| 摘要 |
<p>A wireless instrument unit 1 including a sensor and actuator package 10 located outside of a tubing section 94 is in wireless communication with, and may be inductively powered by, an electromagnetic transceiver 9 inside a non-magnetic portion of the wellbore conduit 94 and mounted on an electric-line logging cable 97 attached to a downhole interface unit 101 for controlling communication to the apparatus. The sensors and actuators may alternatively have their own power source.</p> |
