Investigation of Dominant Factors Influencing High-speed Non-Darcy Effect in Gas Wells

doi:10.11885/j.issn.1674-5086.2022.06.10.01

Abstract

Abstract: Practice in gas reservoir development has shown that the high-speed non-Darcy effect has a significant impact on gas well productivity. However, the degree to which high-speed non-Darcy effects impact different gas reservoirs varies. For gas reservoirs with lower pressures, the high-speed non-Darcy effect becomes more pronounced with increasing gas well production rate. For gas reservoirs with higher pressures, the same level of gas well production rate may not cause strong high-speed non-Darcy effects due to the strong gas compression, higher density, viscosity, and lower natural gas seepage speed under higher formation pressure. Sensitivity analysis of the primary factors influencing non-Darcy effects is conducted based on the gas well productivity equation and Reynolds number equation, including reservoir properties and gas properties. The Darcy/non-Darcy flow boundary is established based on the critical Reynolds number, and a Darcy flow chart is created for natural gas. The chart can be used to determine the strength of non-Darcy effects and provide guidance for setting production constraints for gas wells.

Key words: high-speed non-Darcy effect, Reynolds number, gas well productivity, non-Darcy flow chart, proration production

CLC Number:

TE377

WANG Yang, WANG Bin, LUO Jianxin, ZHAO Chuankai, SHI Lei. Investigation of Dominant Factors Influencing High-speed Non-Darcy Effect in Gas Wells[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(2): 87-94.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2022.06.10.01

