WO2008085081A1 - Appareil de pompage de puits à entraînement électrique - Google Patents

Appareil de pompage de puits à entraînement électrique Download PDF

Info

Publication number
WO2008085081A1
WO2008085081A1 PCT/RU2007/000325 RU2007000325W WO2008085081A1 WO 2008085081 A1 WO2008085081 A1 WO 2008085081A1 RU 2007000325 W RU2007000325 W RU 2007000325W WO 2008085081 A1 WO2008085081 A1 WO 2008085081A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
pump
screw pump
hydraulic
oil
Prior art date
Application number
PCT/RU2007/000325
Other languages
English (en)
Russian (ru)
Inventor
Anatoly Konstantinovich Ponomarev
Oleg Nikolaevich Bondarenko
Evegeny Vasilievich Ryzhov
Original Assignee
Ponomarev Anatoly Konstantinov
Oleg Nikolaevich Bondarenko
Evegeny Vasilievich Ryzhov
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 Ponomarev Anatoly Konstantinov, Oleg Nikolaevich Bondarenko, Evegeny Vasilievich Ryzhov filed Critical Ponomarev Anatoly Konstantinov
Publication of WO2008085081A1 publication Critical patent/WO2008085081A1/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

Definitions

  • the invention relates to the field of engineering, in particular to downhole pumping units for the production of viscous oil.
  • a well-known borehole electrohydraulic drive unit comprising a submersible motor, an oil pump with a safety valve, an oil tank with a bypass check valve and fine filters, an oil expansion compensator, a piston pump and a hydraulic motor, the latter being connected via a pipeline to the oil pump, and the working body of the hydraulic motor are connected through a protector with a piston or piston of a piston pump, (see patent RU Ns 2166668, class F 04 B 47/08, 05/10/2001).
  • a disadvantage of the known construction is that during the production of viscous oil, the ball shut-off element may hang in the ball suction valve, which leads to a shutdown of the oil supply.
  • the closest to the utility model in terms of technical essence and the achieved result is a borehole electric hydraulic pump unit containing a submersible electric motor, an oil pump with a safety valve, an oil tank with an oil fine filter, a volume expansion compensator, a pump and a gerotor type hydraulic motor, the latter being connected via a pipeline to axial piston oil pump, and a screw pump connected through a shaft is used as a pump hydraulic protection with a hydraulic motor, while the ratio of the volumetric performance of the oil pump to the volumetric characteristic of the hydraulic motor determines the gear ratio of the number of revolutions of the electric motor to the number of revolutions of the hydraulic motor, (see utility model patent RU Ks 51128, class F 04 ⁇ 47/08, 08/01/2005)
  • a disadvantage of the known design is that due to the misalignment of the shafts of the hydraulic protection and the screw pump, radial runouts occur during operation, which leads to a decrease in the service life of the borehole electro-hydraulic pump unit.
  • the existing design does not allow the use of hydraulic protection to compensate for axial loads that occur during the operation of the screw pump, which also leads to a decrease in the service life of the screw pump and, as a consequence, the entire borehole electrohydraulic pump unit
  • the problem to which the present invention is directed is the compensation of axial and radial loads that occur during operation of a borehole electrohydraulic pump unit.
  • the technical result achieved by the implementation of the invention is to increase the reliability and service life and increase the wear resistance of the rubbing structural elements of the borehole electro-hydraulic pump unit during the production of viscous oil.
  • the borehole electric hydraulic pump unit contains a submersible electric motor, an oil pump with a safety valve, an oil tank with an oil fine filter, a volume expansion compensator oils, a pump and a hydraulic motor of a gerotor type, the latter being connected via a pipeline to an axial piston oil pump, and a screw pump is used as a pump connected through a hydraulic protection shaft to a hydraulic motor, while the ratio of the volumetric capacity of the oil pump to the volumetric characteristic of the hydraulic motor determines the gear ratio of the rotational speed of the electric motor to the number of revolutions of the hydraulic motor, the screw pump housing and the hydraulic protection are interconnected by a perforated shell, between the shaft ohm of a screw pump and a hydraulic protection shaft, an intermediate shaft is installed inside the shell connected to the latter by means of hinge mechanisms, and the hinge mechanism located on the hydraulic protection side is made in the form of a head mounted on the end of the hydraulic protection shaft with a spherical surface covered by a clip mounted on the end
  • An electrolytic chrome diamond-cluster coating can be applied to the working surfaces of the shaft of the screw pump, the cage of the intermediate shaft and the heads of the shafts of the hydraulic protection and the screw pump, or all friction surfaces are protected by a ceramic-metal coating in the form of a liquid crystal mineral composition.
