Patent ID: 9708884
Date: 2017-07-18
CPC Classifications: E21B

Claim:
1. An isolation member for use with an isolation member seat set in a tubular string within a well drilled into the earth's crust to isolate a pressure within a first portion of the well from a pressure in a second portion of the well, the isolation member comprising: a body of a solid material and having an interior chamber and an exterior surface to engage the isolation member seat; a battery received within the interior chamber of the body; an explosive charge including an explosive material received within the interior chamber of the body and coupled for detonation by the battery; a pressure sensor received within the interior chamber of the body in fluid communication with an aperture extending from the exterior surface of the body to the interior chamber of the body; and a circuit received within the interior chamber and conductively coupled to receive an electrical current from the battery, conductively coupled to receive a signal from the pressure sensor, and conductively coupled to generate, after a predetermined time interval, a detonating current to detonate the explosive charge in response to detecting a predetermined pressure sensed using the pressure sensor; wherein detonation of the explosive charge fragments the body.