川西北部长兴组天然气偏差因子计算方法优选
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摘要
为了解决在四川盆地西北部上二叠统长兴组高含硫天然气偏差因子各计算方法的适应性问题,开展了各种计算方法及校正模型的评价研究,研究中将4种常用计算方法结合校正模型所得预测结果与实验测试结果进行对比分析,优选出适用于该区的天然气偏差因子计算方法及校正模型。研究结果表明:高含硫天然气偏差因子计算时须进行非烃气体组分校正,校正后的经验公式计算值与实验测试值差异较小,结合WA校正的HY方法在四川盆地西北部长兴组高含硫天然气偏差因子预测过程中计算精度高且实用压力范围较宽。进而推荐采用优选WA校正的HY方法用于该区天然气偏差因子的预测。
In order to make clear the adaptability of different methods to calculate Z factor of acid gas in Upper Permian Changxing Formation, northwestern Sichuan Basin, a variety of methods and correction models were evaluated. Through 4 commonly-used calculation methods, prediction results were obtained, and compared with experimental data from correction models. And accordingly, the Z-factor calculation method and the correction models suitable for this block were optimized. Results show, when Z factor of acid gas is calculated, it's necessary to correct non-hydrocarbon gas composition. The difference between calculation result from corrected empirical formula and experimental value is smaller. The WA corrected HY method presents higher calculation precision and larger range of pressure application when it's used to predict this factor of acid gas of Changxing Formation in northwestern Sichuan Basin.In conclusion, it's recommended to adopt this method to predict Z factor of natural gas in this block.
In order to make clear the adaptability of different methods to calculate Z factor of acid gas in Upper Permian Changxing Formation, northwestern Sichuan Basin, a variety of methods and correction models were evaluated. Through 4 commonly-used calculation methods, prediction results were obtained, and compared with experimental data from correction models. And accordingly, the Z-factor calculation method and the correction models suitable for this block were optimized. Results show, when Z factor of acid gas is calculated, it's necessary to correct non-hydrocarbon gas composition. The difference between calculation result from corrected empirical formula and experimental value is smaller. The WA corrected HY method presents higher calculation precision and larger range of pressure application when it's used to predict this factor of acid gas of Changxing Formation in northwestern Sichuan Basin.In conclusion, it's recommended to adopt this method to predict Z factor of natural gas in this block.
引文
[1]汪周华，郭平，李海平，等.酸性天然气压缩因子实用算法对比分析[J].西南石油大学学报：自然科学版，2004,26(1):47-50.Wang Zhouhua,Guo Ping,Li Haiping,et al.Contrast-ing and analyzing the utility arithmetic for calculating the Z-factor of sour gas[J].Journal of China University of Petroleum:Edition of Natural Science,2004,26(1):47-50.
[2]韩洪升.天然气压缩因子计算方法的评价[J].油气储运，1994,13(1):13-18.Han Hongsheng.Evaluation on method of calculating the Z-factor of natural gas[J].Oil&Gas Storage and Transportation,1994,13(1):13-18.
[3]李相方，刚涛，庄湘琦，等.高压天然气偏差系数的高精度解析模型[J].石油大学学报：自然科学版，2001,25(6):45-46.Li Xiangfang,Gang Tao,Zhuang Xiangqi,et al.A analytic model with high precision for calculating the Z-factor of high-pressure gas[J].2001,25(6):45-46.
[4]张国东，李敏，柏冬岭.高压超高压天然气偏差系数实用计算模型LXF高压高精度天然气偏差系数解析模型的修正[J].天然气工业，2005,25(8):79-80.Zhang Guodong,Li Min,Bai Dongling.Practical calculating model of gas deviation factor with high super-high pressure[J].Natural Gas Industry,2005,25(8):79-80.
[5]刘建仪，李士伦，郭平，等.天然气偏差系数的测定[J].天然气工业，2002,22(2):63-65.Liu Jianyi,Li Shilun,Guo Ping,et al.Measurement of gas deviation factor[J].Natural Gas Industry,2002,22(2):63-65.
[6]四川石油管理局.天然气工程手册[M].北京：石油工业出版社，1982.Sichuan Petroleum Administration.Natural Gas Engineering Handbook[M].Being:Petroleum Industry Press,1982.
