Aps Technology, Inc.

Andrew Roberts

David Cramer

Carl Allison Perry

A system, apparatus and method for monitoring a drilling operation includes receiving a signal via a first pair of antennas positioned on a surface of the earthen formation. The signal received by the first pair of antennas has a first signal characteristic. The method includes receiving the signal via a second pair of antennas positioned on the surface at a different location than that of the first pair of antennas. The signal received by the second pair of antennas has a second signal characteristic. The method includes identifying which of the first signal characteristic and the second signal characteristic of the signal received by the respective first and second pairs of antennas is a preferred signal characteristic. The method can include decoding the signal received by one of the first and second pairs of antennas that has received the signal with the preferred signal characteristic.

System, apparatus, and method for drilling

A system and method for pressure locking a downhole tool in position during a drilling operation includes rotating the drill string to drill a borehole. A fluid is pumped through a passage of a drill string in the downhole direction wherein fluid undergoes a pressure drop at the downhole end of the drill string such that fluid in the passage of the drill string is under higher pressure than the fluid outside the drill string. While fluid is flowing, an uphole portion of the downhole tool, such as a MWD tool, is exposed to the higher pressure fluid and a downhole portion of the downhole tool to the lower pressure fluid, thereby seating the downhole tool in a receptacle member attached to the drill string in the passage. Ceasing flow easily eliminates the locking force created by differential pressure allowing the tool to be retrieved.

Pressure locking device for downhole tools

A drilling system including a drill string, an EM telemetry assembly, and an electric contact assembly that defines an electrical connection with the drill string. The electric contact assembly permits a portion of the EM tool to slide along a portion of the drill string during drill string assembly.

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Meriden, CT, United States of America

Andrew Roberts