Eliminated rock type uncertainty
The EcoFlex service was used to test cuttings samples every 10 m in nonreservoir intervals and every 3 m in reservoir intervals. HRDM magnified cuttings up to 200 times, and XRD quantified the mineralogical content of the formation.
Lundin considered this data crucial for accurately identifying formation and mineralogical changes and reviewed it in near-real time for confirmation and guidance. Samples at particular depths were also prioritized to help Lundin identify changes in lithology and to conduct quick analysis of core chips that surfaced immediately following a core run. This information complemented downhole petrophysical measurements and improved Lundin’s ability to identify hydrocarbon-bearing sands.
Using the data acquired by the EcoFlex service in this and the previous six wells, Lundin is building a database of mineralogy and rock type to improve well correlation, understanding of the depositional environment, and completion design for the entire field.