无线起爆技术在油管输送射孔中的应用  

Application of Wireless Detonation Technology in Tubing Conveying Perforation

作　　者：宋宁 赵开良 卢才浩 彭昕 赵义山 刘兵 SONG Ning;ZHAO Kailiang;LU Caihao;PENG Xin;ZHAO Yishan;LIU Bing(Zhongyuan Geosteering&Logging Company,Sinopec Matrix Corporation,Puyang,Henan 457001,China)

机构地区：[1]中石化经纬有限公司中原测控公司,河南濮阳457001

出　　处：《测井技术》2023年第6期772-776,共5页Well Logging Technology

基　　金：中石化经纬有限公司科技攻关项目“油气井射孔智能安全起爆及精准延时传爆技术研究”(JWKT2307)。

摘　　要：油管输送射孔是现阶段射孔的主要工艺,现有的适用于油管输送射孔的起爆技术在复杂的油气井情况下,容易造成误爆、拒爆等意外工况,存在一定的技术缺陷。基于这些问题,开展了无线起爆技术研究,将起爆钥匙控制球沿油管内投入井内,利用其发出频率为9.6kHz和48kHz的正弦型阶梯波无线载波信号,井下电感应起爆器接收该信号后,引爆射孔枪。通过无线起爆系统设计、无线传输的载波调制方法研究以及井下信号调制解调方式研究,将无线起爆技术成功应用于油管输送射孔中。该技术在中原油田多口井中成功应用,对降低射孔施工安全风险具有重要意义。Tubing conveying perforation is the main process of perforation at present.In complex oil and gas wells,the existing detonation technology suitable for tubing perforation is easy to cause accidental conditions such as false explosion and rejection of explosion,and there are certain technical defects.Based on these issues,research on wireless detonation technology is carried out.The detonating key control ball is put into the well along the oil pipe,and the sinusoidal stepped wave wireless carrier signal with frequency of 9.6 kHz and 48 kHz is emitted by it.After receiving this signal,the downhole induction detonator detonates the perforating gun.Through the design of wireless detonation systems,the study of carrier modulation methods for wireless transmission,and the study of modulation and demodulation methods for downhole signals,wireless detonation technology has been successfully applied in tubing conveying perforation.This technology has been successfully applied in multiple wells in Zhongyuan oilfield,which is of great significance in reducing the safety risks of perforation construction.

关 键 词：无线信号 油管输送射孔 安全 电感应起爆器 电磁感应 

分 类 号：P631.84[天文地球—地质矿产勘探]