中国石油大学学报（自然科学版）2018，Vol.42Issue(3)：41-49,9.DOI:10.3969/j.issn.1673-5005.2018.03.005
输导脊中转能力定量表征及在渤海东部油气勘探中的应用
Quantitative description of transfer capability of transporting ridges and its implication in hydrocarbon exploration in eastern area of Bohai Sea
摘要
Abstract
Based on the study of hydrocarbon migration conditions in the eastern area of Bohai Sea,models of lateral accumu-lation and vertical transfer of transporting ridges for buried hill unconformity and body sands in the bottom of the Guantao for-mation were established,and further quantified the transfer capacities for shallow Neogene accumulation. The results show that the accumulation capacity of buried hill unconformity is related to contact size between source rock and ridge,ridge dip and trap area on the ridge. An index of accumulation(Ia) for transporting ridge is introduced which combines known oilfields data. A ten-million-tons class Neogene oilfield above the buried hill can be predicted if Iais bigger than 30 km·km2. Trans-fer capacity of sand body ridge in the Guantao formation is controlled by the trap area on the ridge,ridge dip,configuration between ridge and fault,and fault activity. A non-dimensional index of difference(Id) and an index of transfer(It) are es-tablished from successful reservoirs to show that the transfer capacity of sand ridge becomes beneficial for shallower accumula-tion if Idis smaller than 0.5 and Itis larger than 100. The study provides insights into quantitative description of transporting ridge'transfer capacity,and has proven a successful implication in the Neogene exploration of slope zones in the eastern area of Bohai Sea.关键词
渤海东部新近系/潜山不整合面/骨架砂体/输导脊中转能力/定量表征Key words
Neogene in eastern area of Bohai Sea/unconformity of buried hill/body sand/transfer capacity of transporting ridge/quantitative description分类
能源科技引用本文复制引用
张宏国,徐长贵,官大勇,刘朋波,苏凯,程燕君..输导脊中转能力定量表征及在渤海东部油气勘探中的应用[J].中国石油大学学报（自然科学版）,2018,42(3):41-49,9.基金项目
"十二五"国家科技重大专项(2011ZX05023-006-002) （2011ZX05023-006-002）
