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.

Abstract: An apparatus for ground penetrating radar includes an antenna disposed within a sleeve. The sleeve includes a radar-absorbing material for attenuating the amplitude of incident radar waves. The sleeve has an aperture for permitting radar waves to pass into and out of the sleeve. A method for surveying a formation using ground penetrating radar includes rotating the antenna and sleeve while keeping the antenna and sleeve longitudinally stationary, and recording data including the amplitude of waves received by the antenna and the position of the aperture when such waves are received.

Abstract: A method for mining narrow vein deposit of ore, the narrow vein deposit having a hanging wall and a foot wall, the method comprising: drilling a pilot hole into the narrow vein deposit along a path substantially centrally between the hanging wall and the foot wall to a depth within the vein; following the pilot hole with a larger diameter drilling assembly to fragment the ore into drill cuttings; circulating the drill cuttings to a wellhead; and collecting the drill cuttings for processing to recover the ore therefrom.

Abstract: A method for mining narrow vein deposit of ore, the narrow vein deposit having a hanging wall and a foot wall, the method comprising: drilling a pilot hole into the narrow vein deposit along a path substantially centrally between the hanging wall and the foot wall to a depth within the vein; following the pilot hole with a larger diameter drilling assembly to fragment the ore into drill cuttings; circulating the drill cuttings to a wellhead; and collecting the drill cuttings for processing to recover the ore therefrom.

Abstract: A method for mining narrow vein deposit of ore, the narrow vein deposit having a hanging wall and a foot wall, the method comprising: drilling a pilot hole into the narrow vein deposit along a path substantially centrally between the hanging wall and the foot wall to a depth within the vein; following the pilot hole with a larger diameter drilling assembly to fragment the ore into drill cuttings; circulating the drill cuttings to a wellhead; and collecting the drill cuttings for processing to recover the ore therefrom.

Abstract: An apparatus for ground penetrating radar includes an antenna disposed within a sleeve. The sleeve includes a radar-absorbing material for attenuating the amplitude of incident radar waves. The sleeve has an aperture for permitting radar waves ? pass into and out of the sleeve. A method for surveying a formation using ground penetrating radar includes rotating the antenna and sleeve while keeping the antenna and sleeve longitudinally stationary, and recording data including the amplitude of waves received by the antenna and the position of the aperture when such waves are received.

Abstract: A method for mining narrow vein deposit of ore, the narrow vein deposit having a hanging wall and a foot wall, the method comprising: drilling a pilot hole into the narrow vein deposit along a path substantially centrally between the hanging wall and the foot wall to a depth within the vein; following the pilot hole with a larger diameter drilling assembly to fragment the ore into drill cuttings; circulating the drill cuttings to a wellhead; and collecting the drill cuttings for processing to recover the ore therefrom.