Article ID Journal Published Year Pages File Type
1755634 Journal of Petroleum Science and Engineering 2011 4 Pages PDF
Abstract

The present work had the purpose of developing a new class of polymeric additives for water based drilling fluid. The additives were obtained through the copolymerization of acrylamide, acrylic acid and sodium 4-styrenesulfonate (SSS) by inverse microemulsion polymerization. Solution and drilling fluid properties of water-based polymeric drilling fluids were investigated. Results indicate that SSS content in the polymeric drilling fluids has an important impact on the rheological properties, filtrate loss and filter cake morphologies of the polymeric drilling fluid, and the water-based polymeric drilling fluid has a high value of yield point to plastic viscosity, high viscosity, excellent shear thinning and thixotropic behavior, good thermal stability and salt resistance. Hence, it can be used as polymeric drilling fluid under the salty and high temperature environment.

► An ecologically-friendly water-based drilling fluid was developed. ► Effects of SSS content on the polymeric drilling fluid properties were discussed. ► Water-based drilling fluid can be used under salty and high temperature conditions.

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Physical Sciences and Engineering Earth and Planetary Sciences Economic Geology
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