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    HYDROCARBON PRODUCTION USING MULTILATERAL WELL BORES
    51.
    发明专利
    HYDROCARBON PRODUCTION USING MULTILATERAL WELL BORES 未知

    公开(公告)号：CA2216430C

    公开(公告)日：2006-12-12

    申请号：CA2216430

    申请日：1996-03-25

    Applicant: BAKER HUGHES INC

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

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

    Abstract: A system for producing a field having several reservoirs (10, 12, 14) and an aquifer (16) is described. Branch well bores (30) are drilled from the main well bore (2) towards the different reservoirs. One of the branches may contain a downhole separator for separating oil and water, the water being re-injected either into aquifer (16) or into the aquifer associated wrath the different reservoirs; another of the branches may contain a downhole separator for separating oil and gas, the gas being re-injected into the gas cap associated with the different reservoirs; another of the branches may contain a downhole storage device for storing chemicals for treatment against corrosion, scale, paraffin wax, hydrogen sulfide etc.; another of the branches may contain a unit for cracking and catalyzing the production fluids. Downhole flow control devices such as chokes may be located in the branch well bores the production of the different reservoirs being commingled in the main well bore.

    SYSTEM AND METHODS OF COMMUNICATING OVER NOISY COMMUNICATIONCHANNELS
    52.
    发明专利
    SYSTEM AND METHODS OF COMMUNICATING OVER NOISY COMMUNICATIONCHANNELS 未知

    公开(公告)号：CA2603536A1

    公开(公告)日：2006-10-19

    申请号：CA2603536

    申请日：2006-04-04

    Applicant: BAKER HUGHES INC

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

    IPC: E21B47/12 ,  H04L25/02 ,  H04B1/10 ,  H04B1/12 ,  H04H60/31 ,  H04L27/26

    Abstract: A system and methods of transmitting information between a first location an d a second location comprise transmitting a data signal and a known signal fro m one of the first location and the second location over a signal channel havi ng a first noise component. A second noise component is measured in a noise channel adjacent the signal channel. The data signal, the known signal, and the first noise component are received at the other location. The first nois e component is estimated based on the second noise component. The estimated noise component is combined with the received data signal and the received known signal to generate noise-cancelled received data and received known signals. The noise-cancelled received known signal is processed to obtain an estimate of the channel transfer function. The estimated channel transfer function is combined with the noise-cancelled received data signal to reconstruct the transmitted data signal.

    DRILLING FLUID CIRCULATION SYSTEM AND METHOD
    55.
    发明专利
    DRILLING FLUID CIRCULATION SYSTEM AND METHOD 未知

    公开(公告)号：CA2506917A1

    公开(公告)日：2004-06-10

    申请号：CA2506917

    申请日：2003-11-19

    Applicant: BAKER HUGHES INC

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

    IPC: E21B21/00 ,  E21B21/08

    Abstract: The present invention provides drilling systems for drilling wellbores. The drilling system includes an umbilical that passes through a wellhead and carries a drill bit. A drilling fluid system (18) supplies drilling fluid in to an annulus (35) (supply line) between the umbilical and the wellbore, which discharges at the drill bit bottom and returns to the wellhead through the umbilical (return line) (24) carrying the drill cuttings. A fluid circulatio n device (30), such as a turbine or centrifugal pump, is operated in the retur n line to provide the primary motive force for circulating drilling fluid through a fluid circuit formed by the supply line (22) and return line (24). Optionally, a secondary fluid circulation device in fluid communication with the return line can cooperate with the fluid circulation device to circulate drilling fluid and/or a near bit fluid circulation device can be used to provide localized flow control or suction pressure to improve bit cleaning.

    Method of producing hydrocarbons from a multilateral wellbore system
    59.
    发明专利
    Method of producing hydrocarbons from a multilateral wellbore system 未知

    公开(公告)号：GB2332464A

    公开(公告)日：1999-06-23

    申请号：GB9906150

    申请日：1996-03-25

    Applicant: BAKER HUGHES INC

    Inventor： DONOVAN JOSEPH F ,  TURICK JR DANIEL ,  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 ,  E21B43/34

    Abstract: The method comprises: (a) forming a primary wellbore 2 in a non-producing formation adjacent to but spaced apart from a producing zone; (b) drilling a branch wellbore 106 extending from the primary wellbore 2 and projecting into the producing zone 14 for producing eg gaseous hydrocarbons; (c) forming a junction at the intersection of the primary wellbore 2 and branch wellbore 106, said junction formed entirely within the non-producing zone; (d) producing the hydrocarbons from the producing zone by flowing such hydrocarbons through the junction and the primary wellbore 2; and (e) placing a flow control device 114, 115 in the branch wellbore 106 for controlling the flow of the hydrocarbons from the producing zone into the primary wellbore 2, whereby the primary wellbore 2 is substantially free of equipment which is not utilized for flowing hydrocarbons through the primary wellbore. The flow control device 114, 115 may be a pressure sensitive device that allows natural gas to enter the diverter tubing 116 and commingling assembly 112.

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