Study on the model for the requirement planning of well-drilling materials

The investment of well drilling is great and the management of well drilling materials is difficult.For solving the difficulty of the management of well drilling materials,the model for the requirement planning of well drilling materials is put forward based on the analysis of the characteristics of oil drilling material requirement.According to the characteristics of a drilling bit which can be used repeatedly and whose wear is of randomness,the deterministic model and the stochastic model for the requirement planning of well drilling materials are proposed by using the of the material requirement planning method for the traditional manufacturing industry and the expectation method separately.The establishment and application of the models provide the help of reducing material supplying cycle,reducing inventory cost and optimizing material management for petroleum drilling enterprises.