WO2013136244A2 - Unité hydraulique de pompage mécanique à roulis - Google Patents

Unité hydraulique de pompage mécanique à roulis Download PDF

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Publication number
WO2013136244A2
WO2013136244A2 PCT/IB2013/051873 IB2013051873W WO2013136244A2 WO 2013136244 A2 WO2013136244 A2 WO 2013136244A2 IB 2013051873 W IB2013051873 W IB 2013051873W WO 2013136244 A2 WO2013136244 A2 WO 2013136244A2
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
pedestal
balancing
counterweights
actuator
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.)
Ceased
Application number
PCT/IB2013/051873
Other languages
English (en)
Spanish (es)
Other versions
WO2013136244A3 (fr
Inventor
Alejandro LADRON DE GUEVARA
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.)
SERINPET Ltda REPRESENTACIONES Y SERVICIOS DE PETROLEOS
Original Assignee
SERINPET Ltda REPRESENTACIONES Y SERVICIOS DE PETROLEOS
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 SERINPET Ltda REPRESENTACIONES Y SERVICIOS DE PETROLEOS filed Critical SERINPET Ltda REPRESENTACIONES Y SERVICIOS DE PETROLEOS
Priority to MX2014011021A priority Critical patent/MX2014011021A/es
Priority to CN201380023434.7A priority patent/CN104641071A/zh
Priority to CA2873344A priority patent/CA2873344A1/fr
Publication of WO2013136244A2 publication Critical patent/WO2013136244A2/fr
Publication of WO2013136244A3 publication Critical patent/WO2013136244A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive

