Wireline repeat formation tester (RFT) is mainly used for reservoir pressure measuring and reservoir fluids sampling.
2
每种测试重复8次，通过MTS传感器记录外固定针各部位在不同轴向压力下所需扭矩、时间和位移。
Each testing were repeated 8 times, and the precise data (torque, time and displacement) of different group and different part were noted on the MTS sensor respectively.
3
利用可重复执行的交互式MATLAB软件，给出了鲁棒pid压力控制器的设计方法。
Gives the way of designing robust PID pressure controller with MATLAB software.
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