油藏改建储气库次生气顶形成条件及影响因素研究

doi:10.11885/j.issn.1674-5086.2025.12.15.01

西南石油大学学报(自然科学版) ›› 2026, Vol. 48 ›› Issue (4): 11-22.DOI: 10.11885/j.issn.1674-5086.2025.12.15.01

• 油藏型储气库建库技术专刊 • 上一篇下一篇

油藏改建储气库次生气顶形成条件及影响因素研究

马晓丽, 李聪, 蒋明洁, 顾潇, 辛春彦, 田中敬

中国石油冀东油田分公司, 河北唐山 063004

收稿日期:2025-12-15 出版日期:2026-07-17 发布日期:2026-07-17
通讯作者: 蒋明洁，E-mail:jmj2007@petrochina.com.cn
基金资助:
油气重大专项（2025ZD1406800）

A Study on the Formation Conditions and Influencing Factors of Secondary Gas Cap in Oil Reservoirs Conversion into Gas Storage

MA Xiaoli, LI Cong, JIANG Mingjie, GU Xiao, XIN Chunyan, TIAN Zhongjing

PetroChina Jidong Oilfield Company, Tangshan, Hebei 063004, China

Received:2025-12-15 Online:2026-07-17 Published:2026-07-17
About author:马晓丽，1982年生，女，汉族，河北平山人，高级工程师，硕士，主要从事油气田开发研究。E-mail:npmxl@petrochina.com.cn
李聪，1983年生，男，汉族，四川南充人，高级工程师，博士，主要从事油气田勘探开发综合地质研究方面的工作。E-mail:ls_licong@petrochina.com.cn
蒋明洁，1991年生，女，汉族，江苏江阴人，工程师，硕士，主要从事油气田开发研究。E-mail:jmj2007@petrochina.com.cn
顾潇，1987年生，女，汉族，甘肃白银人，工程师，硕士，主要从事油气田开发研究。E-mail:kfjs_gxiao@petrochina.com.cn
辛春彦，1989年生，女，汉族，黑龙江哈尔滨人，高级工程师，硕士，主要从事储气库地质与油气藏工程相关方案编制与科研攻关方面的工作。E-mail:xinchunyan08@163.com
田中敬，1982年生，女，汉族，山东菏泽人，工程师，硕士，主要从事油气田开发研究。E-mail:tzj2012@petrochina.com.cn

摘要/Abstract

摘要： 随着中国能源结构转型与天然气消费需求增长，油气协同开发成为重要发展方向。老油藏改建储气库可盘活油田资产、提升区域调峰储气能力，具有重要意义。油藏建库过程中，次生气顶的形成与运移是储气库协同提采、排液扩容及后期形成高速注采能力的关键，是影响储气库高效达容的核心难题。探究了次生气顶形成条件与运移规律，为气驱扩容方案提供理论支撑。综合物理模拟、数值模拟及油藏工程方法，分析含气饱和度、地层压力变化，确定次生气顶形成临界条件，揭示注采井网、地层倾角、储层非均质性等因素对气顶发育运移的影响机理。结果表明，井网形式与地层倾角是次生气顶稳定的主控因素，储层强非均质性会抑制气顶均匀扩展。研究成果明确了气顶演化关键控制参数，为优化注采制度提供依据，对油气协同开发与储气库高效建设具有理论及工程指导意义。

关键词: 砂岩油藏, 储气库, 次生气顶, 数值模拟, 注采参数优化

Abstract: With the transformation of China's energy structure and the growth of natural gas consumption demand, the coordinated development of oil and gas has become an important development direction. It is of great significance to reconstruct gas storage in old reservoirs to revitalize oilfield assets and improve regional peak shaving and gas storage capacity. In the process of reservoir construction, the formation and migration of secondary gas cap is the key to the synergistic extraction, drainage and expansion of gas storage and the formation of high-speed injection and production capacity in the later stage, which is the core problem affecting the efficient capacity of gas storage. This paper explores the formation conditions and migration rules of secondary gas cap, and provides theoretical support for gas drive expansion scheme. Based on physical simulation, numerical simulation and reservoir engineering methods, the changes of gas saturation and formation pressure are analyzed to determine the critical conditions for the formation of secondary gas cap, and to reveal the influence mechanism of well pattern, formation dip angle, reservoir heterogeneity and other factors on the development and migration of gas cap. The results show that the well pattern and formation dip angle are the main controlling factors for the stability of secondary gas cap, and the strong heterogeneity of reservoir will inhibit the uniform expansion of gas cap. The study clarifies the key control parameters of gas cap evolution, provides a basis for optimizing the injection-production system, and has theoretical and engineering guiding significance for the coordinated development of oil and gas and the efficient construction of gas storage.

Key words: sandstone reservoir, gas storage, secondary gas cap, numerical simulation, optimization of injection and production parameters

中图分类号:

TE972
P624

马晓丽, 李聪, 蒋明洁, 顾潇, 辛春彦, 田中敬. 油藏改建储气库次生气顶形成条件及影响因素研究[J]. 西南石油大学学报(自然科学版), 2026, 48(4): 11-22.

MA Xiaoli, LI Cong, JIANG Mingjie, GU Xiao, XIN Chunyan, TIAN Zhongjing. A Study on the Formation Conditions and Influencing Factors of Secondary Gas Cap in Oil Reservoirs Conversion into Gas Storage[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2026, 48(4): 11-22.

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油藏改建储气库次生气顶形成条件及影响因素研究

A Study on the Formation Conditions and Influencing Factors of Secondary Gas Cap in Oil Reservoirs Conversion into Gas Storage

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