发明名称 |
LOW EQUIVALENT CIRCULATION DENSITY SETTING TOOL |
摘要 |
A DOWNHOLE OILFIELD TOOL ASSEMBLY IS PROVIDED. THE TOOL ASSEMBLY COMPRISES A MANDREL, A VALVE ORIENTED TO BLOCK DOWNWARDS FLOW THROUGH THE MANDREL IN A CLOSED POSITION, A FIRST PISTON LOCATED ABOVE THE VALVE AND AT LEAST PARTLY AROUND AN OUTSIDE OF THE MANDREL. THE FIRST PISTON IS CONFIGURED TO DEVELOP MOTIVE FORCE FROM A PRESSURE DIFFERENTIAL BETWEEN AN INTERIOR OF THE MANDREL AND AN EXTERIOR OF THE DOWNHOLE OILFIELD TOOL ASSEMBLY. |
申请公布号 |
MY158660(A) |
申请公布日期 |
2016.10.31 |
申请号 |
MY2013PI02254 |
申请日期 |
2011.12.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WATSON, BROCK;MOELLER, DANIEL;MILLER, KEVIN J. |
分类号 |
E21B34/00 |
主分类号 |
E21B34/00 |
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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