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WO2010098690A1 - Pompe à vis de puits de pétrole entraînée à partir de la tête de puits - Google Patents

Pompe à vis de puits de pétrole entraînée à partir de la tête de puits Download PDF

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Publication number
WO2010098690A1
WO2010098690A1 PCT/RU2009/000318 RU2009000318W WO2010098690A1 WO 2010098690 A1 WO2010098690 A1 WO 2010098690A1 RU 2009000318 W RU2009000318 W RU 2009000318W WO 2010098690 A1 WO2010098690 A1 WO 2010098690A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubing string
wellhead
oil
sub
well
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/RU2009/000318
Other languages
English (en)
Inventor
Atlas Misbakhovich Badretdinov
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2010098690A1 publication Critical patent/WO2010098690A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/70—Use of multiplicity of similar components; Modular construction

Definitions

  • This technical proposal pertains to oil and gas industry, namely, to screw pumps driving the tubing string from the wellhead, hence it can be used for lifting fluid from the wells.
  • This pump consists of a stator tied on the tubing string bearing a rotor tied on the liner, a sub, interacting with the end stop, and an anchor.
  • the liner end is fitted with a tip allowing for longitudinal motion upward against the sub inner side.
  • the stator is rigidly connected to the tubing string to be driven from the wellhead, and the sub is rigidly connected in alignment with anchor set against the walls of the well.
  • the liner is located below the rotor, and is fitted over the tip with the end stop made as a landing seat, rotor being secured in the axial and radial direction against the stator.
  • the disadvantageous feature of the pump is the fact that during the tubing string movement fluid friction against the walls of the tubing string increases forcing the screw pump to operate at high load especially while lifting high-viscosity or heavy oil reducing its life or making necessary to use more expensive pumps building higher pressure while lifting fluid.
  • Technical goal of the proposed model is to cheapen the design by using less-powered screw pumps for production of oil especially high- viscosity and heavy oil due to reduction of oil friction against the walls of tubing.
  • This purpose can be achieved by using oil-well screw pumps driving tubing string from the wellhead.
  • This pump consists of a stator rigidly connected to the tubing string to be driven from the wellhead, a rotor secured in the axial and radial direction against the stator and connected at the bottom to the liner making it possible to be set against the walls of the well using the anchor.
  • the distinguishing feature of this unit is location of a screw conveyor on the inner side of the tubing string having central passage.
  • One more distinguishing feature is the fact that the screw conveyor is made by sections installed in the tubing string at equal intervals.
  • Oil-well screw pump driven from the wellhead 1 (designed conventionally) consists of a stator (2) rigidly connected to the tubing string (3) with a rotor (4) installed inside the tubing string (3) and connected to the bottom part of the liner (5), an anchor (6) and a sub (7).
  • the liner (5) end is fitted with a tip (8) allowing for longitudinal motion upward along the inner side of the sub (7). Over the tip (8) the liner (5) is fitted with the end stop (10) made as a landing seat and interacting with the sub (7) from above.
  • the tubing string (3) is driven from the wellhead (1), and the sub (7) is rigidly connected in alignment to the anchor (6) set against the walls of the well (11). Retainers (12) and (13) hold rotor (4) in axial and radial direction against the stator (2).
  • the tubing string (3) is fitted with a screw conveyor (14) on its inner side having a central passage 15 (not less than 1/2 of the inside diameter of the tubing string (3), which provides free fluid flowing in the central part of the tubing string (3).
  • Screw conveyor 14 can be made by sections 14* set in the tubing string (3) at equal intervals (L).
  • L The more the viscosity and density of well fluid are, the smaller the interval L is.
  • Oil-well screw pump operates as follows.
  • Anchor (6) and sub (7) are run in hole (11) to be set at the desired interval (for example, below the pay zone of the well 11), where the anchor (6) is set by hydraulic or mechanical action on the walls of the well 11.
  • a hydraulic anchor (6) is normally run in hole on tubing joints (not shown in the drawing), anchor slips being set on end points after fixing pump anchor (6) on the walls of the well (1 1).
  • tubing string (3) is tripped in the hole with the screw conveyor (14) inside the tubing, and the stator (2) at the bottom with a rotor (4) inside.
  • Retainers (12) and (13) prevent rotor (4) from dropping or displacement against the stator (2).
  • the tubing string (3) and stator 2 can be centered against the walls of the well 11 by any method known like bow springs centralizers (not shown in the drawing). They keep on tripping in until the tip (8) of the liner (5) of the rotor (4) goes into the inner side (9) of the sub (7) and as long as the landing seat (10) interlocks the sub (7), which is identified in the wellhead (3) by dynamometer (not shown in the drawing) as the total weight of the tubing string (3) reduces.
  • the outer surface of the tip (8) and the inner side (9) of the sub 7 are made as mating surfaces (such as slotted or hexagonal joint), which allows these surfaces to move only axially after their interaction and without any slip.
  • the wellhead (11) is sealed-off, and the upper end of the tubing string (3) is tied on the wellhead drive 1.
  • the wellhead drive 1 starts moving tubing strings (3).
  • the tip 8 of the liner 5 prevents the rotor 4 from moving causing movement of the stator 2 against the rotor (4).
  • the screw pump pumps well fluid through the tubing string 3 to the wellhead, where it is pumped off through the pipeline 17 (designed conventionally), and the screw conveyor 14 (with its sections 14") moving with the tubing string 3 produces additional lifting force reducing fluid flow resistance in the tubing string 3.
  • the screw conveyor can be placed inside the purpose-made joints (not shown in the drawing) to join the pipes of the tubing string 3 at equal tubing spacing L.
  • fluid flow resistance in the tubing string is reduced by 10 - 40% (the higher the density and viscosity of the well fluid are, the higher the percentage is) making it possible to use cheaper screw pumps with a less-powered wellhead drive 1.
  • the proposed less powered oil-well screw pump is cheaper and more reliable due to reduction of oil friction against the walls of tubing (especially high-viscosity and heavy oil).
  • This invention is embodied with the use of multifunctional and easily available up-to-date equipment and substances that are widely used in the industry and health care.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention porte sur une technique appartenant au domaine de l'industrie du pétrole et du gaz, à savoir sur des pompes à vis entraînant la colonne de production à partir de la tête de puits, d'où elle peut être utilisée pour remonter un fluide depuis les puits. La pompe à vis pour puits de pétrole entraînée à partir de la tête de puits (1) (conçue de manière classique) comprend un stator (2) relié rigidement à la colonne de production (3) avec un rotor (4) installé à l'intérieur de la colonne de production (3) et relié à la partie inférieure de la colonne perdue (5), un ancrage (6) et un raccord double (7). L'extrémité de la colonne perdue (5) est munie d'un embout (8) permettant un déplacement longitudinal vers le haut le long du côté intérieur du raccord double (7). Sur l'embout (8), la colonne perdue (5) est munie d'une butée d'extrémité (10) conçue comme un siège d'appui et interagissant avec le raccord double (7) depuis le haut. La colonne de production (3) est entraînée à partir de la tête de puits (1), et le raccord double (7) est relié rigidement en alignement avec l'ancrage (6) établi contre les parois du puits (11). Des éléments de retenue (12) et (13) maintiennent le rotor (4) en direction axiale et radiale contre le stator (2). La colonne de production (3) est munie sur son côté intérieur d'un convoyeur à vis (14) comportant un passage central (15) (pas moins de la moitié du diamètre intérieur de la colonne de production (3)), qui délivre un écoulement libre de fluide dans la partie centrale de la colonne de production (3).
PCT/RU2009/000318 2009-02-24 2009-06-26 Pompe à vis de puits de pétrole entraînée à partir de la tête de puits Ceased WO2010098690A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2009106594 2009-02-24
RU2009106594 2009-02-24

