酒泉盆地营尔凹陷下白垩统下沟组沉积特征及勘探方向

doi:10.12108/yxyqc.20200506

岩性油气藏 ›› 2020, Vol. 32 ›› Issue (5): 54–62.doi: 10.12108/yxyqc.20200506

酒泉盆地营尔凹陷下白垩统下沟组沉积特征及勘探方向

吴青鹏¹, 吕锡敏¹, 陈娟¹, 周在华², 袁成¹

1. 中国石油勘探开发研究院西北分院, 兰州 730020;
2. 中国石油玉门油田分公司勘探开发研究院, 甘肃酒泉 735019

收稿日期:2019-12-30 修回日期:2020-04-07 出版日期:2020-10-01 发布日期:2020-08-08
第一作者:吴青鹏(1978-),男,硕士,高级工程师,主要从事沉积储层及石油地质综合研究等方面的工作。地址:(730020)甘肃省兰州市城关区雁儿湾路535号。Email:wu_qp@petrochina.com.cn。
基金资助:
国家油气重大科技专项“岩性地层油气藏区带、圈闭有效性评价预测技术”（编号：2017ZX05001-003）资助

Sedimentary characteristics and exploration potentials of Lower Cretaceous Xiagou Formation in Ying'er Sag,Jiuquan Basin

WU Qingpeng¹, LYU Ximin¹, CHEN Juan¹, ZHOU Zaihua², YUAN Cheng¹

1. PetroChina Research Institute of Petroleum Exploration and Development-Northwest, Lanzhou 730020, China;
2. Research Institute of Exploration and Development, PetroChina Yumen Oilfield Company, Jiuquan 735019, Gansu, China

Received:2019-12-30 Revised:2020-04-07 Online:2020-10-01 Published:2020-08-08

摘要/Abstract

摘要： 为了进一步拓展酒泉盆地营尔凹陷油气勘探新领域，在区域构造沉积背景分析、岩心观察、粒度分析、钻井测井分析、地震属性分析和储层预测的基础上，开展了营尔凹陷下沟组沉积特征研究。结果表明：营尔凹陷下沟组上段发育浊积砂体新的储集体类型；浊积体受同沉积断裂活动控制，属于远岸水下扇相沉积；浊积体依附于同生断层发育，单个浊积体规模较小但成群分布，整体规模可观。浊积体的发现进一步拓展了营尔凹陷岩性油气藏勘探的新领域，为营尔凹陷及类似断陷型盆地构造低部位和洼陷腹部油气勘探提供了理论基础。

关键词: 浊积体, 沉积特征, 分布规律, 储层预测, 营尔凹陷

Abstract: In order to explore a new field for oil & gas exploration in Ying'er Sag,the sedimentary characteristics of Xiagou Formation in Ying'er Sag were studied based on the analysis of sedimentary settings,core observation,grain size,well logging,seismic attributes and reservoir prediction. The results show that:A new type of turbidite sand body is developed in the upper Xiagou Formation of Ying'er Sag. The turbidite which is controlled and triggered by the synsedimentary fault can be identified as a deposition of the off-shore subaqueous fan facies. The turbidites in this area are synsedimentary fault-related,small in individual size but large in groups. The discovery of turbidites can further expand the area of lithologic reservoir exploration in Ying'er Sag. It lays a solid foundation for hydrocarbon exploration in the low position of structure and sags which are similar to Ying'er Sag.

Key words: turbidite, sedimentary characteristics, distribution regularity, reservoir prediction, Ying'er Sag

中图分类号:

TE121.3

吴青鹏, 吕锡敏, 陈娟, 周在华, 袁成. 酒泉盆地营尔凹陷下白垩统下沟组沉积特征及勘探方向[J]. 岩性油气藏, 2020, 32(5): 54–62.

WU Qingpeng, LYU Ximin, CHEN Juan, ZHOU Zaihua, YUAN Cheng. Sedimentary characteristics and exploration potentials of Lower Cretaceous Xiagou Formation in Ying'er Sag,Jiuquan Basin[J]. Lithologic Reservoirs, 2020, 32(5): 54–62.

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酒泉盆地营尔凹陷下白垩统下沟组沉积特征及勘探方向

Sedimentary characteristics and exploration potentials of Lower Cretaceous Xiagou Formation in Ying'er Sag,Jiuquan Basin

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