Chevron U.s.a. Inc.

Nabijan Nizamidin

Taimur Malik

Varadarajan Dwarakanath

Gayani W Pinnawala

Guo-Qing Tang

Mohsen S Tagavifar

Samiha Said Elsayed Morsy

Gregory Arthur Winslow

Dustin Luke Walker

Dustin J Lowry

Tetsuo Art Inouye

Jordan Taylor Isbell

Do Hoon Kim

Harold Charles Linnemeyer

Ruth Ellen Hahn

Dennis Arun Alexis

Kerry Kennedy Spilker

Timothy P Theriot

Seung Jin Han

Leonardo F Chaves Leal

Mohamad Salman

Samuel Wei-en Lau

Jimin Daniel Zhou

Reza Banki

Gojko Matovic

Lin Zuo

Aleisha Nichole Guiler

Dawit Yenesew Dagnaw

Omar Visairo

Brian Paul Price

Yifan Li

Michael Ogechukwuka Unomah

Samiha Said Morsy

Processes for adding a chemical composition to a produced water mixture upstream of a pad related to a well to be fracked are described. The added chemical composition comprises a drag reducing agent, or a biocide, or a scale inhibitor, or any combination thereof. The produced water mixture comprising the added chemical composition may then be transferred in a pipeline to the well to be fracked.

Processes for chemical dosing prior to the pad

Described herein are compositions and methods that stabilize an injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises an anionic surfactant and optionally one or more secondary surfactants.

Injection fluids comprising an anionic surfactant for treating unconventional formations

Described are compositions and methods for use in oil and gas operations. The methods can decrease pressure drop along a lateral segment of a wellbore in an unconventional subterranean formation.

Compositions containing friction reducers and methods of using thereof in oil and gas operations

Provided herein are compositions comprising borate-acid buffers, as well as methods of using these compositions in oil and gas operations, including enhanced oil recovery (EOR) operations, fracturing operations, stimulation operations, etc.

Use of a borate-acid buffer in oil and gas operations

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations.

Compositions and methods for pressure protection

Disclosed are foam precursor compositions, foamed compositions, and methods of using these foamed compositions for the stimulation of unconventional reservoirs.

Methods for foam stimulation

The present invention relates generally to systems and processes for improved drag reduction estimation and measurement and more specifically to portable drag reduction analyzers and processes for upscaling drag reduction data for a variety of field applications. A drag reduction parameter ΔB for the fluid mixture is used for determining drag reduction for a fluid mixture in an oil field or pipeline operation.

Systems and processes for improved drag reduction estimation and measurement

Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises a surfactant and optionally one or more secondary surfactants. Also provided are methods of using the stabilized injection fluids in stimulation operations.

Injection fluids for stimulating fractured formations

Embodiments of the disclosure include compositions and methods that stabilize a injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises a non-ionic surfactant and optionally one or more secondary surfactants.

Injection fluids comprising a non-ionic surfactant for treating unconventional formations

Described herein are compositions and methods that stabilize an injection fluid when exposed to reservoir conditions, reducing formation damage and increasing the amount of hydrocarbon recovered. Specifically, the formulation is a single-phase liquid surfactant package which comprises an anionic surfactant including a hydrophobic tail comprising from 6 to 60 carbon atoms and optionally one or more secondary surfactants.

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting an aqueous pressure protection composition into an unconventional subterranean formation via an existing wellbore in fluid communication with a rock matrix of the unconventional subterranean formation prior to and/or during injection of a fracturing fluid into the unconventional subterranean formation via a new wellbore in fluid communication with the rock matrix of the unconventional subterranean formation; and producing a hydrocarbon from the existing wellbore during and/or after the injection of the fracturing fluid into the unconventional subterranean formation via the new wellbore.

Methods for improving hydrocarbon production from an unconventional subterranean formation

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a gas into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.

Methods for pressure protection using a gas

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. The methods can include injecting a foamed pressure protection composition into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation.

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Houston, TX, United States of America

Nabijan Nizamidin