探究抗温抗钙增粘提切剂与表面活性剂协同增效机制

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中图分类号：TQ431;TQ423 文献标志码：A 文章编号：1001-5922（2026）1-0112-05

Abstract： A viscosity-increasing polymer ZNJ was developed. which can resist temperatures up to 150‰ and calcium up to 30% .The study found that its compounding with surfactants can further improve the temperature resistance effect.After adding the composite to the well completion fluid system containing 30% （20 CaCl2 and aging at 180qC for （204号 16h . the apparent viscosity（AV） can reach 34mPa⋅s. the yield point（YP）can reach 10Pa . and the dynamic plasticratio can reach O.43.with simple method and remarkable effect.The analysis suggests that the supramolecularinteraction between the viscosity-increasing polymerand thesurfactant plays apositiveroleinmaintaining the viscosity of the compositesystemunder high temperature.high salinityand high calcium conditions.The study shows that the composite viscosity-increasing and shear-improving agent has strong temperature and salt resistance.which providesaresearch basis and innovative idea for thepreparation of solid-free driling and completion fluids with high rock-carrying capacity.

Key words：solid-free;viscosity and shearing improving agent;surfactant

为满足深井超深井完井需求，氯化钙、氯化钠、溴化钙、溴化锌以及它们的混合物等被用作加重剂，保证体系密度。（剩余7948字）