南堡1-5弱挥发性油藏协同建库多轮次注采相态特征研究

doi:10.11885/j.issn.1674-5086.2025.12.23.01

西南石油大学学报(自然科学版) ›› 2026, Vol. 48 ›› Issue (4): 71-80.DOI: 10.11885/j.issn.1674-5086.2025.12.23.01

• 油藏型储气库建库技术专刊 • 上一篇下一篇

南堡1-5弱挥发性油藏协同建库多轮次注采相态特征研究

高广亮¹, 马晓丽¹, 顾潇¹, 蒋明洁¹, 李丹¹, 李春²

1. 中国石油冀东油田分公司, 河北唐山 063004;
2. 中国石油集团科学技术研究院有限公司, 北京海淀 100083

收稿日期:2025-12-23 出版日期:2026-07-20 发布日期:2026-07-20
通讯作者: 高广亮，E-mail:286349297@qq.com
基金资助:
油气重大专项（2025ZD1406800）

A Study on Phase State Characteristics During Multi-cycle Injection in the Collaborative Construction of Underground Gas Storage with Nanpu 1-5 Weak Volatile Reservoir

GAO Guangliang¹, MA Xiaoli¹, GU Xiao¹, JIANG Mingjie¹, LI Dan¹, LI Chun²

1. PetroChina Jidong Oilfield Company, Tangshan, Hebei 063004, China;
2. CNPC Research Institute of Science and Technology Co. Ltd., Haidian, Beijing 100083, China

Received:2025-12-23 Online:2026-07-20 Published:2026-07-20
About author:高广亮，1986年生，男，汉族，河南新乡人，高级工程师，博士，主要从事油气藏开发地质、油气田开发与储气库方案设计等研究工作。E-mail:286349297@qq.com
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
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
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
李丹，1985年生，女，汉族，天津宁河人，高级工程师，主要从事油气田开发研究。E-mail:npqld@petrochina.com.cn
李春，1980年生，男，汉族，四川南充人，高级工程师，硕士，主要从事地下储气库油气藏工程方面的研究。E-mail:lichun30@Petrochina.com.cn

摘要/Abstract

摘要： 相较于传统枯竭气藏建库，弱挥发性油藏协同建库多轮次注采过程中流体组分迁移与相态变化更复杂。为揭示其多轮次注采相平衡演化规律，以南堡1-5弱挥发性油藏为对象，建立多轮次注采相平衡测试实验流程和理论模拟模型，开展采出与剩余流体组分、相态、饱和度及采出程度变化规律研究。结果表明，周期注采5轮次后原油饱和度降低2.4%，利于气体储集空间增加；采出气甲烷含量由93.8%升至95.3%，CO₂及C₂₊组分逐渐降低，注入气抽提作用减弱；剩余油C₇₊摩尔分数提高9.2%，上、下限压力下溶解气油比分别由185、88 m³/m³降至78、35 m³/m³，体积系数由1.57、1.32降至1.24、1.16，逐渐重质化。研究明确了组分迁移、相态演化与空间扩展的相互关系，可为同类油藏协同建库不同轮次政策优化提供依据。

关键词: 弱挥发性油藏, 协同建库, 相态特征, 多轮次注采, 提高采收率

Abstract: Compared with conventional underground gas storage construction in depleted gas reservoirs, fluid compositional migration and phase behavior changes are more complex during multi-cycle injection-production in weakly volatile oil reservoirs. To reveal the phase-equilibrium evolution during cyclic injection-production, this study takes the Nanpu 1-5 weakly volatile oil reservoir as the target and establishes a phase-equilibrium experimental procedure and theoretical simulation model for multi-cycle injection-production. The variations in the composition, phase behavior, saturation, and recovery degree of produced and residual fluids were investigated. The results show that after five injection-production cycles, the oil saturation decreased by 2.4%, which is conducive to increasing gas storage space. The methane content of the produced gas increased from 93.8% to 95.3%, while CO₂ and C₂₊ components gradually decreased, indicating a weakening extraction effect of the injected gas. The C₇₊ mole fraction of the residual oil increased by 9.2%; under the upper and lower pressure limits, the solution gas-oil ratio decreased from 185 and 88 m³/m³ to 78 and 35 m³/m³, respectively, and the oil formation volume factor decreased from 1.57 and 1.32 to 1.24 and 1.16, respectively, indicating gradual heavy-end enrichment of the residual oil. This study clarifies the relationships among compositional migration, phase behavior evolution, and gas storage space expansion, providing a basis for optimizing cyclic injection-production strategies in similar oil-reservoir-based underground gas storage projects.

Key words: weak volatile reservoir, collaborative gas storage construction, phase characteristics, multi-cycles of injection-production, EOR

中图分类号:

TE972

高广亮, 马晓丽, 顾潇, 蒋明洁, 李丹, 李春. 南堡1-5弱挥发性油藏协同建库多轮次注采相态特征研究[J]. 西南石油大学学报(自然科学版), 2026, 48(4): 71-80.

GAO Guangliang, MA Xiaoli, GU Xiao, JIANG Mingjie, LI Dan, LI Chun. A Study on Phase State Characteristics During Multi-cycle Injection in the Collaborative Construction of Underground Gas Storage with Nanpu 1-5 Weak Volatile Reservoir[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2026, 48(4): 71-80.

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南堡1-5弱挥发性油藏协同建库多轮次注采相态特征研究

A Study on Phase State Characteristics During Multi-cycle Injection in the Collaborative Construction of Underground Gas Storage with Nanpu 1-5 Weak Volatile Reservoir

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