Number | Name | Date | Kind |
---|---|---|---|
4382381 | Soeiinah | May 1983 | |
4384483 | Dellinger et al. | May 1983 | |
4695957 | Peltier | Sep 1987 | |
4739841 | Das | Apr 1988 | |
4760735 | Sheppard et al. | Aug 1988 | |
4791998 | Hempkins et al. | Dec 1988 |
Entry |
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Hollander et al., "The Drilling Advisor", IEEE 1983 Proceeding of Trends and Applications. |
C. A. Johancsik, D. B. Friesen, R. Dawson, "Torque and Drag in Directional Wells-Prediction and Measurement", Journal of Petroleum Technology, Jun. 1984--directed to a computer model for predicting torque and drag on a drillstring. |
R. Whitten, "Application of Side-Force Analysis and MWD to Reduce Drilling Costs", SPE/IADC 1987 Drilling Conference, Mar. 1987. |