- 专利标题: METHODS FOR THE IDENTIFICATION OF BUBBLE POINT PRESSURE
- 专利标题(中): 泡点压力识别方法
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申请号: US12016052申请日: 2008-01-17
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公开(公告)号: US20090187346A1公开(公告)日: 2009-07-23
- 发明人: Baoyan Li
- 申请人: Baoyan Li
- 专利权人: Baker Hughes Incorporated
- 当前专利权人: Baker Hughes Incorporated
- 主分类号: E21B49/10
- IPC分类号: E21B49/10
摘要:
A method includes acquiring formation fluid sample information including pressure, volume, and temperature. Monotonic formation fluid information is extracted from the formation fluid sample information and a pressure, volume, temperature information set is constructed. A curvature sequence is estimated using a first partial derivative and a second partial derivative of pressure with respect to volume. A first maxima is estimated from the curvature sequence, and the formation fluid property is estimated using the estimated first maxima. A method may include a volume acceleration sequence estimated using a first partial derivative and a second partial derivative of the volume with respect to pressure. A first maxima is estimated from the volume acceleration sequence, and the formation fluid property is estimated at least in part by using the estimated first maxima. A method may include establishing a first linear regression model and predicting a confidence interval.
公开/授权文献
- US07774141B2 Methods for the identification of bubble point pressure 公开/授权日:2010-08-10