边底水气藏改建储气库扩容实验

张广东; 贾继强; 曾大乾; 莫超平; 张广权

doi:10.3969/j.issn.1006-6535.2026.02.011

特种油气藏 >

2026 , Vol. 33 >Issue 2: 100 - 108

DOI: https://doi.org/10.3969/j.issn.1006-6535.2026.02.011

油藏工程

边底水气藏改建储气库扩容实验

张广东 ,
贾继强 ,
曾大乾 ,
莫超平 ,
张广权

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1.西南石油大学,四川成都 610500;
2.中国石化石油勘探开发研究院,北京 102206

张广东(1980—),男,高级实验师,2003年毕业于西南石油学院勘查技术与工程专业,2014年毕业于成都理工大学油气藏开发工程专业,获博士学位,现从事油气藏工程、流体相态、油气藏渗流、页岩油气开发等方面的科研工作。

收稿日期: 2024-04-16

修回日期: 2026-01-29

网络出版日期: 2026-07-30

基金资助

国家自然科学基金青年基金“致密砂岩油藏中油-水-颗粒三相流孔隙尺度建模及渗流机理研究”(51904253)

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Capacity expansion experiment of reconstructing gas storage in gas reservoirs with edge and bottom water

ZHANG Guangdong ,
JIA Jiqiang ,
ZENG Daqian ,
MO Chaoping ,
ZHANG Guangquan

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1. Southwest Petroleum University,Chengdu,Sichuan 610500,China;
2. Sinopec Petroleum Exploration and Production Research Institute,Beijing 102206,China

Received date: 2024-04-16

Revised date: 2026-01-29

Online published: 2026-07-30

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摘要

针对边底水气藏改建储气库排水扩容机理及主要影响因素不明确等问题,以文24气藏为例,构建边底水气藏改建储气库多周期注采排水扩容实验评价方法,开展注气速度、地层倾角及储层物性对边底水气藏多周期注采排水扩容影响实验,揭示边底水气藏注采排水扩容机理。结果显示:当注气速度由0.3 mL/min增至0.9 mL/min,扩容率下降2.550个百分点;当地层倾角由0°增至60°,扩容率提升7.110个百分点;当储层渗透率由25 mD增至107 mD,扩容率提升7.229个百分点;反复注采阶段的前2个周期扩容率增量占整个阶段的85%,与吞吐方式相比,采用注采方式扩容率可提高2.787～3.978个百分点。气驱排水阶段扩容效果最显著,但随着注气速度增加,扩容效率逐渐降低;注采方式更适合边底水型气藏储气库的改建。该成果对于边底水气藏改建储气库扩容机理及参数优化具有重要的指导意义。

关键词： 边底水气藏; 参数优化; 多周期注采; 排水扩容; 储气库

本文引用格式

张广东 , 贾继强 , 曾大乾 , 莫超平 , 张广权 . 边底水气藏改建储气库扩容实验[J]. 特种油气藏, 2026 , 33(2) : 100 -108 . DOI: 10.3969/j.issn.1006-6535.2026.02.011

Abstract

In response to the problem that the drainage and capacity expansion mechanism of converting gas reservoirs with edge and bottom water into gas storage and its main influencing factors are unclear,taking the Wen 24 Gas Reservoir as an example,an experimental evaluation method for multi-cycle injection-production drainage and capacity expansion in gas reservoirs with edge and bottom water converted into gas storage was constructed.Experiments on the effects of gas injection rate,formation dip angle and reservoir physical properties on multi-cycle injection-production drainage and capacity expansion in gas reservoirs with edge and bottom water were carried out,revealing the mechanism of injection-production drainage and capacity expansion in gas reservoirs with edge and bottom water.The results show that the capacity expansion rate decreases by 2.550 percentage points as the gas injection rate increases from 0.3 mL/min to 0.9 mL/min;when the formation dip angle increases from 0°to 60°,the capacity expansion ability increases by 7.110 percentage points;when the reservoir permeability increases from 25 mD to 107 mD,the capacity expansion rate increases by 7.229 percentage points;in the repeated injection-production stage,the increment in capacity expansion rate in the first two cycles accounts for 85% of the entire stage.Compared with the huff-and-puff method,the injection-production method increases the capacity expansion rate by 2.787-3.978 percentage points.The gas-drive drainage stage has the most significant capacity expansion effect,but as the gas injection rate increases,the capacity expansion efficiency gradually decreases;the injection-production method is more suitable for the conversion of gas reservoirs with edge and bottom water into gas storage.These results have important guiding significance for understanding the capacity expansion mechanism and parameter optimization of converting gas reservoirs with edge and bottom water into gas storage.

Key words： gas reservoir with edge and bottom water; parameter optimization; multi-cycle injection-production; drainage and capacity expansion; gas storage

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