  • the stator of a screw pump can be made in the form of a shell of a screw shape, the outer surface of which repeats the inner surface of the stator of a screw pump, and the elastomer of the same thickness is applied by vulcanization.
  • the application of a ceramic-metal coating on the surface of the hydraulic drive parts and the friction surface of the thrust ball bearing increases the service life
  • the application of an electrolytic chrome diamond-cluster coating on the shaft surface of a screw pump, as well as on the working surfaces of the heads and clips of the intermediate shaft increases their corrosion resistance and reduces their abrasive wear.
  • the stator is made in the form of a shell of a screw shape, repeating its inner surface, onto which an elastomer of the same thickness is applied by vulcanization.
  • FIG.l schematically shows a borehole electrohydraulic pumping unit.
  • Figure 2 presents a longitudinal section of a borehole electro-hydraulic pumping unit at the installation site of the intermediate shaft.
  • the borehole electrohydraulic drive unit includes a submersible motor 1 connected through a shaft 2 of the tread 3 to a shaft of an axial piston oil pump 4, equipped with a safety valve 5, an oil tank 6 with a filter 7 for fine oil purification, a compensator for the volume expansion of oil (not shown in drawing), hydraulic protection 8 and pipeline 9, connecting the discharge hole of the oil pump 4 with the inlet of the hydraulic motor 10 of the gerotor type.
  • the shaft of the hydraulic engine 10 is connected through the shaft 11 of the hydraulic protection 8 and the intermediate shaft 12 with the shaft 13 of the screw pump 14 for oil production.
  • the ratio of the volumetric performance of the oil pump 4 to the volumetric characteristic of the hydraulic motor 10 determines the gear ratio of the number of revolutions of the electric motor 1 to the number of revolutions of the hydraulic motor 10.
  • the housings 15, 16, respectively, of the screw pump 14 and the hydraulic protection 8 are interconnected by a perforated shell 17, which is the input (receiving) filter of the screw pump 14.
  • the intermediate shaft 12, installed inside the shell 17, is connected to the shafts 13 and And through the hinge mechanisms 18 and 19.
  • the swivel mechanism 18, located on the side of the hydroprotection 8 is made in the form of a head 20 mounted on the end of the shaft 11 of the hydroprotection 8 with a spherical surface, covered by a clip 21 with an internal spherical mounted on the end of the intermediate shaft 12 surface, and in the spherical surface of the head 20 there are nests for half balls 22 installed in them, which protruding from the nests are located in grooves made on the inner spherical surface of the casing 21.
  • the hinge mechanism 19 from the side of the screw pump 14 is made in the form mounted on an intermediate shaft 12 holders 23 with an inner cylindrical surface and grooves made on it, in which the balls 24 are mounted halfway, the part protruding from the grooves in the grooves made in the head 25, tanovlenii at the end of the pump shaft 13 of the screw 14.
  • the hinge the mechanism 19 on the side of the screw pump 14 is made with a sealing ring 26 of elastic material located between the cage 23 and the head 25 of the shaft 13 of the screw pump 14, and the hinge mechanism 18 on the side of the hydraulic protection 8 is hermetically sealed relative to the shell 17 by means of a sealing ring 27 covering the outer spherical the surface of the cage 21 of the intermediate shaft 12 and pressed against it by a spring 28 located in the supporting sleeve 29, hermetically located in the annular groove made in the casing 17, and covering aruzhnoy side of the sealing ring 27 of elastic material.
  • the end surfaces of the ends of the shaft 11 of the hydraulic protection 8 and the head 25 of the shaft 13 of the screw pump 14 are made with a convex spherical surface interacting with a concave spherical surface made on the end surface of the ends of the intermediate shaft 12.
  • an electrolytic chrome diamond-cluster coating is applied or all friction surfaces can be protected by a metal-ceramic coating in the form of a liquid crystal mineral composition.
  • the stator 30 of the screw pump 14 can be made in the form of a screw-shaped shell, the outer surface of which repeats the inner surface of the stator 30 of the screw pump 14, and the elastomer of the same thickness is applied by vulcanization.
  • a thrust ball bearing 31 is installed on the shaft 11 of the hydraulic protection 8, which receives the axial load of the shaft 13 of the screw pump 14.
  • the oil pump 4 After turning on the electric motor 1, the oil pump 4 delivers the oil through the pipeline 9 to the inlet of the hydraulic motor 10, the shaft of which rotates the shaft 13 of the screw pump I through the hydraulic protection shaft 11 and the intermediate shaft 12. The oil from the borehole goes through the shell 17 to the screw pump 14 and then last injected into the tubing string 32.
  • the present invention can be used in the oil industry, mainly in the production of viscous oil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

