85117728
Aug 27, 2010
Downhole oilfield tool for downhole conveyance and setting of equipment, namely, well packers and bridge plugs adapted to isolate the flow of fluids to or from geologic formations in oil and gas wells, and which can be actuated upon receipt of a transmitted electric current or signal
MachineryDownhole oilfield tool for downhole conveyance and setting of equipment, namely, downhole survey and measurement equipment, flow regulators used in oil and gas wells, and which can be actuated upon receipt of a transmitted electric current or signal
Electrical and Scientific Apparatus