WO2016051223A1 - Unité hydraulique améliorée pour équipement d'extraction utilisé dans l'industrie pétrolière - Google Patents

Unité hydraulique améliorée pour équipement d'extraction utilisé dans l'industrie pétrolière Download PDF

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Publication number
WO2016051223A1
WO2016051223A1 PCT/IB2014/002024 IB2014002024W WO2016051223A1 WO 2016051223 A1 WO2016051223 A1 WO 2016051223A1 IB 2014002024 W IB2014002024 W IB 2014002024W WO 2016051223 A1 WO2016051223 A1 WO 2016051223A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic
extraction
improved
further characterized
piston
Prior art date
Application number
PCT/IB2014/002024
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English (en)
Spanish (es)
Inventor
Josefina ATILANO-SÁNCHEZ
Benito ARMENDARIZ-CANTÚ
Original Assignee
Cherry Select, S.A.P.I. De C.V.
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 Cherry Select, S.A.P.I. De C.V. filed Critical Cherry Select, S.A.P.I. De C.V.
Priority to PCT/IB2014/002024 priority Critical patent/WO2016051223A1/fr
Publication of WO2016051223A1 publication Critical patent/WO2016051223A1/fr

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Classifications

    • 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
    • F04B47/04—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level the driving means incorporating fluid means

Definitions

  • the present invention is related to the design, construction and optimization of equipment used for the extraction of hydrocarbons in mature and / or marginal oil fields, and more particularly it is related to an improved hydraulic unit for extraction equipment used in the oil industry .
  • the basic objective pursued by increasing the productivity of the deposits is to achieve an increase in the recovery of the hydrocarbons contained therein, thereby extending the useful life of the deposit and improving its profitability. Because mature deposits have a existing infrastructure, it is not necessary to make large investments in treatment and / or transport systems, which would be needed in new developments, or, to make a strong investment for drilling new wells.
  • One of the most significant examples of prior art extraction units is the mechanical pump or pump jack (for its translation into English), which consists of a long hammer-shaped beam, moved by an external power supply (motor electric and / or internal combustion).
  • a plurality of rods interconnected with each other and arranged longitudinally inside an extraction pipe is connected to one of the end ends of the beam.
  • a reciprocating pump formed by a piston that travels inside a barrel tube is connected to the plurality of rods at its lower end. As the terminal end of the beam rises, the plurality of rods transmits the movement and causes the plunger to rise; when the end of the beam descends, so does the piston.
  • the other end Beam terminal is connected to a motion transmission system, which is attached to the power supply, thus providing continuous oscillating movement of the beam.
  • the aforementioned extraction unit has several drawbacks: a previously cast concrete platform is required in place to position said unit; its installation in the workplace requires a large number of people and can take days; Its operating and maintenance costs are high and generate auditory, visual and environmental contamination in its surroundings.
  • the extraction unit described above has the disadvantage that the storage device that is responsible for recovering and / or extending the continuous body, is formed by a drum driven by an electric motor, where said device is outdated and requires significant space to operate correctly. Also, the elements of said configuration are exposed to premature wear of the continuous body, due to the constant friction generated by the friction of the surface of the drum and its travel on said continuous body.
  • US Patent No. 4,480,685 which describes an extraction unit comprising a submerged reciprocating pump that is mounted in a pipe arrangement that communicates with the wellhead; a string of rods which extends through the pipe arrangement and is connected to the pump; and, an arrangement of a pumping jacket and a filling box disposed on the well housing in the wellhead and including an arrangement of sealed rods in the filling case, which is connected to said rod string already
  • the extraction unit includes a hydraulic cylinder and support means that include a gimbal arrangement for supporting the hydraulic cylinder on the filling box, with the axis of the hydraulic cylinder rod aligned with the axis of said filling box.
  • Coupling means are provided to couple the hydraulic cylinder rod to the sealed rod array.
  • a hydraulic transmission / control unit is coupled to the inlet / outlet of the fluid line for the operating cycle, which consists of an upward stroke (hydraulic energy) and a downward stroke (gravity).
  • One of the disadvantages of the aforementioned extraction unit is that it requires an assistance cylinder and an accumulator to offset part of the weight of the rod string and thus reduce the workload on the hydraulic fluid pump, which It represents a higher probability of failure.
