基于模糊数学的凝析气藏开发效果评价方法
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摘要
目前凝析气藏普遍采用衰竭式开发,但适用于凝析气藏衰竭开发效果评价方法较少,针对这一问题,开展了凝析气藏开发效果评价方法研究,选取影响凝析气藏开发效果的关键参数,建立了反映开发效果的生产指标体系,采用了模糊数学理论方法分析了关键参数对开发效果的影响权重,绘制了评价开发效果的理论图版,以实际数据与理论图版曲线的吻合度为评分标准,构建了适用于凝析气藏衰竭开发效果评价的新方法。实例分析表明,该方法能从产能、地层能量、水驱程度、采出程度、井流物组分5个方面全面评价凝析气藏衰竭开发效果,评价结果全面、准确可靠,能够为现场生产提供指导。
At present, gas condensate reservoirs commonly adopt the depletion development mode. However, only a few evaluation methods are suitable for the depletion assessment of gas condensate reservoirs. Targeting this problem, a study on the evaluation method for the depletion effect of gas condensate reservoirs was performed. Key parameters affecting the depletion effect of gas condensate reservoirs were selected to establish a production index system reflecting the development degree. Fuzzy mathematics was used to analyze to which extent key parameters affect the development degree, and a theoretical chart for the evaluation of the development effect was developed. The goodness of fit between the curves from actual data and the theoretical chart was used as the scoring criterion to establish a new method suitable for assessing the development of gas condensate reservoirs through depletion. Analysis using real examples shows that this method can comprehensively evaluate the development of gas condensate reservoirs through depletion from five aspects: production capacity, formation energy, degree of water flooding, recovery, and composition of well. The results are comprehensive, accurate, and reliable, capable of providing guidance for production on site.
At present, gas condensate reservoirs commonly adopt the depletion development mode. However, only a few evaluation methods are suitable for the depletion assessment of gas condensate reservoirs. Targeting this problem, a study on the evaluation method for the depletion effect of gas condensate reservoirs was performed. Key parameters affecting the depletion effect of gas condensate reservoirs were selected to establish a production index system reflecting the development degree. Fuzzy mathematics was used to analyze to which extent key parameters affect the development degree, and a theoretical chart for the evaluation of the development effect was developed. The goodness of fit between the curves from actual data and the theoretical chart was used as the scoring criterion to establish a new method suitable for assessing the development of gas condensate reservoirs through depletion. Analysis using real examples shows that this method can comprehensively evaluate the development of gas condensate reservoirs through depletion from five aspects: production capacity, formation energy, degree of water flooding, recovery, and composition of well. The results are comprehensive, accurate, and reliable, capable of providing guidance for production on site.
引文
[1]李士伦,郭平,杜建芬,等.提高凝析气藏采收率和气井产量新思路[J].西南石油大学学报,2007, 29(2):1-6. doi:10.3863/j.issn.1674-5086.2007.02.001LI Shilun, GUO Ping, DU Jianfen, et al. New way to improve gaswell production and condensate gas field's recovery factor[J]. Journal of Southwest Petroleum University, 2007, 29(2):1-6. doi:10.3863/j.issn.1674-5086.-2007.02.001
