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在钻进过程中,影响钻井速度和成本的主要因素是:钻头类型。钻压、转速、水力参数、泥浆性能和井底压差。为了优选这些参数。需要建立多元钻速方程和钻井成本方程。以及反映钻井工艺装备要求的约束条件。对于一只钻头钻进过程的优化,需要采用有约束的非线性规划方法,以解决诸参数的优选和参数间的优配。而全井钻进过程的优化则是一个多阶段的决策问题,其中每一只钻头方案的确定都是一次非线性规划,全井方案又是若干单只钻头方案的组合,解决这样一个复杂问题,需要利用动态规划原理和研究特殊的计算方法。
During drilling, the main factors that affect drilling speed and cost are the type of drill bit. Drilling pressure, speed, hydraulic parameters, mud performance and bottom hole pressure difference. In order to optimize these parameters. It is necessary to establish multivariate drilling rate equations and drilling cost equations. As well as reflecting the requirements of drilling equipment and equipment constraints. For the optimization of a drill bit drilling process, a constrained nonlinear programming method is needed to solve the optimization of parameters and the optimization of parameters. The whole well drilling process optimization is a multi-stage decision-making, in which the determination of each bit program is a non-linear programming, the whole well program is a combination of a number of single bit solution to solve such a complex problem , Need to use the principle of dynamic programming and research special calculation method.