  • Another disadvantage is that the string of rods is subject to periodic mechanical stresses of axial and shear type, which results in frequent failures due to fatigue of the components.
  • a pump rod is interconnected to the piston and extends beyond the lower end of the cylinder; a sealing device is fixed to the lower end of the cylinder and receives the piston rod; a "T" joint (Flow Tee) is held between the pipe and the lower end of the cylinder and reciprocally receives the piston rod; and, a controlled hydraulic power system provides fluid pressure to the cylinder.
  • a "T" joint Flow Tee
  • the aforementioned extraction unit is complex, which translates into a high manufacturing cost, which increases the final cost of the equipment.
  • An additional disadvantage with this unit is that it does not have a specific control unit responsible for autonomously modifying the speed and / or the stroke of the piston, which is very necessary when these types of units are installed in mature deposits and / or marginal.
  • a further object of the present invention is to provide an improved hydraulic unit for extraction equipment used in the oil industry, which allows for low operating and maintenance costs, as well as high reliability in all its elements.
  • a further object of the present invention is to provide an improved hydraulic unit for extraction equipment used in the oil industry, which allows to reduce the problems of noise, support and corrosion, being quiet operation, light construction and no moving parts exposed to the weather.
  • Another additional object of the present invention is to provide an improved hydraulic unit for extraction equipment used in the oil industry, which allows for shorter installation and commissioning times than the extraction units found in the prior art.
  • a further object of the present invention is to provide an improved hydraulic unit for extraction equipment used in the oil industry, which allows the remote operation parameters to be monitored and corrected by means of telemetry.
  • a further object of the present invention is to provide an improved hydraulic unit for extraction equipment used in the oil industry, which allows automated operation based on the conditions present in the well.
  • the present invention is related to an improved hydraulic unit for extraction equipment comprising a hydraulic system that is interconnected to an oil extraction bottom insert pump, which is responsible for supplying the hydraulic power necessary for said operation to operate. bottom extraction pump; and, a control system that controls the operation of the hydraulic system, which is responsible for monitoring, recording, controlling and modifying all the necessary parameters for the correct operation and operation of the improved hydraulic unit in conjunction with the bottom insert pump of oil extraction.
  • the hydraulic system is made up of a hydraulic cylinder whose function is to allow the cyclical movement of ascent and descent of the extraction bottom pump; a hydraulic pump driven by a first motor and interconnected to the hydraulic cylinder, whose function is to pressurize the hydraulic fluid of said hydraulic system to allow displacement of the extraction bottom insert pump; a heat exchanger coupled to a cooling fan driven by a second motor, to regulate the temperature of the hydraulic fluid within the hydraulic system; a first adjustment valve to control the ranges of pressure and ascent rate within the hydraulic cylinder; a second adjustment valve to control the pressure and speed ranges in the descent into the hydraulic cylinder; a third adjustment valve that allows fine adjustments of the pressure and speed in the descent into the hydraulic cylinder; a check valve, which prevents the return of pressurized hydraulic fluid to the hydraulic pump; and, a reservoir of hydraulic fluid, which is responsible for storing the hydraulic fluid that circulates throughout the hydraulic system.
  • the control system is made up of a first control module that is interconnected to a second control module and a third control module, which is responsible for distributing electrical energy to all the devices that integrate the improved hydraulic unit extraction; a second control module interconnected to the first control module, which is responsible for controlling the operation of the first motor of the hydraulic system; and, a third control module that is interconnected with the first module, which is responsible for controlling the operation of the improved hydraulic extraction unit object of the present invention.
  • the first module comprises a main switch, a transformer and a plurality of motor guards.
  • the second control module is made up of a reduced voltage starter, which is responsible for starting the first motor of the hydraulic system.
  • the third control module is made up of a central control team; a plurality of control devices that are interconnected to the central control equipment; a plurality of peripheral control devices that are interconnected to the central control equipment; and, a telemetry device interconnected to the central control equipment.
  • Figure 1 is a schematic view of the main elements that make up each of the systems that integrate the present improved hydraulic unit for oil extraction equipment of the present invention.
  • Figure 2 is a flow chart showing the interconnection of the elements that constitute the hydraulic system that is part of the improved hydraulic unit for oil extraction equipment of the present invention.
