Patents Represented by Attorney Russell J. Egan

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  • Method of achieve zonal isolation
    Patent number: 5339901
    Abstract: Pairs of isolation members are mounted externally on casing pipe to define isolation zones. The zones are places into communication by bypass means external to the casing and penetrating the isolation members. Consolidation material is flowed through the bypass means to successively fill the isolated zones.
    Type: Grant
    Filed: April 26, 1993
    Date of Patent: August 23, 1994
    Assignee: Texaco Inc.
    Inventor: Howard L. McKinzie
  • Selective dual gravel pack
    Patent number: 5332039
    Abstract: A method and apparatus allowing sequential production from layers in a well uses a pair of vertically spaced production assemblies formed by packer seal assembly above a respective screen assembly. The production assemblies are spaced on a production pipe string to be substantially aligned with zones to be produced. Isolation tubing allows the lower zone to be produced to depletion when the tubing is then plugged, perforated and the upper zone produced.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: July 26, 1994
    Assignee: Texaco Inc.
    Inventors: Kurt P. Primeaux, John M. Guidry
  • Coke shield to protect vent orifice in fluid catalytic cracking direct-connected cyclone apparatus
    Patent number: 5320813
    Abstract: A coke shield is mounted on a reactor cyclone outlet tube spaced above the roof of the cyclone body so as to protect a vent orifice between the cyclone roof and outlet tube from clogging with debris. The coke shield is also provided with a plurality of apertures to prevent any pressure unbalance in the system.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: June 14, 1994
    Assignee: Texaco Inc.
    Inventor: Leonce F. Castagnos, Jr.
  • Volume meter system
    Patent number: 5315117
    Abstract: A system determines the relative amounts of phases in multiphase flow, typically the liquid (or gas) fraction of a stream in two-phase flow. More particularly, the system quickly and reliably determines the liquid (or gas) fraction of a flowing two-phase stream, such as a process stream commonly found in chemical processing or in petroleum production operations. The system yields accurate results regardless of the exact flow regime under which the two-phase stream is flowing.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: May 24, 1994
    Assignee: Texaco Inc.
    Inventors: Gregory J. Hatton, David A. Helms, Michael G. Durrett
  • Method and apparatus for automatically transferring and measuring wet steam between priority and secondary users
    Patent number: 5307833
    Abstract: A system by which a supplier of wet steam may allocate and measure the mass flow rate and quality of steam delivered to a demand user and one or more secondary users with the wet steam delivered to each user being measured for purposes of billing. Pressure regulator means between the demand customer and the secondary customers responsive to pressure changes caused by the amount of steam going to the demand customer. The demand customer thus being able to take from 0 to 100% of the steam generator output with the remaining steam being allocated to the secondary customers.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: May 3, 1994
    Assignee: Texaco Inc.
    Inventors: James R. Stoy, James L. G. Schrodt, Stephen S. Wheeler
  • Automatic choke
    Patent number: 5307872
    Abstract: An automatic choke has two piston-cylinder assemblies mounted within a housing having an inlet and an outlet. The piston-cylinder assemblies are connected in a closed hydraulic loop configuration. One piston-cylinder assembly is responsive to pressures at the inlet and the other piston-cylinder assembly controls valve at the outlet.
    Type: Grant
    Filed: April 8, 1993
    Date of Patent: May 3, 1994
    Assignee: Texaco Inc.
    Inventor: Jonathan C. Noyes
  • Sample holder for hydrous pyrolysis operations
    Patent number: 5307694
    Abstract: A sample holder for use in hydrous pyrolysis operations has a cylindrical member defining an axial throughbore with like discs of fluid permeable material at each end. One disc is fixed in the cylindrical member and the other removably attached for insertion of a sample into the holder. The holder has at least one end shaped so as to prevent sealing from occurring when the holder is placed in a test chamber.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: May 3, 1994
    Assignee: Texaco Inc.
    Inventors: David G. Nolte, Helen K. Haskin, Edwin L. Colling, Jr.
  • Method and apparatus for automatically transferring and measuring wet steam between priority and secondary users
    Patent number: 5307832
    Abstract: A system by which a supplier of wet steam may allocate and measure the mass flow rate and quality of steam delivered to a demand user and one or more secondary users with the wet steam delivered to each user being measured for purposes of billing. Pressure regulator means between the demand customer and the secondary customers responsive to pressure changes caused by the amount of steam going to the demand customer. The demand customer thus being able to take from 0 to 100% of the steam generator output with the remaining steam being allocated to the secondary customers.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: May 3, 1994
    Assignee: Texaco Inc.
    Inventors: James R. Stoy, James L. G. Schrodt, Stephen S. Wheeler
  • Conical variable area throttling device
    Patent number: 5291911
    Abstract: The subject device has a pair of conical segment members extending downstream from a central chamber and provided with means to relatively rotate them to proportion the flow of the non-predominant (volumetric-wise) phase of two-phase fluid therethrough. Relative positioning of the conical segment members forces the two-phase mixture streams to change velocities and mix the liquid phase with the gaseous phase prior to their encountering a flow-splitting device such as a tee junction.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Texaco Inc.
