Baker Hughes Corporation

Tetra Technologies, Inc.

Baker Hughes, a Ge Compnay, LLC

Rhodia Operations

Stanley Gunawan

Charles David Armstrong

Arthur G Mack

Mark Alan Vorderbruggen

Katrina Schultz

Qi Qu

Lawrence N Kremer

Zhihua Zhang

Zhenxing Cheng

Shaopeng Zhang

Igor Pimkov

Water-in-oil emulsions are provided that include an alkyl propylene diamine and an ethoxylated alcohol as the inverting surfactant, which is present in an amount less than 5 percent by weight of the water-in-oil emulsion.

Inverting surfactants for inverse emulsions

A stabilized composition for use as a well fluid is provided. The stabilized composition includes a brine, a polyol, the polyol in an amount operable to inhibit solid formation, the polyol further operable to dissolve within the brine; and a stabilization compound, the stabilization compound operable to stabilize the polyol, such that the polyol does not degrade at a bottom hole temperature.

Temperature stability of polyols and sugar alcohols in brines

Corrosive effects arising during well treatment applications are inhibited and/or prevented by introducing into the well composition containing a corrosion inhibitor of a biosurfactant selected from glycolipids (other than sophorolipids and mannosylerythritol lipids), phospholipids; polyol lipids; lipoproteins, lipopeptides, ornithine lipids, carbohydrate-lipids, neutral lipids, aminoacid lipids, exolipids, liposan; siderolipids, protein polyamines diglycosyl diglycerides, fimbriae, saponified triglycerides and fatty acids. The composition may also contain a corrosion inhibitor intensifier.

Method of using biosurfactants as acid corrosion inhibitors in well treatment operations

Cellulose may be converted into simple sugars such as glucose by contacting the cellulose with a compound effective to catalytically cleave the ether bonds of the cellulose. The compound may be a vitamin, a porphyrin, flavins, pyridoxal-containing molecules, and/or a compound containing at least one ylide functional group. The cellulose may be carboxymethyl cellulose (CMC), which may be made by reacting cellulose with chloroacetic acid and a base such as NaOH. The compound may be vitamins (B1, B2, B6, or B12), phosphonium ylides, sulfonium ylides, sulfoxonium ylides, carbonyl ylides, oxonium ylides, asomethine ylides, iminium ylides, halonium ylides, and combinations thereof. The free glucose may be used for fermentation, converted to a biofuel and for other applications.

Conversion of cellulose into simple sugars

Corrosive effects arising during well treatment applications are inhibited and/or prevented by introducing into the well composition containing a corrosion inhibitor of a sophorolipid or a mannosylerythritol lipid or a combination thereof. The composition may also contain a corrosion inhibitor intensifier.

Method of using sophorolipids or mannosylerythritol lipids as acid corrosion inhibitors in well treatment operations

Viscosifying polymers are effectively degraded during a well treatment operation with an ylide breaker or a vitamin B cofactor. The vitamin B cofactor is an ylide, vitamin B, vitamin B, vitamin B, vitamin B, vitamin Bor vitamin Bor mixtures thereof. Such breakers are effective at room and elevated temperatures and high pH environments.

Growing community of inventors

The Woodlands, TX, United States of America

Stanley Gunawan