Un appareil de pompage comprend un moteur électrique immergé (1), une pompe à huile axiale à pistons (4), un compensateur de dilatation volumique de l'huile, une pompe à vis (14) et un moteur hydraulique (10) de type à rotor denté. Le rapport de productivité volumique de la pompe à huile (4) à la caractéristique volumique du moteur hydraulique (10) détermine le rapport de transmission du nombre de tours du moteur électrique par rapport au nombre de tours du moteur hydraulique. Les boîtiers de la pompe à vis (15) et de la protection hydraulique (16) sont raccordés par une virole perforée (17). Entre l'arbre de la pompe à vis et l'arbre de la protection hydraulique on a monté un arbre intermédiaire (12). Le mécanisme articulé (18) disposé du côté de la protection hydraulique (8) se présente comme une tête à surface sphérique (20) montée à l'extrémité de l'arbre de la protection hydraulique (8). Dans la surface de tête sphérique on a réalisé des logements destinées à accueillir des billes (22) qui y sont noyées à moitié. Le mécanisme articulé (19) du côté de la pompe à vis se présente comme une cage (23) montée sur l'arbre intermédiaire (12) et comportant une surface interne cylindrique avec des rainures dans lesquelles des billes sont noyées à moitié (24). Le mécanisme articulé (19) du côté de la pompe à vis (14) est réalisé avec une bague d'étanchéité (26). Les surfaces d'extrémité du bout de l'arbre (11) de protection hydraulique (8) et de la tâte (25) de l'arbre (13) de la pompe à vis possèdent une surface sphérique convexe. L'invention permet d'améliorer la fiabilité et la durée de vie active de la pompe ainsi que la résistance à l'usure de ses éléments en frottement.
PCT/RU2007/000325 2007-01-10 2007-06-15 Appareil de pompage de puits à entraînement électrique WO2008085081A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2007100173 2007-01-10
RU2007100173 2007-01-10

Publications (1)

Publication Number Publication Date
WO2008085081A1 true WO2008085081A1 (fr) 2008-07-17

Family

ID=39608872

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2007/000325 WO2008085081A1 (fr) 2007-01-10 2007-06-15 Appareil de pompage de puits à entraînement électrique

Country Status (1)

Country Link
WO (1) WO2008085081A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907086A (zh) * 2010-08-13 2010-12-08 陈阳 旋管往复抽油泵
CN102374175A (zh) * 2010-08-20 2012-03-14 石增辉 一种单杆多头横切螺旋潜油泵
CN101709707B (zh) * 2009-12-30 2012-09-26 扬州大学 滚珠逆螺旋驱动式往复抽油螺杆泵
CN103244395A (zh) * 2012-02-09 2013-08-14 中国石油集团渤海石油装备制造有限公司 三次采油抽油泵

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260700A1 (en) * 1974-02-11 1975-09-05 Vysoke Uceni Tech Brne Submersible pump for ore extraction - has pressure vessel containing oil to prevent corrosion
RU2116512C1 (ru) * 1997-04-24 1998-07-27 Товарищество с ограниченной ответственностью Научно-внедренческий центр "Развитие" Скважинный электрогидроприводной насосный агрегат
RU2145679C1 (ru) * 1999-02-12 2000-02-20 Товарищество с ограниченной ответственностью Институт науки и культуры "Магистр" Насосный агрегат
RU2209852C1 (ru) * 2002-02-18 2003-08-10 Закрытое акционерное общество "Научно-производственное объединение "Руспромремонт" Способ обработки поверхностей металлических деталей
RU37159U1 (ru) * 2003-10-23 2004-04-10 "Центр разработки нефтедобывающего оборудования" Погружной одновинтовой насос для добычи нефти
RU51128U1 (ru) * 2005-08-05 2006-01-27 Общество с ограниченной ответственностью "Лифт Ойл" Скважинный электрогидроприводной насосный агрегат

