METHOD AND APPARATUS FOR FORMATION DAMAGE REMOVAL
    2.
    发明申请
    METHOD AND APPARATUS FOR FORMATION DAMAGE REMOVAL 审中-公开
    用于形成损伤去除的方法和设备

    公开(公告)号:WO0210546A2

    公开(公告)日:2002-02-07

    申请号:PCT/CA0101082

    申请日:2001-07-26

    Applicant: SASK DAVID

    Inventor: SASK DAVID

    CPC classification number: E21B43/255 E21B21/16 E21B34/066 E21B37/00

    Abstract: A method of treating an underground formation that has been penetrated by a well, the well having a wellbore. The method comprising the steps of lowering a valve into the well until the valve is adjacent the formation with the valve being placed to control flow of fluid between the formation and the wellbore, establishing a pressure differential across the valve; and selectively and repeatedly opening and closing the valve to cause cyclical pressure variation in the formation and induce surges of fluid from the formation into the wellbore. Apparatus for carrying out the method is also disclosed. A method of operating a downhole valve is also disclosed. A method of formation evaluation is also disclosed.

    Abstract translation: 一种处理被井穿透的地下地层的方法,该井具有井筒。 所述方法包括以下步骤:将阀降入所述井中直到所述阀邻近所述地层,并且放置所述阀以控制所述地层与所述井眼之间的流体流动,在所述阀上建立压差; 并且选择性地并且重复地打开和关闭阀以引起地层中的循环压力变化并且引起流体从地层涌入井筒中。 还公开了执行该方法的装置。 还公开了一种操作井下阀的方法。 还公开了一种形成评估的方法。

    METHOD AND APPARATUS FOR FORMATION DAMAGE REMOVAL

    公开(公告)号:WO2002010546A3

    公开(公告)日:2002-02-07

    申请号:PCT/CA2001/001082

    申请日:2001-07-26

    Applicant: SASK, David

    Inventor: SASK, David

    Abstract: A method of treating an underground formation that has been penetrated by a well, the well having a wellbore. The method comprising the steps of lowering a valve into the well until the valve is adjacent the formation with the valve being placed to control flow of fluid between the formation and the wellbore, establishing a pressure differential across the valve; and selectively and repeatedly opening and closing the valve to cause cyclical pressure variation in the formation and induce surges of fluid from the formation into the wellbore. Apparatus for carrying out the method is also disclosed. A method of operating a downhole valve is also disclosed. A method of formation evaluation is also disclosed.

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