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AssigneeWWT North America Holdings, Inc.
InventorsNorman Bruce Moore, Rudolph Ernst Krueger, V, Philip Wayne Mock, Rudolph Ernst Krueger, IV
Estimating the term…
A method and system of adjusting near-bit weight on a drill bit in a drill string having a bottom hole assembly located at an end of a drill pipe, an anti-stall device near the bottom hole assembly, surface sensing and control equipment and a downhole-to-surface communication system, the anti-stall device measuring downhole performance criteria and evaluation of the measured downhole performance criteria, comprising the steps of measuring at least one downhole performance criteria by the anti-stall device; evaluating the measured downhole performance criteria in substantially real time by the anti-stall device; adjusting weight on the drill bit by the anti-stall device based on the evaluation by the anti-stall device; and communicating the adjustment to weight on the drill bit to the surface sensing and control equipment by the downhole-to-surface communication system for further adjustment of weight on the drill bit.
A method of adjusting near-bit weight on a drill bit in a drill string having a bottom hole assembly located at an end of a drill pipe, an anti-stall device near the bottom hole assembly, surface sensing and control equipment and a downhole-to-surface communication system, the anti-stall device having means for measuring downhole performance criteria and means for evaluation of the measured downhole performance criteria, comprising the steps of:
A method of communicating downhole drill string torque changes to surface drilling and control equipment comprising the steps of:
A drilling system for adjusting weight on a drill bit comprising:
Dependencies are inferred from the claim text.