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2024/V46/I2/87

References

[1] ZHAO Mingyue, WANG Xinhai, LEI Ting, et al. Study on the weilbore pressure responding features of the high speed non-Darcy percolation[J]. Well Testing, 2001, 10(5): 1-3. doi: 10.3969/j.issn.1004-4388.2001.05.001 赵明跃, 王新海, 雷霆, 等. 高速非达西渗流井底压力响应特征研究[J]. 油气井测试, 2001, 10(5): 1-3. doi: 10.3969/j.issn.1004-4388.2001.05.001
[2] CHEN Jianhua, WANG Xinhai, LIU Yang, et al. Characteristics of bottom pressure considering high-speed non-Darcy flow near wellbore[J]. Fault-Block Oil & Gas Field, 2012, 19(2): 221-224. 陈建华, 王新海, 刘洋, 等. 考虑井筒附近高速非达西渗流的井底压力特征[J]. 断块油气田, 2012, 19(2): 221-224.
[3] ZHANG Liehui, ZHU Shuiqiao, WANG Kun, et al. A mathematic model for non-Darcy flow at high flow rate[J]. Xinjiang Petroleum Geology, 2004, 25(2): 165-167. doi: 10.3969/j.issn.10013873.2004.02.015 张烈辉, 朱水桥, 王坤, 等. 高速气体非达西渗流数学模型[J]. 新疆石油地质, 2004, 25(2): 165-167. doi: 10.3969/j.issn.10013873.2004.02.015
[4] LUO Yinfu, HUANG Bingguang, YI Ga, et al. Well test analysis of gas well producing at constant pressure accounting for high velocity non-Darcy flow[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2008, 30(2): 91-93. doi: 10.3863/j.issn.1000-2634.2008.02.023 罗银富, 黄炳光, 依呷, 等. 高速非达西流动定压生产气井试井分析方法[J]. 西南石油大学学报(自然科学版), 2008, 30(2): 91-93. doi: 10.3863/j.issn.1000-2634.2008.02.023
[5] LI Linkai, JIANG Ruizhong, XU Jianchun, et al. Well test analysis based on a new model of high-velocity non-Darcy fluid flow[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2013, 35(1): 99-105. doi: 10.3863/j.issn.1674-5086.2013.01.014 李林凯, 姜瑞忠, 徐建春, 等. 基于高速非达西渗流新模型的试井分析[J]. 西南石油大学学报(自然科学版), 2013, 35(1): 99-105. doi: 10.3863/j.issn.1674-5086.2013.01.014
[6] GEERTSMA J. Estimating the coefficient of inertial resistance in fluid flow through porous media[C]. SPE 4706-PA, 1974. doi: 10.2118/4706-PA
[7] NOMAN R, SHRIMANKER N, ARCHER J S. Estimation of the coefficient of inertial resistance in high rate gas wells[C]. SPE 14207-MS, 1985. doi: 10.2118/14207-MS
[8] LIU X, CIVAN F, EVANS R D. Correlation of the non-Darcy flow coefficient[C]. PETSOC 95-10-05, 1995. doi: 10.2118/95-10-05
[9] CHEN Yuanqian, GUO Erpeng, ZHANG Feng. Application and comparison of method for determining high velocity turbulence flow coefficient of gas well[J]. Fault-Block Oil & Gas Field, 2008, 15(5): 53-55, 90. 陈元千, 郭二鹏, 张枫. 确定气井高速湍流系数方法的应用与对比[J]. 断块油气田, 2008, 15(5): 53-55, 90.
[10] DOU Hongen. Further understanding on turbulence coefficient of high-speed non-Darcy flow of gas reservoir[J]. Fault-Block Oil & Gas Field, 2013, 20(4): 466-469. doi: 10.6056/dkyqt201304014 窦宏恩. 正确认识气藏高速非达西流湍流系数[J]. 断块油气田, 2013, 20(4): 466-469. doi: 10.6056/dkyqt201304014
[11] CUI Chuanzhi, LIU Huiqing, GENG Zhengling, et al. Analysis of unsteady state flow in vertically fractured multi-lateral wells[J]. Special Oil & Gas Reservoirs, 2011, 18(6): 80-82, 102. doi: 10.3969/j.issn.1006-6535.2011.06.020 崔传智, 刘慧卿, 耿正玲, 等. 天然气高速非达西渗流动态产能计算[J]. 特种油气藏, 2011, 18(6): 80-82, 102. doi: 10.3969/j.issn.1006-6535.2011.06.020
[12] ZHANG Liehui, ZHANG Su, XIONG Yanli, et al. Productivity analysis of horizontal gas wells for low permeability gas reservoirs[J]. Natural Gas Industry, 2010, 30(1): 49-51. doi: 10.3787/j.issn.1000-0976.2010.01.013 张烈辉, 张苏, 熊燕莉, 等. 低渗透气藏水平井产能分析[J]. 天然气工业, 2010, 30(1): 49-51. doi: 10.3787/j.issn.1000-0976.2010.01.013
[13] LIU Shijie, CAI Zhenhua, DING Wangui, et al. Deliverability equation with "one-point method" for Linxing Block[J]. Well Testing, 2020, 29(5): 74-78. doi: 10.19680/j.cnki.1004-4388.2020.05.013 刘世界, 蔡振华, 丁万贵, 等. 临兴区块"一点法"产能方程[J]. 油气井测试, 2020, 29(5): 74-78. doi: 10.19680/j.cnki.1004-4388.2020.05.013
[14] WU Ying, MA Huanying, ZHANG Ziqian, et al. A new correction method of gas well binomial productivity equation curve based on pressure[J]. Well Testing, 2022, 31 (6): 1-5. doi: 10.19680/j.cnki.1004-4388.2022.06.001 吴英, 马焕英, 张子前, 等. 基于压力的气井二项式产能方程曲线校正新方法[J]. 油气井测试, 2022, 31(6): 1-5. doi: 10.19680/j.cnki.1004-4388.2022.06.001
[15] LI Yuansheng, LI Xiangfang, TENG Sainan, et al. Effect of non-Darcy flow moving boundary of high velocity nearby wellbore on productivity prediction[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2015, 37(1): 128-134. doi: 10.11885/j.issn.16745086.2012.11.19.02 李元生, 李相方, 藤赛男, 等. 近井地带高速非达西动边界对产能预测的影响[J]. 西南石油大学学报(自然科学版), 2015, 37(1): 128-134. doi: 10.11885/j.issn.16745086.2012.11.19.02
[16] XU Shaosong, CHEN Qinlei. Numerical simulation of unsteady flow in an infinite composite reservoir with turbulence near the wellbore[J]. Journal of the University of Petroleum, China, 1994, 18(5): 53-59. 许少松, 陈钦雷. 井筒附近地层高速非达西渗流的数值分析[J]. 石油大学学报(自然科学版), 1994, 18(5): 53-59.
[17] DOU Hongen. Non-Darcy flow cannot occur in low permeability reservoir: Discussion on "High rate non-Darcy flow is easer to occur in low permeability reservoir?"[J]. Lithologic Reservoir, 2012, 24(5): 19-21, 31. doi: 10.3969/j.issn.1673-8926.2012.05.003 窦宏恩. 低渗透油层不能产生高速非达西流——对《低渗透储层容易产生高速非Darcy流吗?》一文的讨论[J]. 岩性油气藏, 2012, 24(5): 19-21, 31. doi: 10.3969/j.issn.1673-8926.2012.05.003
[18] CHEN Yuanqian, WANG Xin, CHANG Baohua. A new method for evaluating the productivity of abnormally high-pressured and high-rate gas wells[J]. China Offshore Oil and Gas, 2022, 34(6): 93-100. doi: 10.11935/j.issn.16731506.2022.06.009 陈元千, 王鑫, 常宝华. 评价异常高压高产气井产能的新方法[J]. 中国海上油气, 2022, 34(6): 93-100. doi: 10.11935/j.issn.16731506.2022.06.009
[19] ZHONG Fuxun. Gas reservoir engineering[M]. Beijing: Petroleum Industry Press, 2001. 钟孚勋. 气藏工程[M]. 北京: 石油工业出版社, 2001.
[20] YANG Shenglai, WEI Junzhi. Reservoir physics[M]. Beijing: Petroleum Industry Press, 2003. 杨胜来, 魏俊之. 油层物理学[M]. 北京: 石油工业出版社, 2003.
[21] KAJIAHOV. Physical basis of oil layer[M]. ZHANG Chaochen, trans. Beijing: Petroleum Industry Press, 1958. 卡佳霍夫. 油层物理基础[M]. 张朝琛, 译. 北京: 石油工业出版社, 1958.