1
P Henrik Wallman: Minimum time, optimizing and stabilizing multivariable control method and system using a constraint associated control code. Chevron Research Company, S R LaPaglia, E J Keeling, H D Messner, April 5, 1988: US04736316 (44 worldwide citation)

In accordance with the present invention, a constraint dependent control method and system for a large scale refinery, chemical process or the like, is provided that allows on-line optimization of one and preferably two plant inputs without need for optimal set points, through iterative generation o ...


2
Leo Rosenthal, Leonard M Isaacson, John A Ziebarth: Computer-aided graphics system including a computerized material control system and method of using same. Chevron Research Company, R L Freeland Jr, H D Messner, January 1, 1980: US04181954 (43 worldwide citation)

Description is hereinafter had to a digital computer-aided graphics system for producing in a plane having two-dimensional coordinate axes a planar representation of a three-dimensional pipeline described in easy-to-understand coded input format as a series of workpoints paired into overlapping sets ...


3
Bernard A Fries: Shielded container. Chevron Research Company, R L Freeland Jr, H D Messner, March 28, 1978: US04081688 (33 worldwide citation)

A shielded container for transportation of radioactive materials (RAM's) is disclosed in which leakage from the container is minimized due to constructional features including, inter alia, forming the container of a series of telescoping members having sliding fits between adjacent side walls and ha ...


4
Richard A Spellmann: Method of diagnosing errors off-line in pipe specification files of a computer-aided graphics system. Chevron Research Company, Edward J Keeling, H D Messner, October 5, 1982: US04353117 (31 worldwide citation)

A method of updating pipe specification files of a computer-dominated piping graphics system, off-line. Interactive cross-checking of new data increases likelihood of effective, later batch operations.


5
Earl J Brown, Swan A Sie: Automatic system and method for testing marine streamers of seismic exploration systems. Chevron Research Company, R L Freeland Jr, H D Messner, November 11, 1980: US04233677 (27 worldwide citation)

In accordance with the present invention, a marine streamer test system and method (MARSTEST) is disclosed for testing field-worthiness of hydrophone sections within the streamer under both passive and dynamic operating conditions. With regard to a passive operating state, five (5) test parameters a ...


6
William J Ostrander: Method for interpreting events of seismic records to yield indications of gaseous hydrocarbons. Chevron Research Company, D A Newell, Edward J Keeling, H D Messner, February 16, 1982: US04316267 (27 worldwide citation)

The present invention indicates that gas-containing strata of an earth formation have low Poisson's ratios and that the acoustic contrast with the overburden rock has a surprising effect as a function of the angle of incidence on a seismic wave associated with an array of sources and detectors: viz. ...


7
Oke A Fredriksson, Elmer L Thomas: Synthesizer for testing elements of a geophysical data acquisition system. Chevron Research Company, R L Freeland Jr, H D Messner, August 2, 1977: US04039806 (25 worldwide citation)

This disclosure relates to a non-recursive digital synthesizer for producing a surprisingly accurate synthesized sinusoid suitable for testing elements of a geophysical data acquisition system in either a laboratory or a field environment. In accordance with the present invention, [(C/2)+1]-discrete ...


8
Frank L Campbell, Dean C Barnum, William C Corea: Means and method for facilitating measurements while coring. Chevron Research Company, H D Messner, Edward J Keeling, July 22, 1986: US04601354 (24 worldwide citation)

In accordance with the present invention, rotation of the inner barrel relative of the axis of symmetry of the core barrel (indicative of core twist off or core sand erosion during coring operations) is detected by a novel sensor combination. The sensor includes a reed switch mechanically imbedded i ...


9
William J Ostrander: Method for interpretation of seismic records to yield indication of gaseous hydrocarbons. Chevron Research Company, J A Buchanan Jr, R L Freeland Jr, H D Messner, February 16, 1982: US04316268 (24 worldwide citation)

The present invention indicates that gas-containing strata of an earth formation have low Poisson's ratios and that the acoustic contrast with the overburden rock has a surprising effect as a function of the angle of incidence on a seismic wave associated with an array of sources and detectors: viz. ...


10
Earl F Herkenhoff, William J Ostrander: Method for the interpretation of envelope-related seismic records to yield valuable characteristics, such as gas-bearing potential and lithology of strata. Chevron Research Company, H D Messner, E J Keeling, February 25, 1986: US04573148 (23 worldwide citation)

In accordance with the present invention, progressive changes in amplitude as a function of offset of common gathers can be more easily identified by displaying difference envelopes of "near" and "far" amplitude vs. time traces of each gather, as a function of common groups of centerpoints. A signif ...