Method of and arrangement for determining geohydraulic permeabil

Method of assaying compressive strength of rock

Method of automatically determining drilling fluid lag time whil

Method of borehole logging using passive Josephson current detec

Method of correlating a core sample with its original position i

Method of defining homogeneous rock formation zones along a bore

Method of detecting a fluid influx which could lead to a blow-ou

Method of detecting fluid influxes

Method of determining characteristics of a fluid producing under

Method of determining characteristics of a rotary drag-type dril

Method of determining drill bit wear

Method of determining drillstring bottom hole assembly vibration

Method of determining drillstring bottom hole assembly vibration

Method of determining gas-oil ratios from producing oil wells

Method of determining inflow rates from underbalanced wells

Method of determining optimum cost-effective free flowing or gas

Method of determining the concentration of solid lubricants in d

Method of determining the depth of occurrence of a chemically ag

Method of determining the drilling conditions associated with th

Method of determining the hydrocarbon flow rate in a...