WO2007040421A1 - Installation de pompage de fond de puits a entrainement electrique - Google Patents

Installation de pompage de fond de puits a entrainement electrique Download PDF

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Publication number
WO2007040421A1
WO2007040421A1 PCT/RU2006/000393 RU2006000393W WO2007040421A1 WO 2007040421 A1 WO2007040421 A1 WO 2007040421A1 RU 2006000393 W RU2006000393 W RU 2006000393W WO 2007040421 A1 WO2007040421 A1 WO 2007040421A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
pump
cavity
plunger
cylinder
Prior art date
Application number
PCT/RU2006/000393
Other languages
English (en)
Russian (ru)
Inventor
Anatoly Konstantinovich Ponomarev
Aleksandr Nikolaevich Antonnikov
Original Assignee
Bondarenko, Oleg Nikolaevich
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 Bondarenko, Oleg Nikolaevich filed Critical Bondarenko, Oleg Nikolaevich
Priority to US12/088,693 priority Critical patent/US20090041596A1/en
Publication of WO2007040421A1 publication Critical patent/WO2007040421A1/fr

Links

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
    • F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
    • F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid
    • 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
    • E21B43/128—Adaptation of pump systems with down-hole electric drives

Definitions

  • the invention relates to the field of engineering, in particular to downhole pumping units for oil production.
  • a well-known electric borehole diaphragm pump for oil production (see patent RU ⁇ 2062906, class F 04 ⁇ 47/06, 06/27/1996).
  • a disadvantage of the known design is the low efficiency, as well as the low resource of a flat elastic diaphragm due to the high stroke frequency, low pressure characteristic of the pump unit, the impossibility of oil production with a low level of water cut due to the low capacity of the suction valves.
  • the closest technical solution is a borehole electrohydraulic drive pump unit containing a submersible electric motor, a drive oil pump, a plunger working pump with suction and discharge valves, an oil tank with fine oil filters, a volume expansion compensator for oil, and a hydraulic motor, the over- and under-piston cavities of which are connected through a distributor to the suction and discharge sides of the oil pump, with a safety valve installed on the latter and a hydraulic piston vigatelya connected with the plunger of the pump (see. Patent RU N ° 2166668, cl. F 04 B 47/08, 10.05.2001).
  • the disadvantage of this design is the wear of the seals of the plunger of the working pump, leading to a decrease in performance and pressure characteristics of the pump unit. Disclosure of invention
  • the problem to which the invention is directed is to increase the resource of the working pump, increase the pressure characteristics and performance of the pump unit.
  • the technical result that is achieved as a result of solving the above problem is to increase the efficiency and reliability of the borehole electro-hydraulic pump unit.
  • the borehole electrohydraulic drive pump unit contains a submersible electric motor, a drive oil pump, a plunger working pump with suction and discharge valves, an oil tank with fine oil filters, a volume expansion compensator for oil and a hydraulic motor, and the piston cavity of the cylinder of which is connected through the distributor to the suction and discharge sides of the oil pump, and the latter has a safety lock It has a valve, and the hydraulic motor piston is connected to the plunger of the working pump, while the electric motor is equipped with a protector through the shaft of which the electric motor shaft is kinematically connected to the shaft of the drive oil pump, an axial piston pump is installed as the drive oil pump, and the cylinder of the plunger working pump is equipped with a sealed cylindrical diaphragm made of elastic material placed in the cylinder with the formation of a cavity filled with oil, and the plunger of the working pump is installed with the possibility of return ostupatelnogo movement within the cavity, the plunger
  • the unit can be equipped with additional suction valves, which can be coaxially placed in the cylinder wall of the plunger working pump and expansion joint expansion oil in one or more rows.
  • additional suction valves which can be coaxially placed in the cylinder wall of the plunger working pump and expansion joint expansion oil in one or more rows.
  • the implementation of the expansion joint expansion oil with suction and discharge valves and connecting the latter to the cavity between the discharge valve of the working pump and pressure valves allows you to double the productivity of the pump unit by supplying oil on the reverse piston of the hydraulic motor, to eliminate wear of the seal of the plunger of the working pump, since the latter works in an oil environment and does not contact directly with the pumped medium, and increase the pressure characteristic of the pump unit.
  • a cylindrical diaphragm of elastic material for example rubber, reinforced with fiberglass or Kevlar is used, which improves the strength of the membrane, and the working body of the plunger working pump in the form of a sealed oil-filled cavity bounded by a cylindrical diaphragm of elastic material, inside which the reciprocating movement of the plunger allows to reduce the cyclic load on the diaphragm (compared with the above diaphragm pump) and thereby increase the reliability of the plunger working pump.
  • the advantage of the proposed technical solution is that it can be widely varied by changing the diameter of the plunger of the working pump pressure characteristic and performance of the pump unit.
  • the implementation of the unit with additional suction valves allows to increase the throughput of the unit and make the design of the unit more compact, which is especially important for installations that are operated in wells.
  • Figure l presents a longitudinal section of a borehole electro-hydraulic pumping unit.
  • Figure 2 presents an embodiment of a suction valve with additional suction valves for a borehole electro-hydraulic pump unit using the example of a cylinder of a plunger working pump with suction valves.
