Patents by Inventor Bruce Marion

Bruce Marion 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).

  • Signal processing to enable utilization of a rig reference sensor with a drill bit seismic source
    Patent number: 5191557
    Abstract: An apparatus (10) for providing while drilling information on a subterranean geologic formation (28) includes a drilling rig (12) and a rotary drill bit (18) attached to the drilling rig (12) for providing seismic waves as it drills in the earth (16). Geophones (20) are spaced from the rotary drill bit (18) in the earth (16) and receive in direct seismic wave paths (26) and seismic wave paths (30) reflected from the subterranean geologic formation (28) the seismic waves provided by the drill bit (18). A reference sensor (24) is located on the drilling rig (12). The seismic signals sensed by the reference sensor (24) and by the geophones (20) are cross-correlated to separate the drill bit generated signals from interference signals by combining the reference signals and the signals received by the geophones (20).
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: March 2, 1993
    Assignee: Gas Research Institute
    Inventors: James Rector, Bruce Marion, Bernard Widrow, Iraj A. Salehi
  • Signal processing to enable utilization of a rig reference sensor with a drill bit seismic source
    Patent number: 5050130
    Abstract: An apparatus (10) for providing while drilling information on a subterranean geologic formation (28) includes a drilling rig (12) and a rotary drill bit (18) attached to the drilling rig (12) for providing seismic waves as it drills in the earth (16). Geophones (20) are spaced from the rotary drill bit (18) in the earth (16) and receive indirect seismic wave paths (26) and seismic wave paths (30) reflected from the subterranean geologic formation (28) the seismic waves provided by the drill bit (18). A reference sensor (24) is located on the drilling rig (12). The seismic signals sensed by the reference sensor (24) and by the geophones (20) are cross-correlated to separate the drill bit generated signals from interference signals by combining the reference signals and the signals received by the geophones (20).
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: September 17, 1991
    Assignee: Gas Research Institute
    Inventors: James Rector, Bruce Marion, Bernard Widrow, Iraj A. Salehi
  • Signal processing to enable utilization of a rig reference sensor with a drill bit seismic source
    Patent number: 4926391
    Abstract: An apparatus (10) for providing while drilling information on a subterranean geologic formation (28) includes a drilling rig (12) and a rotary drill bit (18) attached to the drilling rig (12) for providing seismic waves as it drills in the earth (16). Geophones (20) are spaced from the rotary drill bit (18) in the earth (16) and receive in direct seismic wave paths (26) and seismic wave paths (30) reflected from the subterranean geologic formation (28) the seismic waves provided by the drill bit (18). A reference sensor (24) is located on the drilling rig (12). The seismic signals sensed by the reference sensor (24) and by the geophones (20) are cross-correlated to separate the drill bit generated signals from interference signals by combining the reference signals and the signals received by the geophones (20).
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: May 15, 1990
    Assignee: Gas Research Institute, Inc.
    Inventors: James Rector, Bruce Marion, Bernard Widrow, Iraj A. Salehi