Digital ArcGIS product with detailed database of measured properties and attributes.
Characterize primary, targeted marine and lacustrine shales at a reservoir scale, focusing on gas producing marine basins and oil producing lacustrine basins that had been high-graded during Phase 1:
Enhance the geologic understanding of the most promising marine and lacustrine shales from four primary basins/regions (Sichuan (key marine gas-producing basin), Yangtze Platform outside Sichuan (area of interest and bidding blocks), Ordos (key lacustrine oil and marine-transitional gas-producing basin), and Bohai Bay (key lacustrine oil-producing basin);
Based on the general findings from a limited number of measurements in Phase 1, the marine shales are relatively brittle compared to the lacustrine shales that were evaluated. We still do not have definitive insights regarding differences in specific reservoir properties, e.g. porosity and permeability, and gas content. Similarly, the potential for brittle response to tectonic or engineering events (colloquially referred to as “fracability”) between dissimilar marine shales, and especially for diverse lacustrine setting shales, remains uncertain. To date (Phase 1), our sense of differences in gas content, porosity and permeability between various shales is only based on limited isotherm and tight rock analyses (a limited number of acceptable samples [fewer than 10] were available in Phase 1).