地质通报2016，Vol.35Issue(2)：448-453,6.
鄂尔多斯盆地东南部长6成岩作用及其对孔隙的影响
Diagenesis and its influence on porosity of Chang 6 reservoir in southeast Ordos Basin
摘要
Abstract
Based on such means as thin section identification, scanning electron microscope and X-ray diffraction, the authors stud⁃ied reservoir lithology, types of diagenesis and influence on pore evolution of Chang 6 reservoir in southeast Ordos Basin. The main sandstone types of Chang 6 reservoir are arkose and lithic feldspathic sandstones. Most sand grains are round-subangular and moder⁃ately sorted. The sandstone belongs to stage A of middle diagenetic stage. Diagenesis includes compaction, cementation, dissolution and metasomatism. Compaction and cementation reduced initial pore volume by 68.8%and 16.90%respectively. Later, dissolution in⁃creased pore volume by 3.67%, which was useful to oil and gas accumulation.关键词
鄂尔多斯盆地东南缘/长6/成岩作用/孔隙演化Key words
southeast Ordos Basin/Chang 6/diagenesis/pore evolution分类
地质学引用本文复制引用
范萌萌,李文厚,袁珍..鄂尔多斯盆地东南部长6成岩作用及其对孔隙的影响[J].地质通报,2016,35(2):448-453,6.基金项目
国家自然科学基金项目（批准号41330315）和陕西省自然基础研究计划 （）
