临兴气田致密砂岩储层可动流体分布特征及主控因素

doi:10.3969/j.issn.1006-6535.2024.02.018

特种油气藏 ›› 2024, Vol. 31 ›› Issue (2): 152-158.DOI: 10.3969/j.issn.1006-6535.2024.02.018

临兴气田致密砂岩储层可动流体分布特征及主控因素

杜佳¹, 郭晶晶², 刘彦成¹, 张迎春¹

1.中联煤层气有限责任公司,北京 100015;
2.西南石油大学油气藏地质及开发工程全国重点实验室,四川成都 610500

收稿日期:2023-07-17 修回日期:2023-12-13 出版日期:2024-04-25 发布日期:2024-07-26
通讯作者: 郭晶晶(1986—),女,副教授,2008年毕业于西南石油大学石油工程专业,2013年毕业于该校油气田开发工程专业,获博士学位,现主要从事非常规油气藏渗流机理及数值模拟方面的教学与科研工作。
作者简介:杜佳(1983—),女,工程师,2004年毕业于石油大学(北京)资源勘察工程专业,2007年毕业于中国地质大学(北京)矿产普查与勘探专业,获硕士学位,现主要从事非常规天然气勘探开发研究工作。
基金资助:
国家自然科学基金面上项目“超临界二氧化碳强化开采页岩气竞争吸附机理及数值模拟研究”(52174036);四川省科技计划“深层海相页岩气藏多尺度多机制下的非线性渗流理论研究”(2021YJ0345)

Distribution Characteristics and Main Controlling Factors of Movable Fluid in Tight Sandstone Reservoir of Linxing Gasfield

Du Jia¹, Guo Jingjing², Liu Yancheng¹, Zhang Yingchun¹

1. China United Coalbed Methane Co., Ltd., Beijing 100015, China;
2. National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2023-07-17 Revised:2023-12-13 Online:2024-04-25 Published:2024-07-26

摘要/Abstract

摘要： 针对鄂尔多斯盆地临兴地区储层微观孔隙结构复杂、可动流体分布特征及控制因素不明等问题,综合利用低场核磁共振、场发射扫描电镜、X射线衍射分析、核磁共振成像以及CT扫描等手段,对临兴气田上石盒子组和太原组可动流体饱和度特征进行定量刻画,分析了孔隙度、渗透率、岩石矿物组成、微观孔隙连通性与可动流体饱和度之间的关系。结果表明:临兴地区石盒子组储层平均可动流体饱和度为58.05%,太原组储层平均流体饱和度为48.60%,石盒子组储层平均流体饱和度明显高于太原组;渗透率及孔隙连通百分比是影响致密砂岩储层可动流体饱和度的重要因素。研究结果可为临兴致密砂岩储层渗流规律认识及开发方案编制提供有力支撑。

关键词: 致密砂岩气藏, 核磁共振, 可动流体, 主控因素, 临兴气田

Abstract: To address the problem of complex microporous structure and unknown distribution characteristics and control factors of movable fluid in the reservoirs of Linxing Area in the Ordos Basin, by comprehensively utilizing low-field nuclear magnetic resonance (NMR), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) analysis, nuclear magnetic resonance (NMR) imaging, and CT scanning, we quantitatively portrayed the saturation characteristics of the moveable fluids of the Upper Shihezi Formation and the Taiyuan Formation of the Linxing Gasfield, and analyzed the relations among the porosity, permeability, mineralogical composition of the rocks, microscopic porosity connectivity and the saturation of the moveable fluids. The results show that the average movable fluid saturation of the reservoirs of the Shihezi Formation in Linxing Area is 58.05%, and the average fluid saturation of the reservoirs of the Taiyuan Formation is 48.60%, and the average fluid saturation of the reservoirs of the Shihezi Formation is significantly higher than that of the Taiyuan Formation; the permeability and the percentage of porosity connectivity are the important factors influencing the movable fluid saturation of the dense sandstone reservoirs. The results of the study can provide a strong support for the understanding of permeability rules and the preparation of the development plan for dense sandstone reservoirs in Linxing Area.

Key words: tight sandstone gas reservoirs, nuclear magnetic resonance, movable fluids, main controlling factors, Linxing Gasfield

中图分类号:

TE349

杜佳, 郭晶晶, 刘彦成, 张迎春. 临兴气田致密砂岩储层可动流体分布特征及主控因素[J]. 特种油气藏, 2024, 31(2): 152-158.

Du Jia, Guo Jingjing, Liu Yancheng, Zhang Yingchun. Distribution Characteristics and Main Controlling Factors of Movable Fluid in Tight Sandstone Reservoir of Linxing Gasfield[J]. Special Oil & Gas Reservoirs, 2024, 31(2): 152-158.

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临兴气田致密砂岩储层可动流体分布特征及主控因素

Distribution Characteristics and Main Controlling Factors of Movable Fluid in Tight Sandstone Reservoir of Linxing Gasfield

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