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探究新安边油区DZ6497井区延安组延10储层特征,为研究区科学有效的开采提供依据。在储层、沉积相等地质资料研究的基础上,运用实验分析数据对储层特征进行综合分析。研究区延10储层成岩作用主要有胶结作用、压实作用、压溶作用、溶解作用及交代作用等。压实、压溶、胶结作用对储层孔隙起着破坏性作用,溶解作用起着使储层孔隙增大的作用。压实作用中的刚性颗粒发生破裂而产生的微裂缝,对特低渗储层储集性能的改善具有积极的意义。
The characteristics of Yan 10 reservoir of Yan’an Formation in DZ6497 well area in Xin’anbian Oilfield are explored to provide the basis for the scientific and effective mining in this area. Based on the study of reservoir and sedimentary equivalent geological data, the reservoir characteristics are comprehensively analyzed by using experimental analysis data. The diagenesis of Yan 10 reservoir in the study area mainly includes cementation, compaction, pressure solution, dissolution and accountability. Compaction, pressure solution, cementation play a devastating effect on the reservoir porosity, dissolution plays a role in increasing the porosity of the reservoir. The micro-cracks generated by the rupture of the rigid particles during compaction have a positive meaning for the improvement of the reservoir performance of the ultra-low permeability reservoir.