“膨胀力”作用下致密砂岩储层石油运聚特征

doi:10.13278/j.cnki.jjuese.201705102

吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (5): 1341-1351.doi: 10.13278/j.cnki.jjuese.201705102

“膨胀力”作用下致密砂岩储层石油运聚特征

张焕旭¹, 陈世加^1,2, 路俊刚^1,2, 刘超威³, 陈娟⁴, 李勇², 徐坤²

1. 油藏地质及开发工程国家重点实验室, 成都 610500;
2. 西南石油大学地球科学与技术学院, 成都 610500;
3. 中国石油新疆油田分公司勘探开发研究院, 新疆克拉玛依 834000;
4. 中国石油长庆油田分公司勘探开发研究院, 西安 710018

收稿日期:2016-12-12 出版日期:2017-09-26 发布日期:2017-09-26
作者简介:张焕旭(1987),男,在站博士后,主要从事地球化学与油气成藏研究,E-mail:huanxu_zhang@sina.com
基金资助:
国家重点基础研究发展计划（"973"计划）项目（2014CB239005）；国家自然科学基金项目（41502146）；中国石油科技创新基金项目（2015D-5006-0101）

Migration of Oil in Tight Sandstones:Discussion from the Dynamics

Zhang Huanxu¹, Chen Shijia^1,2, Lu Jungang^1,2, Liu Chaowei³, Chen Juan⁴, Li Yong², Xu Kun²

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610500, China;
2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
3. Petroleum Exploration and Development Institute of Xinjiang Oil Field, CNPC, Karamay 834000, Xinjiang, China;
4. Petroleum Exploration and Development Institute of Changqing Oil Field, CNPC, Xi'an 710018, China

Received:2016-12-12 Online:2017-09-26 Published:2017-09-26
Supported by:
Supported by the Major State Basic Research Development Program ("973" Program) of China (2014CB239005), the National Natural Science Foundation of China (41502146) and the Science and Technology Innovation Project of CNPC (2015D-5006-0101)

摘要/Abstract

摘要： 在致密油成藏动力已有认识的基础上，从力的性质和作用效果的角度，对比分析了推动石油在致密储层中运移的"膨胀力"与常规储层情况下浮力之间的区别。论述了在"膨胀力"作用下，石油在理想致密砂岩模型中的运移模式、运移距离及致密油藏扩张规律。基于以上认识并结合实例，建立模型从动力学的角度分析了致密砂岩中隔、夹层及裂缝对石油运移富集的影响。分析认为：由于致密油与常规储层油藏在运移动力及运移模式上的差别，致密砂岩中隔、夹层将会在一定程度上阻碍石油的运移，造成成藏上物性较好的"空白带"；在致密砂岩裂缝型油藏中，与裂缝直接接触物性较好的砂体是最具可能性的石油聚集区带。

关键词: 致密油, 运移动力, 油气成藏, 泥质隔、夹层, 致密砂岩裂缝型油藏, 储层

Abstract: A research was conducted on the differences between tight sandstones and normal sandstones of the oil charging dynamics through the analysis of dynamic characteristics and its effects on oil migration. The tight oil migration distance and accumulation mechanism were also discussed. In addition, we analyzed the effect of mudstone barriers and fractures on oil accumulation in tight sandstones, and concluded that:in tight sandstones, mudstone barriers can block oil migration, and lead to the blank-zones near the barriers; the sand bodies directly contacted with fractures are the most possible targets for oil accumulation.

Key words: tight oil, migration dynamics, hydrocarbon accumulation, mudstone barriers, fractured reservoir of tight sandstones, reservoir

中图分类号:

P613.8

张焕旭, 陈世加, 路俊刚, 刘超威, 陈娟, 李勇, 徐坤. “膨胀力”作用下致密砂岩储层石油运聚特征[J]. 吉林大学学报(地球科学版), 2017, 47(5): 1341-1351.

Zhang Huanxu, Chen Shijia, Lu Jungang, Liu Chaowei, Chen Juan, Li Yong, Xu Kun. Migration of Oil in Tight Sandstones:Discussion from the Dynamics[J]. Journal of Jilin University(Earth Science Edition), 2017, 47(5): 1341-1351.

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“膨胀力”作用下致密砂岩储层石油运聚特征

Migration of Oil in Tight Sandstones:Discussion from the Dynamics

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