  • Figure 3 is a schematic view of the main elements that make up the control system that is part of the improved hydraulic unit for oil extraction equipment of the present invention.
  • FIGS. 1 to 3 there is shown an improved hydraulic unit 1000 for oil extraction equipment, constructed in accordance with a particularly preferred embodiment of the present invention, which should only be considered as illustrative but not limited thereto.
  • said improved hydraulic unit 1000 for oil extraction equipment comprises: a hydraulic system 100 that is interconnected to a bottom extraction pump 3000 for oil extraction, which is responsible for supplying the hydraulic power necessary for said bottom insertion pump 3000 to operate; and, a control system 200 that controls the operation of the hydraulic system 100, which is responsible for monitoring, recording, controlling and modifying all the parameters necessary for the correct operation and operation of the improved hydraulic unit 1000 in conjunction with the pump Bottom insert 3000 oil extraction.
  • the improved hydraulic unit 1000 during its operation is normally installed on the surface part of an oil field considered mature and / or marginal.
  • Said oilfield has a production pipeline that extends from the surface to where the hydrocarbons are located in said reservoir.
  • a bottom-level oil extraction pump 3000 is anchored, which operates by an upward and downward cyclic movement, so that the necessary pressure is generated by positive displacement so that hydrocarbons flow to the surface.
  • the configuration and elements that make up the bottom extraction pump 3000 for oil extraction are described in US Patent No. US 6,497,281 B2, so a more detailed explanation will not be given in this regard. It should be mentioned that the bottom extraction pump 3000 for oil extraction is interconnected to the improved hydraulic unit 1000 through an interconnection element 2000, which in a preferred embodiment is a metal cable.
  • the hydraulic system 100 is made up of at least one hydraulic cylinder 110, whose function is to allow the cyclical movement of ascent and descent of the bottom insertion pump 3000 for oil extraction; a hydraulic pump 130 driven by a first motor 120 and interconnected to the hydraulic cylinder 110, whose function is to pressurize the hydraulic fluid of said hydraulic system 100 to allow the displacement of the bottom insertion pump 3000 for oil extraction; a heat exchanger 150 coupled to a cooling fan 145 driven by a second motor 140, to regulate the temperature of the hydraulic fluid within the hydraulic system 100; a first adjusting valve 160 to control the pressure ranges and ascent rate within the hydraulic cylinder 110; a second adjustment valve 170 for controlling the pressure and speed ranges in the descent into the hydraulic cylinder 110; a third adjustment valve 180 which allows fine adjustments of the pressure and speed in the descent into the hydraulic cylinder 110; a check valve 190, which prevents the return of pressurized hydraulic fluid to the hydraulic pump 130; and, a reservoir 195 of hydraulic fluid, which is responsible for storing the hydraulic fluid circulating
  • the hydraulic cylinder 110 comprises a sleeve 111 whose shape is that of a hollow cylinder oriented vertically, which includes at least, inside, a piston 112 and a rod 113 interconnected to said piston 112.
  • the rod 113 at its bottom It is coupled to the interconnection element 2000, as can be seen in FIG. one.
  • both the jacket 111 and the piston 112 are made of a metallic material, preferably steel, wherein said piston 112 also has a bronze coating, in order to prolong the life of the interior of jacket 111.
  • piston 11 has a first nitrile seal, and a second tetrafluoroethene seal, whose trade name is Teflon®.
  • the length of the hydraulic cylinder 110 varies depending on the necessary stroke so that the bottom extraction pump 3000 for oil extraction can operate correctly. However, its running length can range between 3.05 meters and 7.62 meters, with a length of 6.1 meters being preferred.
  • the hydraulic cylinder 110 is of simple effect and has an inlet / outlet port 114 at its lower end, where hydraulic fluid enters and exits the hydraulic system 100.
  • hydraulic fluid pressurized by said inlet / outlet 1 14 enters this causes the piston 112 and the rod 113 rise.
  • the piston 112 and the rod 113 descend to their initial position.
  • said hydraulic cylinder 110 has a double seal (not shown in the figures) to avoid any leakage of hydraulic fluid to the outside.
  • the double seal is constructed of a material that resists up to 6,000 psi and up to 200 ° C. (for example: chevron®)
  • the first motor 120 is preferably an electric type motor, which is coupled to the hydraulic pump 130, which, when operated together, generates the hydraulic pressure necessary for the piston 112 and the rod 113 of the hydraulic cylinder 110 to rise.
