| 塔北隆起深层碎屑岩优质储层形成主控因素 |
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| 引用本文： | 杨海军,刘永福,苏洲,韩剑发.塔北隆起深层碎屑岩优质储层形成主控因素[J].地质论评,2020,66(1):169-178. |
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| 作者姓名： | 杨海军 刘永福 苏洲 韩剑发 |
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| 作者单位： | 中国石油塔里木油田分公司勘探开发研究院，新疆库尔勒，841000,中国石油塔里木油田分公司勘探开发研究院，新疆库尔勒，841000,1）中国石油塔里木油田分公司勘探开发研究院，新疆库尔勒，841000；
2）长江大学地球物理与石油资源学院，武汉，430100,1）中国石油塔里木油田分公司勘探开发研究院，新疆库尔勒，841000；
2）长江大学地球物理与石油资源学院，武汉，430100 |
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| 基金项目： | 注：本文为国家重大专项课题“大型地层油气藏形成主控因素与有利区带评价”（编号：2017ZX05001 001）和中国石油股份公司重大专项“缝洞型碳酸盐岩油气藏效益开发关键技术研究与应用”（编号：2018E 1806）的成果 |
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| 摘 要： | 近几年,在塔里木盆地塔北隆起深层碎屑岩储层中发现了一定规模的油气资源,研究深层优质储层形成主控因素及分布,一直是本区深层油气勘探的关键问题。本文应用岩芯观察、粒度分析、普通薄片、铸体薄片、阴极发光薄片等技术方法,通过对塔北隆起英买力地区深层白垩系巴西改组优质储层特征的研究,结果表明巴西改组具有沉积水动力强、杂基含量少、砂岩压实不充分、胶结物主要为方解石胶结物及溶蚀作用发育等特点。在沉积条件和成岩条件对深层储层物性发育控制作用分析的基础上,认为形成现今深层优质储层的原因主要有三个方面:①好的原始沉积条件为深层优质储层发育提供基础;②压实作用不充分保存了较高的粒间体积百分比(IGV),为深层高孔隙储层发育提供条件,而压实不充分的原因是早期发育的胶结物抵御了一部分上覆垂向有效应力和深埋时间短;③大量方解石胶结物的溶蚀对深层优质储层形成具有重要作用。
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| 关 键 词： | 塔北隆起 白垩系巴西改组 粒间体积百分比（IGV） 深层优质储层 主控因素 |
| 收稿时间： | 2019/7/2 0:00:00 |
| 修稿时间： | 2019/12/11 0:00:00 |
The main controlling factors for the formation of high quality clastic reservoirsin deeply buried strata of Tabei Uplift |
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| YANG Haijun,LIU Yongfu,SU Zhou and HAN Jianfa.The main controlling factors for the formation of high quality clastic reservoirsin deeply buried strata of Tabei Uplift[J].Geological Review,2020,66(1):169-178. |
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| Authors: | YANG Haijun LIU Yongfu SU Zhou and HAN Jianfa |
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| Institution: | Reseach Institution of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang, 841000,Reseach Institution of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang, 841000,1) Reseach Institution of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang, 841000;
2) College of Geophysics and Oil Resources,Yangtze University, Wuhan, Hubei, 430100 and Reseach Institution of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang, 841000 |
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| Abstract: | Objectives: In recent years, a lot of oil and gas resources have been discovered in the deep clastic reservoir of Tabei Uplift in Tarim Basin. The study on the main controlling factors and distribution of the formation of deep quality reservoirs has been a key issue in the exploration of deep oil and gas.Mothods:In this paper, The main techniques used include core observation, particle size analysis, common thin section, cast thin section, cathode luminescence thin section, and the characteristics of deep Baxigai formation in Yingmaili area of Tabei Uplift were studied.Rusults:The results show that the Baxigai formation has the characteristics of strong sedimentary hydrodynamic force, less heterogenous base content, insufficient sandstone compaction, and the cementation mainly calcite cementation and dissolution development.Conclusions: On basis of analyzing the control action of sedimentary and diagenetic conditions for property of deeply buried clastic reservoirs, it is believed that there are three main reasons for the formation of high quality deeply buried reservoirs. First, good sedimentary conditions provide a foundation for high quality deep reservoir. Secondary, because the compaction is not insufficient, let the deep reservoirs have high intergranular volume (IGV), and it provides conditions for deep reservoirs to form high porosity. The reasons of insufficient compaction are that the cement formed in the early stage can resist the vertical effective stress and short buried time. Third, the dissolution of a large amount of calcite cement plays an important role in the formation of high quality deep reservoirs. |
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