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Home > Products > Geochemical Services > Petroleum Exploration > Case Histories > Papua New Guinea, Mogulu Structure

Papua New Guinea, Mogulu Structure

GORE™ Survey Area

Geology:

SW edge of Papuan Foldbelt
Target: Cretaceous Toro Formation, early Mesozoic Sandstone ~3000m depth
Source is thought to be Jurassic
Area overlain by ~1200 m volcanics and a limestone aquifer ~ 1000-1500 m thick (Oligocene/Miocene Darai Limestone)
Target surface feature is a ~900 km2 magnetic anomaly
Poor quality seismic data due to the volcanics
Area is remote, dense jungle

Stratigraphic column Supplied by Oil Search Ltd.

Map showing model well sites in relation to the GORE™ Survey area, Toro structure map with GORE™ Survey sample locations indicated

Average Signature, Hides-01 Well, Average Signature, Nomad-01 Well

Regional Geologic Setting (Image supplied by Oil Search Ltd.)

GORE™ Survey interpretation over Toro Structure map, with high probability areas for gas showing in red

Survey Summary

~900 km2 area
~200 grid samples
Irregular grid pattern with samples spaced 1-2 km apart
Six model well sites
The survey area was in rugged terrain and thick jungle with limited access

Survey Results

Survey was able to detect hydrocarbon microseepage through thick aquifers and thick volcanic sequences
Mapped out fault blocks, showing that some fault blocks have more potential than others

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