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Sensitive Clays
Formation Damage
Rock-log Calibration
Low-resistivity Pay
Resource Plays
Tight Gas
Fractures
Wettability
Formation Damage
Rock-log Calibration
Low-resistivity Pay
Resource Plays
Tight Gas
Fractures
Wettability
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Reservoir Rock Analysis
Optical & Scanning Electron Microscopy
Chlorite Clay
Gels in contact with Hydrochloric acid; causing formation damage.
Microporosity decreases resistivity on logs.
Slide Show
Rock sample from the U.S. Geologic Survey, Core Research Center, Denver, CO.
Enlargement of boxed area at left.
Sensitive Clays | Conductive Minerals | Microporosity | Fracture Evidence | Reservoir Rock | Dual Porosity | Other