METHOD AND APPARATUS FOR USE IN WELL ABANDONMENT
    1.
    发明公开
    METHOD AND APPARATUS FOR USE IN WELL ABANDONMENT 有权
    VERFAHREN UND VORRICHTUNG ZUR VERWENDUNGFÜRBRUNNENAUFLASSUNGEN

    公开(公告)号:EP2576968A1

    公开(公告)日:2013-04-10

    申请号:EP11721786.9

    申请日:2011-05-27

    申请人: Bisn Tec Ltd

    摘要: Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.

    摘要翻译: 提供以共晶合金塞(1)和展开加热器(10)的形式的装置。 插头(1)和展开加热(10)设置有用于将展开加热器(10)可释放地保持在插头(1)中的空腔(4)内的装置(5,13)。 保持装置的性质使得一旦塞子(1)固定在井中,加热器(10)可以在没有塞子(1)的情况下被回收。 提供也可接收在插头(1)的空腔(4)内的提取加热器(20)以再熔融共晶合金,从而能够从孔中提取塞子。 通过所提供的设备给出的控制,可以实现堵塞废弃井的各种方法。