Definitions

  • the present invention relates to the field of Mechanical Engineering Particularly with Mechanical Engineering applied to Petroleum engineering. More particularly to techniques and equipment of artificial lifting of hydrocarbons.
  • Hydraulic mechanical pumping units correspond to equipment that performs the artificial lifting of oil which is located underground. For this they can use a system hydraulic composed of a series of independent elements. Usually, these units use motors and other accessory elements to generate the force necessary to perform the lifting of the fluid and the mechanism of lifting this.
  • Colombian patent application with file number 10 130183 describes a hydraulic pumping unit mechanical, consisting of a hydraulic power module and a pedestal with hydraulic actuator Said invention works when the first pump of a dual system takes the hydraulic oil that is inside the tank hydraulic oil and sends it in the form of flow and pressure to the actuator hydraulic that is located at the top of the pedestal. In this way, the actuator hydraulic, lifts the load necessary to put a well into production.
  • US4187680 describes a pumping unit that includes a module hydraulically powered by a double acting hydraulic cylinder that oscillates vertically.
  • the design of this unit also includes a chain auger that crawls on a jagged surface with a section anchored against the vertical and other movement that is fixed to a rod so that the vertical movement imparted to the polish rod is twice as much as Hydraulically imparted to the drive unit.
  • the rod load chain polish is opposed by a counterweight connected to it by a chain that extends over an elevated pulley.
  • Pump outlet hydraulic that supplies the hydraulic cylinder is controlled cam, so that the movement of the drive unit is smoothly decelerated and accelerated when approaching and moving from the upper and lower limits of your movement
  • the hydraulic actuator acts to understanding and not tension, making its operation complex between two pulleys
  • the chains that balance the weight use two weights independent, which can generate an imbalance in the structure of this unity.
  • patent document GR1005062 discloses a hydraulic attachment comprising a friction pulley that pulls cables held at one end of a balance weight and in the another of a cabin suspension frame that slides on rails guide and which consists of the hydraulic motor, the reducer (when necessary), elastic or high pressure metal pipes and a power unit, composed of a tank that contains liquid (mineral oil, water or any other) that inside the electric motor contains a pump, a valve control block and other indispensable instruments intended for control pressure, supply, viscosity and temperature.
  • Unit power also includes a cooling fluid system to improve the exploitation of fluid properties.
  • This system does not include type devices actuators for long range and is based only on the torque it can generate the motor for driving high friction pulleys. This implies a disadvantage in terms of force and speed control that is exercised in the load.
  • Patent application CN 101307685 reveals, by its part, a long-range hydraulic pumping unit, comprising a frame, a pumping rod and a weight box that is provided with a counterweight.
  • the unit described also comprises an oil box, a liquid inlet and a hydraulic pump connected to the oil box, where an output of the hydraulic pump is connected to an input of a hydraulic reversing valve.
  • the actuator, the pulleys and the Counterweights are connected in series, so a very alignment is required precise between the wires and the actuator. More space is also required because the hydraulic actuator is located on the floor horizontally.
  • patent document CN2656630 describes a hydraulic variable frequency pumping unit, comprising a mechanical system, a hydraulic system, in addition to a detection system and control consisting of an AC converter and a controller.
  • This invention adopts variable voltage and frequency technologies to control the speed of an asynchronous three phase current motor with the in order to control the output flow of the constant hydraulic pump to operate the hydraulic cylinder and thus control the operating speed of the pumping unit.
  • use the equilibrium form of accumulated counterweight reduces the installed power of the pumping unit and the downward stroke potential of the pumping unit is used so effective with a clear effect on energy consumption.
  • variable frequency of pumping unit Hydraulic has the functions of continuous continuous speed regulation and You can regulate the scope.
  • the patent document RO201000035 refers to a pumping unit of this type comprising a hydraulic motor that has a cavity with a piston, a hollow rod, a safety valve, an oil tank and a pump.
  • This pump consists of a cylindrical body, provided with suction and pressure valves of type sliding and an elastic diaphragm made in the form of a membrane located in the cylindrical body, which is fixed in some tapered bushings. He cylindrical body is provided with lower and upper covers having some reduced interconnected internal couplings by means of a pipe and mounted inside the elastic diaphragm, the hydraulic motor it is coupled to the lower cover of the cylindrical body; through a oil filled cylinder.
  • the oil tank is provided with another piston and with another diaphragm whose cavity communicates with the oil tank located under the piston, the diaphragm is located in a perforated body whose Cavity communicates with an oil well filled with liquid layer.
  • this unit is designed for low wells productivity does not include a system of efficiency increase or decrease in energy consumption
  • the present invention simplifies the design and optimizes the operation of the units described in the state of the technique, when using a compact power unit and a balancing system which reduces operating costs, energy consumption and volumetric and increases the productivity.
  • Hydraulic mechanical pumping units correspond to equipment that performs the artificial lifting of oil which is located underground. For this they can use a system hydraulic composed of a series of independent elements. Usually, these units use motors and other accessory elements to generate the force necessary to perform the lifting of the fluid and the mechanism of lifting this.
  • the patent application Colombian with file number 10 130183 describes a hydraulic unit of mechanical pumping, consisting of a hydraulic power module and a pedestal With hydraulic actuator.
  • Said invention works when the first pump of a dual system takes the hydraulic oil that is inside the tank hydraulic oil and sends it in the form of flow and pressure to the actuator hydraulic that is located at the top of the pedestal. In this way, the actuator hydraulic, lifts the load necessary to put a well into production.
  • the present invention corresponds to a hydraulic mechanical pumping unit with balancing that achieves artificial lifting of fluids by means of a system of counterweights incorporated into a pedestal.
  • the hydraulic mechanical pumping unit with balancing of the present invention comprises a design power unit compact, a pedestal, a hydraulic actuator and a balancing system.
  • the pumping unit of the present invention receives the power of a power unit hydraulic through a pressurized flow of hydraulic oil and generates a rising force on a hydraulic actuator by raising a mechanism of artificial lifting and the hydrostatic column generated by the fluid itself to lift
  • the balancing corresponds to a system of pulleys and counterweights that exert a force opposite to the intrinsic force generated by a mechanism of Artificial lift.
  • the force exerted by the balancing system equivalent to 90% of the force generated by the lifting mechanism of the fluid.
  • the balancing system connects in parallel and exerts a parallel force equivalent to the intrinsic force of the mechanism with which the fluid.
