Study on the Effect of Humic Acid Acetamide on the Rheological Properties of Gas-to-Liquid Based Drilling Fluids

2014 
A new type of humic acid acetamide FLHA was synthesized by chemical modification of humic acid with long chain fatty amine, and the effect of humic acid acetamide on the rheological properties of gas-to-liquid (GTL) based drilling fluids was investigated. The results indicated that FLHA had good capacity of filtration reduction under 150 °C. Moreover, FLHA can improve the stability of GTL-based drilling fluids. As a result, FLHA is an good fluid loss additive for GTL-based drilling fluids, and it can optimizate drilling fluid system formulation to make drilling fluids have good rheological properties, filtration properties and environmental protection function.
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