[2]张旭东,唐磊,李宝刚,等.渤海油田凝析气藏相态特征研究[J].长江大学学报(自科版),2016, 13(32):79-81. doi:10.3969/j.issn.1673-1409(s).2016.32.016ZHANG Xudong,TANG Lei,LI Baogang,et al. Experimental study on phase behavior of gas condensate reservoir in Bohai Oilfield[J]. Journal of Yangtze University(Natural Science Edition),2016, 13(32):79-81. doi:10.-3969/j.issn.1673-1409(s).2016.32.016
[3]韩剑发,宋玉斌,熊昶,等.塔中海相碳酸盐岩凝析气田试采动态特征与开发技术对策[J].天然气地球科学,2014, 25(12):2047-2057. doi:10.11764/j.issn.-1672-1926.2014.12.2047HAN Jianfa, SONG Yubin, XIONG Chang, et al. Production test dynamic and developing technique strategies for the condensate gas of marine carbonate in Tazhong Area,Tarim Basin[J]. Natural Gas Geoscience, 2014, 25(12):2047-2057. doi:10.11764/j.issn.1672-1926.2014.12.2047
[4] SADOONI M, ZONNOURI A. The effect of nitrogen injection on production improvement in an Iranian rich gas condensate reservoir[J]. Liquid Fuels Technology, 2015,33(4):422-429. doi:10.1080/10916466.2014.992535
[5]孙岩,朱维耀,李保柱,等.凝析气藏循环注气开发注人干气超覆数值模拟[J].中国石油大学学报(自然科学版),2018,42(2):129-135. doi:10.3969/j.issn.1673-5005.2018.02.015SUN Yan, ZHU Weiyao, LI Baozhu, et al. Numerical sim-ulation on dry gas overlap in cycling gas injection development of condensate gas reservoirs[J]. Journal of China University of Petroleum,2018, 42(2):129-135. doi:10.-3969/j.issn.1673-5005.2018.02.015
[6] ADEL H, TIAB D, ZHU T. Effect of gas recycling on the enhancement of condensate recovery, case study:Hassi R'Mel South Field,Algeria[C]. SPE 104040, 2006. doi:10.2118/104040-MS
[7] NASIRI GHIRI M,NASRIANI H R,SINAEI M,et al. Gas injection for enhancement of condensate recovery in a gas condensate reservoir[J]. Energy Sources, Part A:Recovery, Utilization, and Environmental Effects, 2015, 37(8):799-806. doi:10.1080/15567036.2011.596901
[8]李士伦,孙雷,郭平,等.再论我国发展注气提高采收率技术[J].天然气工业,2006, 26(12):30-34. doi:10.3321/j.issn:1000-0976.2006.12.006LI Shilun,SUN Lei,GUO Ping,et al. Re-discussion of EOR with gas injection in China[J]. Natural Gas Industry, 2006, 26(12):30-34. doi:10.3321/j.issn:1000-0976.-2006.12.006
[9]马永祥.定容凝析气藏开发指标确定方法[J].新疆石油地质,2000, 21(3):220-223. doi:10.3969/j.issn.1001-3873.2000.03.012MA Yongxiang. Determination approach of development indexes in a condensate gas reservoir at constand volume[J]. Xinjiang Petroleum Geology,2000,21(3):220-223. doi:10.3969/j.issn.1001-3873.2000.03.012
[10]吴宜禄,李晓平,李海涛.凝析气藏自然衰竭式开采的采收率预测方法[J].西南石油学院学报,2004, 26(4):38-40, 43. doi:10.3863/j.issn.1674-5086.2004.04.011WU Yilu, LI Xiaoping, LI Haitao. Prediction method of recovery efficiency of condensate gas reservoir blowdown natural depletion[J]. Journal of Southwest Petroleum Institute, 2004, 26(4):38-40, 43. doi:10.3863/j.issn.1674-5086.2004.04.011
[11]刘建仪,韩杰鹏,张广东,等.单井生产动态拟合法求取强水驱凝析气藏动态储量[J].中国海上油气,2016,28(2):83-87. doi:10.11935/j.issn.1673-1506.2016.02.-010LIU Jianyi,HAN Jiepeng,ZHANG Guangdong,et al.Single well production performance fitting method for dynamic reserves of strong water-drive gas condensate reservoir[J]. China Offshore Oil and Gas, 2016, 28(2):83-87.doi:10.11935/j.issn.1673-1506.2016.02.010
[12]王怒涛,陈仲良,祝明谦,等.基于质量守恒原理的凝析气藏单井动态储量计算[J].天然气地球科学,2018,29(3):424-428. doi:10.11764/j.issn.1672-1926.-2018.01.014WANG Nutao, CHEN Zhongliang, ZHU Mingqian, et al.Dynamic reserve calculation of single well in condensate gas reservoirs based on a principle of mass conservation[J]. Natural Gas Geoscience, 2018, 29(3):424-428.doi:10.11764/j.issn.1672-1926.2018.01.014
