Geochemical and mechanical characterization of organic matter in shale

A photomicrometer was utilized to identify organic type and to determine vitrinite reflectance. Reduced modulus of organic matter was measured by nanoindentation. IR (D/G) means the intensity ratio of D peak to G peak of Raman spectrum. A total of 114 test areas in four shale samples from Bonan Sub-sug in Bohai Bay Basin, China were selected for testing.采用显微光度计（photomicrometer）识别有机质类型并测定镜质体反射率；通过纳米压痕（nanoindentation）测试有机质的约化模量。IR (D/G) 指代拉曼光谱中D峰与G峰的强度比值。本次测试共选取中国渤海湾盆地渤南洼陷的4块页岩样品中的114个测试区域开展测试。