make these plungers synchronous, so that their out-phase relative to each other.For example, the general plunger of expecting to make triple fluid ends is with the phase lock of 180 degree relative to each other.This can by there is independent stator for each plunger 450 provides (for example, the stator 400 of Fig. 4) LEM and in LEM pump assembly of the present invention, realize.Therefore, each plunger 450 can be by independent drive.
In addition, the mechanical structure of LEM pump assembly of the present invention (for example, assembly 200 and 300) is conducive to become stack export structure or the many export structures for increasing power, pressure or total output.
Continue with reference to Fig. 5 and Fig. 6 now, wherein show the alternative embodiment of LEM assembly 500,600.These embodiments comprise for example improvement to above-mentioned LEM assembly 200,300, to solve the output that can obtain from them.
Specifically, with reference to Fig. 5, secondary LEM525 is connected to the elementary LEM325 shown in Fig. 3 and Fig. 4.That is to say, extra or secondary LEM525 by coupling housing 550 be directly connected to elementary LEM325 after.Adopt by this way the secondary LEM525 increase with extra stator and power supply ability (poweringcapacity) to can be used for making the example reciprocating power of plunger 450 as shown in Figure 4.Thereby, can increase the boosting capability of LEM pump assembly 500.
For example can there is benefit (seeing figures.1.and.2) to some application in oil field 101 by using the LEM pump assembly 500 shown in Fig. 5 to increase boosting capability.For example, described Cementing application above in conjunction with Fig. 2, wherein LEM pump assembly 200 is for providing approximately 1, and 500PSI is to approximately 15, and the pressure between 000PSI, to drive in cement slurry 170 in well 180.But in the embodiment shown in fig. 5, LEM pump assembly 500 can be used for providing the pressure that is greater than 15,000PSI, for example, for fracturing fluid being driven in to well to carry out fracturing work.Therefore, single elementary LEM325 has sizable size possibly could realize this supercharging, and the character of linear electric motor allow they with shown in stack or series configuration link up.Therefore, can set up and utilize the size of standard modular linear electric motor.In fact, due to the electric drive character of linear electric motor, can easily obtain the synchronous of this stack or series configuration.
As shown in Figure 6, the output of LEM pump assembly 600 also can be resolved aspect volume.That is to say, as shown in Figure 6, provide a LEM625, it is connected to secondary fluid end 627 by sub-housings 650.That is to say, except obtaining output from elementary fluid end 327 and plunger housing 350, also obtain output from secondary fluid end 627.By this way, and can compare with the output that the LEM pump assembly 300 shown in Fig. 4 obtains from Fig. 3, for each stroke of plunger 450, LEM pump assembly 600 can pumping two volumes or the fluid of quantity.
As mentioned above, the increase of the output quantity of each plunger stroke is the improvement of efficiency aspect.In addition the output increasing by this way, may have special benefit to some application in oil field 101 (referring to Fig. 1 and 2).For example, can carry out DRILLING APPLICATION, wherein, be no more than approximately 5, the mud of 000PSI will be imported into all wells 180 as illustrated in fig. 1 and 2.But, different from above-mentioned well cementation and fracturing work, during drillng operation, use possibly more substantial fluid (for example, mud).Therefore, secondary fluid end 627 is added to LEM pump assembly 600 and may carry out thering is special benefit aspect drillng operation.
By oil field pump assembly, above-described embodiment provides to the delivery profile (deliveryprofile) of the fluid that is fed to oil field control and the precision improved.This is to realize in the situation that not relying on fluid clutch.Therefore, can avoid the increase of equipment unit (for example, hydraulic line and extra valve), thereby reduce maintenance cost.
Carry out description above in conjunction with the preferred embodiments of the present invention.These embodiment persons of ordinary skill in the field are appreciated that in essence not and depart from these embodiments' principle and scope, can make and replace and change the structure of described operation and method.For example, embodiment described here mainly for be well cementation, pressure break and drillng operation, wherein, linear electric motor are driven between about 600KW at about 150KW.For example, but other operation (, medicament injects) can be used oil field pump assembly as described herein, described pump assembly is driven between about 10KW at about 5KW.In addition, description above should not regard as be only described in accompanying drawing and shown in precision architecture.