  • the present invention simplifies the design and optimizes the operation of the units described in the state of the technique, when using a compact power unit and a balancing system which reduces operating costs, energy consumption and volumetric and increases the productivity.
  • FIG. 1 Schematic configuration of the mechanical pumping hydraulic unit with balancing of the invention.
  • FIG. 1 Generic configuration of the invention where the arrangement of the hydraulic power unit (1) connected to a pedestal (2) and the hydraulic actuator (3) is illustrated.
  • FIG. 1 Detail of the arrangement of the mobile pulleys at the top of the pedestal.
  • FIG. 1 Front representation of the pedestal and hydraulic actuator with anchor detail.
  • the hydraulic mechanical pumping unit with balancing comprises a unit power hydraulics (1), a pedestal (2), a sub-base for the pedestal (2.1), on which the pedestal (2), a hydraulic actuator (3) and a balancing system, consisting of a balancing system (4).
  • the balancing system (4) which comprises two mobile pulleys (4.1) through which a cable (4.2) that connects the weight moves generated by an artificial lifting mechanism with counterweights (4.3), by means of a fixed pulley (4.4) installed in the counterweights (4.3).
  • a hydraulic actuator (3) is installed above the pedestal, which connects to the weight generated by an artificial lifting mechanism. This form are the hydraulic actuator (3) and the two pulley system and counterweights (4) exerting a parallel force that manages to lift the weight generated by an artificial lifting mechanism.
  • the hydraulic mechanical pumping unit with balancing of the present invention comprises a hydraulic power unit (1), a pedestal (2), a hydraulic actuator (3) and a balancing system, composed of a system of pulleys and counterweights (4). Together the unit of power (1), the pedestal (2), the hydraulic actuator (3) and the system balancing (4) raise and lower the weight generated by a lifting mechanism artificial installed at the bottom of the well.
  • the unit of the present invention also has a sub-base for the pedestal (2.1), on which the pedestal (2) is mounted.
  • a hydraulic actuator is installed above the pedestal (3), which is connected to the weight generated by a lifting mechanism artificial. In this way there are the hydraulic actuator (3) and the system of pulleys and counterweights (4) exerting a parallel force that achieves lift the weight generated by an artificial lifting mechanism.
  • the unit of the present invention it comprises a sub-base for the pedestal (2.1), on which the pedestal is mounted (2), east pedestal that incorporates a balancing system at the top (4) composed of at least two mobile pulleys (4.1) installed in the part top of the pedestal, a steel cable that travels through these pulleys, a anchor (5), a fixed pulley (4.4), a weight-bearing structure (4.6) and a certain number of weights (4.7).
  • the anchor (5) is installed in a mechanism of artificial lifting and connects directly to both ends of the cable (4.2). This cable (4.2) passes over the pulleys and descends to the fixed pulley (4.4), supporting said fixed pulley (4.4).
  • Weight structure It is attached to the fixed pulley and has two alignment bushings (4.5), one at each side. Through these hubs, there are some axes that allow you to travel to the counterweight parallel to the pedestal, preventing in this way that external forces move the counterweight and remove it from its alignment.
  • the pumping unit with present balancing Invention works as follows: Initially the weight generated by a artificial lifting mechanism is in the lower position of the pedestal (2), a lower limit switch sensor (2.2) detects this position and sends an electrical signal to the hydraulic power unit (1), so This unit sends the hydraulic oil to the actuator (3) in order to lift the weight generated by an artificial lifting mechanism. System weights and counterweights exert a force parallel to the actuator force hydraulic and thus the weight generated by an artificial lifting mechanism it rises to the upper position of the pedestal (3).
  • an upper limit switch (2.3) detects said position and sends an electrical signal to the hydraulic power unit (1), so that it stops sending hydraulic oil to the actuator and allows the hydraulic oil return inside the hydraulic actuator (3) to the hydraulic oil tank of the hydraulic power unit (1). From this way, the weight generated by an artificial lifting mechanism begins to descend in a controlled way because the balancing exerts a counterbalancing force to said movement. Once the weight generated by a artificial lifting mechanism return back to the lower position the lower limit switch sensor (2.3) is activated again from the pedestal (2) which starts a new cycle.
  • Example 1 Construction of the hydraulic unit of mechanical pumping with balancing of the invention.
  • the pedestal was welded to the elements cut with plasma that make up the structure of the power unit and this It was drilled for installation of sensors and valves.
  • the hood was machined the flexible coupling between the pump and the motor and the motor shaft with the in order to extend it and be able to mount the fan at its rear end. Too Radiator components and filtration elements were assembled.
  • the electrical systems were mounted and connected, including cables, hydraulic system and hoses.
  • the stems and the bushings in order to assemble them on the pedestal.
  • the anchor was also machined and a guava was cut graffiti on its tips to an optimal measure to perform the balancing and guarantee the travel of the hydraulic actuator.
  • Example 2 Figured unit operation Mechanical pumping hydraulic with balancing of the invention.
  • the operation calculations of the hydraulic unit mechanical pumping with balancing of the present invention demonstrate an improvement in terms of fluid extraction requirements.
  • the assembly of the mechanical pumping hydraulic unit with balancing of the present invention it requires less power to extract a fluid because the force necessary is based on the system of weights and counterweights.
  • the Counterweights help lift 90% of the load generated by a mechanism artificial lifting and electric motor generates the flow and pressure necessary to lift the load generated by the hydrostatic column of the fluid to extract more than 10% of the load generated by the system fluid lift.
  • the engines and the required power are less than other machines that use engine power 100% of the load generated.
  • the expected efficiency of the hydraulic unit of mechanical pumping with balancing of the present invention is between 40% to 70% for energy savings.
  • the application of the present invention in field has a volumetric efficiency between 10 and 70%.
  • the installation of the present invention supposes an increase in the production when using routes longer and because the elongation percentage of the system artificial lifting decreases in relation to travel.
  • the system Hydraulic allows up and down with different speeds. In turn, for him design of the unit of the present invention cycles are increased by minute.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Jib Cranes (AREA)
  • Reciprocating Pumps (AREA)
  • Motor Power Transmission Devices (AREA)
  • Fluid-Pressure Circuits (AREA)
PCT/IB2013/051873 2012-03-13 2013-03-09 Unité hydraulique de pompage mécanique à roulis Ceased WO2013136244A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
MX2014011021A MX2014011021A (es) 2012-03-13 2013-03-09 Unidad hidraulica de bombeo mecanico con balanceo.
CN201380023434.7A CN104641071A (zh) 2012-03-13 2013-03-09 具有摇动效应的机械液压泵送单元
CA2873344A CA2873344A1 (fr) 2012-03-13 2013-03-09 Unite hydraulique de pompage mecanique a roulis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CO12043635A CO6750186A1 (es) 2012-03-13 2012-03-13 Unidad hidraulica de bombeo mecánico con balanceo
CO12-043635 2012-03-13

