摘要
应用高分辨率层序地层学理论对朝1-朝气3区块扶余油层进行各级次层序划分.结果表明:扶余油层层序划分为3个级次:长期基准面旋回层、中期基准面旋回、短期基准面旋回;在目的层中划分出41个短期基准面旋回、7个中期基准面旋回(MSC1、MSC2、MSC3、MSC4 MSC5、MSC6和MSC7)及2个长期基准面旋回(长期基准面下降半旋回LSC1和长期基准面上升半旋回LSC2);然后对各级次基准面旋回下层序进行非均质性研究,得到LSC1各中、短期基准面旋回非均质性较弱,LSC2中、下部各中、短期基准面旋回非均质性较强,且各中期基准面旋回下降-上升转换面处短期基准面旋回非均质性较强.
By using high resolution sequence stratigraphic theory,ranking sequence stratigraphy is classified in the target area.There are three kinds of sequence stratigraphics in the area.They are short-term base-level cycle,middle-term base-level cycle and long-term base-level cycle.41 short-term base-level cycles,7 mid-term base-level cycles(MSC1,MSC2,MSC3,MSC4,MSC5,MSC6 and MSC7)and 2 long-term base-level cycles(long-term base-level descending half cycle—LSC1 and long-term base-level ascending half cycle—LSC2) are classified in the target research area.Then reservoir heterogeneity is studied for ranking sequence stratigraphy,the conclusion is obtained that reservoir heterogeneity of middle and shor-term base-level cycles in LSC1 is weak,that of middle and shor-term base-level cycles in middle and underside of LSC2 is strong and middle-term base-level cycles are strong on transition plane of descending and ascending in middle-term base-level cycles.
出处
《大庆石油学院学报》
CAS
北大核心
2009年第4期23-26,共4页
Journal of Daqing Petroleum Institute
关键词
高分辨率层序地层学
层序地层
非均质性
基准面
旋回
储层
high resolution sequence stratigraphy
sequence stratigraphy
heterogeneity
base level
cycle
formation
