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    • 11. 发明授权
    • Whipstock assembly for forming a window within a wellbore casing
    • 用于在井眼套管内形成窗户的生产线组件
    • US08245774B2
    • 2012-08-21
    • US12099659
    • 2008-04-08
    • Thurman B. CarterThomas M. RedlingerDavid J. Brunnert
    • Thurman B. CarterThomas M. RedlingerDavid J. Brunnert
    • E21B29/12
    • E21B17/1007E21B7/061
    • The present invention discloses a whipstock assembly for use in forming a lateral borehole from a parent wellbore. The whipstock assembly comprises a body and a deflection member above the body. The deflection member includes a concave portion for deflecting a milling bit during a milling operation. Disposed on a perforation plate portion of the concave portion is a raised surface feature. The raised surface supports a milling bit above the perforation plate portion during a milling operation. This, in turn, substantially prevents frictional contact between the milling bits and the perforation plate portion during a milling operation. The present invention also provides a novel method for manufacturing a whipstock in which a cavity portion is formed behind the perforation plate by milling out the backside of the deflection member and then joining a second back cover member to the whipstock body to complete the assembly.
    • 本发明公开了一种用于从母井孔形成横向钻孔的造斜器组件。 造斜器组件包括主体和身体上方的偏转构件。 偏转构件包括用于在铣削操作期间偏转铣刀的凹部。 设置在凹部的穿孔板部分上的是凸起表面特征。 在铣削操作期间,凸起表面支撑穿孔板部分上方的铣刀头。 这又在铣削操作期间基本上防止了铣头和穿孔板部分之间的摩擦接触。 本发明还提供了一种制造造斜器的新方法,其中通过铣削偏转构件的后侧然后将第二后盖构件连接到造斜器本体来完成组件,在穿孔板后面形成空腔部分。
    • 12. 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。
    • 13. 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。