caliper log


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caliper log

[′kal·ə·pər ‚läg]
(mining engineering)
A graphic record showing the diameter of a drilled hole at each depth; measurements are obtained by drawing a caliper upward through the hole and recording the diameter on quadrile paper.
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The company wells were drilled to hydrocarbon industry standards where lithology and down-hole logs, including resistivity, sonic, neutron density and caliper logs were recorded for all the formations drilled from surface casing to just below the Potash beds.
Western Potash Identifies Hydrocarbon Potential at Milestone, Secures Private Land Rights

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