Formation thermal measurement apparatus, methods, and systems

摘要

In some embodiments, an apparatus and a system, as well as a method and an article, may operate to activate a thermal source in a borehole to heat a portion of a geological formation proximate to the borehole, to move the thermal source or thermal receivers within the borehole (to reduce the distance between the location of heating by the thermal source and one or more of the thermal receivers), to receive signals from one or more of the thermal receivers, responsive to activation of the thermal source, wherein the moving serves to reduce a time between heating the location and the receiving, and processing the signals, distance information related to the moving, and time of the receiving to determine a thermal property of the geological formation. Additional apparatus, systems, and methods are described.

主权项

1. An apparatus, comprising:
a thermal source having a length and width, the length being at least twice the width; thermal receivers; a movement mechanism to move the thermal source or the thermal receivers; and a controller to activate the thermal source to heat a portion of a geological formation proximate to a borehole, to determine a distance of movement as a function of time of the thermal source or the thermal receivers relative to a heating location in the borehole via operation of the movement mechanism, and to receive signals provided by the thermal receivers, responsive to activation of the thermal source.