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渗流方程

渗流方程的相关文献在1984年到2022年内共计105篇,主要集中在数学、石油、天然气工业、力学 等领域,其中期刊论文97篇、会议论文8篇、专利文献5090篇;相关期刊67种,包括吉林大学学报(理学版)、地球物理学报、岩石力学与工程学报等; 相关会议7种,包括第十六届全国流体力学数值方法研讨会、第十一届全国渗流力学学术大会、2009年第三届油气田开发技术大会等;渗流方程的相关文献由186位作者贡献,包括刘福平、杨长春、鲜学福等。

渗流方程—发文量

期刊论文>

论文:97 占比:1.87%

会议论文>

论文:8 占比:0.15%

专利文献>

论文:5090 占比:97.98%

总计:5195篇

渗流方程—发文趋势图

渗流方程

-研究学者

  • 刘福平
  • 杨长春
  • 鲜学福
  • 王宏图
  • 袁洪君
  • 卢国富
  • 杜云贵
  • 罗平亚
  • 蒲春生
  • 曹镇潮
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 刘正奎; 王利敏; 刘洪涛; 李军; 涂爱勇; 李晓平
    • 摘要: 单项流体油井根据泵沉没度确定产液量,多项流体油井根据IPR曲线拐点确定产液量,都未考虑负压对长期稳产的影响。针对地层各项参数影响计算结果的合理性、井底负压对稳产的影响较大等问题,将试井流压换算为环空动液面下降高度,绘制QS曲线,回归曲线得到产液量随动液面下降高度变化的油井地层流体渗流方程及方程曲线曲度系数表达式。实际应用时,先计算QS曲线的曲度系数,选定渗流方程,然后计算油井解堵最小负压,将解堵最小负压换算成动液面下降高度,导入选定的渗流方程,计算的产液量即为合理产液量。在排2区块5口井的应用显示,投产产液量大于合理产液量进行生产的油井,出砂比较严重,解堵防砂有效期短,含水上升速度快;投产液量已接近合理产液量进行生产的油井,能够满足油井长期稳产的要求。
    • 李军; 刘正奎; 刘洪涛; 周皓宾; 王利敏; 涂爱勇
    • 摘要: 针对油井产状不合理,产液量超过渗流最大值,骨架破坏、地层出砂、产量下降等问题,根据油井动态渗流方程,对试井稳定产量(Q)与对应的动液面(S)下降高度数据进行处理,确定渗流方程;以地层渗透率、孔隙度等参数计算油层解堵最小负压,作为生产压差,并折算为动液面下降高度(S),代入渗流方程得到合理产量。该产量下的井底负压为油井解堵最小负压,避免了负压过大导致骨架破坏出砂,引起产量下降。该方法在油田进行了5井次应用,结合油井生产历史数据分析,当生产液量大于合理产液量后,油井出砂严重,油井以合理产液量进行生产,能够满足油井稳产的要求。
    • 陈国芳; 吴丹; 吕俊良
    • 摘要: 针对数值求解渗流方程时,使用标准有限体积法出现数值界面不能有效向前传播的"数值热障"现象,提出一种修正的有限体积法,该方法扩散系数的取值采用密度变量在两个相邻单元的代数平均值.数值实验结果表明,新格式可有效避免"数值热障"现象.
    • 蔡喜东; 高文君; 宋红霞
    • 摘要: 为了揭示Logistic和Generalized-Arc-Tangent产量递减方程的渗流特征,选取特殊的油相相渗关系式,按照Arps产量递减方程理论,推导出了Logistic和Generalized-Arc-Tangent产量递减方程及其对应水相相渗关系式.研究结果表明,在注水保持地层压力的条件下,产量递减类型主要由油水两相渗流特征共同决定.推导出的油水两相相渗关系式均是以出口端含水饱和度为变量,符合行业相渗关系式标准,克服了以往产量递减方程理论推导时采用平均含水饱和度为变量的拟相渗关系式缺陷.通过吐哈丘陵油田、温五区块的应用,实际产量与经油水两相相渗关系式分别确定的产量基本一致.
    • 朱南南; 张浪; 范喜生; 舒龙勇
    • 摘要: 为了提出一种简单快速求解有效抽采半径的方法,基于周世宁院士提出的瓦斯径向非稳定渗流方程,采用自模拟方法求出近似解析解,即径向流场瓦斯压力分布表达式,以此进一步建立有效抽采半径的数学表达式,研究表明:在无限流场条件下,有效抽采半径与抽采时间的平方根成正比,与抽采负压满足非线性的正相关关系;但不同抽采负压条件下,钻孔周围瓦斯压力分布规律差异较小,因此,可以采用简化的瓦斯压力表达式来近似反映径向流场的瓦斯压力分布规律.该近似解及有效抽采半径的表达式可以用来确定煤层瓦斯抽采的相关参数,通过相关实例验证了有效抽采半径表达式的准确性.%In order to provide a simple and rapid method to solve the effective drainage radius,based on a gas radial unstable seepage equation proposed by Academician Zhou Shining,a self simulation method was applied to get the approximate solution,which would be the gas pressure distribution expression of the radial flow field.Thus a mathematical expression of the effective drainage radius was further established.The study showed that under the condition of an infinite flow field,the square root of the effective drainage radius and the drainage time would be in a direct ratio and the square root of the drainage negative pressure could meet the nonlinear positive correlation.Under the different drainage negative pressure condition,the gas pressure distribution law around the borehole would be small in difference.Therefore,a simplified gas pressure expression would be applied to approximately reflect the gas pressure distribution law of the radial flow field.The approximate solution and the effective drainage radius expression could be applied to determine the relevant parameters of the seam gas drainage.The related experiments were verified the accuracy of the effective drainage radius expression.
    • 高文君; 郝巍; 盛寒; 魏利燕; 温灵祥; 郑登桥
