摘要：In the oilfield development, the perforation process is known as the “goal”, therefore, the perforating operation is the most important process in the well completion process. However, in the perforating process, the perforating gun is working in the down hole; the operator cannot observe on the ground. And the perforating gun itself, and the perforating gun assemble process produced some unpredictable situation, such as broken blasting, gun broken, etc. These problems will influent the well completion process; even make the whole well scrapped. In this thesis, we will analysis one unpredictable situation in Bohai oilfield, through a variety of experiments to find and analyze the cause of the abnormal cases, to avoid the same problems in the future work.
