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    Hydrocarbon production using multilateral wellbores.
    44.
    发明专利
    Hydrocarbon production using multilateral wellbores. 未知

    公开(公告)号：GB2327695A

    公开(公告)日：1999-02-03

    申请号：GB9819488

    申请日：1996-03-25

    Applicant: BAKER HUGHES INC

    Inventor： DONOVAN JOSEPH F ,  TURICK DANIEL J ,  JOHNSON MICHAEL H ,  WATKINS LARRY A

    IPC: B04B1/08 ,  B04B5/12 ,  E21B34/06 ,  E21B37/06 ,  E21B41/02 ,  E21B43/12 ,  E21B43/14 ,  E21B43/30 ,  E21B43/38 ,  E21B43/40

    Abstract: A system for producing a field having several reservoirs (10, 12, 14) is described. The system comprises a main bore having various branch bores leading to production or disposal zones of the reservoirs. Various arrangements are described in which produced fluids are delivered to downhole treatment devices or separators, from which the different fluid components are either sent to the surface or to downhole disposal zones. In particular, downhole treatment devices 160 may be located in the branch wellbores 170 to enhance selected properties of the produced fluids; such devices may include a downhole storage zone for the treatment chemical. Treatment chemicals may comprise inhibitors of hydrate, corrosion, paraffin wax or scale, a hydrogen sulphide scavenger, a water clarifier or an emulsion breaker.

    Expandable composite tubulars
    47.
    发明专利
    Expandable composite tubulars 未知

    公开(公告)号：AU2008237556B2

    公开(公告)日：2011-06-02

    申请号：AU2008237556

    申请日：2008-10-28

    Applicant: BAKER HUGHES INC

    Inventor： WATKINS LARRY A ,  RICHARD BENNETT M ,  ARONSTAM PETER

    IPC: E21B17/00 ,  E21B43/10

    Abstract: Composite tubulars that have not been polymerized and are thus flexible enough to be coiled are delivered into a wellbore and expanded. The expansion occurs from an external catalist such as heat or releases the internal catalyst and allows the expanded tubular to become rigid. Optionally, healing agents can be imbedded in the tubular wall to be released to seal subsequently forming cracks.

    48.
    发明专利
    未知

    公开(公告)号：DE602004020362D1

    公开(公告)日：2009-05-14

    申请号：DE602004020362

    申请日：2004-09-13

    Applicant: BAKER HUGHES INC

    Inventor： ARONSTAM PETER S ,  FINCHER ROGER W ,  WATKINS LARRY A

    IPC: E21B7/06 ,  E21B10/60 ,  E21B10/61 ,  E21B10/62 ,  E21B17/10

    Abstract: A drilling system includes a steerable bottomhole assembly (BHA) having a steering unit and a control unit that provide dynamic control of drill bit orientation or tilt. Exemplary steering units can adjust bit orientation at a rate that approaches or exceeds the rotational speed of the drill string or drill bit, can include a dynamically adjustable articulated joint having a plurality of elements that deform in response to an excitation signal, can include adjustable independently rotatable rings for selectively tilting the bit, and/or can include a plurality of selectively extensible force pads. The force pads are actuated by a shape change material that deforms in response to an excitation signal. A method of directional drilling includes continuously cycling the position of the steering unit based upon the rotational speed of the drill string and/or drill bit and with reference to an external reference point.

    Apparatus and methods for self-powered communication and sensor network
    49.
    发明专利
    Apparatus and methods for self-powered communication and sensor network 未知

    公开(公告)号：GB2430688B

    公开(公告)日：2008-10-15

    申请号：GB0625466

    申请日：2005-06-14

    Applicant: BAKER HUGHES INC

    Inventor： CHEMALI ROLAND E ,  KRUEGER VOLKER ,  ARONSTAM PETER S ,  WATKINS LARRY A ,  FINCHER ROGER W

    IPC: E21B17/02 ,  E21B41/00 ,  E21B47/12 ,  E21B47/14 ,  E21B47/16 ,  G01V11/00

    Abstract: A measurement and communication system for use with a tubular string, comprises a tubular string having a plurality of self-powered, autonomous telemetry stations disposed at predetermined locations along the tubular string. Each autonomous telemetry station is adapted to receive at least one first signal and transmit at least one second signal related to the at least one first signal. Power is extracted from potential energy sources proximate each autonomous telemetry station. A method of communicating information along a tubular string comprises, disposing an autonomous telemetry station at predetermined locations along the tubular string. A preferred transmission path is autonomously determined at each of the autonomous telemetry stations. Information is transmitted along the tubular string according to the autonomously determined preferred path.

    Active controlled bottomhole pressure system and method with continuous circulation system
    50.
    发明专利
    Active controlled bottomhole pressure system and method with continuous circulation system 未知

    公开(公告)号：GB2441927A

    公开(公告)日：2008-03-19

    申请号：GB0724939

    申请日：2006-06-16

    Applicant: BAKER HUGHES INC

    Inventor： KRUEGER SVEN ,  KRUEGER VOLKER ,  ARONSTAM PETER S ,  GRIMMER HARALD ,  FINCHER ROGER W ,  WATKINS LARRY A

    IPC: E21B21/08 ,  E21B19/16 ,  E21B21/10

    Abstract: An APD Device provides a pressure differential in a wellbore to control dynamic pressure loss while drilling fluid is continuously circulated in the wellbore. A continuous circulation system circulates fluid both during drilling of the wellbore and when the drilling is stopped. Operating the APD Device allows wellbore pressure control during continuous circulation without substantially changing density of the fluid. The APD Device can maintain wellbore pressure below the combined pressure caused by weight of the fluid and pressure losses created due to circulation of the fluid in the wellbore, maintain the wellbore at or near a balanced pressure condition, maintain the wellbore at an underbalanced condition, reduce the swab effect in the wellbore, and/or reduce the surge effect in the wellbore. A flow restriction device that creates a backpressure in the wellbore annulus provides surface control of wellbore pressure.

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