Pressure-while-drilling measuring device and measurement method thereof
A measuring instrument and formation pressure technology, applied in the pressure measuring instrument and its measurement field, can solve the problems of inability to monitor the formation pressure in real time while drilling, and the formation pressure data is not real-time, so as to avoid the difficulty of going down the well, easy to start and shut down, The effect of reducing the volume
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[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0016] Such as figure 1 As shown, the present invention includes an outer casing 1 of the device, and a central flow channel 2 is arranged in the outer casing 1 . The outer casing 1 is provided with a diverting and pressurizing mechanism 3 , an actuator 4 and an oil circuit reversing mechanism 5 in sequence. The actuator 4 is provided with a suction mechanism 6 .
[0017] Such as figure 2 As shown, the flow splitting pressurization mechanism 3 includes a splitter tube 31 arranged in the outer shell 1, a splitter channel 32 is arranged between the splitter tube 31 and the outer shell 1, and the inlet end of the splitter tube 31 is provided with a communication splitter channel 32 and a central flow channel. Channel 2 split inlet 33. A hollow splitter piston 34 is arranged in the splitter cylinder 31 , a spring 35 is arranged between the splitter p...
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