    • 摘要: 在渗流理论方程的基础上,引入艾富罗斯实验结果,并结合Willhite,Chierici等人提出的油相相渗关系式,导出了双曲递减、指数递减、调和递减方程及其对应水相相渗关系式.研究结果表明,油、水两相相渗关系式共同决定着水驱油田产量递减方程;以往的产量递减方程渗流理论研究中,油相相渗关系式不是以出口端含水饱和度为自变量的行业标准相渗关系式,而是以平均含水饱和度为自变量的拟相渗关系式.通过吐哈鄯善油田三间房组油藏、吉林红岗油田萨尔图组油藏、大港马西油田沙一下段油藏的应用,实际产量与油水两相相渗关系式分别确定的递减方程基本一致,值得其他油田在递减规律研究中借鉴.%Based on the equation of percolation theory and introduction of Эфpoс's experimental results,and combined with oil-phase relative permeability formula proposed by Willhite and Chierici,hyperbolic,exponential and harmonic decline equations and the corresponding water-phase relative permeability formula are derived.The study results show that oil-water two-phase relative permeability relationships jointly determine the production decline equations in waterflooding oilfields;in the previous studies on the percolation theory of production decline equation,the oil-phase relative permeability formula was not the industrial standard relative permeability formula which should take the outlet water saturation as an independent variable,but a pseudo relative permeability formula taking the average water saturation as an independent variable.Finally,the actual applications of the new relative permeability formulas in Sanjianfang formation in Shanshan oilfield of Tuba basin,Sartu formation in Honggang oilfield of Jinlin oilfield and the lower section of E3s1 in Maxi oilfield of Dagang oilfield show that the actual production is basically the same as the results obtained from oil and gas relative permeability formulas,which could be a reference for the study on production declines in other oilfields.
    • 田玲玲; 祝家麟
    • 摘要: The direct boundary integral equation deduced by Green’s formula and the fundamental solu‐tion is considered to solve seepage problem .After the boundary is discrete ,the numerical solution is gained by solving linear equations and by calculating the discrete integration expression of solution . This paper presents the analytical formula and Gaussian quadrature to calculate the integration formu‐la .A non‐overlapping domain decomposition method combining direct boundary element formulation is applied to solve seepage problems ,and calculating orthotropic case in several domains .Constant el‐ement is used in the computing program of this paper ,which is written by Fortran90 .The numerical experiments demonstrated that the method is reliable and effective .%用G reen公式和基本解推导得出直接边界积分方程来求解渗流问题。经边界元离散后,通过求解线性方程组和计算解的离散积分表达式得原问题的数值解。区域分解算法将大型问题分解为小型问题﹑复杂边值问题分解为简单边值问题﹑允许并行计算,此方法愈来愈受到重视。而非重叠性区域分解算法的优点是仅在边界上交换数据,避免了重叠性区域分解算法必须在公共区域计算若干公共点的值,减少了计算量,与直接边界元方法得到边界物理量可以很好配合。这两种算法结合起来求解渗流问题,而且在多个区域中可以并行计算各向异性的问题,数值算例表明该方法是有效可行的。
    • 汤林冰; 詹华税
    • 摘要: 结合Fichera-Oleinik理论,研究一类双重退化渗流方程ut=div(ρα ▽um),(x,t)∈QT=Ω×(0,T)的可解性问题.其中Ω是RN中的有界区域,边界aΩ充分光滑,ρ(x)=dist(x,aΩ),m>1,α≥2,u0非负,u0∈Lm+1(Ω),ρα/2 ▽u0∈L∞(0,T;L2(Ω)).借助于一般粘性解的定义,给出了该渗流方程存在具有齐次边界条件的弱解的定义,并证明其存在性.
    • 黄东兰
    • 摘要: 研究了一类带非线性梯度项的Newton渗流方程ut-△um=F (u ,△u )的梯度爆破性质,即△u 在有限时间爆破而u 仍然一致有界。首先,在右端反应项只含非线性梯度项时,对任意连续Dirichlet边界条件,得到了当初值充分大时,方程梯度爆破。其次,在右端反应项含有梯度和零阶非线性项时,得到了方程梯度爆破的某些结果,这些结果部分地回答了Souplet于2002年提出的一个相关问题。最后,在右端反应项含有非局部梯度源时,得到了通常不会产生梯度爆破的结果。%A property of gradient blow up for a kind of Newton filtration equation ut-△um=F (u, △u) with nonlinear gradient is studied. This property concludes that u is uniformly bounded when△u blows up in limited time. We firstly show that if the reaction term in the right side of an equation has only a nonlinear gradition term, then for any continuous boundary condition, this equation blows up gradiently when the initial value is big enough. Secondly, some conclusions about gradient blow-up are reached if the reaction term has a gradient term and a zero-order nonlinear term, which partly solved the problem proposed by Souplet in 2002. Finally, we show an equation does not blow up gradiently when the reaction term of right side has nonlocal gradient source.
    • 黄东兰12
    • 摘要: 研究了一类带非线性梯度项的Newton渗流方程u_t-△u~m=F(u,▽u)的梯度爆破性质,即▽u在有限时间爆破而u仍然一致有界.首先,在右端反应项只含非线性梯度项时,对任意连续Dirichlet边界条件,得到了当初值充分大时,方程梯度爆破.其次,在右端反应项含有梯度和零阶非线性项时,得到了方程梯度爆破的某些结果,这些结果部分地回答了Souplet于2002年提出的一个相关问题.最后,在右端反应项含有非局部梯度源时,得到了通常不会产生梯度爆破的结果.
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