基于模糊结构元多分支水平井瓦斯抽采多因素群评价
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摘要
为了对多分支水平井瓦斯抽采方案进行综合准确评价,解决以往评价标准单一和各评价因素不相容的问题,建立基于模糊结构元的多分支水平井瓦斯抽采多因素群评价模型。摆脱非此即彼的精确性,应用模糊数学的方法,构建多分支水平井的模糊产能计算公式。选取熵权法与判断矩阵法组合赋权,将专家多年累计的经验与客观数据联系起来,采用模糊评价模型对沙曲矿多分支水平井瓦斯抽采方案进行综合评价。结果表明:多分支水平井的模糊产能计算公式使得计算结果与实际检测结果更加吻合。基于模糊结构元的多因素群评价模型能有效准确排列出不同多分支水平井瓦斯抽采方案的优劣次序,为工程方案的选择提供有力指导。
In order to comprehensively and accurately evaluate the gas drainage scheme of multi-branch horizontal wells and solve the problem of the single evaluation criteria and the incompatibility of each evaluation factor,the model of multi-factor group evaluation for the gas drainage of multi-branch horizontal wells based on fuzzy structural element is established. The fuzzy production capacity formula for multi-branch horizontal wells is constructed by fuzzy mathematics method.Weight is determined by entropy weight method and judgment matrix method,the accumulated experience of experts for many years is linked to objective data,thus,the fuzzy evaluation model is used to evaluate the gas drainage scheme of multi branch horizontal wells in the Shaqu Mine.The result shows that the fuzzy production capacity formula of the multi-branch horizontal well makes the calculation result more consistent with the actual test result.The multi-factor group evaluation model based on fuzzy structure element can effectively and accurately arrange the order of gas drainage scheme for different multi-branch horizontal wells,and provide strong guidance for the selection of engineering scheme.
In order to comprehensively and accurately evaluate the gas drainage scheme of multi-branch horizontal wells and solve the problem of the single evaluation criteria and the incompatibility of each evaluation factor,the model of multi-factor group evaluation for the gas drainage of multi-branch horizontal wells based on fuzzy structural element is established. The fuzzy production capacity formula for multi-branch horizontal wells is constructed by fuzzy mathematics method.Weight is determined by entropy weight method and judgment matrix method,the accumulated experience of experts for many years is linked to objective data,thus,the fuzzy evaluation model is used to evaluate the gas drainage scheme of multi branch horizontal wells in the Shaqu Mine.The result shows that the fuzzy production capacity formula of the multi-branch horizontal well makes the calculation result more consistent with the actual test result.The multi-factor group evaluation model based on fuzzy structure element can effectively and accurately arrange the order of gas drainage scheme for different multi-branch horizontal wells,and provide strong guidance for the selection of engineering scheme.
引文
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[12]刘海涛,郭嗣琮.基于模糊结构元表述的模糊数排序[J].模糊系统与数学,2010,24(5):61-67.LIU Haitao,GUO Sicong. Fuzzy number sequence based on expression of fuzzy structured element[J].Fuzzy Systems and Mathematics,2010,24(5):61-67.
[13]王胜本,赵黎明,元继学.模糊决策中常用的规范化方法[J].天津大学学报,2008,41(4):294-297.WANG Shengben,ZHAO Liming,YUAN Jixue. Normalization methods in fuzzy decision making[J].Journal of Tianjin University,2008,41(4):294-297.
[2]肖峻峰,陈洋洋,李平,等.深井高瓦斯工作面“一巷多用”瓦斯治理新模式[J].煤炭学报,2015,40(10):2414-2421.XIAO Junfeng,CHEN Yangyang,LI Ping,et al.New comprehensive gas control mode based on one roadway with multi-purposes of high methane working face in deep coal mine[J].Journal of China Coal Society,2015,40(10):2414-2421.
[3]王兆丰,田富超,赵彬,等.羽状千米长钻孔抽采效果考察试验[J].煤炭学报,2010,35(1):76-79.WANG Zhaofeng,TIAN Fuchao,ZHAO Bin,et al. The testing of gas drainage efficiency about feather-veined 1000m length-drill hole[J].Journal of China Coal Society,2010,35(1):76-79.
[4]程林松,李春兰,马志远.气藏多分支水平井产能的计算方法[J].石油学报,1998,29(4):81-84.CHENG Linsong,LI Chunlan,MA Zhiyuan. A method for calculating the productivity of multi-branch horizontal wells in gas reservoir[J].Acta Petrolei Sinica,1998,29(4):81-84.
[5]姜振强.多分支水平井产能评价与参数优化研究[D].北京:中国地质大学(北京),2009.
[6]李明忠,陈会娟,张贤松,等.煤层气多分支水平井井筒压力及入流量分布规律[J].中国石油大学学报,2014,38(1):92-97.LI Mingzhong,CHEN Huijuan,ZHANG Xiansong,et al. Wellbore pressure and inflow rate distribution of multi-lateral horizontal well for coal bed methane[J].Journal of China University of Petroleum,2014,38(1):92-97.
[7]刘大伟,王益山,虞海法,等.煤层多分支水平井安全钻井技术[J].煤炭学报,2011,36(12):2109-2114.LIU Dawei,WANG Yishan,YU Haifa,et al.Safety drilling technology of multi-lateral horizontal wells in coal bed[J]. Journal of China Coal Society,2011,36(12):2109-2114.
[8]王永昌,苏士波,李武生,等.煤层气多分支水平井钻井工艺研究[J].天然气与石油,2013(5):58-61,8.WANG Yongchang,SU Shibo,LI Wusheng,et al. Study on multibranch horizontal coalbed methane well drilling technology[J].Natural Gas and Oil,2013(5):58-61,8.
[9]牛杰.沙曲煤矿井上下钻孔对接预抽煤层瓦斯技术效果分析与评价[D].徐州:中国矿业大学,2014.
[10]郭嗣琮.模糊分析中的结构元方法[J].辽宁工程技术大学学报:自然科学版,2002,21(5):670-673.GUO Sicong.Method of structuring element in fuzzy analysis[J].Journal of Liaoning Technical University:Nature and Science Edition,2002,21(5):670-673.
[11]郭嗣琮.模糊值函数分析学的结构元方法简介(Ⅰ):结构元与模糊数运算[J].数学的实践与认识,2008(2):87-93.GUO Sicong.Brief introduction of fuzzy-valued function analytics base on fuzzy structured element method(Ⅰ):structure element and fuzzy number operation[J].Mathematics in Practice and theory,2008(2):87-93.
[12]刘海涛,郭嗣琮.基于模糊结构元表述的模糊数排序[J].模糊系统与数学,2010,24(5):61-67.LIU Haitao,GUO Sicong. Fuzzy number sequence based on expression of fuzzy structured element[J].Fuzzy Systems and Mathematics,2010,24(5):61-67.
[13]王胜本,赵黎明,元继学.模糊决策中常用的规范化方法[J].天津大学学报,2008,41(4):294-297.WANG Shengben,ZHAO Liming,YUAN Jixue. Normalization methods in fuzzy decision making[J].Journal of Tianjin University,2008,41(4):294-297.