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    • 1. 发明授权
    • Methods and apparatus for subsea well intervention and subsea wellhead retrieval
    • 海底井干预和海底井口检索的方法和装置
    • US08307903B2
    • 2012-11-13
    • US12490508
    • 2009-06-24
    • Thomas M. RedlingerAndrew AntoineMy LeRichard J. Segura
    • Thomas M. RedlingerAndrew AntoineMy LeRichard J. Segura
    • E21B29/12E21B23/00
    • E21B23/00E21B29/005E21B29/12E21B33/035E21B47/0001
    • The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly. In another aspect, an apparatus for use in a subsea well is provided. In a further aspect, a method of cutting a casing string in a subsea well is provided.
    • 本发明一般涉及用于海底井干预操作的方法和装置,包括从海底井检索井口。 在一个方面,提供了一种在海底井中执行操作的方法。 该方法包括将工具定位在靠近海底井口的步骤。 该工具具有至少一个夹紧构件,并且该工具附接到井下组件。 该方法还包括通过将至少一个把手构件与海底井口上的轮廓相接合来将工具夹紧到海底井口的步骤。 该方法还包括向工具施加向上的力的步骤,从而增强把手构件与海底井口上的轮廓之间的夹紧。 另外,该方法包括通过利用井下组件在海底井中进行操作的步骤。 另一方面,提供一种用于海底井的装置。 在另一方面,提供了一种在海底井中切割套管柱的方法。
    • 2. 发明申请
    • METHODS AND APPARATUS FOR SUBSEA WELL INTERVENTION AND SUBSEA WELLHEAD RETRIEVAL
    • 方法和装置,用于替代干细胞移植和后代检查
    • US20100326665A1
    • 2010-12-30
    • US12490508
    • 2009-06-24
    • Thomas M. RedlingerAndrew AntoineMy LeRichard J. Segura
    • Thomas M. RedlingerAndrew AntoineMy LeRichard J. Segura
    • E21B41/04E21B29/12
    • E21B23/00E21B29/005E21B29/12E21B33/035E21B47/0001
    • The present invention generally relates to methods and apparatus for subsea well intervention operations, including retrieval of a wellhead from a subsea well. In one aspect, a method of performing an operation in a subsea well is provided. The method comprising the step of positioning a tool proximate a subsea wellhead. The tool has at least one grip member and the tool is attached to a downhole assembly. The method also comprising the step of clamping the tool to the subsea wellhead by moving the at least one grip member into engagement with a profile on the subsea wellhead. The method further comprising the step of applying an upward force to the tool thereby enhancing the grip between the grip member and the profile on the subsea wellhead. Additionally, the method comprising the step of performing the operation in the subsea well by utilizing the downhole assembly. In another aspect, an apparatus for use in a subsea well is provided. In a further aspect, a method of cutting a casing string in a subsea well is provided.
    • 本发明一般涉及用于海底井干预操作的方法和装置,包括从海底井检索井口。 在一个方面,提供了一种在海底井中执行操作的方法。 该方法包括将工具定位在靠近海底井口的步骤。 该工具具有至少一个夹紧构件,并且该工具附接到井下组件。 该方法还包括通过将至少一个把手构件与海底井口上的轮廓相接合来将工具夹紧到海底井口的步骤。 该方法还包括向工具施加向上的力的步骤,从而增强把手构件与海底井口上的轮廓之间的夹紧。 另外,该方法包括通过利用井下组件在海底井中进行操作的步骤。 另一方面,提供一种用于海底井的装置。 在另一方面,提供了一种在海底井中切割套管柱的方法。