CPC E21B 47/06 (2013.01) [E21B 34/066 (2013.01); E21B 47/07 (2020.05); E21B 47/10 (2013.01); E21B 2200/04 (2020.05)] | 8 Claims |
1. A downhole tool comprising:
a tool body having a bore;
a bore isolation valve disposed in the tool body;
a sensor configured to receive to a downlink signal, the sensor coupled to the tool body;
an annular pressure sensor coupled to the tool body and configured to determine an annular pressure;
a valve actuation mechanism coupled to the bore isolation valve, the valve actuation mechanism responsive to the downlink signal;
a pressure relief mechanism disposed in the tool body and configured to provide a negative pressure pulse signal indicative of the annular pressure by venting fluid from the bore of the tool body to outside the tool body, the pressure relief mechanism responsive to the downlink signal; and
a battery disposed on the tool body for powering the valve actuation mechanism and the pressure relief mechanism.
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