Study on Virtual Measurement Technology for Near-bit Dynamic Forces of Bottom-Hole Assembly
A virtual measurement system for investigating the dynamic behaviors of bottom-hole assembly (BHA) in measurement while drilling is designed and set up. Based on the working principle of system, a straight beam strain gauge sensor device and a virtual instrument-based dynamic force wireless measurement system are developed. The axial force, radial force and torque exerted on rotating simulated drillstring are detected multithreadediy in the laboratory. Then the lateral force is calculated. The dynamic force parameters of BHA composed of simulated drillstrings are measured under different weight on bit loads and deviation angles. The experimental results show that lateral force can facilitate the hole deviation control of BHA due to more sensitivity to weight on bit, deviation angle and BHA combination mode. The proposed measurement technology provides the experimental basis for the theoretical analyses of the hole deviation control mechanism of BHA.
straight beam strain sensor bottom-hole assembly dynamic force virtual instrument
Li Cheng Ding Tianhuai Wang Peng Chen Ken
Dept.of Precision Instruments and Mechanology Tsinghua University Beijing,China
国际会议
长沙
英文
364-367
2009-04-11（万方平台首次上网日期，不代表论文的发表时间）