| 压裂液滤失的二维数值模拟 |
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| 引用本文： | 尹成,陈涛,黄小革,年永吉.压裂液滤失的二维数值模拟[J].西南石油大学学报（社会科学版）,2016,21(2):43-45. |
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| 作者姓名： | 尹成 陈涛 黄小革 年永吉 |
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| 作者单位： | 1.西南石油学院石油工程学院,四川 南充 637001 |
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| 摘 要： | 结合油藏工程和数值模拟技术,根据压裂施工过程中滤失的压裂液在地层中二维流动和压裂液为非牛顿型流体的实际,建立了非牛顿型压裂液的二维动态滤失模型,用数值方法求解,并将计算结果与一维模型结果进行对比分析。计算表明:仅考虑压裂液垂直于裂缝壁面一维流动所计算的滤失速度会偏小,并且这种差值会因地层渗透性的增加而加大。二维方法由于考虑了压裂液的非牛顿特性和二维流动,其结果也比一维模型更符合现场实际,可以减少压裂施工的风险,提高压裂设计的可靠性。
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| 关 键 词： | 滤失 压裂液 二维模型 数值模拟 |
| 收稿时间： | 1999-02-25 |
HYBRID GENETIC ALGORITHM AND ITS APPLICATION IN SEISMIC WAVE IMPEDANCE IN VERSION |
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| Yin Cheng Chen Tao Huang Xiao-ge Nian Yong-jie.HYBRID GENETIC ALGORITHM AND ITS APPLICATION IN SEISMIC WAVE IMPEDANCE IN VERSION[J].Journal of Southwest Petroleum University(Social Sciences Edition),2016,21(2):43-45. |
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| Authors: | Yin Cheng Chen Tao Huang Xiao-ge Nian Yong-jie |
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| Institution: | Southwest Petroleum Inst |
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| Abstract: | A hybrid fast genetic algorithm (H2O) is proposed on the basis of various characteristics of nature evolution. This algorithm is combined with niche technician, a variety of crossover schemes, multi-populations and catastrophism phenomenons. Last sense, it can efficiently eliminate premature convergence of GA on the nonlinear multi-parameter optimization problem. Through testing seism wave impedance inversion, the result is obviously improved compared with the convention genetic algorithm in the convergence ability and computation efficiency. |
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| Keywords: | algorithm wave impedance |
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