Imaging fluid comprising a plant-based oil, and method for subsurface imaging in a borehole
AssigneeNovamera Inc.
InventorsSteve BUTT, Zijian LI, Prajit PREMRAJ
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Abstract
The present application pertains to an imaging fluid and a method for subsurface imaging, such as that of electromagnetic imaging, comprising introducing said imaging fluid into a borehole. The imaging fluid comprises a plant-based oil, a drilling fluid weighting agent and a saturated fatty acid, and has the properties of a dielectric permittivity of from 2 to 5 and a density greater than water. In one example, the imaging fluid is comprised of: canola oil or castor oil 40-75%, stearic acid 1-10%, and barium sulfate 15-45%, all percentages are weight by total weight of the imaging fluid.
Claims13
An imaging fluid comprising:
- a plant-based oil, a drilling fluid weighting agent and a saturated fatty acid.
An imaging fluid comprising:
- a plant-based oil and having the following characteristics:
- a dielectric permittivity of from 2 to 5;
- and a density greater than water.
A method for subsurface imaging in a borehole comprising:
- introducing an imaging fluid comprised of a plant-based oil, a drilling fluid weighting agent and a saturated fatty acid to the borehole and generating imaging signals from an imaging device submerged in the imaging fluid.
Dependencies are inferred from the claim text.