1
Robert W Crow, Ricky M Holloman, James B Pruden: Well production optimizing system. Otis Engineering Corporation, Johnson & Gibbs, May 1, 1990: US04921048 (54 worldwide citation)

A programmable system for controlling the operation of a plunger completion oil or gas production well to optimize production from the well. The controller operates one or more motor valves controlling the well in accordance with programmable values of off-time, on-time and exhaust-time. The control ...


2
Roger L Schultz, Ricky M Holloman: Acoustic system and method for performing operations in a well. Halliburton Company, E Harrison Gilbert III, Tracy W Druce, March 15, 1994: US05293937 (45 worldwide citation)

A system for performing operations in an oil or gas well (such as flow testing) can operate a plurality of downhole apparatus via one downhole acoustic receiver and one controller or via one downhole acoustic receiver and a respective controller for each downhole apparatus or via one acoustically ac ...


3
Carlos E Montgomery, Craig L Zitterich, Ricky M Holloman: Well testing apparatus. Otis Engineering Corporation, Albert W Carroll, December 13, 1988: US04790378 (40 worldwide citation)

Well testing apparatus for running on a single-conductor electric cable for gathering reservoir information, the apparatus utilizing two pressure gages and a valve, the valve being landable in a downhole receptacle and being operable to shut in the well or to open it for flow by tensioning or relaxi ...