Halliburton Energy Services, Inc.

Ian D Mitchell

Dale E Jamison

Michael Thomas Pelletier

Mathew Dennis Rowe

Malcolm Upshall

Systems and methods for monitoring and characterizing well bores, subterranean formations, and/or fluids in a subterranean formation using well evaluation pills are provided. In one embodiment, the methods comprise: introducing a well evaluation pill into a portion of a well bore penetrating a portion of a subterranean formation; allowing the well evaluation pill to interact with one or more components in the portion of the subterranean formation; detecting a change in the composition or properties of the well evaluation pill; and determining the presence of one or more components in the portion of the subterranean formation based at least in part on the detected change in the composition or properties of the well evaluation pill.

Methods and systems for using a well evaluation pill to characterize subterranean formations and fluids

According to aspects of the present disclosure, a magnetic ranging system is described herein. The magnetic ranging system may comprise a downhole apparatus tool () that is sized to couple to a drill string (). The downhole apparatus () may be included, for example, near-bit within the bottom assembly (BHA). A transmitter () and a receiver () may be coupled to the downhole apparatus (). The system may also comprise a power management system () coupled to the downhole apparatus (). In certain embodiments, the power management system () may selectively provide power to the transmitter () from a first power source () or a second power source () based, at least in part, on an estimated distance to a target well.

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Spring, TX, United States of America

Ian D Mitchell