摘要
通过钻井、测井、地震及分析化验等资料,结合区域构造背景,以层序地层学、沉积学等理论为指导,对准噶尔盆地玛东斜坡主探目的层二叠系乌尔禾组P_2w_4进行层序地层学分析及沉积相的识别,进而研究了层序沉积体系的分布配置关系,揭示了研究区油藏的分布规律。研究认为玛东斜坡二叠系乌尔禾组P_2w_4可以划分为湖侵体系域(TST)和高位体系域(HST),主要沉积类型为扇三角洲沉积和湖泊相沉积。
Through the drilling,logging,seismic and chemical analysis data,combined with regional tectonal background,by the theory of sequence stratigraphy,,sedimentology as guidance,Junggar basin slope of main exploration target layer the Madong Wuerhe P_2w_4 recognition of sequence stratigraphy analysis and sedimentary,and then studied thedistribution configuration of depositional system,reveal the distribution law of the reservoir Studies suggest that the Madong slope Wuerhe P_2w_4 can be divided into transgressive system tract(TST)and highstand system tract(HST),the main sedimentary types of fan delta sediments and lacustrine facies deposition.
引文
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