Claims (23)

1. an oil field pump assembly, comprising:
Plunger, with respect to cavity to-and-fro motion, to guide fluid to leave cavity; With
Linear electric motor, are connected to plunger, for described to-and-fro motion.
2. oil field pump assembly as claimed in claim 1, also comprises the fluid end for holding described cavity, and described cavity is connected to the cylinder body of linear electric motor to hold the afterbody of described plunger.
3. oil field pump assembly as claimed in claim 2, wherein, described linear electric motor comprise stator, the contiguous cylinder body of this stator, thus electromagnetic ground activates the straight line motion of the afterbody of described plunger.
4. oil field pump assembly as claimed in claim 3, wherein, described stator comprises the array of magnet and radiating fin.
5. oil field pump assembly as claimed in claim 3, wherein, described afterbody comprises:
Iron core; With
The skin being made up of band, described band is selected from the group being made up of copper and iron.
6. oil field pump assembly as claimed in claim 3, wherein, described motion is frictionless substantially.
7. oil field pump assembly as claimed in claim 1, wherein, described to-and-fro motion is for fluid being imported to the well in oil field, to carry out there well servicing operation.
8. oil field pump assembly as claimed in claim 7, wherein, described well servicing operation is the one that drilling well, pressure break, well cementation and medicament inject.
9. oil field pump assembly as claimed in claim 7, wherein, oil field pump assembly is the first oil field pump assembly that is connected to well, described well is connected to the second oil field pump assembly, for obtaining fluid from this second oil field pump assembly.
10. oil field pump assembly as claimed in claim 2, wherein, described fluid end is the one in triple structures and single structure.
11. 1 kinds of oil field pump assemblies, comprising:
Plunger, with respect to cavity to-and-fro motion, thereby guiding fluid leaves cavity;
Preliminary linear motor, is connected to plunger, for described to-and-fro motion; With
Secondary linear electric motor, are connected to described preliminary linear motor, to increase reciprocating power.
12. oil field pump assemblies as claimed in claim 11, wherein, the reciprocating power after increase makes fluid being greater than approximately 15, directed under the pressure of 000PSI.
13. oil field pump assemblies as claimed in claim 12, wherein, fluid is imported well by to-and-fro motion, to carry out there fracturing work.
14. 1 kinds of oil field pump assemblies, comprising:
Backing pump fluid end;
Secondary pumps fluid end;
Plunger, to-and-fro motion between the cavity of described backing pump fluid end and the cavity of described secondary pumps fluid end, to guide fluid to leave cavity; With
Linear electric motor, are arranged between described backing pump fluid end and described secondary pumps fluid end, and are connected to plunger, for described to-and-fro motion.
15. oil field pump assemblies as claimed in claim 14, wherein, to-and-fro motion is for importing well by fluid, to carry out there drillng operation.
16. 1 kinds are carried out the method for well servicing operation in the well in oil field, and described method comprises:
Utilize the electrical source of power at oil field place to supply with power to linear electric motor, described linear electric motor are connected to plunger; And
Utilize linear electric motor to make plunger with respect to cavity to-and-fro motion, to guide well servicing fluid leave cavity and enter in well.
17. methods as claimed in claim 16, wherein, described well servicing operation is the one that drilling well, pressure break, well cementation and medicament inject.
18. methods as claimed in claim 16, wherein, described well servicing operation comprises with the fixed well bore casing of cement, and wherein, described well servicing fluid comprises cement slurry.
19. methods as claimed in claim 18, also comprise:
Order about cement slurry by cement ascending pipe and enter in well bore casing, described cement ascending pipe ends in well bore casing; With
Force cement slurry to enter in the space between well bore casing and the borehole wall, so that firm well bore casing.
20. methods as claimed in claim 19, wherein, described in order about step and described in to force step be approximately 1,500PSI, to approximately 15, carries out under the supercharging between 000PSI.
21. methods as claimed in claim 18, wherein, described power supply is transported to linear electric motor at about 150KW between about 600KW.
22. methods as claimed in claim 18, wherein, described linear electric motor are operated in about 200Hp between 800Hp.
23. methods as claimed in claim 18, wherein, described linear electric motor are worked in the heterogeneous mode of electromagnetism.
CN201410231037.5A 2007-04-26 2008-04-28 Oilfield pump assembly and method for well maintenance operation Pending CN103967738A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/740,750 2007-04-26
US11/740,750 US20080264625A1 (en) 2007-04-26 2007-04-26 Linear electric motor for an oilfield pump