  • the borehole electric hydraulic pump unit contains a submersible motor 1, a drive oil pump 2, a plunger working pump 4 with a suction 5 and a discharge 6 valves, an oil tank 7 with filters 8 for fine oil purification, a compensator 9 for the volume expansion of oil and a hydraulic motor 10, above (11) and piston 12 cavity 13 of the cylinder which is connected through a distributor 14 to the suction 15 and discharge 16 sides of the oil pump 2, the safety valve 3 being installed on the latter, and the piston 17 of the hydraulic motor 10 is connected to the plunger 18 of the working pump 4.
  • the electric motor 1 is provided with a tread 19, through the shaft of which the shaft of the electric motor 1 is kinematically connected with the shaft of the drive oil pump 2.
  • An axial piston pump is installed as a drive oil pump 2.
  • the cylinder 20 of the plunger working pump 4 is provided with a sealed cylindrical diaphragm 21 made of elastic material placed in the cylinder 20 to form an oil-filled cavity 22, and the plunger 18 of the working pump 4 is installed with the possibility of reciprocating movement inside this cavity 22.
  • Above the discharge valve 6 of the plunger working the pump 4 is installed with the formation of the cavity 23 pressure valve 31.
  • the compensator 9 for the volume expansion of the oil is made in the form of a cylinder 24, inside of which is placed an elastic cylindrical I diaphragm 25 with the formation of an internal sealed cavity 26 in communication with the oil tank 7, and an annular cavity 27 surrounding the elastic diaphragm 25, and the cylinder 24 of the expansion joint 9 of the oil expansion is equipped with a suction 28 and pressure 29 valves, while the suction valve 28 is from the input side it is in communication with the space surrounding the pumping unit, and the discharge valve 29 from the outlet side is communicated through a pipe 30 with a cavity 23 between the discharge valve 6 of the plunger working pump 4 and the pressure valve m elektrogidroprivodnoy 31.
  • the downhole pump assembly 32 is mounted on the column of tubing (HKT).
  • the unit can be made with additional suction valves 5 and 28, and the suction valves 5 and 28 can be coaxially placed in the wall of the cylinders 20 and 24, respectively, of the plunger working pump 4 and the expansion joint 9 of the oil expansion in one or more rows.
  • the distributor 14 is connected through a pipe 33 and a channel 34, respectively, with the supra-piston cavity 11 and the sub-piston cavity 12 of the cylinder 13 of the hydraulic engine 10.
  • the directional mechanical switch of the distributor 14 consists of a pusher 35 and a latch 36 with a spring 37.
  • Oil leaks through seals from the cavity 22 are returned to the oil tank 7 through a pipe 38.
  • a string of 32 BKT pipes with a pump unit is lowered into a casing installed in the well.
  • the submersible motor is powered by a cable 39, which is attached to the string of 32 HKT pipes with clamps (not shown).
  • Downhole electrohydraulic pump unit operates as follows.
  • the cylinder 20 of the plunger working pump 4 is filled with liquid through the suction valve or the suction valves 5.
  • the switch of the distributor 14 is activated and the return stroke is carried out and the operation cycle described above is repeated.
  • Switching of the distributor 14 during the movement of the piston 17 is due to the impact on the spool of the distributor pusher 35 in the extreme positions of the piston.
  • the “appearance” of the spool valve in the middle position is eliminated due to the presence of a latch 36 with a spring 37, which compresses, accumulates a certain potential energy and, having overcome the resistance of the latch, moves the pusher 35 and, accordingly, the spool to one of the extreme positions.
  • the mechanical switch may have other designs, in particular, and in combination with a hydraulic distributor commanding the main distributor.
  • the current protection level at the control station for the submersible motor 1 is set, which corresponds to the maximum permissible level according to the depth of descent of the pump unit and power outage.
  • the pump unit is equipped with an electric motor with speed control and their reduction with a decrease in the dynamic level and, accordingly, a decrease in the supply of the pump unit at the command of the annular pressure sensor installed in the electric motor.
  • the present invention can be used in the oil industry and other industries where liquid is produced from wells.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une installation de pompage de fond de puits à entraînement électrique destinée à l'extraction de pétrole. L'installation comprend un moteur électrique immergé (1), une pompe à huile entraînée (2), une pompe à plongeur de travail (4), un réservoir d'huile (7) avec des filtres (8) de filtrage fin de l'huile (9), un compensateur (9) de dilatation volumique de l'huile et un moteur hydraulique (10). La partie amont (11) et la partie aval (12) du volume de cylindre (13) du moteur hydraulique sont raccordées via un distributeur (14) à la partie d'aspiration (15) et la partie d'injection (16) de la pompe à huile. Le piston (17) du moteur hydraulique est relié avec le plongeur (18) de la pompe de travail. Le moteur électrique est muni d'une protection (19) via l'arbre de laquelle il est relié à l'arbre de la pompe à huile entraînée. Le cylindre (20) de la pompe de travail est muni d'un diaphragme cylindrique hermétique (21) fait d'un matériau élastique, de manière à former une cavité remplie d'huile (22). Le plongeur (18) de la pompe de travail est monté de manière à pouvoir effectuer des mouvements en va-et-vient à l'intérieur de la cavité (22). Au-dessus de la soupape d'injection (6) de la pompe de travail on a monté, de manière à former une cavité (23), une soupape d'injection (31). Le compensateur (9) se présente comme un cylindre (24) à l'intérieur duquel est monté un diaphragme cylindrique élastique (25) de manière à former une cavité interne hermétique (26) communiquant avec le réservoir d'huile (7) et la cavité annulaire (27). On parvient à augmenter ainsi le rendement et la fiabilité de l'installation.
PCT/RU2006/000393 2005-10-03 2006-07-24 Installation de pompage de fond de puits a entrainement electrique WO2007040421A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/088,693 US20090041596A1 (en) 2005-10-03 2006-07-24 Downhole Electric Driven Pump Unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2005130527 2005-10-03
RU2005130527 2005-10-03

