发明授权
US07730955B2 Grooved expandable recess shoe and pipe for deployment of mechanical positioning devices 有权
用于展开机械定位装置的凹槽可膨胀凹槽和管子

Grooved expandable recess shoe and pipe for deployment of mechanical positioning devices
摘要:
A first, expandable casing member, in an unexpanded state, is provided with a lower axial end that has a radially expanded upset or recess shoe and a locating profile. The first casing member is run into a wellbore, expanded, and secured in place within the wellbore. A second expandable casing member is then provided in an unexpanded state and disposed into the wellbore through the first casing member using a running tool. The second casing member is located with respect to the first casing member and expanded using an expansion member carried by the running tool.
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