碎屑岩储层成岩作用的影响因素

Analysis on influencing factors of diagenesis in clastic reservoir

碎屑岩储层是中国油气资源的最重要储层类型,加强碎屑岩储层的成岩作用研究对油气资源评价、油藏开发具有重要的指导和实践意义。探讨了碎屑岩成分、沉积环境和沉积相、温压场、地质流体以及埋藏作用等因素对碎屑岩储层成岩作用的影响,讨论了碎屑岩储层成岩作用的主要影响因素及优质储层形成条件。通过研究发现,碎屑岩成分、沉积环境和沉积相是成岩作用的基本条件,对成岩作用有决定性影响;温压场、地质流体是影响成岩作用的关键因素,对储层原生孔隙保存以及次生孔隙的形成有重要作用;埋藏作用对储层孔隙度演化有重要影响。

Clastic reservoir is the most important reservoir type of oil and gas resources in China.Thorough research of diagenesis of the clastic reservoir has guiding and practical significance for resources evaluation and development of oil-gas resources in China.The influences of clastic composition, sedimentary environment and sedimentary facies,temperature -pressure fields,geological fluid and burial process,etc,on the diagenesis of clastic reservoir were discussed.It provides some theoretical basis for reservoir evaluation and formation condition analysis of high-quality reservoirs.