Halliburton Energy Services, Inc.

Yan-Wah Michael Chia

Glenn Andrew Wilson

Burkay Donderici

Krishna M Ravi

A method for use with a subterranean well can include modeling multiple fluid types in an annulus formed between casing and an earth formation penetrated by a wellbore, inverting electromagnetic data acquired by sensors in the well, and selecting at least one of the fluid types based on the inverting. A system for use with a subterranean well can include multiple sensors longitudinally spaced apart along a casing in a wellbore, each of the sensors imparting electromagnetic impulses to a fluid present in an annulus formed between the casing and the wellbore, and each of the sensors providing observed data indicative of at least one physical property associated with the fluid.

Systems and methods for characterizing materials external of a casing

Systems and methods are provided for using opto-electrical networks to control downhole electronic devices. A system is provided that can include an optical transmitter. The optical transmitter can generate a first electrical signal associated with a radio frequency or a frequency bandwidth of the radio frequency. The optical transmitter can also convert the first electrical signal to an optical signal. The optical transmitter can further transmit the optical signal over a fiber-optic cable to an optical receiver deployed in a wellbore. The system can include the optical receiver. The optical receiver can convert the optical signal to a second electrical signal associated with the radio frequency or the frequency bandwidth. The optical receiver can also control an electronic device in the wellbore that is identified from the radio frequency or the frequency bandwidth of the second electrical signal.

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Singapore, Singapore

Yan-Wah Michael Chia