辫状河单河道砂体接触关系及主控因素分析——以新疆克拉玛依,山西柳林、大同和陕西延安辫状河露头为例

doi:10.12108/yxyqc.20180204

岩性油气藏 ›› 2018, Vol. 30 ›› Issue (2): 30–38.doi: 10.12108/yxyqc.20180204

辫状河单河道砂体接触关系及主控因素分析——以新疆克拉玛依,山西柳林、大同和陕西延安辫状河露头为例

杨有星¹, 金振奎², 白忠凯¹, 高永进¹, 韩淼¹, 张金虎¹

1. 中国地质调查局油气资源调查中心, 北京 100083;
2. 中国石油大学(北京)地球科学学院, 北京 102249

收稿日期:2017-08-18 修回日期:2017-10-10 出版日期:2018-03-21 发布日期:2018-03-21
第一作者:杨有星(1985-),男,博士,高级工程师,主要从事沉积学和石油地质学方面的科研工作。地址:(100083)北京市海淀区北四环中路267号奥运大厦中国地质调查局油气资源调查中心。Email:yangyouxing22@163.com。
基金资助:
国家重大科技专项“典型沉积环境露头解剖和密井网条件下河道内部构型定量表征技术”（编号：2008ZX05010）和中国地质调查局项目“全国油气资源战略选区调查与评价”（编号：1211302108019）联合资助

Contact relationship and main controlling factors of braided river single channel sand body: a case of braided river from Karamay in Xinjiang, Liulin and Datong in Shanxi,Yan' an in Shaanxi

YANG Youxing¹, JIN Zhenkui², BAI Zhongkai¹, GAO Yongjin¹, HAN Miao¹, ZHANG Jinhu¹

1. Oil & Gas Survey, China Geology Survey, Beijing 100083, China;
2. College of Geosciences, China University of Petroleum, Beijing 102249, China

Received:2017-08-18 Revised:2017-10-10 Online:2018-03-21 Published:2018-03-21

摘要/Abstract

摘要： 为了解决辫状河单河道砂体接触类型及控制因素不清等问题，采用野外辫状河露头剖面观察实测的方法，并结合钻井和地震资料，对辫状河单期河道砂体接触关系进行综合分析。结果表明：辫状河砂体接触关系可以分为3类，包括侵蚀接触型、局部接触型和不接触型。这3种类型砂体在分布形式、泥岩夹层发育程度、储集物性和含油气性差异等方面均具有明显的不同。沉积相带对河道砂体接触关系具有控制作用。近源砾质辫状河沉积地形坡度较陡，水体能量高，河道砂体接触关系以侵蚀接触型为主；远源砾质辫状河道砂体接触关系以局部接触型为主；砂质辫状河道砂体接触关系以不接触型为主。基准面升降变化对河道砂体接触关系具有一定影响，当v_a与v_s的比值较低时，河道砂体接触关系以侵蚀接触型为主；当v_a与v_s的比值中等时，河道砂体以局部接触型为主；当v_a与v_s的比值较高时，河道砂体接触关系以不接触型为主。研究结果对指导油田开发阶段井网部署和提高采收率均具有指导作用。

关键词: 碳酸盐岩油气藏, 岩溶古河道, 奥陶系, 哈拉哈塘地区

Abstract: The contact type and controlling factors of single channel sand body in braided river are not clear. According to the observation and analysis of the braided river outcrop profile in the field, combined with the drilling and seismic data, the contact relationship of the braided river single channel sand body was studied synthetically. The results show that the contact relationship of braided river sand body can be divided into three types, including the complete contact type, local contact type and non-contact type. These three types of sand bodies are obviously different in sand body distribution, mudstone interlayer, reservoir properties and oil-bearing property. The sedimentary facies has obvious control effect on the contact relationship between the river sand bodies. The geologic slope of the near-grained braided river sedimentary facies is also steep, the water body energy is high, and the contact relationship of the river sand body is dominated by the complete contact type. The contact relationship between the sand bodies of the far-grained braided river sedimentary facies is dominated by local contact type. Sandy braided river sand body is mainly non-contact type. When the v_a/v_s ratio is low, the channel sand body is dominated by the complete contact type, when the v_a/v_s ratio is moderate, the channel sand body is dominated by the local contact type;and when the v_a/v_s ratio is high, the channel sand body is dominated by non-contact type. The research result is helpful for guiding the deployment and improvement of oil recovery in oilfield development stage.

Key words: carbonate reservoirs, karstic paleochannel, Ordovician, Halahatang area

中图分类号:

TE121.3

杨有星, 金振奎, 白忠凯, 高永进, 韩淼, 张金虎. 辫状河单河道砂体接触关系及主控因素分析——以新疆克拉玛依,山西柳林、大同和陕西延安辫状河露头为例[J]. 岩性油气藏, 2018, 30(2): 30–38.

YANG Youxing, JIN Zhenkui, BAI Zhongkai, GAO Yongjin, HAN Miao, ZHANG Jinhu. Contact relationship and main controlling factors of braided river single channel sand body: a case of braided river from Karamay in Xinjiang, Liulin and Datong in Shanxi,Yan' an in Shaanxi[J]. Lithologic Reservoirs, 2018, 30(2): 30–38.

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辫状河单河道砂体接触关系及主控因素分析——以新疆克拉玛依,山西柳林、大同和陕西延安辫状河露头为例

Contact relationship and main controlling factors of braided river single channel sand body: a case of braided river from Karamay in Xinjiang, Liulin and Datong in Shanxi,Yan' an in Shaanxi

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