Patents by Inventor Joel J. Hebert

Joel J. Hebert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for planning and performing a pressure survey
    Patent number: 6415231
    Abstract: The present invention relates in general to a method and apparatus for planning a pressure survey, and in particular, a method and apparatus for using a pressure survey tool so that the user may predict in advance the number of pressure tests needed to be performed in a pressure survey such that the results fall within a desired standard deviation of the pressure gradient. The present invention further relates in general to a method and apparatus for performing a pressure survey, and in particular, a process of measuring pressure gradient and standard deviation thereof for downhole fluid bearing formations using information collected from pressure survey apparatus such that the requisite amount of information is collected to ensure the measurements actually received are within the desired standard deviation of the pressure gradient.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: July 2, 2002
    Inventor: Joel J. Hebert
  • Apparatus for hard rock sidewall coring a borehole
    Patent number: 4714119
    Abstract: A core drilling mechanism in an elongate housing is rotated from a vertical storage position to a horizontal operable position. This permits the transport downhole of a drilling mechanism of sufficient longitudinal dimension to drill a core sample of substantial length perpendicular to the borehole sidewall. A fixed slotted plate and hydraulically actuated rotatable drive plate control the motion of the drilling mechanism, which is stored vertically for descent and ascent, and rotated 90-degrees and moved outward for core drilling. After a core sample is drilled, the drilling mechanism is tilted upward to break off the core, and then returned to its vertical storage position.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: December 22, 1987
    Assignee: Schlumberger Technology Corporation
    Inventors: Joel J. Hebert, Jo-Yu Chuang
  • Marine seismic cable handler
    Patent number: 4314363
    Abstract: A hydraulically-powered yo-yo reel for handling a marine seismic cable in shallow water. At the beginning of a recording episode, a partially reeled-in seismic cable is released to drift to a standstill behind a ship. Data are recorded. The cable is then accelerated to match the ships's velocity. Following the initial acceleration, the cable is superaccelerated as it is partially reeled in. A microprocessor adjusts a dwell time between recording episodes to compensate for small variations in the ship's velocity.
    Type: Grant
    Filed: June 25, 1980
    Date of Patent: February 2, 1982
    Assignee: Western Geophysical Company of America
    Inventors: Ben B. Thigpen, Joel J. Hebert