吴起采油厂注水系统腐蚀机理及影响因素研究

注水系统结垢是油田注水开采过程中面临的一个重大难题。由于油井含水的不断上升，腐蚀结垢越来越严重，由此造成生产维护成本不断增加而且影响了油田的正常生产，为此注采系统特别是油水井杆管腐蚀治理工作迫在眉睫。由此，以吴起采油厂的特定地质环境条件为基础，深入开展注采系统防腐阻垢技术研究，摸清重点区块的腐蚀结垢机理，掌握其腐蚀结垢规律，有针对性地开展防护措施，对于有效地改善其介质环境，保证油气井的生产寿命、提高油气开采效益、提升油田开发整体水平具有重要意义。

Mechanism and Influencing Factors of Water Injection System Corrosion in Wuqi Oil Production Plant

Water injection system scaling is one of the major problems faced in the process of oilfield waterflood recovery. Because of the increasing of oil well water cut, corrosion and scaling is more and more serious, which has resulted in production and maintenance costs continue to increase and affect the normal oil production. Therefore, corrosion control of the inj ection-production system ,especially the oil-water well casing is extremely urgent. In this paper, based on specific geological conditions in Wuqi oil production plant, the corrosion and scale inhibition technology of injection-production system was studied, corrosion and scaling mechanism was found out, the corrosion and scaling law was obtained, and preventive measures were carried out, which can effectively improve the media environment, prolong pump inspection cycle, ensure the oil and gas well production life, and improve oil and gas exploration benefit.