Numerical control unit for wellbore drilling

Details Numerical control unit for wellbore drilling Numerical control unit for wellbore drilling

1998-08-21

2000-08-08

McElheny, Jr., Donald E.

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

G06F 1900

Patent

active

061014443

ABSTRACT:
A numerical control unit and method is provided for determining a change in a positional setting in a downhole tool used to drill a wellbore, the numerical control unit comprising a plurality of rules in an IF . . . THEN format based on the current position of the wellbore and a preferred position of the wellbore.

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Goldman, Petroleum Engineer International, Artificial Intelligence Applications Enhance Directional Control, Feb. 1993, pp. 15-22.
Patten et al., Automatic Loop Steering For Directional Drilling, PD-vol. 56, Drilling Technology--1994, pp. 47-51.
Neubert, M. and Heisig, G., "Advanced Trajectory Simulation of Directional Wellbores", pp. 45-52.
Heisig, G., Oppelt, J., Neubert, M. And Donati, F., "Closed-Loop Guided Directional Drilling Fundamentals, Concepts and Simulations" pp. 35-40.

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