裂缝-孔隙型砂岩气藏可动储量综合界限

doi:10.11885/j.issn.1674-5086.2015.06.23.03

西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (2): 93-98.DOI: 10.11885/j.issn.1674-5086.2015.06.23.03

裂缝-孔隙型砂岩气藏可动储量综合界限

方建龙^1,2, 彭先³, 刘林清³, 叶礼友⁴

1. 西南石油大学石油与天然气工程学院, 四川成都 610500;
2. 中国石油勘探与生产分公司, 北京东城 100007;
3. 中国石油西南油气田公司勘探开发研究院, 四川成都 610051;
4. 中国石油勘探开发研究院廊坊分院, 河北廊坊 065007

收稿日期:2015-06-23 出版日期:2017-04-01 发布日期:2017-04-01
作者简介:方建龙,1977年生,男,汉族,新疆米泉人,博士研究生,主要从事天然气开发管理工作。E-mail:fangjianlong@petrochina.com.cn;彭先,1969年生,男,汉族,陕西西乡人,高级工程师,主要从事气藏动态分析、气藏综合地质评价研究工作。E-mail:pengxian@petrochina.com.cn;刘林清,1981年生,男,汉族,湖北蕲春人,工程师,硕士,主要从事油气田开发、油气藏数值模拟研究。E-mail:liulinqing@petrochina.com.cn;叶礼友,1982年生,男,汉族,江西九江人,工程师,博士,主要从事复杂气藏开发机理研究。E-mail:yeliyou69@petrochina.com.cn
基金资助:
国家科技重大专项（2011ZX05013002）

Comprehensive Limits of the Movable Reserves in Fractured-Porous Sandstone

FANG Jianlong^1,2, PENG Xian³, LIU Linqing³, YE Liyou⁴

1. School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. Exploration and Development Branch Company, CNPC, Dongcheng, Beijing 100007, China;
3. Research Institute of Petroleum Exploration and Development, Southwest Oil & Gas Field Company, PetroChina, Chengdu, Sichuan 610051, China;
4. Langfang Branch of Petroleum Exploration and Development Research Institute, PetroChina, Langfang, Hebei 065007, China

Received:2015-06-23 Online:2017-04-01 Published:2017-04-01
Contact: 方建龙,E-mail:fangjianlong@petrochina.com.cn

摘要/Abstract

摘要：

明确可动储量界限是确定气藏可动储量和难动储量的基础。综合应用裂缝性气藏等效介质模拟方法和单井经济极限评价方法确定了川西地区平落坝须二段裂缝孔隙型砂岩气藏不同裂缝发育程度储层的可动储量综合界限。结果表明，基质物性对单井累计产气量影响最为显著，而裂缝角度影响很小；基质渗透率越低，裂缝密度对单井累计产气量的影响越大；天然裂缝越发育，可动储量的综合界限越低；对于裂缝不发育储层，可动储量的综合界限为：覆压渗透率下限0.008 mD，含水饱和度上限42%，孔隙度下限6.4%。

关键词: 裂缝孔隙型砂岩气藏, 可动储量, 等效介质, 裂缝密度, 综合界限

Abstract:

The identification of limits in the movable reserves of a reservoir is the basis for the determination of its movable and immovable reserves. Through the simulation of fractured gas reservoirs using equivalent medium models, and evaluations based on the economic limits of single wells, we have identified the comprehensive limits of movable reserves in reservoirs with varying levels of fracture development in the XU-2 fractured porous sandstone gas reservoir of Pingluoba in Western Sichuan. The results of this study have shown that the properties of the matrix have the most significant impact on the cumulative gas production of a single well, whereas the fracture angle only has a very small effect. The influence of fracture density on the cumulative gas production of a single well was found to increase with decreases in matrix permeability. The comprehensive limits of the movable reserves also appear to decrease as natural fractures develop further. In reservoirs without developed fractures, the comprehensive limits of its movable reserves are as follows:its lower limit of permeability under overburden pressure is 0.008 mD, while its upper limit of water saturation is 42%, and its lower limit of porosity is 6.4%.

Key words: fractured porous sandstone gas reservoirs, movable reserves, equivalent medium, fracture density, comprehensive limits

中图分类号:

TE371

方建龙, 彭先, 刘林清, 叶礼友. 裂缝-孔隙型砂岩气藏可动储量综合界限[J]. 西南石油大学学报(自然科学版), 2017, 39(2): 93-98.

FANG Jianlong, PENG Xian, LIU Linqing, YE Liyou. Comprehensive Limits of the Movable Reserves in Fractured-Porous Sandstone[J]. 西南石油大学学报(自然科学版), 2017, 39(2): 93-98.

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裂缝-孔隙型砂岩气藏可动储量综合界限

Comprehensive Limits of the Movable Reserves in Fractured-Porous Sandstone

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