CPC E21B 47/12 (2013.01) [E21B 17/028 (2013.01); G01V 11/002 (2013.01); H04B 3/36 (2013.01)] | 15 Claims |
1. A system comprising:
a surface control unit;
a first downhole tubular comprising a control module, wherein the control module comprises a controller, a first transistor, and a second transistor;
a control line comprising a single conductor, the control line coupled between the surface control unit and the controller;
a second downhole tubular including a first downhole well tool and first electronics, the first electronics of the second downhole tubular coupled to the first downhole tubular via a first connector, wherein the first connector includes a first A-conductor, a first B-conductor, and a first C-conductor, wherein the controller is configured to control commands to the first connector, and wherein actuation of the first downhole well tool includes,
based on a first command, selection of, with the controller, the first A-conductor and application of a first current in a first direction on the first A-conductor via the first transistor,
actuation of, via the first current, the first downhole well tool, and
return of the first current in a second direction on the first B-conductor via the second transistor;
a third downhole tubular comprising a second downhole well tool and second electronics, the second electronics of the third downhole tubular coupled to the second downhole tubular via a second connector, wherein the second connector includes a second A-conductor electrically coupled with the first A-conductor, a second B-conductor electrically coupled with the first B-conductor, and a second C-conductor electrically coupled with the first C-conductor, and wherein actuation of the second downhole well tool includes,
transmission of a second command from the surface control unit to the control module via the single conductor,
based on the second command, application of a second current in the first direction on the first B-conductor via the second transistor,
actuation of, via the second current, the second downhole well tool, and
return of the second current in the second direction via the first C-conductor and the second C-conductor or via the first A-conductor and the second A-conductor.
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