2017年10月第36卷第5期
大庆石油地质与开发
Petroleum Geology and Oilfield Development in Daqing
DOI:10.19597/J.ISSN.1000-3754.201706063
方正断陷李家店次凹断裂特征及构造演化
姜红
（大庆油田勘探开发研究院，黑龙江大庆163712）
Oect.，2017 Vol. 36 No. 5
摘要：前人对方正断陷的研究多以三维地震资料覆盖工区为主，很少研究二维地震工区。以方正断陷南部李家店次凹二维地震资料覆盖区为基础，对李家店次凹的断裂特征进行了分析。结果表明：断层剖面特征多为“y”字形、花状、台阶状等，断层平面组合特征呈现继承性规律变化；李家店次凹构造在白垩纪经历了早期裂陷成盆阶段、中后期回返抬升阶段2个演化阶段，在新生代经历了新安村一乌云组、达连河组的再次下沉阶段、达连河沉积末期的抬升阶段、宝泉岭组的稳定沉降阶段和新近系走滑拉分阶段4个演化阶段。该研究弥补了方正断陷整体性认识上的不足，对下一步油气勘探具有指导意义。
关键调：构造演化；断裂特征；地层厚度；李家店次凹；方正断陷
文章编号：1000-3754（2017）05-0076-05
中图分类号：TE121.2
文献标识码：A
FRACTURECHARACTERISTICSANDTECTONICEVOLUTIONOF
LIJIADIAN SUBSAGINFANGZHENGFAULT DEPRESSION
JIANGHong
(Exploration and Development Research Institute of Daqing Oilfield Co Lud., Daqing 163712, China)
Abstract: The previous studies on Fangzheng Fault Depression are mainly concemed on the 3D seismic-data-cov-ered area, while the researches on 2D seismic-data-covered area are rather rare, Based on the 2D seismic-data- cov ered area of Lijiadian Subsag in the south of Fangzheng Fault Depression, the fracture characteristics of Lijiadian Subsag were analyzed. The results show that the fault profile features are mostly presented in Shape“y", flower-form, Shape step etc, and the characteristics of the fault plane combination show the inheritance variation; the sub-sag Cretaceous structures have experienced the following two evolutionary stages: the early rfting and basin forma-tion stage and the middle and late returning and uplifting; and in Cenozoic era, the structures went through four ev olutionary stages : subsided again for Xin'ancun-Wuyun and Dalianhe Formations, uplifted in the late Dalianhe dep osition, steadily settled in Baoquanling Formation and strike-slipped and pulled-apart in Neogene. The researches have made up the limitation on the whole understandings about Fangzheng Fault Depression and furthermore possess the guiding significance for the next exploration of the oil and gas.
Key words: tectonic/structural evolution; fracture characteristic; formation thickness; Lijiadian Subsag; Fang
收稿日期：2017-06-29
改回日期：2017-08-21
(2017ZX03001-002)。
作者简介：姜红，女，1985年生，工程师，从事科研及成果管理工作。
E-mail: jianghong139@ petrochina. com, en
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