东海钻井平台钻具损坏事故分析

The accident analysis on the damaged drilling tool on Donghai Platform

文章介绍了我国东海平湖油气田钻井平台钻进时 ,钻具损坏事故研究过程及结论。对钻具刺漏现象的大量试验和研究 ,意外地发现并证明了该油气田地层内存在少量的H2 S气体。虽然这一气体的含量不高 ,然而这一研究成果对于全面认识平湖油气田的地层状况 ,在今后的油气生产中正确确定有关装备的防腐等级以及预测生产装备的使用寿命 。

This paper introduces the profile of the drilling platform in Donghai Pinghu Oil & Gas Field and the investigtion and result done on the damaged tools.The result,the testing and investigation on pitting show little H 2S exits in this field formation.Although it is only little amount the investigation gives us a general understanding of the field formation,thus offers us the basic to make decision and forecast what anti-corrosion degree of tools to used.