Abstract: The main factors that affect drilling perameters rate and cost are bit type,bit pressure,rotary speed,hydraulic perameters,mud properties and bottom hole differential pressure,To optimize these parameters,it is necessary to establish a multiple drilling rate equation and cost equation,as well as constraints imposed by drilling technology and equipment conditions.Non-linear programming method can be used for the optimization of each bit run to achieve proper selection of individual parameters and a good match between them.However,for a whole well optimization which is a combination of a series of optimization of bit run multi-interval decision technique should be considered,and special algorithm should be introduced.

摘要： 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。