摘要
为了研究含油气盆地断裂发育区油气分布规律,在断裂向上和向下输导油气所需条件研究的基础上,通过断裂向上和向下输导油气特征对比,对断裂向上和向下输导油气特征的差异性进行了研究。结果表明:断裂向上输导油气的有利部位是断裂的凸面脊,断裂向下输导油气的有利部位是断裂的凹面脊;断裂向上输导油气的距离是距区域性盖层的距离,且随区域性盖层位置变化而变化,断裂向下输导油气的距离决定于上覆源岩的生油能力,小于一个定值;断裂向上输导油气侧向分流层位是区域性盖层上下的高砂地比地层,断裂向下输导油气侧向分流层位是靠源岩近的砂体。
In order to study the oil and gas distributions in the fracture developed block of the hydrocarbon-bearing basin,on the basis of the researches on the conditions required to the upward and downward transportations of the oil and gas,the differences in the petroleum two-transportation characteristics were studied through the comparison between the two transportation of the hydrocarbon. The achievements show that the favorite position of the fault upward transportation of the oil and gas is the convex ridge of the fault,while for the downward transportation,the favorable position is the concave ridge of the fault; the distance for the oil and gas transportation with the help of the fault is the distance to the regional caprock,and moreover is varied with the change of the position of the caprock,while the downward distance for the petroleum transportation is determined by the oil-generating capacity of the upper overlying source rock and furthermore the value is less than a certain set point; The lateral shunt layers of the upward transportation are the high sand-formation ratio formations above and under the regional caprock,while the lateral shunt layer of the downward transportation is the sandbodies near to the source rock.
作者
万雪峰
WAN Xuefeng(No. 3 Oil Production Plant of Daqing Oilfield Co Ltd., Daqing 163113, China)
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2018年第3期16-21,共6页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然基金项目"油源断裂转换带优势输导运移油气条件研究"(41372153)
关键词
断裂
向上输导
向下输导
输导特征
差异性
fault
upward transportation
downward transportation
transportation characteristic
difference
