摘要
目前油管输送射孔的起爆方式主要采用投棒撞击或者井口加压这2种方式,但因起爆装置、延时装置和安全传爆装置均为一次性消耗品,且配套使用的火工品数量多,导致油管输送射孔起爆的成本比电缆射孔高很多。针对这一问题,开展了油管输送射孔多级可控声波起爆技术研究。利用地面系统发出特定的声波编码信号,信号沿油管向井下传输,井下装置接收信号后,控制雷管及射孔枪起爆。应用该技术不仅可以降低油管输送射孔起爆成本,同时也为现场施工提供更加安全、可靠的技术保障。通过不同深度声波传输试验和编码控制传输试验,声波信号接收比较稳定,初步验证了多级可控声波起爆技术的可行性。
The detonation method of tubing conveyed perforation(TCP)mainly adopts two methods,namely rod impact or wellhead pressure.However,due to the fact that the detonation device,delay device and safety booster device are all disposable consumables,and the number of auxiliary explosive products is large.The detonation cost of pipeline transmission perforation increases more than that of cable perforation.To solve this problem,the TCP multistage controlled acoustic detonation technology is studied.A specific form of acoustic code signal is sent by the ground system.The acoustic code signal is transmitted to downhole along the tubing.After receiving the signal,the downhole device can control the detonator and perforating gun to burst.The application of this technology can not only reduce the cost of perforation initiation,but also provide more safe and reliable technical support for site construction.Through different depth acoustic transmission test and coding control transmission test,acoustic signal receiving is relatively stable,and the feasibility of multistage controlled acoustic detonation technology is preliminarily verified.
作者
于秋来
张伟民
蔡山
陈瑞
李昌松
YU Qiulai;ZHANG Weimin;CAI Shan;CHEN Rui;LI Changsong(Well testing & Perforating Branch, Daqing Oilfield Limited Company, Daqing, Heilongjiang 163412, China)
出处
《测井技术》
CAS
2021年第2期218-221,共4页
Well Logging Technology
基金
大庆油田有限责任公司科技攻关项目“TCP多级可控声波起爆技术研究”(dqp-2018-cs-ky-002)。
关键词
射孔技术
油管输送
多级起爆
声波信号
起爆装置
perforation technology
tubing delivery
multistage detonation
acoustic signal
detonation device