[13]汤勇,杜志敏,孙雷,等.考虑地层水蒸发的异常高温油气藏相态和渗流研究现状[J].钻采工艺,2007, 30(5):82-85. doi:10.3969/j.issn.1006-768X.2007.05.026TANG Yong, DU Zhimin, SUN Lei, et al. Research on fluid phase behavior and flowing mechanics in abnormal high temperature oil-gas reservoirs considering formation water evaporation[J]. Drilling&Production Technology,2007, 30(5):82-85. doi:10.3969/j.issn.1006-768X.2007.-05.026
[14]严文德,孙雷,李士伦,等.凝析气藏气-液-液体系相态特征模拟研究[J].西南石油大学学报,2007, 29(2):49-53. doi:10.3863/j.issn.1674-5086.2007.02.013YAN Wende, SUN Lei, LI Shilun, et al. The phase state characteristic simulation for gas-liquid-liquid system of gas condensate reservoir[J]. Journal of Southwest Petroleum University, 2007, 29(2):49-53. doi:10.3863/j.issn.-1674-5086.2007.02.013
[15]李中锋,何顺利.模糊数学在长庆气田碳酸盐岩储层评价中的应用[J].天然气工业,2005,25(3):55-57. doi:10.3321/j.issn:1000-0976.2005.03.016LI Zhongfeng, HE Shunli. Application of fuzzy mathematics to evaluating the carbonate reservoirs in Changqing ASG field[J]. Natural Gas Industry, 2005, 25(3):55-57.doi:10.3321/j.issn:1000-0976.2005.03.016
[16]张杰,崔宏俊.模糊数学综合评价方法在储层预测中的应用-以鄂尔多斯盆地延长气田东部地区上古生界为例[J].陕西科技大学学报,2011,29(6):112-116. doi:10.3969/j.issn. 1000-5811.2011.06.027ZHANG Jie, CUI Hongjun. Application of the fuzzy comprehensive evolution method in reservoir prediction:Taking the upper paleozoic reservoir in Yanchang Gasfield of Ordos Basin as an example[J]. Journal of Shaanxi University of Science&Technology, 2011, 29(6):112-116. doi:10.3969/j.issn. 1000-5 811.2011.06.027
[17]陈明强,葛家理.油藏类型识别的一个模糊数学模型[J].西南石油学院学报,1990, 12(3):91-100.CHEN Mingqiang, GE Jiali. A fuzzy mathematical model for recognizing oif/gas reservoir types[J]. Journal of Southwestern Petroleum Institute, 1990, 12(3):91-100.
[18]宋化明,陈叔阳,张云,等.塔里木盆地大涝坝凝析气田循环注气开发设计[J].石油钻采工艺,2011,32(增):120-123. doi:10.3969/j.issn.1000-7393.2010.z1.033SONG Huaming, CHEN Shuyang, ZHANG Yun, et al.Study on cyclic gas injection technology for development of Dalaoba condensate field in Tarim Basin[J]. Oil Drilling&Production Technology, 2011, 32(S):120-123.doi:10.3969/j.issn.1000-7393.2010.z1.033
[19]崔立宏,付超,刘韬,等.大张坨凝析气藏循环注气开发方案研究[J].石油勘探与开发,1999,26(5):43-45.CUI Lihong, FU Chao, LIU Tao, et al. Cyclic gas injection development plan for Dazhangtuo condensate gas reservoir[J]. Petroleum Exploration and Development, 1999,26(5):43-45.
[20]牟琼,吴庆军,鲁成国.一种考虑多个指标的模糊数排序方法[J].广西师范学院学报(自然科学版),2004,21(2):17-21. doi:10.3969/j.issn.1002-8743.2004.02.-005MOU Qiong,WU Qingjun,LU Chengguo. A multiple indices approach for ranking fuzzy numbers[J]. Journal of Guangxi Teachers Education University(Natural Science Edition), 2004,21(2):17-21. doi:10.3969/j.issn.1002-8743.2004.02.005
[21]张位全,邱东.关于模糊数性质的一个注解[J].兰州理工大学学报,2013, 39(3):168-169. doi:10.3969/j.-issn.1673-5196.2013.03.039ZHANG Weiquan, QIU Dong. A note to property of fuzzy number[J]. Journal of Lanzhou University of Technology, 2013, 39(3):168-169. doi:10.3969/j.issn.1673-5196.-2013.03.039
[22]祖家奎,赵淳生,戴冠中.基于聚类算法的模糊逻辑结构与系统性能分析[J].南京航空航天大学学报,2004,36(1):16-21. doi:10.3969/j.issn.1005-2615.-2004.01.004ZU Jiakui, ZHAO Chunsheng, DAI Guanzhong. Fuzzy logical structure and its performances based on clustering algorithms[J]. Journal of Nanjing University of Aeronautics&Astronautics, 2004, 36(1):16-21. doi:10.3969/j.-issn.1005-2615.2004.01.004
[23]刘叙华.模糊逻辑与模糊推理[M].成都:四川人民出版社,1989.
