On the basis of understanding the exploration achievements and exploration difficulties of Chang 6 Reser-voir in Heshui,this paper studies the pore throat structure characteristics of Chang 6 Reservoir in Heshui by using the principles of sedimentary petrology,reservoir sedimentology and experimental reservoir sedimentology,based on the principle of comprehensive judgment,interpretation and analysis of information.The results show that the Chang 6 Reservoir develops three pore types:intergranular pore,feldspar dissolved pore and rock debris dissolved pore.The main types of larynx are flaky and curved flaky.The main pore association types are mesoporous micro throat type and small pore micro throat type.Dissolution plays a constructive role in the diagenesis developed in this area,while compaction,pressure dissolution and cementation play a destructive role.This study has important guiding significance for the understanding of pore throat microstructure and the development of reservoirs.
维普
万方数据
