摘要
东营凹陷北部陡坡带是多期、多种应力方式作用下形成的复杂断裂构造带 ,控制辫状河三角洲、扇三角洲、洪积扇、近岸水下扇、陡坡深水浊积扇和近岸砂体前缘滑塌浊积扇等 6种沉积体系发育 ,发育了 3种构造岩相带 :铲式陡坡断裂冲积扇、扇三角洲和小型辫状河三角洲构造岩相带 ,潜山台地陡坡断裂带洪积扇、扇三角洲构造岩相带 ,阶梯式陡坡断裂带小型洪积扇、滑塌浊积扇和深水浊积扇构造岩相带 ;有砂体上倾尖灭、差异压实背斜、断层封闭遮挡、薄泥岩封盖和浊积岩透镜体等 5种成藏模式。研究陆相断陷湖盆陡坡带对沉积体系的控制作用 ,对预测复杂岩性油藏分布有重要意义。图 2参
The steep slop structure and lithological zone in the Dongying Sag is a complex fault zone developed under the multi periods and multi stress styles, which controlled the developments of six deposit system such as braided river delta, fan delta, diluvia fan, neritic underwater fan, steep deepwater turbidity fan and slump turbidity fan of neritic front sand and three structure facies bands such as shovel like steep fault alluvial fan, fan delta and small braided river delta and three structure rock facies such as diluvia fan on steep slope fault band of burial hill and bench terrace, fan delta, small ladder like diluvia fan on steep slope fault band, slump turbidity fan and steep deepwater turbidity fan. The pooling model could be summarized as 5 patterns of forming reservoir such as sand updip and nip, anticline, fault sealing barrier, thinner mud coat and turbidity lens. The results would be of important to forecast complex lithological pool.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2003年第4期10-12,共3页
Petroleum Exploration and Development
基金
国家"十五"攻关项目 ( 2 0 0 1BA60 5A0 9)
关键词
东营凹陷
陡坡带
沉积模式
构造岩相带
成藏模式
Dongying Sag
steep slop
sedimentary model
structure and lithological zone
pooling model