    Inventors: Alvaro Bernal, Jackie R. Boyles
  • Method and apparatus for automatically transferring and measuring wet steam between multiple constant demand users
    Patent number: 5285962
    Abstract: A system for automatically controlling the quantity and quality of steam to a plurality of constant demand customers has a steam generating source, and pressure regulator means and steam mass flow measurement means between each constant demand customer and the steam generating source.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: February 15, 1994
    Assignee: Texaco Inc.
    Inventors: James R. Stoy, James L. G. Schrodt, Stephen S. Wheeler
  • Means for inserting fiber optic probes into pressurized vessels
    Patent number: 5253321
    Abstract: A fiber optic probe mounting assembly has an inner assembly which receives an optical fiber cable and holds it in a sealed alignment. The inner assembly is sealingly received in an outer assembly which is provided with means for attachment to a pressure vessel.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: October 12, 1993
    Assignee: Texaco Inc.
    Inventors: Stephen L. Long, David L. Gebert, Frank M. Rexach, Gregory A. Winslow, Dale F. Brost
  • Device to equally distribute the vapor and liquid phases during wet steam flow through branch tee junctions
    Patent number: 5251662
    Abstract: Steam quality at both outlets of a T junction is maintained equal to that of the inlet by variably controlling the pipe cross sectional area according to the ratio of vapor flow rates through the respective outlet legs.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: October 12, 1993
    Assignee: Texaco Inc.
    Inventors: Mark T. Rubel, James R. Stoy
  • Method for estimating formation permeability from wireline logs using neural networks
    Patent number: 5251286
    Abstract: A method for determining rock formation permeability from wireline well logs utilizes neural networks. The neural networks provide consistency, accuracy and overall quality without bias to the calculations.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: October 5, 1993
    Assignee: Texaco, Inc.
    Inventors: Jacky M. Wiener, Robert F. Moll, John A. Rogers
  • Guideline system for underwater observation camera systems
    Patent number: 5249891
    Abstract: An apparatus for guiding camera systems and the like subsea from a platform has a running tool and a guideline holder. These components are detachably assembled and the first runs and retrieves the second which connects guidelines to some fixed subsea point.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: October 5, 1993
    Assignee: Texaco Inc.
    Inventor: William W. Pecue, II
  • Method and apparatus for controlling phase splitting at pipe junctions
    Patent number: 5250104
    Abstract: Separation of wet steam into its liquid and vapor phases is facilitated prior to encountering a junction. The separated phases are recombined as the steam exits the respective arms of the junction.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: October 5, 1993
    Assignee: Texaco Inc.
    Inventors: Eric L. Berger, James R. Stoy, Mark T. Rubel, James L. G. Schrodt
  • Temperature averaging data logger
    Patent number: 5249863
    Abstract: A temperature averaging data logger measures temperature at regular intervals and continually displays the average of the measured temperatures. Upon being reset, the data logger displays the number of days since the last reset, the instant temperature, and then commences its temperature averaging mode.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: October 5, 1993
    Assignee: Texaco Inc.
    Inventor: Winthrop K. Brown
  • Method and apparatus to determine wellhead level
    Patent number: 5244040
    Abstract: The angular misalignment of a wellhead is determined by lowering onto the wellhead an assembly having centering means depending from a base plate and level indicator means fixed on top of the plate. The assembly is suspended from the end of a drillstring which carries a level monitoring means.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: September 14, 1993
    Assignee: Texaco Inc.
    Inventor: William W. Pecue, II
  • Method and apparatus for remotely controlling a rotary valve or the like
    Patent number: 5232198
    Abstract: A rotary actuated valve choke or the like is remotely controlled by motor means fixedly mounted with respect to said valve to rotationally drive a stem thereof. Monitoring means measure the rotation of the motor and/or its associated drive train. The monitoring means convert the rotary motion to a more easily measurable linear motion to measure the valve setting and appropriately control the energization of the motor in response thereto.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: August 3, 1993
    Assignee: Texaco Inc.
    Inventors: Jackie R. Boyles, Joseph L. Porter, Albert P. Richter, Jr.
  • Apparatus for replacing discharge valves in air compressors
    Patent number: 5230128
    Abstract: A cage for properly positioning replacement valves and bores holds an assembly of a valve member and valve cone in proper relative position during replacement of the valve assembly in the bore of an air compressor.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: July 27, 1993
    Assignee: Texaco Inc.
    Inventor: Timothy R. Norman
  • Method and apparatus for eliminating unequal phase splitting at piping junctions
    Patent number: 5218985
    Abstract: The separation of wet steam into its liquid and vapor phases, prior to encountering a pipe junction, is facilitated. The liquid phase is then recombined by aspiration to effectively behave as a single phase vapor of homogeneous density at the point where the flow stream is divided by the junction.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: June 15, 1993
    Assignee: Texaco Inc.
    Inventors: Eric L. Berger, James R. Stoy, Mark T. Rubel, James L. G. Schrodt