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2260700A1 (en) * 1974-02-11 1975-09-05 Vysoke Uceni Tech Brne Submersible pump for ore extraction - has pressure vessel containing oil to prevent corrosion
RU2116512C1 (ru) * 1997-04-24 1998-07-27 Товарищество с ограниченной ответственностью Научно-внедренческий центр "Развитие" Скважинный электрогидроприводной насосный агрегат
RU2145679C1 (ru) * 1999-02-12 2000-02-20 Товарищество с ограниченной ответственностью Институт науки и культуры "Магистр" Насосный агрегат
RU2209852C1 (ru) * 2002-02-18 2003-08-10 Закрытое акционерное общество "Научно-производственное объединение "Руспромремонт" Способ обработки поверхностей металлических деталей
RU37159U1 (ru) * 2003-10-23 2004-04-10 "Центр разработки нефтедобывающего оборудования" Погружной одновинтовой насос для добычи нефти
RU51128U1 (ru) * 2005-08-05 2006-01-27 Общество с ограниченной ответственностью "Лифт Ойл" Скважинный электрогидроприводной насосный агрегат

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101709707B (zh) * 2009-12-30 2012-09-26 扬州大学 滚珠逆螺旋驱动式往复抽油螺杆泵
CN101907086A (zh) * 2010-08-13 2010-12-08 陈阳 旋管往复抽油泵
CN102374175A (zh) * 2010-08-20 2012-03-14 石增辉 一种单杆多头横切螺旋潜油泵
CN103244395A (zh) * 2012-02-09 2013-08-14 中国石油集团渤海石油装备制造有限公司 三次采油抽油泵

Similar Documents

Publication Publication Date Title
US11713757B2 (en) Pump integrated with two independently driven prime movers
US9051780B2 (en) Progressive cavity hydraulic machine
EP3134648B1 (fr) Système de distribution de fluide doté d'un arbre ayant un passage traversant
CA2751727C (fr) Pompe
US20100239446A1 (en) progressing cavity pump with several pump sections
CA2831980C (fr) Rotors legers et flexibles pour dispositifs a deplacement positif
US11261666B2 (en) Hydraulic tools, drilling systems including hydraulic tools, and methods of using hydraulic tools
CA3015763C (fr) Moteur electrique et pompes rotatives a engrenages entrainees par des tiges
RU2283442C1 (ru) Статор винтовой героторной гидромашины
WO2008085081A1 (fr) Appareil de pompage de puits à entraînement électrique
NO329713B1 (no) Eksenterskruepumpe med en indre og en ytre rotor
CA2632752A1 (fr) Presse-etoupe perfectionne pour tete de puits de petrole incorporant un mecanisme d'entrainement de pompe
RU63000U1 (ru) Скважинный электрогидроприводной насосный агрегат
MX2014001666A (es) Conjunto de cojinetes para bomba de turbina vertical.
CA2719121C (fr) Machine hydraulique a cavite progressive
RU51128U1 (ru) Скважинный электрогидроприводной насосный агрегат
RU2136971C1 (ru) Погружной центробежный насосный агрегат
RU2295023C1 (ru) Турбовинтовой забойный двигатель
RU2283416C1 (ru) Статор винтовой героторной гидромашины
RU212314U1 (ru) Шестеренный насос
RU2455447C1 (ru) Двухвальный гидравлический забойный двигатель
RU38859U1 (ru) Погружной маслозаполненный электродвигатель с гидродинамической смазкой пяты
RU2365726C1 (ru) Винтовой забойный двигатель
RU2169861C2 (ru) Винтовой насос
RU93898U1 (ru) Скважинный электрогидроприводной винтовой насосный агрегат

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07794052

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07794052

Country of ref document: EP

Kind code of ref document: A1