This study aims to resolve some existing limitations of geothermal drilling and exploration of high-temperature drilling fluid systems, such as complex formulation, inconvenient preparation, inappropriate selection of additives, unstable high-temperature performance, and high costs, through theoretical, experimental, and microstructural analysis. The slurry-making ability of several relevant clay minerals were theoretically analyzed based on their slurry-making performance and rheological behavior under various high-temperature environments (i.e., 180, 200, and 220 °C). Rectorite was selected as the appropriate slurry-making clay mineral and was modified organically using a single colloidal material (LP). In addition, suitable high-temperature additives were selected to improve the performance of the drilling fluid system by reducing filtration loss and preventing borehole collapse during geothermal drilling. The proposed drilling fluid system exhibited a simple system structure, excellent rheological performance under high temperatures, reduced filtration loss, and inhibitory and anti-pollution characteristics. The microstructure of rectorite was analyzed using x-ray diffraction, infrared spectrometry, and environmental scanning electron microscopy. It was verified that the microstructural mechanisms improved the temperature resistance of the drilling fluid system, thus helping to solve the critical problems in high-temperature geothermal well drilling and other production processes.

本研究旨在通过理论、实验和研究，解决地热钻井和高温钻井液体系勘探存在的配方复杂、制备不方便、添加剂选择不当、高温性能不稳定、成本高等问题。微观结构分析。根据几种相关粘土矿物在各种高温环境（即180、200和220°C）下的制浆性能和流变行为，对其制浆能力进行了理论分析。蒙脱石被选为合适的制浆粘土矿物，并使用单一胶体材料 (LP) 进行有机改性。此外，选择合适的高温添加剂，通过减少地热钻井过程中的滤失和防止井眼坍塌来提高钻井液系统的性能。所提出的钻井液体系具有体系结构简单、高温流变性能优良、滤失量小、抑制和抗污染等特点。使用X射线衍射、红外光谱和环境扫描电子显微镜分析了蒙脱石的微观结构。经验证，微观结构机制提高了钻井液体系的耐温性，有助于解决高温地热钻井等生产过程中的关键问题。所提出的钻井液体系具有体系结构简单、高温流变性能优良、滤失量小、抑制和抗污染等特点。使用X射线衍射、红外光谱和环境扫描电子显微镜分析了蒙脱石的微观结构。经验证，微观结构机制提高了钻井液体系的耐温性，有助于解决高温地热钻井等生产过程中的关键问题。所提出的钻井液体系具有体系结构简单、高温流变性能优良、滤失量小、抑制和抗污染等特点。使用X射线衍射、红外光谱和环境扫描电子显微镜分析了蒙脱石的微观结构。经验证，微观结构机制提高了钻井液体系的耐温性，有助于解决高温地热钻井等生产过程中的关键问题。红外光谱和环境扫描电子显微镜。经验证，微观结构机制提高了钻井液体系的耐温性，有助于解决高温地热钻井等生产过程中的关键问题。红外光谱和环境扫描电子显微镜。经验证，微观结构机制提高了钻井液体系的耐温性，有助于解决高温地热钻井等生产过程中的关键问题。