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岩芯钻探过程中,钻孔延伸的顶角、方位角和孔底的泥浆压力是井眼的重要参数,而现有的测斜仪无论是在使用环境或使用精度方面均达不到深孔取芯钻探的使用要求.基于此,本文设计了一种基于光纤陀螺和加速度计的测斜仪,仪器应用于绳索取芯钻进,在仪器加工完成后进行了大量的室内及现场试验,试验结果表明仪器满足实际深孔取芯钻探工程的使用要求.
In the process of core drilling, the top angle, the azimuth and the mud pressure at the bottom of the borehole extension are important parameters of the wellbore. However, the existing inclinometer does not reach the deep hole both in the use environment and the use precision Coring drilling requirements.Therefore, this paper designed a inclinometer based on fiber optic gyro and accelerometer, the instrument used in rope coring drilling, after the completion of the instrument was a large number of laboratory and field experiments, the test The results show that the instrument meets the practical requirements for deep hole coring drilling.