中国石油大学学报（自然科学版）2018，Vol.42Issue(3)：31-40,10.DOI:10.3969/j.issn.1673-5005.2018.03.004
苏丹穆格拉德盆地福拉凹陷AG1层低阻油层形成机制及其控制因素
Formation mechanisms and controlling factors of low resistivity pays of AG1 layer in Fula Sag, Muglad Basin, Sudan
摘要
Abstract
Comprehensive data analyses were applied to study and categorize the formation mechanisms of low resistivity pays. Accordingly,the mechanismsare summarized as high mud content,complex pore structure,conductive minerals,addi-tive conductive caused by clay minerals and insufficient hydrocarbon incharge,respectively. The well log responses of differ-ent types of low resistivity pays and the distribution of different types were studied. Then reservoir characteristics of AG1 lay-er of different oilfields were studied simultaneously with the distribution of different low resistivity pay categories. Several fac-tors were found to be the controlling factors of low resistivity pays,including sedimentary,diagenesis,sedimentary-diagene-sis,and hydrocarbon accumulation. The first three factors affect the low resistivity pays through the control on the shale con-tent,the conductive cement content and the complexity of pore structure,and the clay mineral content and the distribution of effective reservoir,respectively. The hydrocarbon accumulation factor mainly controls the distribution of low resistivity pays when hydrocarbon incharge was insufficient. Because of these different reservoir characteristics and controlling factors, the distribution of different categories varies in the four oil fields.关键词
福拉凹陷/低阻油层/成因分类/控制因素Key words
Fula Sag/low resistivity pay/formation category/controlling factors分类
能源科技引用本文复制引用
韩如冰,田昌炳,马思,李顺明,何辉,杜宜静..苏丹穆格拉德盆地福拉凹陷AG1层低阻油层形成机制及其控制因素[J].中国石油大学学报（自然科学版）,2018,42(3):31-40,10.基金项目
国家科技油气专项(2011ZX05009-003) （2011ZX05009-003）
