Atlantic Richfield Company

Conocophillips Company

Other

Albert F Chan

Kieu T Ly

William Mark Bohon

David J Blumer

Michael D Erwin

William G McLelland

A method for cleaning a work string which may have been used to inject drilling muds, cement slurries, cement displacement materials and the like into a well where the work strong may contain drilling mud residues, cement slurry residues, cement slurry displacement materials, pipe thread lubricants, pipe dope and the like, as well as corrosion on the inside of the work string by injecting a dispersion slug into and recovering the dispersion slug from the work string.

Method for pickling a work string using dispersed solvent-in-acid fluid design

A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic fluorocarbon surfactant, an alkyl alcohol, water optionally containing ammonium chloride and at least one of an alkyl polyglycoside and a betaine surfactant to produce a stable foam used to remove filter cake from a horizontal wellbore.

Method and composition for removing filter cake from a horizontal wellbore using a stable acid foam

Method for removing filter cake from a horizontal wellbore using acid foam

A composition, formulation, and method for removing water from a near-wellbore portion of a subterranean formation containing a crude oil and penetrated by a wellbore. The formulation contains alkylpolyglycoside, ethoxylated alcohol and linear alkyl alcohols. The composition contains a hydrocarbonaceous liquid, alkylpolyglycoside, ethoxylated alcohol and linear alkyl alcohol.

Water block removal with surfactant based hydrocarbonaceous liquid system

A method and a tandem spacer consisting of an aqueous lead spacer fluid and an aqueous tail spacer fluid for displacing a drilling fluid from an annular space in a wellbore with a cement slurry is disclosed. The aqueous lead spacer fluid and the aqueous tail spacer fluid are formulated to minimize mixing between a displaced drilling fluid and a cement slurry and to clean contaminants from the annular space.

Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus

A method and composition for removing deposits of heavy hydrocarbonaceous materials and finely divided inorganic particulate matter from wellbore and flowline surfaces using a composition containing an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol.

Method for removing deposits comprising heavy hydrocarbonaceous materials and finely divided inorganic materials from a flow line using a surfactant composition

Surfactant composition for cleaning wellbore and oil field surfaces

A method for cleaning a wellbore plugged with deposits of heavy hydrocarbons and finely-divided inorganic solids by circulating a surfactant composition containing an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol through the wellbore with a coiled tubing.

Method for cleaning wellbore surfaces using coiled tubing with a

A method and composition for removing deposits of heavy hydrocarbonaceous materials and finely divided inorganic particulate matter from wellbore and flowline surfaces using a composition containing an alkyl polyglycoside, an ethoxylated alcohol, an acid and an alkyl alcohol.

Acidic surfactant composition and method for cleaning wellbore and

Surfactant compositions for wellbore operations consisting essentially of a first surfactant selected from the group consisting of alkyl polyglycosides containing alkyl groups containing an odd number of carbon atoms from about 9 to about 13 carbon atoms and a second surfactant selected from the group consisting of alkyl polyglycosides containing alkyl groups containing from about 12 to about 18 carbon atoms and a third surfactant selected from the group consisting of linear ethoxylated alcohols containing from about 8 to 12 carbon atoms and from about 2 to about 8 ethylene oxide groups and a method for formulating such surfactant compositions.

Surfactant blends for well operation

A method for removing deposits of heavy hydrocarbonaceous materials and finely divided inorganic particulate matter from a tank using a composition containing an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol.

Method for cleaning deposits from a tank using a surfactant composition

Surfactant composition and method for cleaning wellbore and oil field

A method and composition for removing deposits of heavy hydrocarbonaceous materials and finely divided drilling fluid solids from a wellbore using a composition containing an alkyl polyglycoside, an ethoxylated alcohol, a caustic and an alkyl alcohol by injecting the composition into the wellbore, maintaining the composition in the wellbore for a selected time and thereafter producing the composition from the wellbore.

Growing community of inventors

Plano, TX, United States of America

Albert F Chan