Researches have been carried out in the second reservoir by physical modeling method to find out the formula weight of the polymer, injection rate, slug size and viscosity of the polymer solution.
通过物理模拟方法，研究杏北油田二类油层聚合物相对分子质量、注入速度、段塞大小、聚合物溶液黏度、不同注聚方式对驱油效果的影响。
By use of the simple method of the goal programming, we obtains the calculation formula and some properties of the generalized solution of fuzzy equation.
运用目的规划的单纯型方法，得到了模糊方程广义解的计算公式及模糊方程广义解的若干性质。
By use of the simplex method of the goal programming, we obtains the calculation formula and some properties of the generalized solution of fuzzy equation.
运用目的规划的单纯型方法，得到了模糊方程广义解的计算公式及模糊方程广义解的若干性质。
By use of the time split method, a conservation difference formula is established to find the solution to the shallow water equation based on the finite volume control method from integral equations.
采用二分步法，从积分型方程出发，在有限控制体上建立守恒型差分格式，对二维浅水波方程进行求解。
Because the hydraulic parameters of each component of the network are determined by a nonlinear flow formula, the solution to this system can be got by the Nexvton Raphson method.
由于管网各管段的水力参数均系非线性方程决定，因此，系统工况可采用牛顿法求解。
The present invention relates to a formula of the tube-sealing solution sodium citrate injection and the preparation method and the usage.
本发明涉及一种封管液枸橼酸钠注射液的配方及其制备方法和用途。
The present invention relates to a formula of the tube-sealing solution sodium citrate injection and the preparation method and the usage.
本发明涉及一种封管液枸橼酸钠注射液的配方及其制备方法和用途。
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