封隔器性能信封曲线

Envelope Curve of Packer Property

随着塔里木油田的大规模勘探开发,油气井具有超深、超高压、高温的特点,特别是库车山前高压气井地层压力高,井眼尺寸小,如果在射孔作业、增产措施作业等施工过程中封隔器失封,打捞磨铣封隔器非常困难。引入封隔器性能信封曲线,将该曲线与管柱力学结合在一起,能有效防止现场施工时封隔器失效。

With the large-scale exploration and development of Tarim oilfield,oil and gas wells has the characteristics of ultra deep,ultra-high pressure,high temperature,especially in high pressure gas well at kuqa piedmont,formation pressure is high,hole size is small,and if packer is no seal in the process of the perforating and stimulation measure operations,the salvage or mill of the packer is very difficult. The envelope curve of packer performance is introduced,and combining this curve with the pipe string mechanics can effectively prevent the failure of the packer in the field operation.