Patents Assigned to Oil & Gas Consultants International Inc.
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Patent number: 6059031Abstract: A fluid powered downhole vibration tool used in a well bore having fluids under pressure. The tool includes a fluid powered motor located within the well bore, the fluid powered motor is in communication with the fluids under pressure. An actuator coupling is rotated by the fluid powered motor. A seismic mass is rotated in the well bore by the actuator coupler, the seismic mass engaging the well bore and causing vibration of the well bore.Type: GrantFiled: March 9, 1998Date of Patent: May 9, 2000Assignee: Oil & Gas Consultants International, Inc.Inventor: James Ford Brett
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Patent number: 5582247Abstract: Methods are provided for making use of an apparatus for generating vibrational energy in a borehole, the apparatus utilizes a mass and a rotary source for suspending the mass in a borehole or in casing in a borehole or in an instrument housing that may be positioned in an opened or cased borehole arranged to cause frictional contact with the surface of the rotating mass, the mass being rotatable about is rotational axis in one direction to cause it to backward whirl in the opposite direction, the centrifugal force of the whirling mass serving to generate vibrational energy that is used to obtain geophysical information as to the structure of the earth surrounding and adjacent to the borehole and for enhancing cementing and production enhancing techniques in oil or gas wells.Type: GrantFiled: January 11, 1996Date of Patent: December 10, 1996Assignee: Oil & Gas Consultants International, Inc.Inventors: James F. Brett, Joseph F. Goetz, Alan P. Roberts
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Patent number: 5515918Abstract: Methods are provided for making use of an apparatus for generating vibrational energy in a borehole, the apparatus utilizes a mass and a rotary source for suspending the mass in a borehole or in casing in a borehole or in an instrument housing that may be positioned in an opened or cased borehole arranged to cause frictional contact with the surface of the rotating mass, the mass being rotatable about is rotational axis in one direction to cause it to backward whirl in the opposite direction, the centrifugal force of the whirling mass serving to generate vibrational energy that is used to obtain geophysical information as to the structure of the earth surrounding and adjacent to the borehole and for enhancing cementing and production enhancing techniques in oil or gas wells.Type: GrantFiled: March 2, 1994Date of Patent: May 14, 1996Assignee: Oil & Gas Consultants International, Inc.Inventors: James F. Brett, Joseph F. Goetz, Alan P. Roberts
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Patent number: 5309405Abstract: Methods are provided for making use of an apparatus for generating vibrational energy in a borehole, the apparatus utilizes a mass and a rotary source for suspending the mass in a borehole or in casing in a borehole or in an instrument housing that may be positioned in an opened or cased borehole arranged to cause frictional contact with the surface of the rotating mass, the mass being rotatable about is rotational axis in one direction to cause it to backward whirl in the opposite direction, the centrifugal force of the whirling mass serving to generate vibrational energy that is used to obtain geophysical information as to the structure of the earth surrounding and adjacent to the borehole and for enhancing cementing and production enhancing techniques in oil or gas wells.Type: GrantFiled: October 26, 1992Date of Patent: May 3, 1994Assignee: Oil & Gas Consultants International Inc.Inventors: James F. Brett, Joseph F. Goetz, Alan P. Roberts
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Patent number: 5210381Abstract: An apparatus for generating vibrational energy in a borehole including an elongated mass having a surface of diameter less than the borehole, a rotary source for suspending the cylindrical mass in a borehole and a system to cause frictional contact between the surface of the mass and the borehole wall, the cylindrical mass being rotatable about its rotational axis in one direction to cause the mass to backward whirl in the opposite direction within the borehole, the cylindrical force of the whirling mass serving to generate vibrational energy in the borehole.Type: GrantFiled: May 18, 1992Date of Patent: May 11, 1993Assignee: Oil and Gas Consultants International, Inc.Inventor: James F. Brett
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Patent number: 5159160Abstract: A downhole seismic energy source for use in generating a seismic signal in a borehole including an elongated mass having a generally cylindrical surface of diameter less than the borehole, an actuator suspending the cylindrical mass in the borehole wherein the cylindrical surface thereof is in frictional contact with the borehole wall, the cylindrical mass being rotatable about its rotational axis to cause the mass to whirl within the borehole in the direction opposite the direction of the rotation of the mass, the mass cylindrical force serving to create a seismic energy signal.Type: GrantFiled: May 23, 1991Date of Patent: October 27, 1992Assignee: Oil & Gas Consultants International Inc.Inventor: James F. Brett