CA2058080A1 - Composite stator construction for downhole drilling motors - Google Patents

Composite stator construction for downhole drilling motors

Info

Publication number
CA2058080A1
CA2058080A1 CA 2058080 CA2058080A CA2058080A1 CA 2058080 A1 CA2058080 A1 CA 2058080A1 CA 2058080 CA2058080 CA 2058080 CA 2058080 A CA2058080 A CA 2058080A CA 2058080 A1 CA2058080 A1 CA 2058080A1
Authority
CA
Canada
Prior art keywords
downhole drilling
stator
motor
metallic
stator construction
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.)
Granted
Application number
CA 2058080
Other languages
French (fr)
Other versions
CA2058080C (en
Inventor
John Forrest
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.)
Baker Hughes Holdings LLC
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 CA2058080A1 publication Critical patent/CA2058080A1/en
Application granted granted Critical
Publication of CA2058080C publication Critical patent/CA2058080C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines 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
    • F01C1/101—Moineau-type

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)
  • Rotary Pumps (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A composite stator construction for a downhole drilling motor which provides improved sealing and distortion properties. The elastomer which maintains the sealing/pumping action of the motor is applied in a uniform thickness to a rigid metallic form. In the stator, the rigid former has the basic configuration of the stator and is mounted within the casing of the motor. In the rotor, the elastomer can be applied directly to a metallic rotor core. The basic geometry is provided by the metallic former thereby reduces distortion of the lobes under increased torsional forces.
CA 2058080 1990-12-20 1991-12-19 Composite stator construction for downhole drilling motors Expired - Lifetime CA2058080C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63224790A 1990-12-20 1990-12-20
US07/632,247 1990-12-20

Publications (2)

Publication Number Publication Date
CA2058080A1 true CA2058080A1 (en) 1992-06-21
CA2058080C CA2058080C (en) 1997-11-18

Family

ID=24534732

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2058080 Expired - Lifetime CA2058080C (en) 1990-12-20 1991-12-19 Composite stator construction for downhole drilling motors

Country Status (7)

Country Link
CA (1) CA2058080C (en)
DE (1) DE4141851C2 (en)
FR (1) FR2670838B1 (en)
GB (1) GB2255594B (en)
HU (1) HU207569B (en)
MX (1) MX9102551A (en)
NL (1) NL9102097A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6905319B2 (en) 2002-01-29 2005-06-14 Halliburton Energy Services, Inc. Stator for down hole drilling motor
US7549487B2 (en) 2006-08-07 2009-06-23 Coiled Tubing Rental Tools, Inc. Mandrel and bearing assembly for downhole drilling motor
US7624819B1 (en) 2008-08-01 2009-12-01 Coiled Tubing Rental Tools, Inc. Universal joint assembly
WO2012177339A2 (en) 2011-06-22 2012-12-27 Coiled Tubing Rental Tools, Inc. Housing, mandrel and bearing assembly for downhole drilling motor
WO2014014442A1 (en) 2012-07-16 2014-01-23 Halliburton Energy Services, Inc. Downhole motors having adjustable power units

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821867A1 (en) * 1998-05-15 1999-11-18 Artemis Kautschuk Kunststoff Downhole deep drilling motor based on eccentric mono-pump principle
CN103758756B (en) * 2014-01-22 2016-01-06 中国石油天然气股份有限公司 Balance type metal screw pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527673A (en) * 1947-02-28 1950-10-31 Robbins & Myers Internal helical gear pump
US3499389A (en) * 1967-04-19 1970-03-10 Seeberger Kg Worm pump
FR2349729A1 (en) * 1976-04-27 1977-11-25 Tiraspolsky Wladimir Hydraulic machine with helical rotor - has internal and external helices assembled from separately machined longitudinal sections
DE2713468C3 (en) * 1977-03-26 1982-09-02 Allweiler Ag, 7760 Radolfzell Stator for progressing cavity pumps
US4265323A (en) * 1979-09-13 1981-05-05 Christensen, Inc. Direct bit drive for deep drilling tools
US4676725A (en) * 1985-12-27 1987-06-30 Hughes Tool Company Moineau type gear mechanism with resilient sleeve
EP0358789A1 (en) * 1988-09-14 1990-03-21 FOREG Aktiengesellschaft Stator for an eccentric worm pump
DE4006339C2 (en) * 1990-03-01 1994-08-04 Gd Anker Gmbh & Co Kg Stator for an eccentric screw pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6905319B2 (en) 2002-01-29 2005-06-14 Halliburton Energy Services, Inc. Stator for down hole drilling motor
US7549487B2 (en) 2006-08-07 2009-06-23 Coiled Tubing Rental Tools, Inc. Mandrel and bearing assembly for downhole drilling motor
US7624819B1 (en) 2008-08-01 2009-12-01 Coiled Tubing Rental Tools, Inc. Universal joint assembly
WO2012177339A2 (en) 2011-06-22 2012-12-27 Coiled Tubing Rental Tools, Inc. Housing, mandrel and bearing assembly for downhole drilling motor
US8869917B2 (en) 2011-06-22 2014-10-28 Coiled Tubing Rental Tools, Inc. Housing, mandrel and bearing assembly for downhole drilling motor
US8973677B2 (en) 2011-06-22 2015-03-10 Coiled Tubing Rental Tools, Inc. Housing, mandrel and bearing assembly positionable in a wellbore
WO2014014442A1 (en) 2012-07-16 2014-01-23 Halliburton Energy Services, Inc. Downhole motors having adjustable power units
US8899351B2 (en) 2012-07-16 2014-12-02 Halliburton Energy Services, Inc. Apparatus and method for adjusting power units of downhole motors

Also Published As

Publication number Publication date
GB2255594A (en) 1992-11-11
HU207569B (en) 1993-04-28
GB2255594B (en) 1994-07-20
MX9102551A (en) 1992-06-01
DE4141851C2 (en) 1995-10-26
NL9102097A (en) 1992-07-16
HU913691D0 (en) 1992-02-28
CA2058080C (en) 1997-11-18
HUT59735A (en) 1992-06-29
FR2670838A1 (en) 1992-06-26
DE4141851A1 (en) 1992-07-02
GB9125527D0 (en) 1992-01-29
FR2670838B1 (en) 1995-07-07

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry