特种油气藏2012,Vol.19Issue(3):39-42,4.DOI:10.3969/j.issn.1006-6535.2012.03.009
东营凹陷北部陡坡带沙河街组四段砂砾岩成岩作用
Glutenite diagenesis in the fourth member of Shahejie formation in the north slope of Dongying depression
摘要
Abstract
Based on available data and cast thin section observation, it is found that glutenite is the dominant lithology in the fourth member of Shahejie formation in the north slope of Dongying depression; sandstone mainly includes lithic arkose, feldspathic li-tharenite and arkose; interstitial materials are mainly calcareous and siliceous cements and muddy matrix; and both texture maturity and compositional maturity are low. The types of diagenesis include compaction, cementation, metasomatism and dissolution, of which the first two types damage reservoir pore space, while dissolution can significantly improve reservoir property.关键词
成岩作用/砂砾岩/沙河街组/北部陡坡带/东营凹陷Key words
diagenesis/ glutenite/ Shahejie formation/ north slope/ Dongying depression分类
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万欢,黄文辉,王华军..东营凹陷北部陡坡带沙河街组四段砂砾岩成岩作用[J].特种油气藏,2012,19(3):39-42,4.基金项目
国家重大专项“油气勘探新领域地层地质与油气评价”(2009ZX05009-005) (2009ZX05009-005)