Baker Hughes Oilfield Operations LLC

Bj Services Company

Marty J Usie

Naima Bestaoui-Spurr

Joel Lynn Boles

Frances H DeBenedictis

John Mayor

Kelly Guilbeau Berard

A scale removal agent may effectively be introduced into a well having a formation temperature of 300° F. The scale removal agent is a component of a gelled fluid containing an amine oxide viscoelastic surfactant.

Methods for transporting scale removal agents into a well

A composite for controlling the release of a well treatment agent or for inhibiting or preventing the formation of contaminants into a fluid or a surface within a reservoir contains a well treatment agent immobilized on a surface of the support or into the pores of a porous support. The composite is at least partially coated with an organic polymer or inorganic material. The composite exhibits sufficient strength for the composite to be used as a proppant or in conjunction with a proppant.

Method of using coated composites containing delayed release agent in a well treatment operation

A method of enhancing the productivity of hydrocarbons from hydrocarbon bearing siliceous formations, particularly those made up at least in part of zeolites, is achieved by contacting the formation with a treatment solution comprising citric acid, phosphonate compounds, and hydrofluoric acid. The treatment solution can be applied prior to gravel packing or fracturing. This solution may optionally contain ammonium salts. Similar solutions comprising citric acid and phosphonate compounds without hydrofluoric acid may also be used to contact the formation prior to contacting the formation with the citric acid and phosphonate solution containing hydrofluoric acid. Other preflushes known in the art, such as hydrochloric, acetic or formic acid solutions, may also be used.

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Youngsville, LA, United States of America

Marty J Usie