Gas invasion early monitoring device and method in drilling process
A monitoring device and gas intrusion technology, applied in the field of oil drilling, can solve the problems of alarm delay, increased difficulty in kick identification, blowout, etc., and achieve the effect of sensitive response
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[0018] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the early monitoring device for gas invasion during the drilling process includes: downhole monitoring device and uphole monitoring device; the downhole monitoring device performs real-time measurement of the acoustic attenuation data, temperature data and pressure data of the wellbore annulus fluid, modulus conversion, and then sends To the on-well monitoring device, the on-well monitoring device analyzes and processes the monitoring data for early warning and alarm.
[0019] Downhole monitoring device, including: downhole measurement short section 2, rectangular tube 3, ultrasonic measurement module 43, temperature measurement module 45, pressure measurement module 47, power supply lithium battery 62, data acquisition and processing module 63, data upload module 64 and mud pulse Generator 7;
[0020] The downhole measuring nipple 2 is a round steel pipe with internal thread on the upper part and outer thread on...
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