Schlumberger Technology Corporation

Roman Kats

Yucun Lou

Oliver Clinton Mullins

Jahir A Pabon

Christopher Harrison

Francois M Auzerais

Agathe Robisson

John David Rowatt

Shitong Sherry Zhu

Douglas W Grant

Michael O'Keefe

Jimmy Lawrence

Jeffrey E Thomas

Jane T Lam

Ronald Van Hal

Meng Qu

Simone Musso

Andreas Hausot

Miranda Amarante

Matthew Godfrey

James G Haug

Philip Kokel

Gauri Joshi

Embodiments may generally take the form of a degradable composite structure and a method for controlling the rate of degradation of a degradable composite structure. An example embodiment may take the form of a degradable polymer matrix composite (PMC) including a matrix having: a degradable polymer, a fiber reinforcement, and particulate fillers. The fiber loading is between approximately 10% to 70% by weight and the particulate loading is between approximately 5% to 60%.

Degradable composite structures

Apparatus and methods for measuring confining pressure, axial strain and radial strain of zonal isolation materials are described. This information is useful for evaluating these materials and predicting seal performance and potential failures of these materials.

Confining pressure measurement for zonal isolation evaluation

Methods and devices for mixing a first fluid with a second fluid downhole include a chamber having a first end, a second end and an opening for fluid to flow there through. A top surface of a perforated piston is capable of contacting the second end and a top surface of a piston is capable of contacting a bottom surface of the perforated piston. The perforated piston is located at a first position within the chamber based upon characteristics of a first fluid. A first fluid delivery system supplies the first fluid and a second fluid delivery system supplies a second fluid to the chamber, wherein the second fluid is at a pressure that moves the piston approximate to the first end. An actuating device applies a force against the bottom surface of the piston to inject the fluids through channels of the perforated piston to produce spray droplets.

Downhole mixing device for mixing a first fluid with a second fluid

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Brookline, MA, United States of America

Roman Kats