发明名称 |
TIGHT GAS FORMATION PRESSURE DETERMINATION METHOD. |
摘要 |
A disclosed pressure determination method for tight gas formations includes: obtaining a downhole core sample of a tight gas formation penetrated by a borehole, the core sample having been sealed in a pressure-maintaining core vault during transport out of the borehole; determining an effective pore space of the core sample; deriving the number of moles of gas retrieved with the core sample; and combining the effective pore space and the number of moles together with a downhole temperature to get an estimated formation pressure. A system embodiment includes: a core vault that provides pressure -preserved transport of a core sample from a tight gas formation; a collection chamber that attaches to the core vault to measure volumes of fluids and gas from the core sample; and a processing unit that determines an estimated formation pressure based on said volumes, a downhole temperature, and an effective pore space of the core sample. |
申请公布号 |
MX2016008182(A) |
申请公布日期 |
2016.10.21 |
申请号 |
MX20160008182 |
申请日期 |
2015.01.13 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Luis F. QUINTERO;Donald WESTACOTT |
分类号 |
E21B49/02;E21B47/06 |
主分类号 |
E21B49/02 |
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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