Geochemical Services

Bolivia, Sub-Andean Thrust Belt

Download this page as PDF (312KB PDF)

Geology:

  • Highly faulted anticlines
  • Target: Gas in the Devonian Huamampampa Fm. at a depth of 3500 to 5000 m
  • Surface terrain has extremely rugged, steep rocky slopes with thick vegetation


 


Stratigraphic column

Enlarge

Geologic Regions of Bolivia

Enlarge

Gas-like hydrocarbon signature vs. geochemical background signature

Enlarge

Survey Summary

  • W/E transects across anticlines
  • 600 km2 coverage
  • 1000 m sample spacing

Survey Results

  • GORE® Survey accurately predicted outcome of five out of five post-survey wells
  • Client could have saved $60 million on dry hole expenses (each well cost ~$15 million)

GORE® Survey - 100% Prediction Rate

Well Predicted Result Actual Result Comment
X-2 Gas Well Gas Well Geochemical positive yields producing gas well
X-3 Dry Hole Dry Hole Formation penetrated below gas/water contact
X-4 Dry Hole Dry Hole Formation has
X-8 Dry Hole Dry Hole Geochemical negative yields dry hole
X-9 Dry Hole Dry Hole Geochemical negative yields dry hole