基于灰色关联法的酸蚀导流能力影响因素
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摘要
酸蚀裂缝导流能力是评价酸化压裂的重要因素,通过利用FCES—100导流仪进行酸蚀裂缝导流能力影响因素的研究,并采用正交实验和灰色关联法分析各参数对酸蚀导流能力的影响程度。结果显示:交联酸的酸蚀裂缝导流能力随着酸液浓度的升高而增加;交联酸的酸蚀裂缝导流能力随着酸岩接触时间的延长而增大,但随着酸岩接触时间的增加,酸蚀裂缝导流能力的增加幅度越来越小; 50 MPa以前,高铺砂浓度的酸蚀裂缝导流能力更低;当闭合压力大于50 MPa时,高铺砂浓度下,导流能力会越大;利用灰色关联分析法,上述考虑的因素对酸蚀导流能力的影响程度从大到小分别为:铺砂浓度、酸液浓度、酸岩接触时间、闭合压力。明确了相关影响因素对酸蚀裂缝导流能力的大小关系,为更加有效进行酸压设计提供了重要指导。
The ability of acid-etched fracture conductivity is an important factor to evaluate acid fracturing. The influence factors of acid-etched fracture conductivity are studied by using FCES—100 flow director. The orthogonal experiment and grey correlation method are used to analyze the parameters. The degree of influence of acid-etched conductivity. The results show that the conductivity of the acid-etched fracture of the cross-linked acid increases with the increase of the acid concentration; The conductivity of the acid-etched fracture of the cross-linked acid increases with the contact time of the acid rock,but with the acid when the contact time of rock increases,the increase of the conductivity of the acid-etched fracture is getting smaller and smaller; Before 50 MPa,the conductivity of the acid-etched fracture with high sanding concentration is lower; When the closing pressure is greater than 50 MPa,under the high sanding concentration,the conductivity is greater. With the gray correlation analysis method,the factors affecting the acid-etched conductivity are as follows: sand concentration,acid concentration,acid rock contact time,and closing pressure. The relationship between the relevant influencing factors and the conductivity of the acid-etched fractures is clarified,which provides an important guide for more effective acid pressure design.
The ability of acid-etched fracture conductivity is an important factor to evaluate acid fracturing. The influence factors of acid-etched fracture conductivity are studied by using FCES—100 flow director. The orthogonal experiment and grey correlation method are used to analyze the parameters. The degree of influence of acid-etched conductivity. The results show that the conductivity of the acid-etched fracture of the cross-linked acid increases with the increase of the acid concentration; The conductivity of the acid-etched fracture of the cross-linked acid increases with the contact time of the acid rock,but with the acid when the contact time of rock increases,the increase of the conductivity of the acid-etched fracture is getting smaller and smaller; Before 50 MPa,the conductivity of the acid-etched fracture with high sanding concentration is lower; When the closing pressure is greater than 50 MPa,under the high sanding concentration,the conductivity is greater. With the gray correlation analysis method,the factors affecting the acid-etched conductivity are as follows: sand concentration,acid concentration,acid rock contact time,and closing pressure. The relationship between the relevant influencing factors and the conductivity of the acid-etched fractures is clarified,which provides an important guide for more effective acid pressure design.
