多紧急等级复杂维修任务即时调度优化与应用

Method and application of complex maintenance tasks just-in-time scheduling optimization considering multiple emergency levels

在油气田实际生产过程中,会出现种类繁多且紧急程度不同的维修任务,并且出现维修任务的油井分布极广。目前,维修人员的路径规划仍然依赖于人工经验,调度效率低、人员利用率低。对维修技术员进行合理安排,尽快完成各项维修任务,可以有效地保障油气田的安全平稳生产,减少因故障停机造成的经济损失。在分析实际油气田生产过程中维修任务的特点后,本文针对不同维修任务情况,提出了定时调度、临时调度、手动调度以及紧急调度四种方案。并且建立了定时调度混合整数线性规划模型、临时调度和手动调度混合整数线性规划模型,以及紧急调度模型。利用C语言编写调度软件并进行了应用验证,结果表明,所提出的调度方案可以实现对不同情况下维修任务的及时有效处理。

In actual production process of oil and gas fields,there will be a wide variety of maintenance tasks with different urgency levels.And the oil wells with maintenance tasks are widely distributed.At present,the routing scheduling of maintenance technicians still relies on manual experience,with low scheduling efficiency and low labor force utilization.It is of great significance to make reasonable arrangements for maintenance technicians to ensure that they complete various maintenance tasks as soon as possible.This can effectively guarantee the safe and stable production of oil and gas fields and thus reduce the economic losses caused by downtime.In this paper,after analyzing the characteristics of maintenance tasks in the actual production process of oil and gas fields,four schemes were proposed,which are daily general scheduling,temporary scheduling,manual scheduling and emergency scheduling according to different scenarios.Moreover,different mixed linear programming models were established for these four schemes.A scheduling software written in C#language was verified by field application.The results showed that the proposed scheduling scheme can realize the timely and effective processing of maintenance tasks in different situations.