Publications (1)

Publication Number Publication Date
WO2007040421A1 true WO2007040421A1 (fr) 2007-04-12

Family

ID=37906389

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2006/000393 WO2007040421A1 (fr) 2005-10-03 2006-07-24 Installation de pompage de fond de puits a entrainement electrique

Country Status (2)

Country Link
US (1) US20090041596A1 (fr)
WO (1) WO2007040421A1 (fr)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN102536758A (zh) * 2010-12-27 2012-07-04 中国石油天然气股份有限公司 低沉没度煤层气排采专用管式泵
RU2504691C2 (ru) * 2010-12-01 2014-01-20 Николай Николаевич Зубов Установка погружная электрогидроприводная
US8636898B2 (en) 2010-04-30 2014-01-28 Antonio Perez Site drainer
RU2613150C1 (ru) * 2016-01-25 2017-03-15 Сергей Николаевич Чистяков Насосная установка с электрогидравлическим приводом
US9605688B2 (en) 2010-04-30 2017-03-28 Site Drainer, Llc Site drainer
USD793454S1 (en) 2015-11-04 2017-08-01 Antonio Perez Pump cover
CN107191160A (zh) * 2017-05-28 2017-09-22 上海飞舟博源石油装备技术有限公司 双柱塞潜油隔膜泵系统及其接力举升方法
RU2649158C2 (ru) * 2016-08-11 2018-03-30 Николай Федорович Виеру Скважинная электрогидроприводная насосная установка
RU198327U1 (ru) * 2020-01-24 2020-07-02 Сергей Михайлович Матвеенко Скважинный электрогидроприводной насосный агрегат
RU2813013C1 (ru) * 2023-05-12 2024-02-06 Общество с ограниченной ответственностью "Лантан-ГИРС" Гидроприводной погружной насосный агрегат

