发明名称 |
SHOE FOR A TUBULAR ELEMENT IN A WELLBORE |
摘要 |
<p>A well casing or liner shoe (10) comprises a partially of fully openable central fluid channel (13) which is connected to at least one small width nozzle (46) and an additional large width fluid outlet (49), which is closed by a thin walled closure device arranged to open at a selected fluid overpressure in the fluid channel (13), and which has a flow area larger than each nozzle (46) to permit fluid circulation when the nozzles (46) are clogged and clearance of clogging debris through the additional large width additional fluid outlet (49).</p> |
申请公布号 |
WO2015197703(A1) |
申请公布日期 |
2015.12.30 |
申请号 |
WO2015EP64273 |
申请日期 |
2015.06.24 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;SHELL OIL COMPANY |
发明人 |
STAM, WALTER;WUBBEN, ANTONIUS LEONARDUS MARIA;ZIJSLING, DJURRE HANS;VAN DER ZEE, TINO WALTER |
分类号 |
E21B34/06;E21B10/26;E21B10/60;E21B17/14;E21B29/00;E21B33/12 |
主分类号 |
E21B34/06 |
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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