松辽盆地梨树断陷营城组源汇体系研究  

Study on the Source-Sink System of Yingcheng Formation in Lishu Fault Depression,the Songliao Basin

作　　者：范雪松 樊太亮[1] 王宏语[1] Fan Xuesong;Fan Tailiang;Wang Hongyu(China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国地质大学(北京),北京100083

出　　处：《特种油气藏》2018年第4期12-17,共6页Special Oil & Gas Reservoirs

基　　金：国家科技重大专项"复杂油气田地质与提高采收率技术"(2011ZX05009)

摘　　要：针对松辽盆地梨树断陷营城组物源与沉积体系研究不精细,相互之间关系不明确的问题,运用源汇体系综合分析方法,利用钻井岩性统计对比、地震相分析及沉积体系展布特征等手段,明确了梨树断陷营城组源汇体系特征。研究结果表明:营城组沉积期存在东南部物源和北部物源;沟渠主要发育在断层调节带及坡折带处,控制了沉积体系的展布。总结出盆缘陡坡型、盆缘缓坡型、多级断裂坡折型和断裂交互型4类陆相断陷源汇耦合模式。该研究对类似盆地的源汇体系研究具有指导意义。The provenances and sedimentary systems of Yingcheng Formation in Lishu fault depression of the Songliao Basin are not studied precisely and their relationships are not defined clearly.In this paper,the characteristics of source-sink system of Yingcheng Formation in Lishu fault depression were figured out by means of comprehensive source-sink system analysis method,combined with statistical analysis of drilling lithology,seismic facies analysis,distribution characteristic of sedimentary system,etc.And the following research results are obtained.First,there are two provenances during the sedimentation of Yingcheng Formation,i.e.,southeastern provenance and northern provenance.And second,ditches are mainly developed at fault accommodation zones and slope break belts and they control the distribution of sedimentary systems.Four source-sink coupling modes of continental fault depression are established,including basin-margin steep slope mode,basin-margin gentle slope belt,multi-stage faulted slope break mode and fault alternative mode.The research plays the instructive role in studying the source-sink systems of similar basins.

关 键 词：源汇体系 梨树断陷 物源 坡折带 沉积体系 

分 类 号：TE121.3[石油与天然气工程—油气勘探]