发明名称 |
Método e sistema para expandir radialmente um elemento tobular em um furo de poço. |
摘要 |
<p>A method is provided of radially expanding a tubular element (56) in a well-bore using an expander located in the tubular element, the expander (40) comprising an expansion member (48) and a plurality of segments (50) spaced in circumferential direction around the expansion member, the segments being movable between a radially retracted position and a radially expanded position by axial movement of the expansion member relative to the segments. The method includes a plurality of successive expansion cycles, wherein each expansion cycle comprises the steps of: (a) moving the expander (40) in axially forward direction through the tubular element (56) whereby the segments (56) are in the radially retracted position; and (b) radially expanding the tubular element by moving the segments to the radially expanded position by axially moving the expansion member relative to the segments.</p> |
申请公布号 |
BRPI0923814(A2) |
申请公布日期 |
2015.07.14 |
申请号 |
BR2009PI23814 |
申请日期 |
2009.12.22 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V |
发明人 |
JOHANNES LOUIS LEONARDUS HESSELS;SERGE MATHIEU ROGGEBAND;ANTONIUS LEONARDUS MARIA WUBBEN;DJURRE HANS ZIJSLING |
分类号 |
E21B43/10;E21B23/04 |
主分类号 |
E21B43/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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