CPC E21B 19/161 (2013.01) [E21B 19/165 (2013.01)] | 22 Claims |
1. A drilling machine, comprising:
a drill frame;
a wrench disposed on the drill frame and characterized by an open position and a closed position;
a carriage, movable along the drill frame from a location proximate the wrench to a location distal from the wrench;
a hydraulic circuit;
a pressure sensor in communication with the hydraulic circuit, configured to transmit a pressure signal;
a motor powered by the hydraulic circuit, configured to apply thrust to the carriage;
a processor, configured to receive the pressure signal and adjust the rate of fluid flow within the hydraulic circuit in response to a change in a pressure within the hydraulic circuit; and
in which the processor is characterized by a transition mode, wherein the rate of fluid flow is adjusted by the processor when the processor is in the transition mode and wherein the rate of fluid flow is not adjusted by the processor when the processor is not in the transition mode;
wherein the processor is configured to enter or exit the transition mode in response to the wrench moving to or from the closed position.
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