渝西区块深层页岩气钻完井废弃物处理技术
Waste Treatment Technology for Deep Shale Gas Drilling and Completion in Yuxi Block

针对深层页岩气井钻井废液和压裂返排液重金属离子现场实时检测难、钻井废液和压裂废液产出量大，现场回用处理效率低、油基岩屑无害化治理与资源化利用成本高等环保工程难题，建立了重金属离子现场实时快速检测的高通量进样与定量分析方法，研发了高精度、高通量和高信噪比的现场检测设备，建立了压裂返排液新型光催化剂处理技术，提出了油基岩屑源头减量措施，研发了油基岩屑源头减量处理装备，技术应用实现了渝西区块深层页岩气钻完井废弃物的高效治理。
In response to the difficulties of real-time on-site detection of heavy metal ions in drilling waste liquid and fracturing backflow fluid of deep shale gas wells, the large output of drilling waste liquid and fracturing waste liquid, the low efficiency of on-site reuse treatment, and the high cost of harmless treatment and resource utilization of oil-based drill cuttings, a high-throughput injection and quantitative analysis method for real-time and rapid on-site detection of heavy metal ions has been established. High precision, high-throughput, and high signal-to-noise ratio on-site detection equipment has been developed, and a new photocatalyst treatment technology for fracturing backflow fluid has been established. Measures for reducing the source of oil-based drill cuttings have been proposed, and equipment for reducing the source of oil-based drill cuttings has been developed. The technology has been applied to achieve efficient treatment of deep shale gas drilling and completion waste in the Yuxi block.