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100948225A Division CN101382123A (en) 2007-04-26 2008-04-28 Linear electric motor for an oilfield pump

Publications (1)

Publication Number Publication Date
CN103967738A true CN103967738A (en) 2014-08-06

Family

ID=39885619

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201410231037.5A Pending CN103967738A (en) 2007-04-26 2008-04-28 Oilfield pump assembly and method for well maintenance operation
CNA2008100948225A Pending CN101382123A (en) 2007-04-26 2008-04-28 Linear electric motor for an oilfield pump

Family Applications After (1)

Application Number Title Priority Date Filing Date
CNA2008100948225A Pending CN101382123A (en) 2007-04-26 2008-04-28 Linear electric motor for an oilfield pump

Country Status (3)

Country Link
US (1) US20080264625A1 (en)
CN (2) CN103967738A (en)
WO (1) WO2008132640A2 (en)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE46725E1 (en) 2009-09-11 2018-02-20 Halliburton Energy Services, Inc. Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment
BR122020025348B8 (en) 2011-04-07 2023-04-11 Evolution Well Services METHOD OF DELIVERING A FRACTURING FLUID TO A WELLHOLE, METHOD OF SUPPLYING ELECTRICAL ENERGY FOR AT LEAST ONE FRACTURING SYSTEM IN A WELLHOLE, AND SYSTEM FOR USE IN DELIVERING PRESSURIZED FLUID TO A WELLHOLE
US9140110B2 (en) 2012-10-05 2015-09-22 Evolution Well Services, Llc Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas
US11255173B2 (en) 2011-04-07 2022-02-22 Typhon Technology Solutions, Llc Mobile, modular, electrically powered system for use in fracturing underground formations using liquid petroleum gas
US11708752B2 (en) 2011-04-07 2023-07-25 Typhon Technology Solutions (U.S.), Llc Multiple generator mobile electric powered fracturing system
US11449018B2 (en) 2012-11-16 2022-09-20 U.S. Well Services, LLC System and method for parallel power and blackout protection for electric powered hydraulic fracturing
US11476781B2 (en) 2012-11-16 2022-10-18 U.S. Well Services, LLC Wireline power supply during electric powered fracturing operations
US10036238B2 (en) 2012-11-16 2018-07-31 U.S. Well Services, LLC Cable management of electric powered hydraulic fracturing pump unit
US10407990B2 (en) 2012-11-16 2019-09-10 U.S. Well Services, LLC Slide out pump stand for hydraulic fracturing equipment
US10119381B2 (en) 2012-11-16 2018-11-06 U.S. Well Services, LLC System for reducing vibrations in a pressure pumping fleet
US10232332B2 (en) 2012-11-16 2019-03-19 U.S. Well Services, Inc. Independent control of auger and hopper assembly in electric blender system
US11959371B2 (en) 2012-11-16 2024-04-16 Us Well Services, Llc Suction and discharge lines for a dual hydraulic fracturing unit
US9893500B2 (en) 2012-11-16 2018-02-13 U.S. Well Services, LLC Switchgear load sharing for oil field equipment
US9745840B2 (en) 2012-11-16 2017-08-29 Us Well Services Llc Electric powered pump down
US9995218B2 (en) 2012-11-16 2018-06-12 U.S. Well Services, LLC Turbine chilling for oil field power generation
US9970278B2 (en) 2012-11-16 2018-05-15 U.S. Well Services, LLC System for centralized monitoring and control of electric powered hydraulic fracturing fleet
US10254732B2 (en) 2012-11-16 2019-04-09 U.S. Well Services, Inc. Monitoring and control of proppant storage from a datavan
US10020711B2 (en) 2012-11-16 2018-07-10 U.S. Well Services, LLC System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources
US10526882B2 (en) 2012-11-16 2020-01-07 U.S. Well Services, LLC Modular remote power generation and transmission for hydraulic fracturing system
US9650879B2 (en) 2012-11-16 2017-05-16 Us Well Services Llc Torsional coupling for electric hydraulic fracturing fluid pumps
US9410410B2 (en) 2012-11-16 2016-08-09 Us Well Services Llc System for pumping hydraulic fracturing fluid using electric pumps
US10378326B2 (en) * 2014-12-19 2019-08-13 Typhon Technology Solutions, Llc Mobile fracturing pump transport for hydraulic fracturing of subsurface geological formations
