Chevron U.s.a. Inc.

University of Minnesota

Other

Leland Stanford Junior University

Chevron Research Company

Chervon U.s.a. Inc.

Naturnorth Technologies, LLC

Naturtek, LLC

Robert Martin Carlson

Jeremy E Dahl

Shenggao Liu

Pavel A Krasutsky

Vitaliy V Nesterenko

Marcus Oliver Wigand

Mark Dean Looney

Igor V Kolomitsyn

Chris F Edwardson

Eugene Tokhtuev

Christopher J Owen

Anatoly Skirda

Viktor Slobodyan

David J Gibson

Raj Karim

Alexander Tokhtuev

Waqar R Qureshi

Saleh Ali Elomari

Michael A Kelly

Andrew William Tudhope

Hye Kyung C Timken

William John Boardman

Thomas B Casserly

Steven F Sciamanna

Theo Maesen

Hong Wang

J Michael Moldowan

Igor M Kolomitsyn

Edmund F Robar

M Reza-Ul Karim

A towable stream gauge platform having an asymmetrical elastic harness comprises a buoyant flexible platform and a harness including a shock cord having first and second lengths interconnected at a loop, both lengths passing slidably through a plurality of retaining rings flexibly attached to pad eyes embedded in the top surface of the platform, a leading end of said first length extending forward of said retaining rings on one side of the platform and the loop extending forward of said retaining rings on the other side of the platform, a terminal end of the second length secured to the top surface of the platform, one end of a pull cord attached to the loop and the other end of the pull cord attached to the leading end, such that the pull cord encounters greater resistance from the loop than from the lead end when under tension.

Towable stream gauge platform having asymmetrical elastic harness

Methods for extracting a kerogen-based product from subsurface (oil) shale formations rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. An alkaline material is also provided to the formation fluid to mobilize organic acids which are produced during oxidation of the kerogen. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and further processed to isolate the organic acids contained therein. These organic acids are valuable as hydrocarbon products for creating commercial products and a portion of these organic acids can also be used in the process for extracting the kerogen-based product from the subsurface shale formation.

In-situ kerogen conversion and recycling

Disclosed herein are methods for extracting a kerogen-based product from subsurface (oil) shale formations. These methods rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and processed to isolate the organic acids contained therein. The isolated organic acids are upgraded by a reaction process that make the products suitable as refinery feedstocks, fuel or lubricant blendstocks, reaction intermediates, chemical feedstocks, or chemical intermediate blendstocks.

In-situ kerogen conversion and product upgrading

Disclosed herein are methods for isolating heavy saturated hydrocarbons from a subsurface shale formation comprising kerogen and an extractible organics component. These methods can be used to provide a bright stock product. The process comprises extracting an extractible organics component from subsurface shale formations comprising kerogen and the extractible organics component in an inorganic matrix and isolating a heavy hydrocarbon fraction comprising saturated beta-carotene. The methods utilize a hydrocarbon solvent to at least partially solubilize the extractible organics component. Among other factors, these processes are based on the discovery that the extractible organics is composed of a heavy hydrocarbon component containing saturated beta-carotene. The saturated beta-carotene product is a valuable commercial product. The presently disclosed processes are more environmentally benign, more economical, and more efficient in producing commercial products and in providing access to kerogen.

Isolating lubricating oils from subsurface shale formations

Methods for extracting a kerogen-based product from subsurface (oil) shale formations. These methods rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. An alkaline material is also provided to the formation fluid to mobilize organic acids which are produced during oxidation of the kerogen. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and further processed to isolate the organic acids contained therein.

In-situ kerogen conversion and recovery

The invention relates to methods for extracting a kerogen-based product from subsurface (oil) shale formations. These methods rely on chemically modifying the shale-bound kerogen using a chemical oxidant so as to render it mobile. The oxidant is provided to a formation fluid in contact with the kerogen in the subsurface shale. A mobile kerogen-based product which includes the organic acids is withdrawn from the subsurface shale formation and processed to isolate the organic acids contained therein. In one embodiment, the mobile kerogen-based product is treated such that at least a portion of the organic acids form a separate phase from the mobile kerogen-based product to isolate the acids. The organic acids may further be extracted from the mobile kerogen-based product using an organic extraction fluid.

In-situ Kerogen conversion and product isolation

Higher diamondoid derivatives capable of taking part in polymerization reactions are disclosed as well as intermediates to these derivatives, polymers formed from these derivatives and methods for preparing the polymers.

Polymerizable higher diamondoid derivatives

In some embodiments, the present invention is directed to methods for synthesizing higher diamondoids, wherein said methods involve augmenting existing diamondoid molecules through the bonding of carbon atoms to such existing diamondoid species with intramolecular cross-linking so as to form larger diamondoids containing face-fused diamond-crystal (adamantane) cages with carbon frameworks superimposable on the cubic-diamond crystal lattice.

Synthesis of higher diamondoids

A method of forming a diamond-like carbon coating by plasma enhanced chemical vapor deposition on an internal surface of a hollow component having an inner surface. A reduced atmospheric pressure is created within a pipe or other hollow component to be treated. A diamondoid precursor gas is introduced to the interior of the component. A bias voltage is established between a first electrode and one or more second electrodes. The first electrode is or is attached to the component. The second electrode is externally offset from an opening of the component, by a hollow insulator. A plasma region is established adjacent an inner surface of the component and extends through the hollow insulator. The precursor gas comprises at least one diamondoid. The pressure and bias voltage are selected such as to cause the deposition of diamond-like carbon on the inner surface.

Method for producing diamond-like carbon coatings using PECVD and diamondoid precursors on internal surfaces of a hollow component

This invention is related to heteroatom containing diamondoids (i.e., 'heterodiamondoids') which are compounds having a diamondoid nucleus in which one or more of the diamondoid nucleus carbons has been substitutionally replaced with a noncarbon atom. These heteroatom substituents impart desirable properties to the diamondoid. In addition, the heterodiamondoids are functionalized affording compounds carrying one or more functional groups covalently pendant therefrom. This invention is further related to polymerizable functionalized heterodiamondoids. In a preferred aspect of this invention the diamondoid nuclei are triamantane and higher diamondoid nuclei. In another preferred aspect, the heteroatoms are selected to give rise to diamondoid materials which can serve as n- and p-type materials in electronic devices can serve as optically active materials.

Heterodiamondoids

This invention is directed to functionalized higher diamondoids having at least one functional group. Preferably these derivatives have the following Formula I: wherein D is a higher diamondoid nucleus and wherein R, R, R, R, Rand Rare independently selected from a group consisting of hydrogen and functional groups, provided that there is at least one functional group on the derivative. The functionalized higher diamondoid compounds may also be of the formula D&#x2014;L&#x2014;(D)wherein D is a higher diamondoid nucleus and L is a linking group and n is 1 or more. The functionalized higher diamondoid compounds additionally may be of the formula R&#x2014;D&#x2014;D&#x2014;Rwherein D is a higher diamondoid nucleus and Rand Rare substituents.

Functionalized higher diamondoids

Novel positive-working photoresist compositions are disclosed. The monomers of the base resin of the resist contain diamondoid-containing pendant groups higher than adamantane in the polymantane series; for example, diamantane, triamantane, tetramantane, pentamantane, hexamantane, etc. The diamondoid-containing pendant group may have hydrophilic-enhancing substituents such as a hydroxyl group, and may contain a lactone group. Advantages of the present compositions include enhanced resolution, sensitivity, and adhesion to the substrate.

Photoresist compositions comprising diamondoid derivatives

Growing community of inventors

Petaluma, CA, United States of America

Robert Martin Carlson