As the exploration of ultra-deep layers and development geothermal resources continue, obtaining more accurate downhole parameters becomes increasingly important. Flow measurement, in particular, is a complex parameter that presents significant challenges. In order to enhance accuracy turbine flow logging tool, this research focuses on optimizing metering structure through range methods. A calc...

Mountain geophysical prospecting operations play an important role in the entire petroleum exploration field. Geophysical drill-bit is main tool for mountain operations. Its hydraulic structure directly affects downhole flow field and then chip removal efficiency drilling of bit. At present, most scholars’ research focused on Poly Diamond Crystalline bit, roller etc., less, them study based cha...

This contribution introduces a computerized semi-automated procedure coupled with dedicated algorithm to improve shear wave velocity assessment and the on-site elastic damping ratio estimation of ground materials. The standard equipment downhole method is integrated horizontal geophone (guardian) placed on field surface. Mask tapering band multi-filter functions first arrival, recognizing isola...