摘要
雁翎潜山围斜油源条件优越,具备形成岩性油藏的地质条件:潜山围斜古地形起伏大,发育构造、沉积坡折,发育以北东向为主、北西向为辅的两组断裂体系;由于处于两个方向沉积体系前缘交汇部位,砂地比适中;南西、北西向物源的砂体与北东向断裂体系相匹配,易于形成构造—岩性复合圈闭。受控于特定的沉积、构造背景,雁翎潜山围斜发育3种具有该区特点的复杂断鼻、断块圈闭和以断层为主控因素的构造—岩性圈闭及受岩性上倾尖灭控制的岩性—构造圈闭;发育沉积坡折、断裂坡折和地层3种成藏模式。
The pericline area of Yanling buried hill has superior oil source conditions and it has favorable geological conditions for the formation of lithologic reservoirs. The ancient landform in the area fluctuates, structural and sedimentary slope breaks developed here, and two groups of fault systems developed, the major of which is NE and the other is NW. Because the area lies at the depositional system edge intersections, the ratio of the total thickness of sandstone to the stratigraphic thickness is moderate. The sand body of the SW and NW provenance matches the NE fault system, so it is easy to develop structural-lithologic complex traps. Controlled by particular sedimentary and structural setting, three types of traps developed in the pericline area, i.e. the fault-nose and fault-block trap with the characteristics of the area, the structural-lithologic trap taking faults as main controlling factors, and the lithologic-structural trap controlled by lithologic updip pinchout. Besides, three reservoir accumulation models developed including the accumulation model of sedimentary slope breaks, the accumulation model of fault slope breaks, and the stratigraphic accumulation model.
出处
《中国石油勘探》
CAS
2010年第2期16-18,共3页
China Petroleum Exploration
关键词
圈闭类型
油藏模式
雁翎潜山
饶阳凹陷
trap type
reservoir model
Yanling buried hill
Raoyang sag
