1
Limin Hsueh: Hasdrive with multiple offset producers. Chevron Research Company, S R La Paglia, E J Keeling, E A Schaal, September 29, 1987: US04696345 (168 worldwide citation)

The present invention is an improvement on the method of recovering viscous petroleum from a petroleum-containing formation by providing a steam injection well from the earth's surface through the formation, extending at least one lateral hole from the vicinity of the steam injection well through at ...


2
Waldeen C Buss, Leslie A Field, Richard C Robinson: Hydrocarbon conversion process. Chevron Research Company, S R LaPaglia, W K Turner, E A Schaal, June 26, 1984: US04456527 (102 worldwide citation)

A hydrocarbon conversion process is disclosed having a very high selectivity for dehydrocyclization. In one aspect of this process, a hydrocarbon feed is subjected to hydrotreating, then the hydrocarbon feed is passed through a sulfur removal system which reduces the sulfur concentration of the hydr ...


3
Lee F Donaghey: Resistive hydrocarbon leak detector. Chevron Research Company, S R LaPaglia, E J Keeling, E A Schaal, December 30, 1986: US04631952 (72 worldwide citation)

An apparatus and method for sensing organic liquids, vapors and gases which includes a resistivity sensor means comprising an intimate admixture of conductive particles and a material capable of swelling the presence of the liquid, gas or vapor to be detected and an electrical contact thereto.


4
James J Harrison, William R Ruhe Jr: Modified high molecular weight succinimides. Chevron Research and Technology Company a Division of Chevron U, E A Schaal, W K Turner, August 2, 1994: US05334321 (70 worldwide citation)

Alkenyl or alkyl succinimide additives which are the reaction product of a high molecular weight alkenyl- or alkyl-substituted succinic anhydride and a polyalkylene polyamine having an average of greater than 4 nitrogen atoms per mole, wherein the reaction product is post-treated with a cyclic carbo ...


5
Waldeen C Buss, Thomas R Hughes: Method of dehydrocyclizing alkanes. Chevron Research Company, D A Newell, S R LaPaglia, E A Schaal, March 6, 1984: US04435283 (62 worldwide citation)

A method of dehydrocyclizing alkanes is disclosed wherein the alkanes are contacted with a catalyst containing a large-pore zeolite, a Group VIII metal, and an alkaline earth metal. The amount of Group VIII metal and the amount of alkaline earth metal present in the catalyst are adjusted so that the ...


6
Willard J Sevigny, Donald L Kuehne, Jeremy Cantor: Enhanced oil recovery method employing a high temperature brine tolerant foam-forming composition. Chevron Research and Technology Company a Division of Chevron U, E A Schaal, W K Turner, October 25, 1994: US05358045 (57 worldwide citation)

An enhanced oil recovery technique for recovering hydrocarbons from a reservoir during gas injection comprises the at least periodic injection of gas and a foam-forming composition into the reservoir. The foam-forming composition comprises water, an effective foam-forming amount of a C.sub.10-16 .al ...


7
James J Harrison, William R Ruhe Jr, Jack E Morris, Jacques Cazin: Chlorine-free lubricating oils having modified high molecular weight succinimides. Chevron Research and Technology Company A Division of Chevron U, W K Turner, E A Schaal, October 18, 1994: US05356552 (52 worldwide citation)

Alkenyl or alkyl succinimide additives which are the reaction product of a high molecular weight alkenyl- or alkyl-substituted succinic anhydride and a polyalkylene polyamine having an average of greater than 4 nitrogen atoms per mole, wherein the reaction product is post-treated with a cyclic carbo ...


8
Patrick J Shuler: Method of preventing in-depth formation damage during injection of water into a formation. Chevron Research and Technology Company, W K Turner, E A Schaal, October 12, 1993: US05251697 (48 worldwide citation)

In-depth formation damage is prevented during water injection by adding to the water non-compressible solids of sufficient size and concentration to form an external filter cake within the injection well. Preferably, the non-compressible solids are either diatomite, perlite, saw dust, or calcium car ...


9
Waldeen C Buss: Reforming process. Chevron Research Company, S R LaPaglia, E A Schaal, P L McGarrigle Jr, February 24, 1987: US04645586 (46 worldwide citation)

A reforming process is disclosed wherein a hydrocarbon feed is contacted with two reforming catalysts at conditions which favor reforming. The first reforming catalyst comprises a metallic oxide support having disposed therein a Group VIII metal. This first reforming catalyst may contain Group VIII ...


10
Donald C Schmadel Jr, Jack E Goodman: Process of tuning a grated optical fiber and the tuned optical fiber. Chevron Research Company, S R LaPaglia, E J Keeling, E A Schaal, January 13, 1987: US04636031 (41 worldwide citation)

A tuned optical fiber grating and a tuning process is disclosed. The gratings on the optical fiber ar tuned so that the reflectance of the grating can occur at a specific wavelength. The process involves encasing that portion of the fiber containing the grating while shining light of the wavelength ...