Abstract: A conduit is provided for transmitting both electrical power and pressured hydraulic fluid from the surface to a point in a subterranean well. The conduit comprises an outer housing formed of steel or other high tensile strength material and one or more insulated wires of copper or similar low tensile strength, highly conductive metal which are run through the outer housing. Supports are provided between the external surfaces of the insulated wires and the internal wall of the housing to frictionally anchor the insulated wires to the housing. The supports also define fluid passages therethrough so that pressured fluid may be transmitted through the bore of the housing. So that the wires are gravitationally stabilized within the outer housing, the average density of the supports and the pressured fluid is approximately equal to the average density of the insulated wires.

Abstract: Production fluid from a well and emulsion breaking chemicals enter a settling vessel where much of the fluid separates into distinct levels by gravity with water at the bottom, an oil-water emulsion above the water, oil-with-emulsion above the emulsion, and gas above the oil-with-emulsion. The oil with the emulsion has two to five percent emulsion in it. The oil-with-emulsion flows over a weir into a weir box and then into the inlet of a centrifugal, pitot separator which breaks the emulsion contained in the oil by the action of a centrifugal force field to produce distinct streams of oil and water. The water feeds back into the vessel and the oil goes to storage. In the event that the emulsion feed to the separator is insufficient, the oil-with-emulsion level in the weir box falls and oil recirculates from the separator into the vessel to raise the level of oil-with-emulsion. Water leaves the vessel as required to maintain an appropriate water-emulsion interface level.