[7]徐朝阳，熊钰，谢恩，等.酸性天然气偏差因子计算方法优选[J].重庆科技学院学报：自然科学版，2012,14(1):3-26.Xu Zhaoyang,Xiong Yu,Xie En,et al.The optimization for calculation method of sour natural gas deviation factor.Journal of Chongqing University of Science and Technology:Edition of Natural Sciences,2012,14(1):23-26.
[8]黄德明，付德奎，胡杰，等.高酸气田天然气偏差因子计算方法[J].天然气技术与经济，2012,6(6):30-33.Huang Deming,Fu DeKui,Hu Jie,et al.A calculating method for gas deviation factor of high sour gas reservoir[J].Natural Gas Technology and Economy,2012,6(6):30-33.
[9]汪周华，郭平，周克明，等.罗家寨气田酸性气体偏差因子预测方法对比[J].天然气工业，2004,24(7):86-88.Wang Zhouhua,Guo Ping,Zhou Keming,et al.Method of Z-factor prediction for sour gas in Luojiazhai Gas Field[J].Natural Gas Industry,2004,24(7):86-88.
[10]郭肖，杜志敏，杨学锋，等.酸性气藏气体偏差系数计算模型[J].天然气工业，2008,28(4):89-92.Guo Xiao,Du Zhimin,Yang Xuefeng,et al.A calculating model for gas deviation coefficient of sour gas reservoir[J].Natural Gas Industry,2008,28(4):89-92.
[11]李相方.天然气偏差系数模型综合评价与选用[J].石油钻采工艺，2001,23(2):42-46,84,85.Li Xiangfang.Comprehensive appraisal and selection for gas compressibility factor calculating model[J].Oil Drilling&Production Technology,2001,23(2):42-46,84,85.
[12]里群，谷明星，陈卫东，等.富硫化氢酸性天然气相态行为的实验测定和模型预测[J].高校化学工程学报，1994,8(3):209-214.Li Qun,Gu Mingxing,Chen Weidong,et al.Experimental measurement and model prediction for phase behavior of H2S-rich sour gas[J].Journal of Chemical Engineering of Chinese Universities.1994,8(3):209-214.
[13]卞小强，杜志敏，汤勇.高含H2S天然气偏差系数计算新模型[J].新疆石油地质，2010,31(5):524-526.Bian Xiaoqiang,Du Zhimin,Tang Yong.New model for calculation of H2S-rich natural gas deviation factor[J].Xinjiang Petroleum Geology,2010,31(5):524-526.
[14]张庆洲，樊建明，郭平，等.非烃对气藏流体偏差系数的影响[J].天然气工业，2009,29(10):74-76.Zhang Qingzhou,Fan Jianming,Guo Ping,et al.Impact of non-hydrocarbons on the calculation of compressibility factor for inorganic gas reservoir fluids[J].Natural Gas Industry,2009,29(10):74-76．
[15]Wichert,E.and Aziz,K,et al.Calculation of Z’s for Sour Gases[J].Hydrocarbon Processing,1972,51(5):119-121.
[16]郭绪强，阎炜，陈爽，等.特高压力下天然气压缩因子模型应用评价[J].中国石油大学学报：自然科学版，2000,24(6):36-38.Guo Xuqiang,Yan Wei,Chen Shuang,et al.Comparison of methods for calculating compressibility factor of natural gas at elevated high pressure[J].Journal of the University of Petroleum:Edition of Natural Science,2000,24(6):36-38.
[2]韩洪升.天然气压缩因子计算方法的评价[J].油气储运，1994,13(1):13-18.Han Hongsheng.Evaluation on method of calculating the Z-factor of natural gas[J].Oil&Gas Storage and Transportation,1994,13(1):13-18.
[3]李相方，刚涛，庄湘琦，等.高压天然气偏差系数的高精度解析模型[J].石油大学学报：自然科学版，2001,25(6):45-46.Li Xiangfang,Gang Tao,Zhuang Xiangqi,et al.A analytic model with high precision for calculating the Z-factor of high-pressure gas[J].2001,25(6):45-46.
