J
Jack C. Penn
Researcher at Halliburton
Publications - 14
Citations - 192
Jack C. Penn is an academic researcher from Halliburton. The author has contributed to research in topics: Magnetic-core memory & Piston. The author has an hindex of 7, co-authored 14 publications receiving 192 citations.
Papers
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Patent
Self-contained downhole gauge system
Terry O. Anderson,J. Mark Richardson,Jack C. Penn,Michael J. Lynch,Billy W. White,Gilbert H. Forehand,Richard L. Duncan,Charles F. VanBerg,Stephen E. Tilghman,Ronald E. Dant,Charles D. Donaghe +10 more
TL;DR: In this article, a self-contained downhole apparatus for being lowered into an oil or gas well to internally record samples of at least one environmental condition comprises three body sections linearly and releasably interconnected.
Patent
Power-conserving self-contained downhole gauge system
TL;DR: In this article, a power-conserving apparatus for recording information in a well bore includes a plurality of independently energizable electrical circuits for receiving electrical signals from a transducer which senses an environmental condition, for processing the electrical signals, and for storing information related to the detected environmental condition.
Patent
Security apparatus and method for computers connected to telephone circuits
Jim B. Surjaatmadja,Jack C. Penn +1 more
TL;DR: In this paper, a security apparatus for interfacing a computer system with a telephone circuit includes a modem and a controller interfacing between the telephone circuit and a modem of the computer system.
Patent
Method of sampling and recording information pertaining to a physical condition detected in a well bore
TL;DR: In this paper, a physical condition in a well bore is sampled and information taken from the sample is recorded by a method of conserving electrical energy in performing such sampling and recording, which sequentially energizes and de-energizes a plurality of different electrical circuits within the downhole apparatus with which the physical condition is detected and in which the information is recorded.
Patent
Digital pressure controller
TL;DR: In this paper, a set point switch mechanism and a transducer are used by a computer to generate control signals for controlling a volume adjustment mechanism which adjusts the effective volume of the pressure vessel and adjusts the quantity of pressurizing fluid disposed in the vessel.