辽河断陷高升油田L_(5)~L_(6)储层成岩作用研究  

Diagenesis of L_(5)~L_(6) Reservoir in Gaosheng Oilfield in Liaohe Fault Depression

作　　者：朱昭昭 ZHU Zhaozhao(School of Earth Sciences, Yangtze University, Jinzhou, Hubei 434021, China)

机构地区：[1]长江大学地球科学学院,湖北荆州434021

出　　处：《中国锰业》2022年第1期42-46,共5页China Manganese Industry

摘　　要：高升油田的莲5~6储层是该区块的主要含油层系,通过岩心观察和物性资料对莲5~6储层成岩作用的特征进行综合研究,结果表明其为高孔、高渗储层,处于早成岩A~B期。压实作用表现为破坏性成岩作用,其中机械压实作用强度中等,压实后孔隙损失量平均20.61%;化学压实作用会使孔喉堵塞,渗流阻力变大,孔隙损失量平均5.82%。溶蚀作用对物性有积极的改善作用,孔隙增加量平均1.15%,在有机酸的影响下,强烈的溶蚀作用形成次生孔隙,物性有变好的趋势。Lian 5-6 reservoir in the Gaosheng Oilfield is the main oil-bearing formation in the block.We have done a comprehensive study of the diagenesis characteristics of Lian 5-6 reservoir through core observation.The physical property data shows that it is a high porosity and high permeable reservoirs are in A to B stage of early diagenesis.The compaction is characterized by destructive diagenesis,in which the mechanical compaction is moderately strong,and the chemical compaction is weak.The average pore loss after compaction is 20.61%.The average amount is 5.82%.The corrosion effect has a positive effect on improving physical properties.The increase in porosity is 1.15%on average.Under the influence of organic acids,the strong corrosion effect forms secondary pores.The physical properties will tend to better.

关 键 词：辽河断陷 莲花油层 成岩作用 物性 成岩阶段 

分 类 号：P618.13[天文地球—矿床学]