With increasing concentration of HATA, the apparent viscosity (AV), plastic viscosity (PV), and yield point (YP) of the drilling fluid, both before and after aging, exhibited a consistent upward trend, while the API fluid loss and HTHP fluid loss showed a decreasing trend.
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Regulating the Rheology of Drilling Fluids Under High-Temperature Conditions with Hydrophobically Associating Polymers.
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