发明名称 |
Methods and apparatus related to an expandable port collar |
摘要 |
A method and apparatus for cementing a casing string in a wellbore includes installing an expandable port collar in the casing string; providing cement from the casing string through at least one aperture in a wall of the port collar to an annular area surrounding the port collar; and expanding the port collar to increase its inner diameter. |
申请公布号 |
GB201518634(D0) |
申请公布日期 |
2015.12.02 |
申请号 |
GB20150018634 |
申请日期 |
2015.10.21 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC |
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