摘要
穿越铺管技术(HDD)因具有埋深大、路由呈曲线状的特点,被广泛应用于地下油气管道的铺设。HDD对钻进轨迹的控制主要依靠随钻测量技术(MWD),受电磁干扰影响,管道工程竣工图与实际位置存在较大误差,而传统的地下管线探测技术受管道材料物性的约束,无法准确探测该类管道。自主研发的惯性陀螺定位系统依靠航向和姿态传感器在管道内的运动,可以精准测算出管道的三维坐标。为验证惯性陀螺定位技术的探测效果,在点探机负压成孔后插入PVC管,利用超声成像仪实现可视化验管。二个深部油气管线精确探测实例表明,惯性陀螺定位系统与可视化验管工艺在油气管道铺设工程及管线检测效果显著,具有广阔的应用前景。
The horizontal directional drilling（HDD） pipe laying technique has features of deep buried depth and curve-shaped route,widely used in underground oil and gas pipelines laying.The HDD controlling on drilling trace is mainly relying on measurement while drilling technique（MWD）.Since impact from electromagnetic interference,the pipeline project completion plan has rather large error in comparison with actual pipeline position.While traditional underground pipeline detection technology is restricted by pipe material physical properties,unable to detect some types of pipeline accurately.A self-developed inertial gyroscope positioning system relying on the heading and attitude transducer movement in pipeline can detect 3D coordinates of those kind pipelines accurately.To verify inertial gyroscope positioning technique effect,after the point finder negative pressure hole-forming to insert a PVC pipe,using ultrasonic imaging device can realize visual pipe inspection.The precise detection of two deep oil and gas pipelines have shown that the distinct effects of inertial gyroscope positioning system and visual pipe inspection process have illustrated the wide application prospect in oil and gas pipelines laying project and pipeline inspection.
出处
《中国煤炭地质》
2017年第7期75-79,共5页
Coal Geology of China
关键词
穿越铺管技术
惯性陀螺仪定位
可视化验管工艺
真空负压点探机
HDD pipe laying technique
inertial gyroscope positioning
visual pipe inspection process
vacuum negative pressure point finder