Publications (1)

Publication Number Publication Date
WO2010098690A1 true WO2010098690A1 (fr) 2010-09-02

Family

ID=42665734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2009/000318 Ceased WO2010098690A1 (fr) 2009-02-24 2009-06-26 Pompe à vis de puits de pétrole entraînée à partir de la tête de puits

Country Status (1)

Country Link
WO (1) WO2010098690A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107620703A (zh) * 2017-10-10 2018-01-23 中国石油天然气股份有限公司 机泵一体潜油直驱螺杆泵采油装置及方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977096A (ja) * 1982-10-26 1984-05-02 Teruo Fukuda ポンプ
JPS5990795A (ja) * 1982-11-16 1984-05-25 Yamaguchi Denki Koji:Kk 流動体搬送装置
EP0903835A1 (fr) * 1995-04-03 1999-03-24 Z&D Ltd. Pompe à écoulement axial/ hélice marine
RU27650U1 (ru) * 2002-08-02 2003-02-10 Закрытое акционерное общество "Электон" Погружная насосная установка
US20070029245A1 (en) * 2001-06-21 2007-02-08 Kuhn Umweltprodukte Gmbh Device for thickening or dehydrating sludges, watery sediments or the like, especially surplus sludge in sewage treatment plants
RU2338927C1 (ru) * 2007-02-16 2008-11-20 Атлас Мисбахович Бадретдинов Скважинный винтовой насос с устьевым приводом

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5977096A (ja) * 1982-10-26 1984-05-02 Teruo Fukuda ポンプ
JPS5990795A (ja) * 1982-11-16 1984-05-25 Yamaguchi Denki Koji:Kk 流動体搬送装置
EP0903835A1 (fr) * 1995-04-03 1999-03-24 Z&D Ltd. Pompe à écoulement axial/ hélice marine
US20070029245A1 (en) * 2001-06-21 2007-02-08 Kuhn Umweltprodukte Gmbh Device for thickening or dehydrating sludges, watery sediments or the like, especially surplus sludge in sewage treatment plants
RU27650U1 (ru) * 2002-08-02 2003-02-10 Закрытое акционерное общество "Электон" Погружная насосная установка
RU2338927C1 (ru) * 2007-02-16 2008-11-20 Атлас Мисбахович Бадретдинов Скважинный винтовой насос с устьевым приводом

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107620703A (zh) * 2017-10-10 2018-01-23 中国石油天然气股份有限公司 机泵一体潜油直驱螺杆泵采油装置及方法
CN107620703B (zh) * 2017-10-10 2023-05-26 中国石油天然气股份有限公司 机泵一体潜油直驱螺杆泵采油装置及方法

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