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Free-piston scrapers

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Industry

  • CPC
  • E21B37/045
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B37/00Methods or apparatus for cleaning boreholes or wells

Current Industry

E21B37/045Free-piston scrapers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Casing exit anchor with redundant activation system
    • Patent number 11,761,277
    • Issue date Sep 19, 2023
    • Baker Hughes Oilfield Operations LLC
    • Tuan Nguyen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Scale sampler plunger
    • Patent number 11,732,552
    • Issue date Aug 22, 2023
    • Saudi Arabian Oil Company
    • Fatimah H. AlNasser
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Downhole cleaning apparatus
    • Patent number 11,174,707
    • Issue date Nov 16, 2021
    • ODFJELL PARTNERS INVEST LTD.
    • Nikolaos Tzallas
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Casing exit anchor with redundant activation system
    • Patent number 11,162,314
    • Issue date Nov 2, 2021
    • Baker Hughes Oilfield Operations LLC
    • Tuan Nguyen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Diffuser assembly
    • Patent number 11,047,181
    • Issue date Jun 29, 2021
    • Cambre Allen Romero
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Testable indexing plug
    • Patent number 11,047,227
    • Issue date Jun 29, 2021
    • Baker Hughes Oilfield Operations LLC
    • Geoffrey Warlick
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Wireline suspendable apparatus for sealing a subterranean well
    • Patent number 10,851,616
    • Issue date Dec 1, 2020
    • Peter Knight
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Delayed fin deployment wiper plug
    • Patent number 10,738,568
    • Issue date Aug 11, 2020
    • ConocoPhillips Company
    • James G. Nanney
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Diffuser assembly
    • Patent number 10,648,256
    • Issue date May 12, 2020
    • Cambre Allen Romero
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of providing a latch for pipeline remediation
    • Patent number 10,533,696
    • Issue date Jan 14, 2020
    • Benton Frederick Baugh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Downhole cleaning apparatus
    • Patent number 10,526,871
    • Issue date Jan 7, 2020
    • ODFJELL PARTNERS INVEST LTD.
    • Nikolaos Tzallas
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Gas lift plunger arrangement
    • Patent number 7,793,728
    • Issue date Sep 14, 2010
    • Well Master Corp.
    • Robert E. Bender
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gas lift plunger arrangement
    • Patent number 7,395,865
    • Issue date Jul 8, 2008
    • Well Master Corp.
    • Robert E. Bender
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Bi-directional traction apparatus
    • Patent number 6,953,086
    • Issue date Oct 11, 2005
    • Weatherford/Lamb, Inc.
    • Neil Andrew Abercrombie Simpson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Subsurface apparatus
    • Patent number 6,722,442
    • Issue date Apr 20, 2004
    • Weatherford/Lamb, Inc.
    • Neil Andrew Abercrombie Simpson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method and apparatus for cleaning wellbore casing
    • Patent number 6,523,612
    • Issue date Feb 25, 2003
    • M-I L.L.C.
    • James Scott Reynolds
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Traction apparatus
    • Patent number 6,460,616
    • Issue date Oct 8, 2002
    • Weatherford/Lamb, Inc.
    • Neil Andrew Abercrombie Simpson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Retrievable pig
    • Patent number 6,122,791
    • Issue date Sep 26, 2000
    • Benton F. Baugh
    • B08 - CLEANING
  • Information Patent Grant

    Drill wiper assembly
    • Patent number 5,732,774
    • Issue date Mar 31, 1998
    • Archie K. Haggard
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and system for cleaning well casing
    • Patent number 4,896,720
    • Issue date Jan 30, 1990
    • Atlantic Richfield Company
    • Mark W. DeRouen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of changing well fluid
    • Patent number 4,893,684
    • Issue date Jan 16, 1990
    • Chevron Research Company
    • Robert L. Alexander
    • B08 - CLEANING
  • Information Patent Grant