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CA2782370C (fr) 2009-12-23 2018-01-16 Bp Corporation North America Inc. Systeme de pompe a faible volume sans appareil de forage
CN101936284A (zh) * 2010-09-16 2011-01-05 中国石油化工股份有限公司 一种恒定反馈力抽稠油泵
US20150060055A1 (en) * 2013-08-27 2015-03-05 Randy C. Tolman Systems and Methods for Artificial Lift Via a Downhole Positive Displacement Pump
US20150275870A1 (en) * 2014-03-31 2015-10-01 General Electric Company Pumping system for a wellbore and methods of assembling the same
CA2888027A1 (fr) 2014-04-16 2015-10-16 Bp Corporation North America, Inc. Pompes alternatives pour systemes de deliquification et systemes de distribution de liquide servant a actionner les pompes alternatives
US20170184097A1 (en) 2015-12-29 2017-06-29 Ge Oil & Gas Esp, Inc. Linear Hydraulic Pump for Submersible Applications
CN106761578B (zh) * 2017-01-13 2023-02-28 西安石油大学 一种可调控液压式抽油机装置
CN108757412A (zh) * 2018-07-10 2018-11-06 王志鸿 一种具有高强度减震结构的抽油泵
CN110857620B (zh) * 2018-08-24 2021-07-02 中国石油天然气股份有限公司 泵下增液器
US11920579B2 (en) 2018-10-05 2024-03-05 Halliburton Energy Services, Inc. Compact high pressure, high life intensifier pump system
US11578710B2 (en) 2019-05-02 2023-02-14 Kerr Machine Co. Fracturing pump with in-line fluid end
US11441687B2 (en) 2019-05-14 2022-09-13 Halliburton Energy Services, Inc. Pump fluid end with positional indifference for maintenance
US11261863B2 (en) 2019-05-14 2022-03-01 Halliburton Energy Services, Inc. Flexible manifold for reciprocating pump
US11105327B2 (en) 2019-05-14 2021-08-31 Halliburton Energy Services, Inc. Valve assembly for a fluid end with limited access
US11965503B2 (en) 2019-05-14 2024-04-23 Halliburton Energy Services, Inc. Flexible manifold for reciprocating pump
US11231111B2 (en) 2019-05-14 2022-01-25 Halliburton Energy Services, Inc. Pump valve seat with supplemental retention
US10808846B1 (en) 2019-05-14 2020-10-20 Halliburton Energy Services, Inc. Pump plunger with wrench features
US11739748B2 (en) 2019-05-14 2023-08-29 Halliburton Energy Services, Inc. Pump fluid end with easy access suction valve
US11560888B2 (en) 2019-05-14 2023-01-24 Halliburton Energy Services, Inc. Easy change pump plunger
US10808851B1 (en) 2019-06-10 2020-10-20 Halliburton Energy Services, Inc. Multi-material frac valve poppet
US10941766B2 (en) 2019-06-10 2021-03-09 Halliburton Energy Sendees, Inc. Multi-layer coating for plunger and/or packing sleeve
US11280326B2 (en) 2019-06-10 2022-03-22 Halliburton Energy Services, Inc. Pump fluid end with suction valve closure assist
US10677380B1 (en) 2019-07-26 2020-06-09 Halliburton Energy Services, Inc. Fail safe suction hose for significantly moving suction port
US10989188B2 (en) 2019-07-26 2021-04-27 Halliburton Energy Services, Inc. Oil field pumps with reduced maintenance
US20240060502A1 (en) * 2022-08-16 2024-02-22 Baker Hughes Oilfield Operations Llc Seal configuration for high density lubrication oils

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US2948224A (en) * 1959-11-09 1960-08-09 Beryl A Bailey Hydraulic pump
US3849030A (en) * 1973-03-22 1974-11-19 Kobe Inc Fluid operated pump with opposed pistons and valve in middle
RU2116512C1 (ru) * 1997-04-24 1998-07-27 Товарищество с ограниченной ответственностью Научно-внедренческий центр "Развитие" Скважинный электрогидроприводной насосный агрегат
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636898B2 (en) 2010-04-30 2014-01-28 Antonio Perez Site drainer
US9605688B2 (en) 2010-04-30 2017-03-28 Site Drainer, Llc Site drainer
US10543439B2 (en) 2010-04-30 2020-01-28 Site Drainer, Llc Site drainer
RU2504691C2 (ru) * 2010-12-01 2014-01-20 Николай Николаевич Зубов Установка погружная электрогидроприводная
CN102536758A (zh) * 2010-12-27 2012-07-04 中国石油天然气股份有限公司 低沉没度煤层气排采专用管式泵
USD793454S1 (en) 2015-11-04 2017-08-01 Antonio Perez Pump cover
RU2613150C1 (ru) * 2016-01-25 2017-03-15 Сергей Николаевич Чистяков Насосная установка с электрогидравлическим приводом
RU2649158C2 (ru) * 2016-08-11 2018-03-30 Николай Федорович Виеру Скважинная электрогидроприводная насосная установка
CN107191160A (zh) * 2017-05-28 2017-09-22 上海飞舟博源石油装备技术有限公司 双柱塞潜油隔膜泵系统及其接力举升方法
CN107191160B (zh) * 2017-05-28 2023-05-02 上海飞舟博源石油装备股份有限公司 双柱塞潜油隔膜泵系统及其接力举升方法
RU198327U1 (ru) * 2020-01-24 2020-07-02 Сергей Михайлович Матвеенко Скважинный электрогидроприводной насосный агрегат
RU2813013C1 (ru) * 2023-05-12 2024-02-06 Общество с ограниченной ответственностью "Лантан-ГИРС" Гидроприводной погружной насосный агрегат

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