WO2001044615A3 - Composite stator for drilling motors and method of constructing same - Google Patents

Composite stator for drilling motors and method of constructing same Download PDF

Info

Publication number
WO2001044615A3
WO2001044615A3 PCT/US2000/042082 US0042082W WO0144615A3 WO 2001044615 A3 WO2001044615 A3 WO 2001044615A3 US 0042082 W US0042082 W US 0042082W WO 0144615 A3 WO0144615 A3 WO 0144615A3
Authority
WO
WIPO (PCT)
Prior art keywords
inner liner
external tube
helical
composite stator
end portions
Prior art date
Application number
PCT/US2000/042082
Other languages
French (fr)
Other versions
WO2001044615A2 (en
Inventor
William David Murray
Heino J Rohde
Bruno Harald Kaechele
Original Assignee
Ewm Technology Inc
William David Murray
Heino J Rohde
Bruno Harald Kaechele
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 Ewm Technology Inc, William David Murray, Heino J Rohde, Bruno Harald Kaechele filed Critical Ewm Technology Inc
Priority to AU47069/01A priority Critical patent/AU4706901A/en
Publication of WO2001044615A2 publication Critical patent/WO2001044615A2/en
Publication of WO2001044615A3 publication Critical patent/WO2001044615A3/en

Links

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/02—Fluid rotary type drives
    • 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
    • F04C2/1073—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 where one member is stationary while the other member rotates and orbits
    • F04C2/1075—Construction of the stationary member

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

A composite stator (10) having first and second end portions (12, 14) , an external tube (16), an inner liner (18) and an elastomeric layer (20). The inner liner is formed of a rigid material and has a helical, multi-lobed configuration of uniform thickness. A plurality of helical spaces (22) are formed between the inner liner and the external tube. In a first embodiment, the ends of the inner liner are formed to a circular shape and welded (24a, 24b) to the external tube and the end portions. The helical spaces between the external tube and the inner liner may be filled with a thermally conductive material for heat dissipation and structural reinforcement. In a second embodiment, the inner liner ends have a multi-lobed shape. A passageway (122) is formed through the helical spaces between the external tube and the inner liner to allow a controlled amount of drilling mud to pass through and cool the inner liner. The inner liner is secured to the external tube via welding (26a, 26b, 26c), shrink-fitting, gluing or with restraining blocks (231).
PCT/US2000/042082 1999-11-10 2000-11-10 Composite stator for drilling motors and method of constructing same WO2001044615A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU47069/01A AU4706901A (en) 1999-11-10 2000-11-10 Composite stator for drilling motors and method of constructing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16446099P 1999-11-10 1999-11-10
US60/164,460 1999-11-10

Publications (2)

Publication Number Publication Date
WO2001044615A2 WO2001044615A2 (en) 2001-06-21
WO2001044615A3 true WO2001044615A3 (en) 2002-01-03

Family

ID=22594590

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042082 WO2001044615A2 (en) 1999-11-10 2000-11-10 Composite stator for drilling motors and method of constructing same

Country Status (2)