  • said first motor 120 is a 50 hp three-phase electric motor, while hydraulic pump 130 is an axial type pump that has an expense of 30 gpm.
  • the second motor 140 is coupled to a cooling fan 145, whose operation is controlled by the control system 200.
  • the fan 145 is responsible for providing an air stream to the heat exchanger 150 for cooling. of the hydraulic fluid. Said configuration allows to regulate the temperature of the hydraulic fluid within the hydraulic system 100, such that said temperature is at all times at its optimum operating temperature.
  • Both the first, second and third adjustment valves 160, 170 and 180 respectively are valves that are adjusted manually according to the requirements of the oil field where the present improved hydraulic unit 1000 is installed.
  • the first valve 160 controls the pressure in the upward movement
  • the second valve 170 controls the pressure in the downward movement
  • the third valve 80 is a fine adjustment valve in the downward movement.
  • the first adjustment valve 160 is located between the hydraulic pump 130 and the heat exchanger 150
  • the second adjustment valve 170 is located between the hydraulic cylinder 110 and the reservoir 195
  • the third adjustment valve 180 is located between the second adjustment valve 170 and the reservoir 195, as can be seen in FIG. 2.
  • FIG. 3 shows the configuration of the control system 200, which is comprised of a first control module 210 that is interconnected to a second control module 220 and a third control module 230, which is responsible for distribute the electrical energy to all the devices that integrate the improved hydraulic extraction unit 1000; a second control module 220 interconnected to the first control module 210, which is responsible for controlling the operation of the first motor 120 of the hydraulic system 100; and, a third control module 230 that is interconnected with the first module 210, which is responsible for controlling the operation of the improved hydraulic extraction unit 1000 object of the present invention.
  • the first control module 210 comprises all those elements necessary to distribute the electrical energy to the electrical and electronic equipment that make up the present improved hydraulic extraction unit 1000.
  • Said First module 210 comprises at least one main switch, a transformer and a plurality of motor guards (not shown in the figures).
  • the power supply that receives said first module 2 0 can be: 440 Vac (three phase, 60hz); 220 Vac (three phase, 60Hz); and, 220 Vac (single phase, 60hz), which depends on the operating conditions that are required for the extraction of hydrocarbons from the reservoir.
  • the transformer is responsible for transforming electrical energy to a useful value for the power supply of the devices that make up the third control module. In a preferred embodiment, the transformer converts the voltage from 440 Vac to 120 Vac.
  • the plurality of motor guards are used both for overcurrent protection in the first motor 120, and in the second motor 140.
  • the main switch, transformer and motor guard are housed inside a first cabinet 211.
  • the second control module 220 is formed at least by a reduced voltage starter (not shown in the figures), which is responsible for operating the first motor 120 of the hydraulic system 100. Said reduced voltage starter has the characteristic of smoothing the start of the first motor 120, in order to avoid high peaks of electric power consumption.
  • the second module 220 receives the electrical energy of the first subsystem 210. Likewise, all the elements that make up the second module 220 are housed inside a second cabinet 221.
  • the third control module 230 is formed at least by a central control equipment 231; a plurality of control devices 232 that are interconnected to the central control equipment 231; a plurality of peripheral control devices 233 that are interconnected to central control equipment 231; and, a telemetry device 234 interconnected to the central control equipment 231. All the aforementioned elements are housed inside a third cabinet 235.
  • the first cabinet 2 1, the second cabinet 221 and the third cabinet 235 have ventilation slots, both on their side walls and on their upper and lower walls. This configuration allows to achieve adequate ventilation of the equipment inside, which considerably reduces failures due to high temperatures, even in regions with desert climates. These vents may be present in all elements of the hydraulic system 100 and not exclusively in the first cabinet 211, second cabinet 221 and third cabinet 235.
  • the central control equipment 231 is made up of a programmable logic controller 2311 (PLC) which is responsible for controlling and coordinating the operation of the improved hydraulic extraction unit 1000; and, an operation terminal 2312 (HMI), which is used to assign the process control values to the programmable logic controller 2311 and for monitoring the operating status of the improved hydraulic extraction unit 1000 .
