The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
A Monitoring/Identifying System for Tubing Conveyed Perforation
Author(s): 
Pages: 128-133
Year: Issue:  2
Journal: WELL LOGGING TECHNOLOGY

Keyword:  油管输送射孔(TCP)监测识别射孔枪爆炸信号;
Abstract: 在深井、水平井及其他复杂条件下(如封隔器、测试联作)进行射孔作业时,由于井场噪声的影响及射孔条件的制约,操作人员很难判断射孔枪爆炸.介绍了能够自动识别判断射孔枪爆炸的TCP监测识别系统.该系统采用时域分析方法提取射孔枪爆炸起始时间等状态参数;采用平方处理突出有用信号;采用窗函数削弱噪声影响;采用50~300 Hz的带通滤波去除加压泵振动引起的噪声.射孔枪爆炸信号经上述处理后,信噪比提高.根据实际信号幅值及噪声强弱,在曲线图上选择合适的门限值,就可以得到射孔枪爆炸的准确时间.经多次实验及油田的实际应用,证明该系统能够自动识别判断井下爆炸信号,数据真实可靠,对复杂井、联合作业、多级起爆等均能正确判断射孔枪起爆时间及射孔结果.
Related Articles
No related articles found