发明名称 METHOD AND APPARATUS FOR INVESTIGATING A BOREHOLE WITH A CALIPER
摘要 Embodiments of the present invention relate to a caliper and method for mapping the dimensions and topography of a formation such as the sidewall of a borehole. Examples of formations in which embodiments of the invention can be used include, but are not limited to, an oil, gas, pile borehole or barrette that has been drilled or excavated into the earth.
申请公布号 EP1960634(A2) 申请公布日期 2008.08.27
申请号 EP20060847807 申请日期 2006.12.18
申请人 LOADTEST, INC. 发明人 HAYES, JOHN, A.
分类号 E21B47/01;E21B47/08 主分类号 E21B47/01
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