歧口凹陷沙三段成岩作用对储层物性贡献率研究  

Study on contribution rate on reservoir property at Es_3 in Qikou Sag

作　　者：张自力[1] 李勇[1] 张威[1] 王伟[1] 张晶[1] 肖敦清[2] 蒲秀刚[2] 袁淑琴[2] 刘刚[3] 

机构地区：[1]成都理工大学油气藏地质及开发工程国家重点实验室,四川成都610059 [2]中国石油大港油田公司勘探开发研究院,天津300280 [3]中国石油大港油田公司采油二厂,天津300280

出　　处：《地质学刊》2011年第4期354-357,共4页Journal of Geology

基　　金：中国石油大港油田分公司科技项目"歧口凹陷沙三段成岩演化动力机制与储层时空分布研究";国家自然科学基金项目(40972083;49803013;40372084;40841010);中国地质调查局应急项目和中石化前瞻性项目资助

摘　　要：为定量描述各种成岩作用对储层物性变化的影响,提出成岩综合系数(C),该系数由压实作用(α)、胶结作用(β)、溶蚀作用(γ)等3个成岩要素贡献率之和构成。通过对研究区大量岩芯薄片分析统计,经多元回归,建立各种成岩作用与孔隙度之间的关系式,得出它们对储层物性的贡献率,认为胶结作用是储层物性的主控因素。In order to describe the effects of various diagenesis on reservoir properties quantitatively, the authors put forward the diagenetic comprehensive coefficient（ C）, this coefficient was consisted of contribution rates of three diagenetic factors： compaction（α）, cementation（β） and dissolution（γ ）. Through statistical analysis of a large number of core sections of Es3 in Qikou depression, the authors established a relationship type between diagenesis and porosity with muhiple regressions, obtaining their contribution rates on reservoir properties. It was concluded that the cementation was the main controlling factor for reservoir properties.

关 键 词：成岩作用 储层物性 贡献率 成岩综合系数 歧口凹陷 河北 

分 类 号：P618.130[天文地球—矿床学]