引文
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11 汪道兵,伊向艺,吴元琴,等.应用灰色关联法分析影响酸岩反应速率的主次因素[J].油气藏评价与开发,2012,2(2):50-53Wang Daobing,Yi Xiangyi,Wu Yuanqin,et al. Analysis of primary and secondary factors affecting acid rock reaction rate by using grey correlation method[J]. Review and Development of Oil&Gas Reservoirs,2012,2(2):50-53
12 曲占庆,周丽萍,郭天魁,等.基于灰色关联法的裂缝导流能力影响因素分析[J].西安石油大学学报(自然科学版),2015,30(4):82-85Qu Zhanqing,Zhou Liping,Guo Tiankui,et al. Analysis of factors affecting fracture conductivity based on grey correlation method[J].Journal of Xi'an Shiyou University(Natural Science Edition)2015,30(4):82-85
13 曲占庆,刘晓强,齐宁,等.基于灰色关联法高温堵剂性能评价[J].化学试剂,2016,38(4):307-310Qu Zhanqing,Liu Xiaoqiang,Qi Ning,et al. Evaluation of high temperature plugging agent performance based on grey correlation method[J]. Chemical Reagents,2016,38(4):307-310
2 车明光,袁学芳.酸蚀裂缝导流能力实验与酸压工艺技术优化[J].特种油气藏,2014,21(3):120-123Che Mingguang,Yuan Xuefang,Test of acid etched fracture conductivity and optimization of acid fracturing[J]. Special Oil and Gas Reservoirs,2014,21(3):120-123
3 李小刚,杨兆中,张俊良,等.酸压裂缝导流能力研究回顾与展望[J].新疆石油地质,2012,33(2):241-243Li Xiaogang,Yang Zhaozhong,Zhang Junliang,et al. Review and prospect of study on acid fracturing conductivity[J]. Xinjiang Petroleum Geology,2012,33(2):241-243
4 李沁,伊向艺,卢渊,等.储层岩石矿物成分对酸蚀裂缝导流能力的影响[J].西南石油大学学报,2013,35(2):102-107Li Qin,Yi Xiangyi,Lu Yuan,et al. Influence of reservior minearlogical composition on acid fracture conductivity[J]. Journal of Southwest Petroleum University,2013,35(2):102-107
5 牟建业,张士诚.酸压裂缝导流能力影响因素分析[J].油气地质与采收率,2011,18(2):69-71Mou Jianye,Zhang Shicheng. Influence factor analysis on acid pressure rips diversion capacity[J]. Petroleum Geology and Recovery Efficiency,2011,18(2):69-71
6 张路锋,牟建业,贺雨南,等.高温高压碳酸盐岩油藏酸蚀裂缝导流能力实验研究[J].西安石油大学学报(自然科学版),2017,32(4):93-97Zhang Lufeng,Mou Jianye,He Yunan,et al. Experimental study on the conductivity of acid-etched fracture in carbonate reservoirs under high temperature and pressure[J]. Journal of Xi'an Petroleum University(Natural Science Edition),2017,32(4):93-97
7 车明光,袁学芳,范润强,等.酸蚀裂缝导流能力实验与酸压工艺技术优化[J].特种油气藏,2014,21(3):120-123,157Che Mingguang,Yuan Xuefang,Fan Runqiang,et al. Experiments on conductivity of acid-etched fracture and optimization of acid fracturing technology[J]. Special Oil and Gas Reservoirs,2014,21(3):120-123,157
8 李年银,赵立强,张倩,等.酸压过程中酸蚀裂缝导流能力研究[J].钻采工艺,2008,31(6):59-62Li Nianyin,Zhao Liqiang,Zhang Qian,et al. Study on acid etched fracture conductivity in acid fracturing[J]. Drilling&Production Technology,2008,31(6):59-62
9 曲占庆,周丽萍,曲冠政,等.高速通道压裂支撑裂缝导流能力实验评价[J].油气地质与采收率,2015,22(1):122-126Qu Zhanqing,Zhou Liping,Qu Guanzheng,et al. Experimental study on influencing factors of flow conductivity for channel fracturing proppant[J]. Petroleum Geology and Recovery Efficiency,2015,22(1):122-126
10 王兴宏,操红梅,谢政,等.酸化压裂导流能力的系统实验研究[J].国外油田工程,2001,17(2):6-9Wang Xinghong,Cao Hongmei,Xie Zheng,et al. System experimental study on acid fracturing conductivity[J]. Foreign Oilfield Engineering,2001,17(2):6-9
11 汪道兵,伊向艺,吴元琴,等.应用灰色关联法分析影响酸岩反应速率的主次因素[J].油气藏评价与开发,2012,2(2):50-53Wang Daobing,Yi Xiangyi,Wu Yuanqin,et al. Analysis of primary and secondary factors affecting acid rock reaction rate by using grey correlation method[J]. Review and Development of Oil&Gas Reservoirs,2012,2(2):50-53
12 曲占庆,周丽萍,郭天魁,等.基于灰色关联法的裂缝导流能力影响因素分析[J].西安石油大学学报(自然科学版),2015,30(4):82-85Qu Zhanqing,Zhou Liping,Guo Tiankui,et al. Analysis of factors affecting fracture conductivity based on grey correlation method[J].Journal of Xi'an Shiyou University(Natural Science Edition)2015,30(4):82-85
13 曲占庆,刘晓强,齐宁,等.基于灰色关联法高温堵剂性能评价[J].化学试剂,2016,38(4):307-310Qu Zhanqing,Liu Xiaoqiang,Qi Ning,et al. Evaluation of high temperature plugging agent performance based on grey correlation method[J]. Chemical Reagents,2016,38(4):307-310