  • PLC programmable logic controller
  • HMI operation terminal 2312
  • a plurality of operation buttons (not shown in the figures); a plurality of level sensors (not shown in the figures); a plurality of filter monitoring sensors (not shown in the figures); a proximity sensor 2321; a temperature transducer 2322; a pressure transducer 2323; and, a flow transducer 2324 (flow meter).
  • the proximity sensor 2321 is located in the upper part of the jacket 11 and is responsible for sensing the passage of the piston 112 through said position.
  • the temperature transducer 2322 is in contact with the hydraulic fluid of the hydraulic system 100 and is responsible for constantly measuring the temperature of said hydraulic fluid, wherein said information is used by the programmable logic controller 231, to control the operation of the second motor 140 of said hydraulic system 100.
  • said temperature transducer 2322 is located between the hydraulic cylinder 110 and the second adjustment valve 170.
  • the pressure transducer 2323 is a device that is constantly monitoring the pressure of the hydraulic fluid inside the hydraulic system 100 and is responsible for sending signals with said measurements to the programmable logic controller 2311, where they are processed by an algorithm and the weight is obtained which is raising the piston 112 of the hydraulic cylinder 1 0.
  • said pressure transducer 2323 is located between the hydraulic cylinder 110 and the second adjustment valve 170.
  • the flow transducer 2324 is a device that measures the expense of the hydraulic fluid in the hydraulic system 100 when the piston 112 of the hydraulic cylinder 110 descends and sends signals with said measurements to the logic controller programmable, where they are processed by an algorithm and the longitudinal displacement of the piston 112 within the hydraulic cylinder 110 is obtained.
  • the flow transducer 2324 is of the unidirectional type and is located between the second valve of set 170 and reservoir 195.
  • the plurality of peripheral control devices 233 are at least a first hydraulic solenoid valve 2331 that is in fluid communication with the first adjustment valve 160 and the reservoir 195; and, a second hydraulic solenoid valve 2332 which is in fluid communication with the second adjustment valve 70 and the third adjustment valve 180.
  • the plurality of peripheral control devices 233 also includes a valve proportional (not shown in the figures).
  • the first hydraulic solenoid valve 2331 when energized, allows the passage of pressurized hydraulic fluid to the hydraulic cylinder 110 through the inlet / outlet port 114, which causes the piston 112 to rise.
  • the second hydraulic solenoid valve 2332 when energized, allows the pressurized hydraulic fluid to exit the hydraulic cylinder 110 through the inlet / outlet port 114.
  • the telemetry device 234 that is interconnected with the central control equipment 231 allows the operation of the hydraulic unit 1000 to be monitored remotely, by sending and receiving satellite signals.
  • the programmable logic controller 2311 is responsible for carrying out the following processes: control of the pressure and force of the hydraulic system 100; control of the position of the displacement of the piston 112 within the hydraulic cylinder 11; control of the fluid temperature of the hydraulic system 100; control of the waiting times of the piston 112 inside the hydraulic cylinder 110; control of the piston strokes 113, etc.
  • Operation terminal 2312 is interconnected to programmable logic controller 2311 via an RS232 communication protocol.
  • operating values that are supplied to the programmable logic controller 23 1 via the operating terminal 2312 are: the desired operating pressure; distance that piston 112 will travel within hydraulic cylinder 110; the waiting times to get the desired races; the temperature at which it is required to start the second motor 140, among others.
  • the operation terminal 2312 can display information to a user of the present improved hydraulic extraction unit 1000, within which is: graphs of the dynamometric charts; number of strokes per minute, day and / or week; working pressure of the hydraulic system; distance traveled by the piston 12 within the hydraulic cylinder 1 10; hydraulic system temperature 100; etc.
  • said operation terminal 2312 also has the ability to collect data for the generation of dynamometric chart graphs and store said information in an internal memory to be consulted at a later date.
  • said operation terminal 2312 has a USB type communication port.
  • the operation of the improved oil extraction unit 000 in autonomous mode is detailed below: Before starting the operation of said improved oil extraction unit 1000, in the operation terminal 2312 the times at which the piston is assigned 1 2 must remain at its highest point and in its initial position (lowest point), as well as the length that the piston 112 and the rod 113 must travel. Likewise, the first adjustment valve 160, the second valve of adjustment 170, and the third adjustment valve 180.
