Research Progress of Coiled Tubing Inspection Technology
Yang Xu;Liu Shuhai;Li Feng;Li Zhiyong;Zhang Shimin;Wang Wenming;College of Mechanical,Storage and Transportation Engineering,China University of Petroleum;China Petroleum Technology and Development Corporation;Downhole Operation Company,Bohai Drilling Engineering Co. ,Ltd.;
To promote the development of coiled tubing inspection technology at home and shorten the gap between China and other countries with respect to the technology,the progress of domestic and foreign research on the technology was reviewed. The inspection equipments in service were introduced,including the CT DOG inspection device and Argus ultrasonic testing( UT) technology designed and developed by NOV CTES,the CT Scope inspection device developed by NOV Tuboscope,the automatic coiled tubing inspection system developed by ROSEN and the CoilScan real-time coiled tubing inspection system recently offered by Schlumberger. Finally,it is pointed out that the coiled tubing inspection system is developing toward the intelligence of defect identification and the comprehensiveness of inspection result.