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US Patent 5737277 - Method for computing borehole geometry from ultrasonic pulse echo data
US Patent Issued on April 7, 1998
Estimated Patent Expiration Date:
October 25, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
October 25, 2016Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA method for using geometrical data to determine characteristics of a wellbore penetrating a subterranean formation is disclosed. The method involves converting data obtained from acoustic well logging into cartesian coordinates and solving a general quadratic equation by a least squares fit to an elliptical or circular model. More specific information, such as tensor strain and formation compaction along the wellbore may then be obtained from the geometrical data.Other References
| InventorAssigneeApplicationNo. 735982 filed on 10/25/1996US Classes:367/27, Time interval measurement367/25, Well logging367/73, Synthetic seismograms and models702/11Formation characteristicField of Search367/25, Well logging367/27, Time interval measurement367/73Synthetic seismograms and modelsExaminersPrimary: Moskowitz, NelsonAttorney, Agent or FirmUS Patent References5638337Method for computing borehole geometry from ultrasonic pulse echo dataIssued on: 06/10/1997 Inventor: Priest International ClassG01V 001/40 |