[2]张旭东,唐磊,李宝刚,等.渤海油田凝析气藏相态特征研究[J].长江大学学报(自科版),2016, 13(32):79-81. doi:10.3969/j.issn.1673-1409(s).2016.32.016ZHANG Xudong,TANG Lei,LI Baogang,et al. Experimental study on phase behavior of gas condensate reservoir in Bohai Oilfield[J]. Journal of Yangtze University(Natural Science Edition),2016, 13(32):79-81. doi:10.-3969/j.issn.1673-1409(s).2016.32.016
[3]韩剑发,宋玉斌,熊昶,等.塔中海相碳酸盐岩凝析气田试采动态特征与开发技术对策[J].天然气地球科学,2014, 25(12):2047-2057. doi:10.11764/j.issn.-1672-1926.2014.12.2047HAN Jianfa, SONG Yubin, XIONG Chang, et al. Production test dynamic and developing technique strategies for the condensate gas of marine carbonate in Tazhong Area,Tarim Basin[J]. Natural Gas Geoscience, 2014, 25(12):2047-2057. doi:10.11764/j.issn.1672-1926.2014.12.2047
[4] SADOONI M, ZONNOURI A. The effect of nitrogen injection on production improvement in an Iranian rich gas condensate reservoir[J]. Liquid Fuels Technology, 2015,33(4):422-429. doi:10.1080/10916466.2014.992535
[5]孙岩,朱维耀,李保柱,等.凝析气藏循环注气开发注人干气超覆数值模拟[J].中国石油大学学报(自然科学版),2018,42(2):129-135. doi:10.3969/j.issn.1673-5005.2018.02.015SUN Yan, ZHU Weiyao, LI Baozhu, et al. Numerical sim-ulation on dry gas overlap in cycling gas injection development of condensate gas reservoirs[J]. Journal of China University of Petroleum,2018, 42(2):129-135. doi:10.-3969/j.issn.1673-5005.2018.02.015
[6] ADEL H, TIAB D, ZHU T. Effect of gas recycling on the enhancement of condensate recovery, case study:Hassi R'Mel South Field,Algeria[C]. SPE 104040, 2006. doi:10.2118/104040-MS
[7] NASIRI GHIRI M,NASRIANI H R,SINAEI M,et al. Gas injection for enhancement of condensate recovery in a gas condensate reservoir[J]. Energy Sources, Part A:Recovery, Utilization, and Environmental Effects, 2015, 37(8):799-806. doi:10.1080/15567036.2011.596901
[8]李士伦,孙雷,郭平,等.再论我国发展注气提高采收率技术[J].天然气工业,2006, 26(12):30-34. doi:10.3321/j.issn:1000-0976.2006.12.006LI Shilun,SUN Lei,GUO Ping,et al. Re-discussion of EOR with gas injection in China[J]. Natural Gas Industry, 2006, 26(12):30-34. doi:10.3321/j.issn:1000-0976.-2006.12.006
[9]马永祥.定容凝析气藏开发指标确定方法[J].新疆石油地质,2000, 21(3):220-223. doi:10.3969/j.issn.1001-3873.2000.03.012MA Yongxiang. Determination approach of development indexes in a condensate gas reservoir at constand volume[J]. Xinjiang Petroleum Geology,2000,21(3):220-223. doi:10.3969/j.issn.1001-3873.2000.03.012
[10]吴宜禄,李晓平,李海涛.凝析气藏自然衰竭式开采的采收率预测方法[J].西南石油学院学报,2004, 26(4):38-40, 43. doi:10.3863/j.issn.1674-5086.2004.04.011WU Yilu, LI Xiaoping, LI Haitao. Prediction method of recovery efficiency of condensate gas reservoir blowdown natural depletion[J]. Journal of Southwest Petroleum Institute, 2004, 26(4):38-40, 43. doi:10.3863/j.issn.1674-5086.2004.04.011
[11]刘建仪,韩杰鹏,张广东,等.单井生产动态拟合法求取强水驱凝析气藏动态储量[J].中国海上油气,2016,28(2):83-87. doi:10.11935/j.issn.1673-1506.2016.02.-010LIU Jianyi,HAN Jiepeng,ZHANG Guangdong,et al.Single well production performance fitting method for dynamic reserves of strong water-drive gas condensate reservoir[J]. China Offshore Oil and Gas, 2016, 28(2):83-87.doi:10.11935/j.issn.1673-1506.2016.02.010
[12]王怒涛,陈仲良,祝明谦,等.基于质量守恒原理的凝析气藏单井动态储量计算[J].天然气地球科学,2018,29(3):424-428. doi:10.11764/j.issn.1672-1926.-2018.01.014WANG Nutao, CHEN Zhongliang, ZHU Mingqian, et al.Dynamic reserve calculation of single well in condensate gas reservoirs based on a principle of mass conservation[J]. Natural Gas Geoscience, 2018, 29(3):424-428.doi:10.11764/j.issn.1672-1926.2018.01.014
