古地理学报2016,Vol.18Issue(2):265-274,10.DOI:10.7605/gdlxb.2016.02.020
准噶尔盆地阜东斜坡区上侏罗统齐古组高分辨率层序分析及砂体预测
Analysis of high-resolution sequence stratigraphy and prediction of favorable sandbodies in the Upper Jurassic Qigu Formation in Fudong slope area,Junggar Basin
摘要
Abstract
The Upper Jurassic Qigu Formation is the main exploration layer in the Fudong slope area in Junggar Basin.Guided by high-resolution sequence stratigraphic theory,one long-term base level cy-cle,three mid-term base level cycles and ten short-term base level cycles are divided from Qigu Formation of Fudong slope area in Jungar Basin through outcrops,drilling cores,seismic and logging data.The long-term base level cycles have dominant compositional types of upward-deeper-shallower;upward-deeper and upward-deeper-shallower are two compositional types mainly developed in short-term and mid-term base level cycles,while upward-shallower type is not developed.Sandbodies developed in initial stage of mid-term base level cycles are favorable for reservoirs formation.In the high-resolution sequence stratigraphic framework,sedimentary system is depicted through many data,and its evolution is mainly affected by tec-tonic movements.Based on works above,favorable reservoir sandbodies in the Member 1 of Qigu Forma-tion are predicted by effective reservoir thickness,physical parameters and seismic technology of the fre-quency-divided inversion,and three targets are identified.关键词
高分辨层序地层/沉积体系/砂体预测/齐古组/阜东斜坡区/准噶尔盆地Key words
high-resolution sequence stratigraphy/sedimentary system/favorable zone prediction/Qigu Formation/Fudong slope area/Junggar Basin分类
天文与地球科学引用本文复制引用
于景维,柳妮,华国,朱永才,张宗斌..准噶尔盆地阜东斜坡区上侏罗统齐古组高分辨率层序分析及砂体预测[J].古地理学报,2016,18(2):265-274,10.基金项目
国家重大专项“大型油气田及煤层气开发”(编号2011ZX05001-005-01)资助成果。[Financing results of the important project of sci-ence and technology in developing great oil &gas field and coal bed gas (No.2011ZX05001-005-01)] ()