Methods of sealing pipe strings in disposal wells
    22.
    发明授权
    Methods of sealing pipe strings in disposal wells 失效
    处理井密封管柱的方法

    公开(公告)号:US06321841B1

    公开(公告)日:2001-11-27

    申请号:US09789446

    申请日:2001-02-21

    IPC分类号: E21B3314

    摘要: Improved methods of completing wells penetrating subterranean corrosive fluid disposal zones are provided. The methods basically comprise the steps of preparing a pumpable, water compatible, corrosion resistant, hardenable epoxy sealing composition comprised of a hardenable epoxide containing liquid and a hardening agent, placing the epoxy sealing composition in the annulus between a string of pipe and a well bore penetrating a disposal zone and allowing the epoxy sealing composition to harden.

    摘要翻译: 提供完善穿透地下腐蚀性液体处理区的井的改进方法。 该方法基本上包括以下步骤:制备由可硬化的含环氧化物的液体和硬化剂组成的可泵送的,水相容的,耐腐蚀的可硬化环氧树脂密封组合物,将环氧密封组合物放置在一排管和井筒之间的环空中 穿透处置区域并使环氧密封组合物硬化。

    Remedial well bore sealing methods and compositions
    28.
    发明授权
    Remedial well bore sealing methods and compositions 失效
    补漏井密封方法和组成

    公开(公告)号:US6012524A

    公开(公告)日:2000-01-11

    申请号:US60535

    申请日:1998-04-14

    IPC分类号: C09K8/512 E02D3/12 E21B33/13

    CPC分类号: C09K8/512 E02D3/12

    摘要: The present invention relates to improved methods and compositions for sealing subterranean zones penetrated by well bores to reduce their permeabilities and increase their compressive strengths. The methods basically comprise the steps of introducing an aqueous sealing composition into a subterranean zone comprising a polymerizable monomer, a polymerization initiator, a hardenable epoxide containing liquid and a hardening agent, placing the sealing composition by way of the well bore into the subterranean zone and allowing the sealing composition to polymerize and harden whereby the well bore is sealed.

    摘要翻译: 本发明涉及用于密封井眼穿透的地下区域的改进方法和组合物,以减少其渗透性并增加其抗压强度。 所述方法基本上包括以下步骤:将水性密封组合物引入包含可聚合单体,聚合引发剂,可硬化环氧化物的液体和硬化剂的地下区域,将密封组合物通过井眼放置到地下区域中, 允许密封组合物聚合和硬化,由此井眼被密封。

    Methods of modifying subterranean strata properties
    30.
    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。