Study on Factors and Characteristics of Qingshuihe Formation in Shinan Area, Junggar Basin

Reservoir characteristics and influences by diagenesis sedimentary environment of the Qingshuihe clastic formation Shinan area, Junggar Basin, are studied in this paper SEM, casting thin sections, X-ray diffraction, combining geology logging well data, providing a theoretical guide for further exploration development. The results show that Formation region interest was developed braided river front subfacies, which lithology includes grey medium-coarse-grained sandstone medium-fine-grained with some siltstone silty mudstone were mingled. In process diagenesis, compaction caused about 60% primary pore loss, cementation 20% loss. physical properties principally controlled environment, on influence is small.