Country Link
AU (1) AU4706901A (en)
WO (1) WO2001044615A2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6604921B1 (en) * 2002-01-24 2003-08-12 Schlumberger Technology Corporation Optimized liner thickness for positive displacement drilling motors
US6604922B1 (en) * 2002-03-14 2003-08-12 Schlumberger Technology Corporation Optimized fiber reinforced liner material for positive displacement drilling motors
US6881045B2 (en) 2003-06-19 2005-04-19 Robbins & Myers Energy Systems, L.P. Progressive cavity pump/motor
US7098569B2 (en) 2004-07-30 2006-08-29 Ballard Power Systems Corporation Rotor assembly for a permanent magnet power electric machine
GB0805250D0 (en) * 2008-03-20 2008-04-30 Advanced Interactive Materials Stator for use in helicoidal motor
US9393648B2 (en) 2010-03-30 2016-07-19 Smith International Inc. Undercut stator for a positive displacment motor
US20130052067A1 (en) * 2011-08-26 2013-02-28 Baker Hughes Incorporated Downhole Motors and Pumps with Improved Stators and Methods of Making and Using Same
US9540545B2 (en) * 2011-09-02 2017-01-10 Schlumberger Technology Corporation Plasma treatment in fabricating directional drilling assemblies
US8888474B2 (en) 2011-09-08 2014-11-18 Baker Hughes Incorporated Downhole motors and pumps with asymmetric lobes
CN103758756B (en) * 2014-01-22 2016-01-06 中国石油天然气股份有限公司 Balanced type metal screw pump
JP6349565B2 (en) * 2014-01-28 2018-07-04 兵神装備株式会社 Uniaxial eccentric screw pump
FR3020097B1 (en) * 2014-04-22 2019-07-19 Pcm Technologies ADVANCED CAVITY PUMP
RU2652725C1 (en) * 2017-05-10 2018-04-28 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Stator of screw gyratory hydraulic machine
RU2652724C1 (en) * 2017-05-10 2018-04-28 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Stator of screw gyratory hydraulic machine
RU2689014C1 (en) * 2018-06-18 2019-05-23 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Stator of screw gerotor hydraulic machine
RU2688824C1 (en) * 2018-09-26 2019-05-22 Общество с ограниченной ответственностью "Фирма "Радиус-Сервис" Hydraulic downhole motor
DE102020004334A1 (en) * 2020-07-20 2022-01-20 Wilhelm Kächele GmbH Stator for progressing cavity machine
DE202022104701U1 (en) * 2022-08-19 2023-11-22 Vogelsang Gmbh & Co. Kg Displacer body and pump housing for a positive displacement pump

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499389A (en) * 1967-04-19 1970-03-10 Seeberger Kg Worm pump
DE2043609A1 (en) * 1970-09-03 1972-03-09 Zyklos Metallbau KG Dipl.-Ing. Karl Hagele, 7143 Vaihingen Screw pump with helical rotor
DE3438379A1 (en) * 1984-10-19 1986-04-24 Kunststofftechnik Rodenberg GmbH & Co KG, 3054 Rodenberg Stator for eccentric spiral pumps
US4614232A (en) * 1984-03-19 1986-09-30 Norton Christensen, Inc. Device for delivering flowable material
US5171138A (en) * 1990-12-20 1992-12-15 Drilex Systems, Inc. Composite stator construction for downhole drilling motors
US5171139A (en) * 1991-11-26 1992-12-15 Smith International, Inc. Moineau motor with conduits through the stator
US5221197A (en) * 1991-08-08 1993-06-22 Kochnev Anatoly M Working member of a helical downhole motor for drilling wells
US6162032A (en) * 1998-02-04 2000-12-19 Artemis Kautschuk- Und Kunststofftechnik Gmbh & Cie Elastomeric stator for eccentric spiral pumps

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499389A (en) * 1967-04-19 1970-03-10 Seeberger Kg Worm pump
DE2043609A1 (en) * 1970-09-03 1972-03-09 Zyklos Metallbau KG Dipl.-Ing. Karl Hagele, 7143 Vaihingen Screw pump with helical rotor
US4614232A (en) * 1984-03-19 1986-09-30 Norton Christensen, Inc. Device for delivering flowable material
DE3438379A1 (en) * 1984-10-19 1986-04-24 Kunststofftechnik Rodenberg GmbH & Co KG, 3054 Rodenberg Stator for eccentric spiral pumps
US5171138A (en) * 1990-12-20 1992-12-15 Drilex Systems, Inc. Composite stator construction for downhole drilling motors
US5221197A (en) * 1991-08-08 1993-06-22 Kochnev Anatoly M Working member of a helical downhole motor for drilling wells
US5171139A (en) * 1991-11-26 1992-12-15 Smith International, Inc. Moineau motor with conduits through the stator
US6162032A (en) * 1998-02-04 2000-12-19 Artemis Kautschuk- Und Kunststofftechnik Gmbh & Cie Elastomeric stator for eccentric spiral pumps

Also Published As

Publication number Publication date
WO2001044615A2 (en) 2001-06-21
AU4706901A (en) 2001-06-25

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