文西断裂带高分辨率层序地层学特征  

The High Resolution Sequence Stratigraphic Characteristics of Wenxi Fault Zone

作　　者：李存贵[1] 薛国刚[1] 张辉[1] 窦焕成[1] 马喜斌[1] 

机构地区：[1]中原油田高新股份有限公司采油四厂

出　　处：《断块油气田》2005年第4期5-7,共3页Fault-Block Oil & Gas Field

摘　　要：应用高分辨率层序地层学理论与方法,通过岩性剖面、测井曲线、地震剖面等资料进行层序边界识别,将该区主要含油层系沙二下、沙三上和沙三中亚段划分为4个层序27个准层序组。准层序叠加样式有基准面上升、可容空间增大时的三角洲前缘、前三角洲沉积,基准面旋回下降、可容空间减小时的前三角洲、三角洲前缘沉积,基准面上升、可容空间增大时的漫湖沉积,基准面下降、可容空间减小时的漫湖沉积。准层序组层序叠加样式包括退积—进积对称型、进积非对称型和退积非对称型。建立了3种层序模式:地垒带层序地层学模式、断阶带层序地层学模式和地堑带层序模式。Applying the high resolution sequence stratigraphic theory and method,carrying on sequence border distinguish with lithological section,well logging profiles and seismic data ,the fundmental oil-bearing of this region,which the lower part of the member 2(Es_2) 、the upper and middle part of the member 3(Es_3) of the Shahejie Formation, have been identified 4 sequences and 27 penesequence suites .Penesequence upgrading styles inclusion delta front sedimentation,prodelta sedimentation and flood plain sedimentation when base level ascend,capacitiable volume increase and base level fall,capacitiable volume decrease .Penesequence suites upgrading styles holds overlap-onlap symmetric form,onlap asymmetric form and overlap asymmetric form . Founded three bed succession types: horst zone,fault zone of fracture stratigraphic forms and graben zone sequence.

关 键 词：文西断裂带 层序地层学 准层序组层序 体系域 高分辨率层序地层学 层序地层学模式 三角洲沉积 基准面旋回 三角洲前缘 可容空间 

分 类 号：TE121.2[石油与天然气工程—油气勘探] P618.130.2[天文地球—矿床学]