  • the first motor 120 When the improved hydraulic unit 000 is put into operation, the first motor 120 is started, which puts the hydraulic pump 130 into operation, thus generating hydraulic pressure in the hydraulic system 100.
  • the control system 200 energizes the first solenoid valve 2331, and in conjunction with the first adjustment valve 160, allows the passage of pressurized hydraulic fluid to the hydraulic cylinder 110.
  • the pressurized hydraulic fluid enters the inlet / outlet port 114 and pushes the piston 112 and the rod upwards 113, thus generating the upward movement of the extraction bottom insertion pump 3000.
  • the piston 112 Once the piston 112 reaches the highest point of its stroke inside the jacket 111 and is detected by the proximity sensor 2321, it sends a signal to programmable logic controller 2311 to turn off the first solenoid valve 2331.
  • the piston 112 and the rod 113 remain in their position for the time that has been entered in the operation terminal 2312. Once this is fulfilled In time, the control system 200 energizes the second solenoid valve 2332 and in conjunction with the second adjustment valve 170 and third adjustment valve 180, the pressurized fluid exits the hydraulic cylinder 110 through the inlet / outlet port 4, causing the piston 112 and rod 13 descend to their initial position (lowest point). With this, the downward movement of the extraction bottom insert pump 3000 also occurs.
  • the flow transducer 2324 is responsible for sensing the hydraulic fluid that returns to the reservoir 195 and sends said signal to the control system 200, and specifically to the programmable logic controller 2311, which, by means of an algorithm, converts said signal in the distance traveled by the piston 2 and the rod 113 within the cylinder 10 of the present improved hydraulic extraction unit 1000.
  • the control system 200 turns off the second solenoid valve 2332.
  • the piston 112 and rod 113 remains in this position for as long as it has been charged in the operation terminal 2312. After that time , the control system 200 energizes the first solenoid valve 2331 again and the cycle repeats continuously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

La présente invention concerne une unité hydraulique améliorée pour équipement d'extraction qui comprend un système hydraulique qui est relié à une pompe d'insertion de fond d'extraction de pétrole, lequel se charge de fournir l'énergie hydraulique nécessaire pour faire fonctionner ladite pompe d'insertion de fond d'extraction; et, un système de commande qui commande le fonctionnement du système hydraulique, lequel se charge de surveiller, enregistrer, contrôler et modifier tous les paramètres nécessaires pour l'exploitation et le fonctionnement corrects de l'unité hydraulique améliorée conjointement à la pompe d'insertion de fond d'extraction de pétrole, la pompe d'insertion de fond d'extraction étant reliée à l'unité hydraulique améliorée par l'intermédiaire d'un élément d'interconnexion.
PCT/IB2014/002024 2014-10-03 2014-10-03 Unité hydraulique améliorée pour équipement d'extraction utilisé dans l'industrie pétrolière WO2016051223A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/IB2014/002024 WO2016051223A1 (fr) 2014-10-03 2014-10-03 Unité hydraulique améliorée pour équipement d'extraction utilisé dans l'industrie pétrolière

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PCT/IB2014/002024 WO2016051223A1 (fr) 2014-10-03 2014-10-03 Unité hydraulique améliorée pour équipement d'extraction utilisé dans l'industrie pétrolière

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761120A (en) * 1986-06-23 1988-08-02 Mayer James R Well pumping unit and control system
WO2007090193A2 (fr) * 2006-02-01 2007-08-09 Petro Hydraulic Lift System, L.L.C. Appareil de pompage de puits de petrole hydraulique
US20120114510A1 (en) * 2007-01-29 2012-05-10 Brown T Leon Reciprocated Pump System for Use in Oil Wells
US20140079560A1 (en) * 2012-09-14 2014-03-20 Chris Hodges Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761120A (en) * 1986-06-23 1988-08-02 Mayer James R Well pumping unit and control system
WO2007090193A2 (fr) * 2006-02-01 2007-08-09 Petro Hydraulic Lift System, L.L.C. Appareil de pompage de puits de petrole hydraulique
US20120114510A1 (en) * 2007-01-29 2012-05-10 Brown T Leon Reciprocated Pump System for Use in Oil Wells
US20140079560A1 (en) * 2012-09-14 2014-03-20 Chris Hodges Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore

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