引用本文:[点击复制]
[点击复制]
【打印本页】 【在线阅读全文】【下载PDF全文】 查看/发表评论下载PDF阅读器关闭

←前一篇|后一篇→

过刊浏览    高级检索

本文已被:浏览 85次   下载 93 本文二维码信息
码上扫一扫!
准噶尔盆地乌夏地区压扭断裂带发育特征及其组合样式分析
王建伟,廖伟,曾治平,赵乐强,曹建军,郭瑞超,周健,马骥
0
(1.中国石化胜利油田分公司勘探开发研究院,山东东营257015;2.中国石油新疆油田分公司呼图壁储气库作业区,新疆克拉玛依834000)
摘要:
压扭断层的几何学特征及其演变规律较为复杂,需要不断深化认识,这对西部压扭盆地具有很大的油气勘探实践意义。野外露头区勘查和高密度三维地震数据体处理成果揭示,准西北缘乌夏地区发育的高角度逆冲断层普遍具有走滑特点,并伴有多组系次级剪切断层,从而形成典型压扭断裂带。碎屑岩层系能干性差异控制压扭断层垂向脱耦传播和分段发育,构造活动强度变化进一步控制断层发育组系及其组合样式的变化。自深层至浅层随着压扭强度的逐渐减弱,压扭断裂带在剖面上存在“辫”、“花”和“阶”状3种基本组合样式,对应平面上呈“网结”、“羽列”和“雁列”状展布。已发现油气田剖析结果表明,不同组合样式断层的油气垂向输导能力存在很大差异,是控制压扭叠合盆地油气资源空间分布的关键因素。
关键词:  压扭断层  组合样式  油气输导  乌夏地区  准噶尔盆地
DOI:10.13673/j.cnki.cn37-1359/te.2020.06.001
基金项目:中国石化科技重大专项“中西部陆相页岩油资源潜力与目标评价”(P20049-4)。
Development characteristics and geometric pattern analysis of compression-torsion fault zone in the Wuxia area of Junggar Basin
WANG Jianwei,LIAO Wei,ZENG Zhiping,ZHAO Leqiang,CAO Jianjun,GUO Ruichao,ZHOU Jian,MA Ji
(1.Exploration and Development Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China;2.Hutubi Gas Storage Operation Area,Xinjiang Oilfield Company,CNPC,Karamay,Xinjiang,834000,China)
Abstract:
The geometric characteristics of compression-torsion faults and their evolutionary laws are complex and need to be further understood,which is of great practical significance for oil and gas exploration in western compression-torsion basins. It is revealed by the field outcrop exploration and high-density 3D seismic data process result that the high-angle thrust faults are characterized by notable strike slip accompanied by multiple series of secondary shear faults,forming a typical compression-torsion fault zone in Wuxia area in the northwestern margin of Junggar Basin. The competence difference of clastic rocks controls the vertical decoupling propagation and segmented development of the compression-torsion fault.The intensity of tectonic activity controls the fault development series and geometric patterns. The profile geometric patterns of compression-torsion faults are identified in“braided”,“flower”,and“step”shapes,corresponding to the plane distribution patterns of“network”,“plume”,and“echelon”from deep to shallow layers with the gradual decline in intensity.The discovered oil and gas reservoirs cast light on the significant differences in vertical oil and gas transmission capacity of compression-torsion faults with different geometric patterns,which is a controlling factor for the spatial distribution of oil and gas resources in the compression-shear basin.
Key words:  compression-torsion faults  geometric pattern  oil and gas transmission  Wuxia area  Junggar Basin

用微信扫一扫

用微信扫一扫