Publications (2)

Publication Number Publication Date
WO2013136244A2 true WO2013136244A2 (fr) 2013-09-19
WO2013136244A3 WO2013136244A3 (fr) 2013-11-21

Family

ID=49161909

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/051873 Ceased WO2013136244A2 (fr) 2012-03-13 2013-03-09 Unité hydraulique de pompage mécanique à roulis

Country Status (5)

Country Link
CN (1) CN104641071A (fr)
CA (1) CA2873344A1 (fr)
CO (1) CO6750186A1 (fr)
MX (1) MX2014011021A (fr)
WO (1) WO2013136244A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11299941B2 (en) 2019-07-01 2022-04-12 Vertx Artificial Lift Inc. Pump jack with counterbalance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187680A (en) * 1978-06-12 1980-02-12 Sanford George A Oil well pump drive
US4712374A (en) * 1981-08-10 1987-12-15 Stewart Wayne A Hydraulic pump jack
US4761120A (en) * 1986-06-23 1988-08-02 Mayer James R Well pumping unit and control system
US5018350A (en) * 1990-05-09 1991-05-28 Bender E A Long stroke deep well pumping unit
CN2656630Y (zh) * 2003-11-21 2004-11-17 浙江大学 采用蓄能器配重的变频液压抽油机
CN200943474Y (zh) * 2006-09-04 2007-09-05 王德章 一种滑轮组传动式抽油机
CN101307685A (zh) * 2008-07-09 2008-11-19 丁长良 长冲程液压抽油机

Also Published As

Publication number Publication date
CN104641071A (zh) 2015-05-20
CA2873344A1 (fr) 2013-09-19
CO6750186A1 (es) 2013-09-16
MX2014011021A (es) 2015-05-07
WO2013136244A3 (fr) 2013-11-21

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