Schlumberger Technology Corporation

Ykk Corporation

Matthew Offenbacher

Steven Jay Young

Balkrishna Gadiyar

Mark Luyster

Jason T Scorsone

Guido De Stefano

Andrew Chew

Methods include drilling at least one interval of a wellbore with a water-based wellbore fluid producing a filtercake in the at least one interval of the wellbore. The methods also include gravel packing an interval of a wellbore traversing a subterranean formation with a gravel pack that comprises polyhydroxycarboxylic acid, and hydrolyzing the polyhydroxycarboxylic acid to degrade at least a portion of the filtercake.

Use of particulate or fibrous materials in gravel pack applications

A method for completing a wellbore may include introducing a wellbore fluid into a wellbore, the wellbore fluid having a base fluid; and a solid weighting agent having a d90 of less than 20 microns; where the method may also include contacting the wellbore fluid with a swellable element in the wellbore; and allowing swelling of the swellable element.

Wellbore fluid used with swellable elements

Methods of delivering a low density solvent into a wellbore include combining an oleaginous solvent and a nonoleaginous fluid to form an emulsion, and injecting the emulsion into a wellbore. Other uses of low density solvent systems may include dissolving waxes and wax-containing residues in a wellbore, on downhole tools, from sand screens, or use in general cleanup operations in and outside of the wellbore.

Method of applying solvent treatments using emulsions

A method for completing a wellbore may include introducing an oil-containing wellbore fluid into a wellbore having water-based filtercake on walls thereof, contacting the oil-containing wellbore fluid with an oil-swellable element in the wellbore; and allowing swelling of the oil-swellable element, where the oil-containing wellbore fluid is substantially free of unassociated surfactants, emulsifiers, or dispersants and may include an oleaginous fluid and a weighting agent.

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Houston, TX, United States of America

Matthew Offenbacher