SI3234321T1 (en) 2014-12-19 2020-11-30 Typhon Technology Solutions, Llc Mobile electric power generation for hydraulic fracturing of subsurface geological formations
WO2017048740A1 (en) * 2015-09-15 2017-03-23 Schlumberger Technology Corporation Linear electric motor pump for well treatment
US11181107B2 (en) 2016-12-02 2021-11-23 U.S. Well Services, LLC Constant voltage power distribution system for use with an electric hydraulic fracturing system
US11624326B2 (en) 2017-05-21 2023-04-11 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
WO2019071086A1 (en) 2017-10-05 2019-04-11 U.S. Well Services, LLC Instrumented fracturing slurry flow system and method
CA3078879A1 (en) 2017-10-13 2019-04-18 U.S. Well Services, LLC Automated fracturing system and method
CA3080317A1 (en) 2017-10-25 2019-05-02 U.S. Well Services, LLC Smart fracturing system and method
WO2019113153A1 (en) 2017-12-05 2019-06-13 U.S. Well Services, Inc. High horsepower pumping configuration for an electric hydraulic fracturing system
CA3084596A1 (en) 2017-12-05 2019-06-13 U.S. Well Services, LLC Multi-plunger pumps and associated drive systems
WO2019152981A1 (en) 2018-02-05 2019-08-08 U.S. Well Services, Inc. Microgrid electrical load management
US11035207B2 (en) 2018-04-16 2021-06-15 U.S. Well Services, LLC Hybrid hydraulic fracturing fleet
US20210102530A1 (en) * 2018-05-01 2021-04-08 Cameron International Corporation Fluid pumping using electric linear motor
CA3103490A1 (en) 2018-06-15 2019-12-19 U.S. Well Services, LLC Integrated mobile power unit for hydraulic fracturing
WO2020056258A1 (en) 2018-09-14 2020-03-19 U.S. Well Services, LLC Riser assist for wellsites
WO2020076902A1 (en) 2018-10-09 2020-04-16 U.S. Well Services, LLC Modular switchgear system and power distribution for electric oilfield equipment
US10794165B2 (en) 2019-02-14 2020-10-06 National Service Alliance—Houston LLC Power distribution trailer for an electric driven hydraulic fracking system
CA3072788C (en) 2019-02-14 2024-02-27 National Service Alliance - Houston Llc Parameter monitoring and control for an electric driven hydraulic fracking system
US10753153B1 (en) 2019-02-14 2020-08-25 National Service Alliance—Houston LLC Variable frequency drive configuration for electric driven hydraulic fracking system
US10988998B2 (en) 2019-02-14 2021-04-27 National Service Alliance—Houston LLC Electric driven hydraulic fracking operation
US10738580B1 (en) 2019-02-14 2020-08-11 Service Alliance—Houston LLC Electric driven hydraulic fracking system
US11578577B2 (en) 2019-03-20 2023-02-14 U.S. Well Services, LLC Oversized switchgear trailer for electric hydraulic fracturing
WO2020231483A1 (en) 2019-05-13 2020-11-19 U.S. Well Services, LLC Encoderless vector control for vfd in hydraulic fracturing applications
US11560845B2 (en) 2019-05-15 2023-01-24 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
CA3148987A1 (en) 2019-08-01 2021-02-04 U.S. Well Services, LLC High capacity power storage system for electric hydraulic fracturing
US10815764B1 (en) 2019-09-13 2020-10-27 Bj Energy Solutions, Llc Methods and systems for operating a fleet of pumps
US11555756B2 (en) 2019-09-13 2023-01-17 Bj Energy Solutions, Llc Fuel, communications, and power connection systems and related methods
US10961914B1 (en) 2019-09-13 2021-03-30 BJ Energy Solutions, LLC Houston Turbine engine exhaust duct system and methods for noise dampening and attenuation
CA3092829C (en) 2019-09-13 2023-08-15 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
CA3092859A1 (en) 2019-09-13 2021-03-13 Bj Energy Solutions, Llc Fuel, communications, and power connection systems and related methods
CA3092865C (en) 2019-09-13 2023-07-04 Bj Energy Solutions, Llc Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods
US11002189B2 (en) 2019-09-13 2021-05-11 Bj Energy Solutions, Llc Mobile gas turbine inlet air conditioning system and associated methods
US11015594B2 (en) 2019-09-13 2021-05-25 Bj Energy Solutions, Llc Systems and method for use of single mass flywheel alongside torsional vibration damper assembly for single acting reciprocating pump
