PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It can readily be seen that the method o-f this invention is far superior to the prior art method often used wherein the mud resistivity is obtained at the Well site by measuring a sample of the mud at the surface and then making corrections for temperature effects since the mud resistivity is not a linear function of any one variable, such as temperature, depth or pressure.
http://www.w3.org/ns/prov#wasQuotedFrom
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