发明名称 |
PISTON ASSEMBLY TO REDUCE ANNULAR PRESSURE BUILDUP |
摘要 |
A system for preventing annular pressure buildup comprising: a wellbore; two or more annuli located within the wellbore; a piston assembly located adjacent to a wellhead of the wellbore; and a pipe system that connects the two or more annuli in parallel to the piston assembly, wherein when the amount of pressure in the pipe system exceeds a predetermined amount, then a piston of the piston assembly moves whereby the movement reduces the amount of pressure in the two or more annuli. |
申请公布号 |
WO2016114798(A1) |
申请公布日期 |
2016.07.21 |
申请号 |
WO2015US11855 |
申请日期 |
2015.01.16 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
GAHLAWAT, RAVINDER;PANGU, GANESH, S. |
分类号 |
E21B7/12;E21B33/035 |
主分类号 |
E21B7/12 |
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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