СИСТЕМА И СПОСОБ ПОВТОРНОГО ЗАКАНЧИВАНИЯ СТАРЫХ СКВАЖИН

    公开(公告)号:EA018335B1

    公开(公告)日:2013-07-30

    申请号:EA201071158

    申请日:2009-04-01

    Applicant: STATOIL ASA

    Abstract: Системадляповторногозаканчиваниястаройскважины (24) дляувеличениянефтеотдачиизпласта (26), содержащаятрубу (27), введеннуюв старуюскважину (24), ипоменьшеймередвадроссельныхэлементаилинабухающихпакера (29), последовательноразмещенныхвдольдлиныповторнозаканчиваемойскважины (24, 27) иобразующихмеждунимисекциюскважины, приэтомуказаннаятрубасодержитпоменьшеймереодинавтономныйклапан (2), размещенныйв секциискважины, образованноймеждууказаннымидвумяпакерамиилидроссельнымиэлементами (29), действующийпопринципуБернуллии имеющий, посуществу, постоянноезначениеобъемногорасходапотокавышезаданногоперепададавлений. Такжепредставленспособповторногозаканчиваниястаройскважины (24) дляувеличениянефтеотдачиизпласта (26).

    42.
    发明专利
    未知

    公开(公告)号:NO20090494L

    公开(公告)日:2010-08-02

    申请号:NO20090494

    申请日:2009-01-30

    Applicant: STATOIL ASA

    Abstract: The present invention relates to a method of improving flow stability for a multiphase fluid flowing through a tubular element (1), comprising arranging a flow control device (2) along a flow path (F) through the tubular element (1), the flow control device (2) comprising a housing (4), an inlet (10) arranged on an upstream side of the control device (2), an outlet (23, 13) arranged on a downstream side of the control device (2), and a movable body (9) provided within the housing (4) along an internal flow path (11) through the control device (2) from the inlet (10) to the outlet (23, 13), the body (9) being arranged such that changes in velocity and/or properties and/or composition of the fluid flowing along the internal flow path (11) result in changes to the forces acting on the body (9) as a result of the Bernoulli principle, thereby adjusting the flow of fluid through the control device (2).

    SYSTEM AND METHOD FOR CONTROLLING THE FLOW OF FLUID IN BRANCHED WELLS

    公开(公告)号:CA2717858A1

    公开(公告)日:2009-09-17

    申请号:CA2717858

    申请日:2009-03-10

    Applicant: STATOIL ASA

    Abstract: A system for controlling the flow of fluid in a branched well from a reservoir (29), the system comprising a completed main well (27) having at least one uncompleted branch well (25), an annulus (24) defined between the reservoir (29) and a production pipe (1) of the completed main well (27) and at least two successive swell packers or constrictors (26) defining at least one longitudinal section of the main well (27) and within which at least one branch well (25) is arranged, and comprising at least one autonomous valve (2) arranged in said longitudinal section of the main well (27) defined between said two successive swell packers or constrictors (26). The uncompleted branch wells (25) are provided to increase the drainage area, i.e. maximum reservoir contact (MRC). Disclosed is also a method for controlling the flow of fluid in a branched well from a reservoir (29).

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