武继跃;卢海娇;李浮萍;赵红格;李文厚;单敬福;

• 1:西安石油大学地球科学与工程学院

• 2:西北大学地质学系大陆动力学国家重点实验室

• 3:中国石油长庆油田分公司苏里格气田研究中心

• 4:长江大学油气资源与勘探技术教育部重点实验室

摘要(Abstract)：

为认识松辽盆地梨树断陷沙河子组层序地层与沉积体系充填类型,利用钻井、地震等资料,分析该区东南缘西丁家地区沙河子组三级层序地层划分与沉积充填特征.结果表明:通过SB1、SB2和SB3层序界面识别,沙河子组地层由下至上分为SQ1和SQ2两套三级层序.三级层序内部分为低位、湖侵和高位体系域,低位体系域的堆积方式主要表现为进积,湖侵体系域的堆积方式主要表现为退积,高位体系域的堆积方式主要表现为进积和加积.该区沉积相类型主要包括扇三角洲、辫状河三角洲和湖泊相,其中扇三角洲、辫状河三角洲相为主要沉积相类型.扇三角洲相发育在陡坡带的下降盘,受强烈沉降作用控制明显;辫状河三角洲相发育在以长轴物源为特征的缓坡带,层序发育、构造演化与沉积充填响应具有同步性.该研究结果为寻找松辽盆地东南缘深层洼陷带隐蔽油气藏、确定有利勘探方向提供依据.

关键词(KeyWords)：层序地层;层序界面;沉积相;充填响应特征;松辽盆地;西丁家地区;沙河子组

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41372125);; 湖北省教育厅基金项目(Q20121210);; 中国地质大学(武汉)构造与油气资源教育部重点实验室开放基金项目(TPR-2012-23)

作者(Author):武继跃;卢海娇;李浮萍;赵红格;李文厚;单敬福;

Email:

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