摘要
Abstract
Through the field outcrop, systematic observation and sampling of drilling core, and using testing methods such as high pressure mercury intrusion experiment, the pore structure characteristics analysis of coal reservoir at Longtan formation in Liupanshui area was done, the classification of pores was done as well. The results showed that: based on the mercury withdrawal curve shape, pore structure types at Longtan formation in Liupanshui area could be divided into two categories: wide and large hysteresis loop and closed hysteresis loop.The pore diameters of coal reservoir at Longtan formation in Liupanshui area are mainly the nanometer grade pores whose diameters are equal to or under 0.1μm, meanwhile, the connectivity is good.关键词
微观孔隙结构/煤储层/龙潭组/六盘水/高压压汞实验/进退汞曲线Key words
microscopic pore structure/coal reservoir/Longtan formation/Liu panshui/high pressure mercury intrusion experiment/mercury withdrawal curve shape分类
化学化工
