Invention Grant
- Patent Title: Estimating formation temperature near a borehole and using same for estimating a property of the formation
- Patent Title (中): 估计井眼附近的地层温度,并用它来估算地层的性质
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Application No.: US11860646Application Date: 2007-09-25
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Publication No.: US07937999B2Publication Date: 2011-05-10
- Inventor: Martin Blanz , Thomas Kruspe
- Applicant: Martin Blanz , Thomas Kruspe
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: Cantor Colburn LLP
- Main IPC: E21B47/06
- IPC: E21B47/06 ; G01V9/00

Abstract:
Apparatus, methods and computer programs disclosed herein, in one aspect, estimate a temperature of a selected region of an earth formation using a virgin formation temperature of the earth formation, a downhole fluid temperature measured over time, an elapsed time between drilling proximate the selected region and making of a formation evaluation measurement of the selected region, an estimate of thermal conductivity of the earth formation, and a heat capacity of the earth formation. In another aspect, the apparatus, methods and computer programs utilize the estimated temperature and the formation evaluation measurement to estimate a property of interest of the selected region. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
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