现代信息科技2026，Vol.10Issue(11)：41-47,7.DOI:10.19850/j.cnki.2096-4706.2026.11.009
基于超声多普勒的钻井井筒气侵监测实验研究
Experimental Study on Drilling Wellbore Gas Invasion Monitoring Based on Ultrasound Doppler
摘要
Abstract
During oil drilling,high-pressure gas zones easily lead to gas invasion,which can cause severe accidents such as blowouts.Early detection of gas invasion is crucial for well control safety.This paper proposes a method for monitoring gas invasion at the riser wellbore using continuous ultrasonic Doppler,which features short response time and low monitoring cost.A simulated experimental platform for wellbore gas invasion monitoring is designed accordingly,and experimental studies on the propagation characteristics of continuous ultrasonic Doppler signals in gas-water and gas-drilling fluid two-phase flows are conducted.By varying pipe diameter,gas flow rate,liquid medium,and monitoring position,time-domain and frequency-domain analyses are performed on the acquired ultrasonic Doppler frequency shift signals.The results show that based on the variation law of ultrasonic Doppler signals,the gas flow rate in the pipeline and the corresponding flow pattern can be measured;real-time monitoring of gas invasion is achieved by comparing with the threshold for gas invasion detection,providing effective technical support for the early detection of wellbore gas invasion.关键词
石油钻井/气侵早期监测/超声多普勒/多普勒频移/气泡流型/信号处理Key words
petroleum drilling/early gas invasion monitoring/ultrasonic doppler/doppler frequency shift/bubble flow pattern/signal processing分类
信息技术与安全科学引用本文复制引用
沈国浪,桂园磊,郭庆丰,王兴国,刘青,蔡骁..基于超声多普勒的钻井井筒气侵监测实验研究[J].现代信息科技,2026,10(11):41-47,7.基金项目
国家自然科学基金(52265020) （52265020）
中国石油天然气集团有限公司关键核心技术重大科技攻关项目"70MPa智能控压钻井成套装备"(2024ZG35) （2024ZG35）
横向项目"井筒气侵超声检测系统加工定作合同"(760/01447) （760/01447）
江西省教育厅青年基金项目(GJJ2400904) （GJJ2400904）
