发明名称 UNDISTURBED CORE SAMPLER
摘要 A core sampler that complies with European Standard BS EN ISO 22457-1 and takes Class 1 samples, while being able to withstand forces associated with sonic drilling. The core sampler includes a smaller diameter, thin-walled sampler shoe portion that transitions to a larger diameter, thick-walled tube at a specific distance along the longitudinal axis of the core sampler. The smaller diameter shoe portion allows for an undisturbed sample, while the larger diameter tube imparts sufficient strength to the core sampler such that the core sampler can handle forces associated with sonic drilling techniques. Optionally, the larger diameter tube can provide the thickness needed for a liner.
申请公布号 WO2012142441(A3) 申请公布日期 2013.03.14
申请号 WO2012US33565 申请日期 2012.04.13
申请人 LONGYEAR TM, INC.;LANGAN, PATRICK, JOSEPH;GAUGH, ERIK 发明人 LANGAN, PATRICK, JOSEPH;GAUGH, ERIK
分类号 E21B49/06;E21B49/08 主分类号 E21B49/06
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