Characteristics and utilization route discussion of quartz sandstone in Muchuan area of Sichuan Province
ZHANG Hangfei1,2, HAN Xiaoying3, YANG Linlong4, ZHONG Qiangsheng1, CHEN Dongfang1
1. No. 207 Geological Team, Sichuan Bureau of Geology and Mineral Resources, Sichuan Leshan 614000, China; 2. Zhangjinyuan Model Innovation Studio, Sichuan Leshan 614000, China; 3. College of Mining Engineering, North China University of Science and Technology, Hebei Tangshan 063210, China; 4. Research Institute of Petroleum Exploration and Development,Shengli Oilfield Ranch Co.,SINOPEC,Shandong Dongying 257000,China
Abstract：The quartz sandstone reserves in Muchuan area of Sichuan Province are huge and the mining technology is good. The raw ore samples from the mine tunnel and the industrial products from the mine pilot test base were collected for geochemical, schist ore identification and flow conductivity testing. The characteristics of quartz sandstone in Muchuan area were studied and the exploitation and utilization ways were discussed. The ore is mainly medium-grained lithic quartz sandstone with dense massive structure, and the mineral composition of the ore is dominated by terrigenous debris such as quartz and siliceous rock debris, with a small amount of interstitial materials such as clay and quartz cement. The breakage rate of 40/70 mesh industrial grade quartz sand samples is 9.05% under the condition of 28 Mpa closing pressure, and the conductivity capacity is 1.12 μm2·cm under the closure pressure of 70 Mpa, which meets the requirements of the conductivity of the main fracture of shale gas wells in Sichuan Basin. There are four applications of quartz sandstone ore products in Muchuan area, including phosphorus chemical industry, glass industry, molding sand for casting, and fracturing proppant. It is necessary to strengthen the evaluation of quartz sandstone fracturing proppant, and comprehensively develop and utilize quartz sandstone mineral resources in Muchuan arca to ensure the sand source localization of the proppant industry.
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2023, Vol. 10 
