发明名称 |
SYSTEM AND METHOD FOR RESERVOIR CHARACTERIZATION USING UNDERBALANCED DRILLING DATA |
摘要 |
<p>In an underbalanced drilling system and method, a change is induced in flowing bottom hole pressure in a wellbore. Data of the surface flow rate of effluent is then measured in response to the induced change. This measured data is obtained using a multi-phase flow meter before a separator of the underbalanced drilling system. Algorithms in computer software analyze the flowing bottomhole pressure and the measured surface flow rate data and determine both permeability and formation pressure for a portion of the wellbore in realtime during the underbalanced drilling operation. Ultimately, portion of the wellbore is characterized with the determined permeability and formation pressure.</p> |
申请公布号 |
WO2008106544(A3) |
申请公布日期 |
2008.10.23 |
申请号 |
WO2008US55176 |
申请日期 |
2008.02.27 |
申请人 |
PRECISION ENERGY SERVICES, INC.;STEWART, GEORGE |
发明人 |
STEWART, GEORGE |
分类号 |
E21B47/00 |
主分类号 |
E21B47/00 |
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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