坡折带砂体成因及分布规律——以准噶尔盆地车排子地区下白垩统清水河组为例

doi:10.3969/j.issn.1673-8926.2017.01.005

岩性油气藏 ›› 2017, Vol. 29 ›› Issue (1): 35–42.doi: 10.3969/j.issn.1673-8926.2017.01.005

坡折带砂体成因及分布规律——以准噶尔盆地车排子地区下白垩统清水河组为例

李啸^1,2, 刘海磊¹, 王学勇¹, 卞保力¹, 杨帆³, 陈刚强¹

1. 中国石油新疆油田分公司勘探开发研究院, 新疆克拉玛依 834000;
2. 西南石油大学地球科学与技术学院, 成都 610500;
3. 中国石油勘探开发研究院, 北京 100083

收稿日期:2016-09-25 修回日期:2016-11-18 出版日期:2017-01-21 发布日期:2017-01-21
第一作者:李啸(1988-),男,工程师,主要从事油气地质与勘探等方面的研究工作。地址:(834000)克拉玛依市克拉玛依区准噶尔路29号中国石油新疆油田分公司勘探开发研究院。Email:lixiao2@petrochina.com.cn。
基金资助:
国家重大科技专项“准噶尔盆地岩性地层油气藏富集规律与目标评价”（编号:2011ZX05001-06）和中国石油重大科技专项“富烃凹陷岩性地层油气藏富集规律与关键技术研究”（编号:2012E-34-01）联合资助

Origin and distribution of sandbody in slope break zone：a case study of the Lower Cretaceous Qingshuihe Formation in Chepaizi area,Junggar Basin

LI Xiao^1,2, LIU Hailei¹, WANG Xueyong¹, BIAN Baoli¹, YANG Fan³, CHEN Gangqiang¹

1. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, Xinjiang, China;
2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
3. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China

Received:2016-09-25 Revised:2016-11-18 Online:2017-01-21 Published:2017-01-21

摘要/Abstract

摘要： 富烃凹陷坡折带是地层-岩性油气藏勘探的一个重要领域。准噶尔盆地车排子地区清水河组富烃凹陷共发育4 级坡折带和6 期坡折带控制下的地层超覆带，为了研究清水河组坡折带砂体的成因与分布，利用钻井、岩心、地震属性等资料刻画出目的层沉积相，并结合层序地层学、古地貌恢复等技术，探讨车排子地区清水河组规模砂体发育成因与主控因素，落实砂体富集区带及勘探有利区。结果表明，清水河组主要发育曲流河三角洲和滨浅湖2 种沉积相，总体表现出“贫砂富泥”的沉积特征；有利储集砂体分布局限，主要受4 个因素控制，即幕式挤压形成的“二元”（冲断挤压—应力释放）体系域、沉积相带、沟谷地貌、坡折带。坡折带之下沟谷地貌中低位体系域发育的三角洲前缘亚相是有利砂体富集带，也是规模油气发现的主要领域。

关键词: 地震沉积学, 地层切片, 滩坝砂体, 白杨河组, 酒西盆地

Abstract: The slope break zone in hydrocarbon-abundant depression is an important exploration area for stratigraphic reservoirs. Stratigraphic overlap controlled by four different levels of slope break zone in six stages is developed in Qingshuihe Formation in Chepaizi area,Junggar Basin. In order to investigate the controlling factors of petroleum accumulation and distribution,the sedimentary facies was studied by the data of drilling,core and seismic attributes,combined with the technologies of stratigraphy and paleogeomorphology restoration,the origin and controlling factors of reservoir were discussed,and the favorable reservoir and potential exploration prospects were defined. The results show that Qingshuihe Formation developed meandering river delta and shore-shallow lacustrine sedimentary facies,and can be characterized by“mud-rich and sand-poor”and limited high quality reservoir distributions. The favorable reservoir distribution was controlled by the“dual”(thrust squeeze-stress relief)systems tract formed by episodic squeeze,sedimentary facies,valley topography and slope break zone. The delta front facies developed at the under-part of the slope break zone is favorable for high-quality reservoir enrichment and potential for petroleum prospecting.

Key words: seismic sedimentology, stratal slicing, beach bar sand bodies, Baiyanghe Formation, Jiuxi Basin

中图分类号:

TE122.2

李啸, 刘海磊, 王学勇, 卞保力, 杨帆, 陈刚强. 坡折带砂体成因及分布规律——以准噶尔盆地车排子地区下白垩统清水河组为例[J]. 岩性油气藏, 2017, 29(1): 35–42.

LI Xiao, LIU Hailei, WANG Xueyong, BIAN Baoli, YANG Fan, CHEN Gangqiang. Origin and distribution of sandbody in slope break zone：a case study of the Lower Cretaceous Qingshuihe Formation in Chepaizi area,Junggar Basin[J]. Lithologic Reservoirs, 2017, 29(1): 35–42.

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坡折带砂体成因及分布规律——以准噶尔盆地车排子地区下白垩统清水河组为例

Origin and distribution of sandbody in slope break zone：a case study of the Lower Cretaceous Qingshuihe Formation in Chepaizi area,Junggar Basin

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