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    ENHANCED SMEAR EFFECT FRACTURE PLUGGING PROCESS FOR DRILLING SYSTEMS
    3.
    发明申请
    ENHANCED SMEAR EFFECT FRACTURE PLUGGING PROCESS FOR DRILLING SYSTEMS 审中-公开
    用于钻井系统的增强的SMEAR效应破碎过程

    公开(公告)号：US20140326511A1

    公开(公告)日：2014-11-06

    申请号：US14331692

    申请日：2014-07-15

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： David H. BEARDMORE ,  Paul D. SCOTT ,  Rick D. WATTS

    IPC: E21B21/00 ,  E21B33/138

    CPC classification number: E21B21/003 ,  E21B17/1078 ,  E21B31/03 ,  E21B33/138

    Abstract: This invention relates to drilling a well, particularly an oil or gas well, where casing or liner will be installed to stabilize the wellbore. The present invention is intended to permit more drilling and longer lengths of casing or liner to be installed at one time. The present invention includes a combination of a smear tool and specially sized granular lost circulation material solids in the drilling mud which work together to close and seal leaking formations and fractures whether pre-existing or induced by drilling. By the natural collection of the inventive solids along with the conventional particles in the drilling mud to form a filter cake at the problem areas along the wall of the wellbore and the smear tool arranged to compress the filter cake into the problem areas, lost circulation is minimized Maintaining circulation naturally allows for longer drilling cycles and potentially fewer liner joints in the well. As such, larger diameter boreholes are located in the hydrocarbon bearing formation and less time is spent installing casing or liner pipe.

    Abstract translation: 本发明涉及钻井，特别是钻井或油井，其中将安装套管或衬套以稳定井筒。 本发明旨在允许一次安装更多的钻孔和更长的套管或衬套。 本发明包括在钻井泥浆中的涂抹工具和特殊尺寸的颗粒状流失物质固体的组合，它们一起工作以关闭和密封泄漏的结构和裂缝，无论是否已经存在或通过钻孔引起。 通过将本发明固体与钻井泥浆中的常规颗粒一起天然收集，以在沿着井眼的壁的问题区域形成滤饼，以及布置成将滤饼压缩到问题区域中的涂抹工具，失去循环是 最小化保持循环自然地允许井的更长的钻井循环和潜在的更少的衬管接头。 因此，较大直径的钻孔位于烃轴承地层中，较少的时间用于安装套管或衬管。

    METHOD AND APPARATUS FOR FILLING AN ANNULUS BETWEEN CASING AND ROCK IN AN OIL OR GAS WELL
    6.
    发明申请
    METHOD AND APPARATUS FOR FILLING AN ANNULUS BETWEEN CASING AND ROCK IN AN OIL OR GAS WELL 审中-公开
    用于在油或气井中灌注岩石和岩石之间的方法和装置的方法和装置

    公开(公告)号：US20160237779A1

    公开(公告)日：2016-08-18

    申请号：US15042814

    申请日：2016-02-12

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Tove HUSBY ,  Rick D. WATTS ,  Dianne TOMPKINS ,  Helen HANEFERD ,  Lars HOVDA

    IPC: E21B33/14

    CPC classification number: E21B36/04 ,  E21B33/13

    Abstract: The invention relates to the decommissioning of hydrocarbon wells. It concerns the artificial promoting or inducing of creep in the overburden formation 3 surrounding an oil well 1, so that the formation rock 3 encroaches against the casing 5 to form a seal. This avoids the need to plug the annulus between the casing 5 and formation 3 with cement. The overburden may be caused to creep by reducing the pressure in the annulus, by applying heat to the overburden rock or by stressing the rock repeatedly to cause fatigue in the rock 3.

    Abstract translation: 本发明涉及烃井的退役。 它涉及在围绕油井1的上覆岩层3中的人造促进或诱导蠕变，使得地层岩石3侵入壳体5以形成密封。 这避免了需要用水泥塞住套管5和地层3之间的环空。 可能通过减小环空中的压力，通过向上覆岩层施加热量或通过重复地施加岩石以在岩石3中引起疲劳而使上覆岩层蠕变。

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