【摘要】 对中原油田的钻头使用资料进行了分析统计，得出了用瑞利分布和自定义概率密度分布建立的钻速、纯钻进时间和钻头数量之间的统计关系，并通过回归处理，获得了２１５．９ｍｍ钻头的瑞利分布统计结果。在此基础上，应用计算机系统模拟理论和方法，建立了钻头规划的离散型随机模型，编制了相应的软件，实现了在给定井数、限制钻头类型和给定钻进指标条件下钻头数量和类型的模拟预测，并通过比较获得了最优解。这一系统模拟方法和理论可作为有关部门进行钻头生产、购销和使用科学化管理决策的依据更多还原

【Abstract】 According to the results of analyzing bit data from Zhongyuan oilfield,a statistical relationship between drilling rate,drilling time and bit quantity used is established by using Rally or self defined probability distribution function,and then the 215 9 mm bit’s parameters of Rally function are obtained with regression analysis.On the above basis,a discrete random model for bit planning is founded by means of the system simulation theory.A corresponding program to predict types and quantity of the specific bit or drilling targets for certain wells is designed.Furthermore,the optimization result is gained by a comparison method.This system simulation can be used as a basis for scientific management and decision of production,saling and use of bit related departments.更多还原