[13]汤勇,杜志敏,孙雷,等.考虑地层水蒸发的异常高温油气藏相态和渗流研究现状[J].钻采工艺,2007, 30(5):82-85. doi:10.3969/j.issn.1006-768X.2007.05.026TANG Yong, DU Zhimin, SUN Lei, et al. Research on fluid phase behavior and flowing mechanics in abnormal high temperature oil-gas reservoirs considering formation water evaporation[J]. Drilling&Production Technology,2007, 30(5):82-85. doi:10.3969/j.issn.1006-768X.2007.-05.026
[14]严文德,孙雷,李士伦,等.凝析气藏气-液-液体系相态特征模拟研究[J].西南石油大学学报,2007, 29(2):49-53. doi:10.3863/j.issn.1674-5086.2007.02.013YAN Wende, SUN Lei, LI Shilun, et al. The phase state characteristic simulation for gas-liquid-liquid system of gas condensate reservoir[J]. Journal of Southwest Petroleum University, 2007, 29(2):49-53. doi:10.3863/j.issn.-1674-5086.2007.02.013
[15]李中锋,何顺利.模糊数学在长庆气田碳酸盐岩储层评价中的应用[J].天然气工业,2005,25(3):55-57. doi:10.3321/j.issn:1000-0976.2005.03.016LI Zhongfeng, HE Shunli. Application of fuzzy mathematics to evaluating the carbonate reservoirs in Changqing ASG field[J]. Natural Gas Industry, 2005, 25(3):55-57.doi:10.3321/j.issn:1000-0976.2005.03.016
[16]张杰,崔宏俊.模糊数学综合评价方法在储层预测中的应用-以鄂尔多斯盆地延长气田东部地区上古生界为例[J].陕西科技大学学报,2011,29(6):112-116. doi:10.3969/j.issn. 1000-5811.2011.06.027ZHANG Jie, CUI Hongjun. Application of the fuzzy comprehensive evolution method in reservoir prediction:Taking the upper paleozoic reservoir in Yanchang Gasfield of Ordos Basin as an example[J]. Journal of Shaanxi University of Science&Technology, 2011, 29(6):112-116. doi:10.3969/j.issn. 1000-5 811.2011.06.027
[17]陈明强,葛家理.油藏类型识别的一个模糊数学模型[J].西南石油学院学报,1990, 12(3):91-100.CHEN Mingqiang, GE Jiali. A fuzzy mathematical model for recognizing oif/gas reservoir types[J]. Journal of Southwestern Petroleum Institute, 1990, 12(3):91-100.
[18]宋化明,陈叔阳,张云,等.塔里木盆地大涝坝凝析气田循环注气开发设计[J].石油钻采工艺,2011,32(增):120-123. doi:10.3969/j.issn.1000-7393.2010.z1.033SONG Huaming, CHEN Shuyang, ZHANG Yun, et al.Study on cyclic gas injection technology for development of Dalaoba condensate field in Tarim Basin[J]. Oil Drilling&Production Technology, 2011, 32(S):120-123.doi:10.3969/j.issn.1000-7393.2010.z1.033
[19]崔立宏,付超,刘韬,等.大张坨凝析气藏循环注气开发方案研究[J].石油勘探与开发,1999,26(5):43-45.CUI Lihong, FU Chao, LIU Tao, et al. Cyclic gas injection development plan for Dazhangtuo condensate gas reservoir[J]. Petroleum Exploration and Development, 1999,26(5):43-45.
[20]牟琼,吴庆军,鲁成国.一种考虑多个指标的模糊数排序方法[J].广西师范学院学报(自然科学版),2004,21(2):17-21. doi:10.3969/j.issn.1002-8743.2004.02.-005MOU Qiong,WU Qingjun,LU Chengguo. A multiple indices approach for ranking fuzzy numbers[J]. Journal of Guangxi Teachers Education University(Natural Science Edition), 2004,21(2):17-21. doi:10.3969/j.issn.1002-8743.2004.02.005
[21]张位全,邱东.关于模糊数性质的一个注解[J].兰州理工大学学报,2013, 39(3):168-169. doi:10.3969/j.-issn.1673-5196.2013.03.039ZHANG Weiquan, QIU Dong. A note to property of fuzzy number[J]. Journal of Lanzhou University of Technology, 2013, 39(3):168-169. doi:10.3969/j.issn.1673-5196.-2013.03.039
[22]祖家奎,赵淳生,戴冠中.基于聚类算法的模糊逻辑结构与系统性能分析[J].南京航空航天大学学报,2004,36(1):16-21. doi:10.3969/j.issn.1005-2615.-2004.01.004ZU Jiakui, ZHAO Chunsheng, DAI Guanzhong. Fuzzy logical structure and its performances based on clustering algorithms[J]. Journal of Nanjing University of Aeronautics&Astronautics, 2004, 36(1):16-21. doi:10.3969/j.-issn.1005-2615.2004.01.004
[23]刘叙华.模糊逻辑与模糊推理[M].成都:四川人民出版社,1989.