Schlumberger Technology Corporation

Schlumberger Technology Corpoation

Baudel William Quintero

Leiming Li

Lijun Lin

Richard Donald Hutchins

Paul R Howard

Carlos Abad

Syed Afaq Ali

Curtis L Boney

Michael D Parris

Andrey Mirakyan

Arthur Milne

Emilio Jose Miquilena

Sudhir Shenoy

Ksenia Eliseeva

Roberto Arangath

Pedro Saldungaray

Chucks I Ezeokonkwo

The invention provides a method made of steps of injecting into a wellbore, a composition comprising a solvent, a surfactant, a foaming gas, a foam enhancer, a crosslinkable polymer, and a crosslinking agent capable of crosslinking the polymer, wherein the foam enhancer increases the foam half-life of the gel composition compared to the gel composition without the foam enhancer; and allowing viscosity of the composition to increase and form a gel.

Gelled foam compositions and methods

The invention discloses method of treatment and reuse of oilfield produced water. The method comprises: providing an aqueous medium comprised at least in part of oilfield produced water; contacting the aqueous medium with a zirconium compound; whereby the fluid viscosity and/or fluid drag reduction ability of the combination of the aqueous medium and zirconium compound is improved compared to the aqueous medium alone; introducing the combination in to the well; and allowing the combination to contact the formation. In another embodiment, the aqueous medium is further contacted by a friction-reduction additive. Still in another embodiment, the aqueous medium is further contacted by a gelling additive. Still in another embodiment, the fluid is energized with a gas.

Treatment and reuse of oilfield produced water for operations in a well

A method of treating a subterranean formation penetrated by a wellbore utilizes a treating fluid formed from an aqueous solution of a water-soluble polymer. The treating fluid further contains a crosslinking agent and an optional delayed release alkaline additive. The delayed release alkaline additive may be at least one of urea, a urea derivative, a solid alkaline earth metal carbonate, a solid alkaline earth metal oxide and combinations of these. The treating fluid further includes an acidic pH adjusting agent used in an amount to provide the treating fluid with a pH of less than about 5. The treating fluid is then introduced into the formation.

Method of treating subterranean formation with crosslinked polymer fluid

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Friendswood, TX, United States of America

Baudel William Quintero