[4]张国东，李敏，柏冬岭.高压超高压天然气偏差系数实用计算模型LXF高压高精度天然气偏差系数解析模型的修正[J].天然气工业，2005,25(8):79-80.Zhang Guodong,Li Min,Bai Dongling.Practical calculating model of gas deviation factor with high super-high pressure[J].Natural Gas Industry,2005,25(8):79-80.
[5]刘建仪，李士伦，郭平，等.天然气偏差系数的测定[J].天然气工业，2002,22(2):63-65.Liu Jianyi,Li Shilun,Guo Ping,et al.Measurement of gas deviation factor[J].Natural Gas Industry,2002,22(2):63-65.
[6]四川石油管理局.天然气工程手册[M].北京：石油工业出版社，1982.Sichuan Petroleum Administration.Natural Gas Engineering Handbook[M].Being:Petroleum Industry Press,1982.
[7]徐朝阳，熊钰，谢恩，等.酸性天然气偏差因子计算方法优选[J].重庆科技学院学报：自然科学版，2012,14(1):3-26.Xu Zhaoyang,Xiong Yu,Xie En,et al.The optimization for calculation method of sour natural gas deviation factor.Journal of Chongqing University of Science and Technology:Edition of Natural Sciences,2012,14(1):23-26.
[8]黄德明，付德奎，胡杰，等.高酸气田天然气偏差因子计算方法[J].天然气技术与经济，2012,6(6):30-33.Huang Deming,Fu DeKui,Hu Jie,et al.A calculating method for gas deviation factor of high sour gas reservoir[J].Natural Gas Technology and Economy,2012,6(6):30-33.
[9]汪周华，郭平，周克明，等.罗家寨气田酸性气体偏差因子预测方法对比[J].天然气工业，2004,24(7):86-88.Wang Zhouhua,Guo Ping,Zhou Keming,et al.Method of Z-factor prediction for sour gas in Luojiazhai Gas Field[J].Natural Gas Industry,2004,24(7):86-88.
[10]郭肖，杜志敏，杨学锋，等.酸性气藏气体偏差系数计算模型[J].天然气工业，2008,28(4):89-92.Guo Xiao,Du Zhimin,Yang Xuefeng,et al.A calculating model for gas deviation coefficient of sour gas reservoir[J].Natural Gas Industry,2008,28(4):89-92.
[11]李相方.天然气偏差系数模型综合评价与选用[J].石油钻采工艺，2001,23(2):42-46,84,85.Li Xiangfang.Comprehensive appraisal and selection for gas compressibility factor calculating model[J].Oil Drilling&Production Technology,2001,23(2):42-46,84,85.
[12]里群，谷明星，陈卫东，等.富硫化氢酸性天然气相态行为的实验测定和模型预测[J].高校化学工程学报，1994,8(3):209-214.Li Qun,Gu Mingxing,Chen Weidong,et al.Experimental measurement and model prediction for phase behavior of H2S-rich sour gas[J].Journal of Chemical Engineering of Chinese Universities.1994,8(3):209-214.
[13]卞小强，杜志敏，汤勇.高含H2S天然气偏差系数计算新模型[J].新疆石油地质，2010,31(5):524-526.Bian Xiaoqiang,Du Zhimin,Tang Yong.New model for calculation of H2S-rich natural gas deviation factor[J].Xinjiang Petroleum Geology,2010,31(5):524-526.
[14]张庆洲，樊建明，郭平，等.非烃对气藏流体偏差系数的影响[J].天然气工业，2009,29(10):74-76.Zhang Qingzhou,Fan Jianming,Guo Ping,et al.Impact of non-hydrocarbons on the calculation of compressibility factor for inorganic gas reservoir fluids[J].Natural Gas Industry,2009,29(10):74-76．
[15]Wichert,E.and Aziz,K,et al.Calculation of Z’s for Sour Gases[J].Hydrocarbon Processing,1972,51(5):119-121.
[16]郭绪强，阎炜，陈爽，等.特高压力下天然气压缩因子模型应用评价[J].中国石油大学学报：自然科学版，2000,24(6):36-38.Guo Xuqiang,Yan Wei,Chen Shuang,et al.Comparison of methods for calculating compressibility factor of natural gas at elevated high pressure[J].Journal of the University of Petroleum:Edition of Natural Science,2000,24(6):36-38.
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