US11015536B2 (en) 2019-09-13 2021-05-25 Bj Energy Solutions, Llc Methods and systems for supplying fuel to gas turbine engines
US10989180B2 (en) 2019-09-13 2021-04-27 Bj Energy Solutions, Llc Power sources and transmission networks for auxiliary equipment onboard hydraulic fracturing units and associated methods
US10895202B1 (en) 2019-09-13 2021-01-19 Bj Energy Solutions, Llc Direct drive unit removal system and associated methods
US11009162B1 (en) 2019-12-27 2021-05-18 U.S. Well Services, LLC System and method for integrated flow supply line
US11708829B2 (en) 2020-05-12 2023-07-25 Bj Energy Solutions, Llc Cover for fluid systems and related methods
US10968837B1 (en) 2020-05-14 2021-04-06 Bj Energy Solutions, Llc Systems and methods utilizing turbine compressor discharge for hydrostatic manifold purge
US11428165B2 (en) 2020-05-15 2022-08-30 Bj Energy Solutions, Llc Onboard heater of auxiliary systems using exhaust gases and associated methods
US11208880B2 (en) 2020-05-28 2021-12-28 Bj Energy Solutions, Llc Bi-fuel reciprocating engine to power direct drive turbine fracturing pumps onboard auxiliary systems and related methods
US11208953B1 (en) 2020-06-05 2021-12-28 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit
US11109508B1 (en) 2020-06-05 2021-08-31 Bj Energy Solutions, Llc Enclosure assembly for enhanced cooling of direct drive unit and related methods
US10961908B1 (en) 2020-06-05 2021-03-30 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit
US11022526B1 (en) 2020-06-09 2021-06-01 Bj Energy Solutions, Llc Systems and methods for monitoring a condition of a fracturing component section of a hydraulic fracturing unit
US10954770B1 (en) 2020-06-09 2021-03-23 Bj Energy Solutions, Llc Systems and methods for exchanging fracturing components of a hydraulic fracturing unit
US11066915B1 (en) 2020-06-09 2021-07-20 Bj Energy Solutions, Llc Methods for detection and mitigation of well screen out
US11111768B1 (en) 2020-06-09 2021-09-07 Bj Energy Solutions, Llc Drive equipment and methods for mobile fracturing transportation platforms
US11933153B2 (en) 2020-06-22 2024-03-19 Bj Energy Solutions, Llc Systems and methods to operate hydraulic fracturing units using automatic flow rate and/or pressure control
US11125066B1 (en) 2020-06-22 2021-09-21 Bj Energy Solutions, Llc Systems and methods to operate a dual-shaft gas turbine engine for hydraulic fracturing
US11028677B1 (en) 2020-06-22 2021-06-08 Bj Energy Solutions, Llc Stage profiles for operations of hydraulic systems and associated methods
US11939853B2 (en) 2020-06-22 2024-03-26 Bj Energy Solutions, Llc Systems and methods providing a configurable staged rate increase function to operate hydraulic fracturing units
US11473413B2 (en) 2020-06-23 2022-10-18 Bj Energy Solutions, Llc Systems and methods to autonomously operate hydraulic fracturing units
US11466680B2 (en) 2020-06-23 2022-10-11 Bj Energy Solutions, Llc Systems and methods of utilization of a hydraulic fracturing unit profile to operate hydraulic fracturing units
US11149533B1 (en) 2020-06-24 2021-10-19 Bj Energy Solutions, Llc Systems to monitor, detect, and/or intervene relative to cavitation and pulsation events during a hydraulic fracturing operation
US11220895B1 (en) 2020-06-24 2022-01-11 Bj Energy Solutions, Llc Automated diagnostics of electronic instrumentation in a system for fracturing a well and associated methods
US11193361B1 (en) 2020-07-17 2021-12-07 Bj Energy Solutions, Llc Methods, systems, and devices to enhance fracturing fluid delivery to subsurface formations during high-pressure fracturing operations
US11639654B2 (en) 2021-05-24 2023-05-02 Bj Energy Solutions, Llc Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods
US11725582B1 (en) 2022-04-28 2023-08-15 Typhon Technology Solutions (U.S.), Llc Mobile electric power generation system
US11955782B1 (en) 2022-11-01 2024-04-09 Typhon Technology Solutions (U.S.), Llc System and method for fracturing of underground formations using electric grid power

