准噶尔盆地车排子凸起新近系沙湾组油藏特征及成藏主控因素

发布时间：2018-04-14 18:31

本文选题：车排子凸起 + 油藏特征　；参考：《地质通报》2017年04期

【摘要】：对准噶尔盆地车排子凸起新近系沙湾组已发现油藏从层位、规模、油性、物性、物源、类型等方面进行了梳理和总结。沙湾组共发育岩性、断层-岩性、断鼻三类圈闭,储层特征与油藏规模存在差异,油性分布较复杂。在明确沙湾组复杂油藏特征的基础上,结合典型油藏解剖,认为长期继承性的古隆起、高效的毯状砂体输导层、断层纵横向的封闭性、储集层物性的差异、多源多期成藏过程及不同的保存条件是沙湾组油气藏类型多样、油性复杂的主要控制因素。根据上述认识,预测毯状砂体侧向尖灭带为有利的油气聚集区,从实钻效果看,该区带内油气显示丰富,展现出较好的勘探前景。
[Abstract]:The reservoir has been found in the Shawan formation of the Neogene in Chepaizi uplift Junggar Basin in terms of horizon scale oil property physical property provenance and type.There are three types of traps in Shawan formation: lithology fault lithology and fault nose. The reservoir characteristics and reservoir size are different and the distribution of oil properties is complex.On the basis of defining the characteristics of complex reservoirs in Shawan formation, combined with the anatomy of typical reservoirs, it is considered that the long-term inherited paleouplift, the highly efficient carpetlike sand body transport layer, the sealing of faults in longitudinal and horizontal direction, and the difference of reservoir physical properties,The main controlling factors of the oil and gas reservoirs in Shawan formation are various types and complex oil properties in the process of multi-source and multi-period reservoir formation and different preservation conditions.According to the above understanding, it is predicted that the tapered belt of carpet sand body is a favorable oil and gas accumulation area. From the effect of drilling, the oil and gas in the zone is abundant and shows a good prospect for exploration.
【作者单位】：中国石油勘探开发研究院;中国石化胜利油田分公司勘探开发研究院西部分院;
【基金】：国家科技重大专项《准噶尔盆地碎屑岩层系大中型油气田形成规律与勘探方向》(编号:2011ZX05002-002) 中国石油天然气股份有限公司重大科技专项《深层大油气田形成与分析》(编号:2014E-32-01)
【分类号】：P618.13

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