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US 2022/0333483 A1Published application
Integrated downhole system with plural telemetry subsystems
AssigneeEvolution Engineering Inc.
InventorsAaron W. LOGAN, David A. SWITZER, Jili LIU, Justin C. LOGAN, Mingdong XU
Life of this patent
Estimating the term…
Abstract
A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.
Claims22
(canceled)
A drilling method comprising:
- advancing a drill string while pumping drilling fluid through a bore of the drill string during active drilling periods separated by flow-off periods during which the flow of drilling fluid through the drill string is discontinued;
- communicating telemetry data from a downhole system to surface equipment by one or more of an electromagnetic (EM) telemetry system and a mud pulse (MP) telemetry system;
- and
- detecting the onset of one of the flow-off periods and in response to detecting the onset of one of the flow-off periods reducing delivery of electrical power to the MP telemetry system.
1 more element
Dependencies are inferred from the claim text.