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348489A (en) * 1965-01-21 1967-10-24 Meyer Ernst Induction pump
US3492819A (en) * 1968-09-10 1970-02-03 Konsonlas John Magnetic fluid pressure converter
US4787823A (en) * 1985-05-22 1988-11-29 Hultman Barry W Electromagnetic linear motor and pump apparatus
US20060029502A1 (en) * 2004-08-06 2006-02-09 Vladimir Kugelev System, method, and apparatus for valve stop assembly in a reciprocating pump
US20060127252A1 (en) * 2004-12-13 2006-06-15 Hamilton Sundstrand Corporation Reciprocating pump system
US7118349B2 (en) * 2004-01-12 2006-10-10 Kenneth Doyle Oglesby High pressure slurry piston pump

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1954831A (en) * 1928-05-07 1934-04-17 Louis H Roller Electromagnetic pump
US2122888A (en) * 1934-10-03 1938-07-05 Joseph F Mcleer Electrical drill or hammer
US2561227A (en) * 1949-06-01 1951-07-17 Wade R Reed Triple capacity plunger pump
US3050129A (en) * 1960-05-09 1962-08-21 Shell Oil Co Apparatus for cementing well casing
FR1472032A (en) * 1965-03-12 1967-03-10 Reciprocating drive machine with electromagnetic control
FR2085507A1 (en) * 1970-04-28 1971-12-24 Drye Lucien
US4281263A (en) * 1978-05-23 1981-07-28 Gradient Hybrid stator and a two-axis induction electric motor constructed therewith
US4249867A (en) * 1979-05-14 1981-02-10 Springhurst Technologies Corp. Windmill having counterbalancing mechanism
FR2491045A1 (en) * 1980-09-30 1982-04-02 Otis Elevator Co AUTOMOTIVE ELEVATOR USING AS A COUNTERWEIGHT A LINEAR ELECTRIC MOTOR
US4692673A (en) * 1982-02-22 1987-09-08 Sanford D. DeLong Electromagnetic reciprocating pump and motor means
US4562385A (en) * 1983-10-17 1985-12-31 Rabson Thomas A Periodic reciprocating motor
FR2573136B1 (en) * 1984-11-15 1989-03-31 Schlumberger Cie Dowell METHOD FOR OBSERVING PUMPING CHARACTERISTICS ON A POSITIVE DISPLACEMENT PUMP AND PUMP FOR CARRYING OUT THIS METHOD.
US4687054A (en) * 1985-03-21 1987-08-18 Russell George W Linear electric motor for downhole use
JPS61266098A (en) * 1985-05-21 1986-11-25 Tokyo Electric Co Ltd Controller for pulse motor
US4924675A (en) * 1987-10-08 1990-05-15 Helix Technology Corporation Linear motor compresser with stationary piston
US4965864A (en) * 1987-12-07 1990-10-23 Roth Paul E Linear motor
GB8805420D0 (en) * 1988-03-08 1988-04-07 Framo Dev Ltd Electrically powered pump unit
FR2640442B1 (en) * 1988-12-12 1991-02-01 Marine Petroleum Equipment CONSTANT POWER AND ALTERNATIVE VERTICAL MOVEMENT UNIT FOR LIFTING STEP LOADS
US5252043A (en) * 1990-01-10 1993-10-12 Uniflo Oilcorp Ltd. Linear motor-pump assembly and method of using same
US5734209A (en) * 1990-01-10 1998-03-31 Uniflo Oilcorp, Ltd. Linear electric motor and method of using and constructing same
FR2725238B1 (en) * 1994-09-30 1996-11-22 Elf Aquitaine INSTALLATION FOR OIL WELLS PROVIDED WITH A DOWNHOLE ELECTRIC PUMP
US6213722B1 (en) * 1996-03-29 2001-04-10 Davor Jack Raos Sucker rod actuating device
US5809157A (en) * 1996-04-09 1998-09-15 Victor Lavrov Electromagnetic linear drive
US5879137A (en) * 1997-01-22 1999-03-09 Jetec Corporation Method and apparatus for pressurizing fluids
US6203288B1 (en) * 1999-01-05 2001-03-20 Air Products And Chemicals, Inc. Reciprocating pumps with linear motor driver
US6663361B2 (en) * 2000-04-04 2003-12-16 Baker Hughes Incorporated Subsea chemical injection pump
US6457522B1 (en) * 2000-06-14 2002-10-01 Wood Group Esp, Inc. Clean water injection system
JP3876611B2 (en) * 2000-11-02 2007-02-07 株式会社日立製作所 Fluid transfer device
US20020092418A1 (en) * 2001-01-12 2002-07-18 Frederick Hefren Triplex drilling mud pump fluid driving implement
WO2003001029A1 (en) * 2001-06-26 2003-01-03 Weatherford/Lamb, Inc. Electrical pump for use in well completion
US6882960B2 (en) * 2003-02-21 2005-04-19 J. Davis Miller System and method for power pump performance monitoring and analysis
US7419223B2 (en) * 2003-11-26 2008-09-02 Cdx Gas, Llc System and method for enhancing permeability of a subterranean zone at a horizontal well bore
US7166069B2 (en) * 2004-04-09 2007-01-23 Otologics, Llc Variable reluctance motor
US7563076B2 (en) * 2004-10-27 2009-07-21 Halliburton Energy Services, Inc. Variable rate pumping system
JP4520834B2 (en) * 2004-11-26 2010-08-11 日東工器株式会社 Electromagnetic reciprocating fluid device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348489A (en) * 1965-01-21 1967-10-24 Meyer Ernst Induction pump
US3492819A (en) * 1968-09-10 1970-02-03 Konsonlas John Magnetic fluid pressure converter
US4787823A (en) * 1985-05-22 1988-11-29 Hultman Barry W Electromagnetic linear motor and pump apparatus
US7118349B2 (en) * 2004-01-12 2006-10-10 Kenneth Doyle Oglesby High pressure slurry piston pump
US20060029502A1 (en) * 2004-08-06 2006-02-09 Vladimir Kugelev System, method, and apparatus for valve stop assembly in a reciprocating pump
US20060127252A1 (en) * 2004-12-13 2006-06-15 Hamilton Sundstrand Corporation Reciprocating pump system

