发明名称 |
Fremgangsmåde og mekanismer til indsætning af en hul indretning i og udtrækning af den hule indretning fra et fremlöbsrör |
摘要 |
<p>A method to set a hollow device into an undersea flow pipe uses a flexible pig driven by a flow flowing into said flow pipe to displace a hollow device to a point where a stop means halts a displacement of said hollow device, thereby setting said hollow device into position. A method to retrieve a hollow device into an undersea flow pipe uses a flexible pig driven by a flow flowing into said flow pipe to retrieve said hollow device from a location where said hollow device operates halted by a stopping means.</p> |
申请公布号 |
DK1356187(T3) |
申请公布日期 |
2006.05.08 |
申请号 |
DK20010935846T |
申请日期 |
2001.05.29 |
申请人 |
PETROLEO BRASILEIRO S.A. PETROBRAS |
发明人 |
DE ALMEIDA, ALCINO RESENDE |
分类号 |
E21B23/08;B08B9/055;E21B23/00;E21B34/00;E21B34/06;F16L55/38;F16L55/46 |
主分类号 |
E21B23/08 |
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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