Chevron U.s.a. Inc.

Other

David Reuel Underdown

H Mitchell Cornette

Luis Phillipe Tosi

Reza Sarrafi-Nour

Antonio Lazo

Jeremy Alexander Davis

Stephen Joseph Miller

Curtis Lee Munson

John R Hampton

Krystian K Maskos

Luis Phillipe Costa Ferreira Tosi

Peter C Schmidt

William David Norman

Jean P Camy

Rick A Wright

Luis Phillipe Ferreira Costa Tosi

Mark H Koelmel

Steve E Ross

System and method of non-line-of-sight coating of a sand screen for use in wellbores during the production of hydrocarbon fluids from subterranean formations. The coatings can have uniformly coated internal and external surfaces.

Downhole sand control screen system

A method of non-line-of-sight coating of a sand screen for use in wellbores during the production of hydrocarbon fluids from subterranean formations. The coating can have uniformly coated internal and external surfaces.

Methods of coating a sand screen component

The present invention is directed to methods for harnessing flow-induced electrostatic energy in a tubular length and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.). The present invention is also directed to corresponding systems through which such methods are implemented.

Flow induced electrostatic power generator for tubular segments

A method for controlling pressure in a wellbore during a perforating operation can include positioning a perforating tool within the wellbore, where the perforating tool comprises a gun and an energetic chamber. The method can also include igniting an energetic within the energetic chamber to generate a propellant. The method can further include igniting at least one charge within the gun, where the at least one charge is ignited toward a wall of the wellbore adjacent to the gun. The method can also include directing the propellant from the energetic chamber into the gun.

Controlling pressure during perforating operations

The present invention is directed to methods for assessing flow-induced electrostatic energy in an oil and/or gas well wherein electric current or electrostatic potential or both are measured to produce data correlating to at least one flow characteristic of a tubular segment in the well. In some embodiments, electric current and electrostatic potential are produced separately for a plurality of segments, and measured. The system further may adjust at least one flow characteristic of a segment of the well to increase hydrocarbon production from the well.

Flow sensing apparatus and methods for use in oil and gas wells

The present invention is directed to processes (methods) for harnessing flow-induced electrostatic energy in an oil and/or gas well and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.) downhole. The present invention is also directed to corresponding systems through which such methods are implemented.

Flow-induced electrostatic power generator for downhole use in oil and gas wells

A system and method for recovery of hydrocarbon gas and liquids from a sub-sea environment utilizing a sub-sea membrane separation system. The system includes a production string located in a sub-sea wellbore for removing hydrocarbons and contaminants from a sub-sea formation. At least one membrane separator for separating contaminants from hydrocarbons removed from the sub-sea formation is located underwater between the production string and a hydrocarbon collection tank such that a predetermined temperature of the hydrocarbons is obtained by the location of the membrane. In another embodiment, a tube is connected to a sub-sea production string for removing hydrocarbons and contaminants from a sub-sea wellbore. At least one membrane separator for separating contaminants from hydrocarbons in the tube is positioned between the production string and a hydrocarbon collection tank wherein the temperature of the hydrocarbons and contaminants is controlled by the location of the membrane.

Sub-sea membrane separation system with temperature control

A downhole preferential hydrocarbon gas recovery system and method employ preferentially selective materials to separate the hydrocarbon gas from contaminants. According to one aspect of the invention, the preferentially selective materials are arranged in tubes with the hydrocarbon gas flowing through the tubes and the contaminants permeating out through the preferentially selective material.

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Conroe, TX, United States of America

David Reuel Underdown