Also Published As

Publication number Publication date
WO2008132640A3 (en) 2009-06-04
US20080264625A1 (en) 2008-10-30
CN101382123A (en) 2009-03-11
WO2008132640A2 (en) 2008-11-06

Similar Documents

Publication Publication Date Title
CN103967738A (en) Oilfield pump assembly and method for well maintenance operation
CA2531202C (en) Pumping water from a natural gas well
US20100116508A1 (en) Hydraulic Pump-Drive Downhole Fluids Pump With Linear Driver
CA2510919C (en) Plunger actuated pumping system
US10221856B2 (en) Pump system and method of starting pump
CN101688530B (en) Positive displacement pump comprising an externally assisted valve
CA2401707A1 (en) Electro-hydraulically pressurized downhole valve actuator
US7789637B2 (en) Numerically controlled reciprocating submersible pump apparatus
US20210102530A1 (en) Fluid pumping using electric linear motor
CN101424180A (en) Well treatment using electric submersible pumping system
CN102713141B (en) Electric hydraulic interface for Modular downhole tool
EP2564019A1 (en) Pumping system
WO2007003597A1 (en) Mehod and apparatus for actuating oilfield equipment
US5813469A (en) Coupled downhole pump for simultaneous injection and production in an oil wheel
WO2006039719B1 (en) Subsea fluid delivery system and method
GB2453462A (en) Integrated pump assembly for well completion
CA2541481A1 (en) Method and apparatus for installing strings of coiled tubing
US20110052417A1 (en) Method of driving a well pump
EP1149980A2 (en) Downhole hydraulic power unit
US10087719B2 (en) Systems and methods for artificial lift subsurface injection and downhole water disposal
AU2013336649B2 (en) Wireline pump
CN210483673U (en) Rodless oil production pipe column of electric submersible hydraulic piston pump
CN104135135A (en) High-efficiency large-thrust cylindrical permanent-magnet linear motor for oil pumping unit
WO2013141735A1 (en) Oil well unit (alternatives)
Chen et al. Review of electrical machine in downhole applications and the advantages

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140806