Subterranean zone sealing methods and compositions
    1.
    发明授权
    Subterranean zone sealing methods and compositions 失效
    地下区密封方法和组成

    公开(公告)号:US6059035A

    公开(公告)日:2000-05-09

    申请号:US119110

    申请日:1998-07-20

    IPC分类号: E21B33/138 E21B33/13

    CPC分类号: E21B33/138

    摘要: The present invention provides sealing methods and compositions for use in subterranean zones penetrated by well bores. The methods of the invention basically include the steps of preparing a sealing composition which includes an aqueous silicate solution, an epoxide containing liquid and a delayed epoxide hardening agent, placing the sealing composition into a subterranean zone and allowing the sealing composition to set into a rigid impermeable sealing mass in the zone.

    摘要翻译: 本发明提供了用于井眼穿透的地下区域的密封方法和组合物。 本发明的方法基本上包括制备密封组合物的步骤,该密封组合物包括硅酸盐水溶液,含环氧化物的液体和延迟的环氧化物硬化剂,将密封组合物放置在地下区域中并使密封组合物变成刚性 该区域内不可渗透的密封质量。

    Methods of modifying subterranean strata properties
    6.
    发明授权
    Methods of modifying subterranean strata properties 失效
    修改地下层性质的方法

    公开(公告)号:US5873413A

    公开(公告)日:1999-02-23

    申请号:US914594

    申请日:1997-08-18

    摘要: The present invention provides methods of modifying the properties of a subterranean stratum penetrated by a well bore to increase the resistance of the stratum to shear failure. The methods basically include the steps of preparing a hardenable epoxy composition having flexibility upon hardening including an epoxide containing liquid or an epoxy resin and an epoxide containing liquid and a hardening agent. The epoxy composition is pumped into the subterranean stratum by way of the well bore and by way of the porosity of the stratum and then allowed to harden in the stratum.

    摘要翻译: 本发明提供了改变由井眼穿透的地下层的性质以增加地层对剪切破坏的阻力的方法。 所述方法基本上包括以下步骤:制备在硬化时具有柔软性的可硬化环氧组合物,包括含环氧化物的液体或环氧树脂和含环氧化物的液体和硬化剂。 环氧组合物通过井眼并通过层的孔隙泵送到地层中,然后在层中硬化。

    Method of sealing conduits in lateral well bores
    8.
    发明授权
    Method of sealing conduits in lateral well bores 失效
    侧井孔密封方法

    公开(公告)号:US5957204A

    公开(公告)日:1999-09-28

    申请号:US979047

    申请日:1997-11-26

    摘要: The present invention provides methods of sealing conduits in multi-lateral wells whereby the sealant can withstand stress induced conduit movements without failure. The methods basically include the steps of preparing a hardenable epoxy composition having flexibility and resiliency upon hardening including an epoxide containing liquid or an epoxy resin and an epoxide containing liquid and a hardening agent. The epoxy composition is placed into a lateral well bore between a conduit therein and the walls of the lateral well bore and allowed to harden therein.

    摘要翻译: 本发明提供了在多侧井中密封导管的方法,由此密封剂可以承受应力导致的导管运动而没有故障。 所述方法基本上包括制备在硬化时具有柔软性和弹性的可硬化环氧组合物的步骤,包括含环氧化物的液体或环氧树脂和含环氧化物的液体和硬化剂。 将环氧组合物放置在其中的导管和侧孔的壁之间的侧孔中,并允许其在其中硬化。