Title: New field procedures improve KCl/polymer drilling mud results
Abstract: Recent developments in potassium/polymer drilling fluids now make them a realistic alternative to oil-based systems. This article describes the design, handling, and results from a new KCl fluid with unprecedented polymer concentration. The ability of the potassium cation to inhibit clay hydration effectively with the encapsulating characteristics of the longer chain anionic polymers is proving to be simple and effective in the drilling of troublesome hydratable shales. Water-sensitive shales cause expensive problems and may defeat the purpose of drilling an economical well. Clay hydration can produce drilling problems such as stuck pipe, well bore instability, torque, drag, fill, and solids buildup in the drilling fluid. Completion problems also can result without the proper application of an inhibitive drilling fluid.
Publication Year: 1986
Publication Date: 1986-07-01
Language: en
Type: article
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Cited By Count: 1
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