During the coring of loose and soft formation in the subsea and continental water region, there are many difficulties such as poor quality of core and low core recovery. The hydraulic pressure shear coring tool was designed to solve these problems. The paper introduced its design principles, configuration features and the laboratory test effect.
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翁炜,赵尔信.液压剪切式取样钻具的研究[J].钻探工程,2012,39(4):8-10.WENG Wei, ZHAO Er-xin. Research and Test of the Hydraulic Pressure Shear Coring Tool[J]. Drilling Engineering, 2012,39(4):8-10.