射孔枪枪体断裂原因及预防措施

Causes of damage of perforating guns and precautions

射孔枪枪作除受井内的介质腐蚀、井温及压力的影响外，主要威胁来自射孔弹发射时产生的高压及巨大冲击波，这是造成枪作断裂的主要原因。针对这种情况，提出了相应的改进措施：1．改善枪体质量，包括改过枪作结构、注重枪体选材和热处理、完善检测手段和检验方法；2．加强进货管理和使用管理；3．开展技术改造与革新；4．加强枪作断裂的分析研究工作。

Besides the influence of the well fluid corrosion and the downhole temperature and pressure, the main causes of the damage of the gun body of a perforator lies in the high pressure and tremendous impact wave produced in launching the perforationg charge In the light of this situation corresponding measures are presented, including: 1. improvng the quility of the gun body; 2. strengthening the operation management 3. carrying on technical modification and innova-tion; 4. conducting further investigation in the causes of the damage of the gun body.