中南大学学报（自然科学版）Issue(6)：2162-2170,9.DOI:10.11817/j.issn.1672-7207.2015.06.026
渤南洼陷沙四上亚段多类型储集体沉积成岩差异性分析
Analysis of differences about sedimentation and diagenesis of multi-type reservoir in upper part of Es4 in Bonan sag
摘要
Abstract
Thegenetic mechanism and diagenesis evolution about multi-type reservoir in the upper part of Es41 in Bonan Sag are complex and are still poorly understood. To solve these problems, based on comprehensive analysis of drilling data, logging data and analysis testing data, a contrast study was carried out about sedimentation and diagenesis of moderate salt lake basin and multiple salt lake basin that developed in early stage and later stage of Es41in Bonan Sag, and predicted the favorable reservoirs. The results show that obvious differences exist about climate, water body and palaeogeo morphology in moderate salt lake basin and multiple salt lake basin at depositional stage, that controlled by alkali halide from gypsum, the two types of lake basins undergo alternately diagenetic environment of acid and alkali, and the multiple salt lake basin is influenced by alkali halide more seriously. The intensity of diagenesis is different between moderate salt lake basin and multiple salt lake basin at different diagenesis stage, the sandstone beach bar and fan delta front are favorable reservoirs in moderate salt lake basin and near-shore subaqueous fan front and fan delta front are favorable reservoirs in multiple salt lake basin, the depth range between 2 800 m and 3 300 m is influenced by alkali halide more serious and there exist no favorable reservoirs, which should be kept away when seeking favorable reservoir.关键词
沉积-成岩差异性/多类型储集体/沙四上亚段/渤南洼陷Key words
differences about sedimentation and diagenesis/multi-type reservoir/upper part of the Es4/Bonan sag分类
天文与地球科学引用本文复制引用
于洋,刘鹏,宋国奇,刘雅利..渤南洼陷沙四上亚段多类型储集体沉积成岩差异性分析[J].中南大学学报（自然科学版）,2015,(6):2162-2170,9.基金项目
国家重大科技专项(2011ZX05006)(Project (2011ZX05006) supported by Important National Science and Technology Specific Project) （2011ZX05006）
