Patent ID: 7475732

Claim:
A method of using a downhole deployment valve (DDV) in a wellbore extending to a first depth, the method comprising: assembling the DDV as part of a tubular string, the DDV comprising: a valve member movable between an open and a closed position; an axial bore therethrough in communication with an axial bore of the tubular string when the valve member is in the open position, the valve member substantially sealing a first portion of the tubular string bore from a second portion of the tubular string bore when the valve member is in the closed position; and a sensor configured to sense a parameter of the wellbore or a parameter of a formation; running the tubular string into the wellbore; running a drill string through the tubular string bore and the DDV bore, the drill string comprising a drill bit located at an axial end thereof; drilling the wellbore to a second depth using the drill string and the drill bit; sensing the wellbore or formation parameter with the sensor while drilling the wellbore to the second depth; and adjusting a trajectory of the drill string while drilling the wellbore to the second depth.