San Ramon, CA, United States
San Ramon, CA, United States

Chevron Corporation is an American multinational energy corporation. One of the successor companies of Standard Oil, it is headquartered in San Ramon, California, and active in more than 180 countries. Chevron is engaged in every aspect of the oil, gas, and geothermal energy industries, including exploration and production; refining, marketing and transport; chemicals manufacturing and sales; and power generation. Chevron is one of the world's largest oil companies; as of 2013, it ranked third in the Fortune Global 500-2014 list of the world's largest companies.Chevron's downstream operations manufacture and sell products such as fuels, lubricants, additives and petrochemicals. The company's most significant areas of operations are the west coast of North America, the U.S. Gulf Coast, Southeast Asia, South Korea, Australia and South Africa. In 2010, Chevron sold an average 3.1 million barrels per day of refined products like gasoline, diesel and jet fuel.Chevron's alternative energy operations include geothermal, solar, wind, biofuel, fuel cells, and hydrogen. In 2011–2013, the company planned to spend at least $2 billion on research and acquisition of renewable power ventures. Chevron has claimed to be the world's largest producer of geothermal energy. In October 2011, Chevron launched a 29-MW thermal solar-to-steam facility in the Coalinga Field to produce the steam for enhanced oil recovery. The project is the largest of its kind in the world. Wikipedia.

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Embodiments of methods of creating and interpreting animated mosaics of multiple seismic surveys are disclosed herein. Volumes from individual seismic surveys may be flattened in each seismic cube. Animations/movies may then be produced by capturing a series of z-slice movie frames through each of the flattened volumes. The individual sets of movie frames are geo-referenced to a basemap image of well locations using appropriate composition software. Where overlap exists between surveys, the surveys are prioritized and lower priority volumes are masked by higher priority volumes. This technique provides a matched, unbroken image across overlapping volumes at each stratigraphic layer. As the movie or animation plays, a moving arrow pointer shows the vertical position of the current movie frame on a stratigraphic section consisting of a seismic reference section that is optionally labelled with suitable regional sequence names and other stratigraphic zonation data.


Disclosed herein are catalyst compositions containing boron bridged, cyclopentadienyl-indenyl metallocene compounds with an alkenyl substituent. These catalyst compositions can be used for the polymerization of olefins. For example, ethylene homopolymers produced using these catalyst compositions can be characterized by a density less than 0.97 g/cm3 and a melt index greater than 50 g/10 min.


A system and method for analyzing geologic features including fluid estimation and lithology discrimination may include the steps of identifying areas of interest on a seismic horizon, computing statistical data ranges for the seismic amplitudes within the areas of interest, and analyzing the geologic features based on the amplitude variation with offset (AVO) or angle (AVA) curves including the statistical data ranges.


Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.


Patent
Chevron | Date: 2017-03-22

Disclosed herein are monoester-based lubricant compositions and methods of making these monoester-based lubricant compositions. The monoester lubricant compositions comprise an isomeric mixture of at least one monoester species having a carbon number ranging from C8 to C40. In some embodiments, the methods for making the monoester-based lubricants utilize a biomass precursor and/or low value Fischer-Tropsch (FT) olefins and/or alcohols to produce high value monoester-based lubricants. In some embodiments, the monoester-based lubricants are derived from FT olefins and fatty acids. The fatty acids can be from a bio-based source (i.e., biomass, renewable source) or can be derived from FT alcohols via oxidation.


The present invention is directed to an improved hydrocracking catalyst containing a amorphous silica-alumina (ASA) base and alumina support. The ASA base is characterized as having a high nanopore volume and low particle density. The alumina support is characterized as having a high nanopore volume. Hydrocracking catalysts employing the combination high nanopore volume ASA base and alumina support exhibit improved hydrogen efficiency, and greater product yield and quality, as compared to hydrocracking catalysts containing conventional ASA base and alumina components.


Patent
Chevron | Date: 2017-05-10

A method is disclosed for making a new crystalline molecular sieve designated SSZ-98. SSZ-98 has the ERI framework type and is synthesized using a N,N-dimethyl-1,4-diazabicyclo[2.2.2]octane dication as a structure directing agent.


A method of treating a polymerization reactor effluent stream comprising: recovering the effluent stream from the polymerization reactor, flashing the effluent stream to form a flash gas stream, feeding the flash gas stream into a first column, recovering a first overhead stream, a first bottom stream, and a side stream, from the first column, wherein the side stream substantially comprises hexane, feeding the first overhead stream into an accumulator vessel, recovering a second overhead stream and a second bottom stream from the accumulator vessel, wherein the second bottom stream substantially comprises isobutane, feeding the second overhead stream to a second column, and recovering a third overhead stream and a third bottom stream from the second column, wherein the third bottom stream is substantially olefin-free.


A composition comprising a supported hydrogenation catalyst comprising palladium and an organophosphorous compound, the supported hydrogenation catalyst being capable of selectively hydrogenating highly unsaturated hydrocarbons to unsaturated hydrocarbons.


An autonomous downhole power generation system includes a power generation device configured to be disposed in an annular space around a portion of a production tubing. The power generation device is switchable between a power generation mode and a bypass mode. The system further includes a power storage device electrically coupled to the power generation device and configured to store power generated by the power generation device, and a control processor communicatively coupled to the power generation device. The control processor switches the power generation device between the power generation mode and the bypass mode based on a preprogrammed operational protocol.

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