    3667544
    • Patent number 3,667,544
    • Issue date Jun 6, 1972
    • B08 - CLEANING
  • Information Patent Grant

    3395759
    • Patent number 3,395,759
    • Issue date Aug 6, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3171487
    • Patent number 3,171,487
    • Issue date Mar 2, 1965
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3052302
    • Patent number 3,052,302
    • Issue date Sep 4, 1962
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2893493
    • Patent number 2,893,493
    • Issue date Jul 7, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2876842
    • Patent number 2,876,842
    • Issue date Mar 10, 1959
    • B08 - CLEANING
  • Information Patent Grant

    2802535
    • Patent number 2,802,535
    • Issue date Aug 13, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2785757
    • Patent number 2,785,757
    • Issue date Mar 19, 1957
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2740480
    • Patent number 2,740,480
    • Issue date Apr 3, 1956
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    DOWNHOLE APPARATUS
    • Publication number 20240052712
    • Publication date Feb 15, 2024
    • DeltaTek Oil Tools Limited
    • Tristam Paul Horn
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CASING EXIT ANCHOR WITH REDUNDANT ACTIVATION SYSTEM
    • Publication number 20210372211
    • Publication date Dec 2, 2021
    • Baker Hughes Oilfield Operations LLC
    • Tuan Nguyen
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CASING EXIT ANCHOR WITH REDUNDANT ACTIVATION SYSTEM
    • Publication number 20210301610
    • Publication date Sep 30, 2021
    • Baker Hughes Oilfield Operations LLC
    • Tuan Nguyen
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Diffuser Assembly
    • Publication number 20200270957
    • Publication date Aug 27, 2020
    • Cambre Allen Romero
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE CLEANING APPARATUS
    • Publication number 20200102810
    • Publication date Apr 2, 2020
    • Odfjell Partners Invest Ltd
    • Nikolaos Tzallas
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SUBTERRANEAN WELL SEALING INJECTOR
    • Publication number 20190169955
    • Publication date Jun 6, 2019
    • Peter Knight
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SCALE IMPEDING ARRANGEMENT AND METHOD
    • Publication number 20190120018
    • Publication date Apr 25, 2019
    • BAKER HUGHES, A GE COMPANY, LLC
    • Lei Zhao
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Diffuser Assembly
    • Publication number 20190063170
    • Publication date Feb 28, 2019
    • Cambre Allen Romero
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE CLEANING APPARATUS
    • Publication number 20170074071
    • Publication date Mar 16, 2017
    • Odfjell Partners Invest Ltd
    • Nikolaos Tzallas
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Gas lift plunger arrangement
    • Publication number 20090126935
    • Publication date May 21, 2009
    • Robert E. Bender
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Gas lift plunger arrangement
    • Publication number 20060185853
    • Publication date Aug 24, 2006
    • Well Master Corp
    • Robert E. Bender
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Bi-directional traction apparatus
    • Publication number 20040045474
    • Publication date Mar 11, 2004
    • Neil Andrew Abercrombie Simpson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TRACTION APPARATUS
    • Publication number 20020108751
    • Publication date Aug 15, 2002
    • NEIL ANDREW ABERCROMBIE SIMPSON
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Subsurface apparatus
    • Publication number 20020079107
    • Publication date Jun 27, 2002
    • Neil Andrew Abercrombie Simpson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Use of 13C nuclear magnetic resonance to detect binding to target m...
    • Publication number 20020037529
    • Publication date Mar 28, 2002
    • Stephen W. Fesik
    • G01 - MEASURING TESTING
  • Information Patent Application

    Method and apparatus for cleaning wellbore casing
    • Publication number 20010042623
    • Publication date Nov 22, 2001
    • James Scott Reynolds
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    USE OF 13C NUCLEAR MAGNETIC RESONANCE TO DETECT BINDING TO TARGET M...
    • Publication number 20010004528
    • Publication date Jun 21, 2001
    • STEPHEN W. FESIK
    • G01 - MEASURING TESTING