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PESA WA November 21st Evening Talk: Top seal and compartmentalisation in the Kingia Play, implications for porosity preserving plays.
Thursday, 21 November @ 6:00 pm - 8:00 pm (Australia/Perth time)
Free – $50.00
Guest Speaker(s): Alex Fuerst
Alex Fuerst is a dynamic geoscientist with a diverse background in geology, geophysics, geochemistry, and petrophysics. With 15 years of geoscience experience, Alex has established a reputation for his well-rounded exploration skillset and advanced seismic interpretation skills, effectively identifying new, technically robust prospectivity in heavily-explored acreage, and generating multiple commercial stratigraphic prospects.
Throughout his career, Alex has applied his cross-discipline approach to prospect identification and maturation, applying his solid understanding of different techniques to reduce risk and uncertainty. In his current role Alex is applying is diverse experience in assessing both conventional and unconventional resources and prospectivity. Recently, as Senior Geologist at Chemostrat Australia, Alex led the Australian technical team, overseeing the timely execution of projects while upholding strict regulatory standards and maintaining high standards of data quality, sample preparation and technical interpretation. In his previous role as Exploration Geologist at Woodside Energy, Alex was instrumental in identifying and converting dozens of new leads into prospects, notably contributing to the successful drilling of the Ferrand-1 Exploration well.
Alex has a Masters in Petroleum Geoscience and a Bachelor of Geology from the Victoria University of Wellington.
PESA WA invites you to a technical Evening Event Thursday 21st November.
Top Seal and Compartmentalisation in the Kingia Play, implications for porosity preserving Plays.
Presented by Alex Fuerst (Molyneux Advisors)
In the Kingia play of the North Perth Basin, significant compartmentalisation is observed across the basin and within individual fields, despite the sand-on-sand juxtaposition. This compartmentalisation manifests in both pressure and phase (gas/water) variations. Cemented fractures are observed near fault zones in Perth Basin wells. This results in decreased permeability near faults, as evidenced by local wells in the Perth Basin.
SEM images show fractures within grains of grain coated sands are sufficient to serve as nucleation sites for quartz cementation. In contrast, within the Irwin River Coal Measures (IRCM), the grain surfaces alone provide sufficient sites for cementation. The IRCM sands exhibit permeabilities that are characteristic of seals, with samples displaying quartz cementation, kaolin cementation, or a combination of both.
The implications for play risk / play maps are significant. Shallower Kingia penetrations face an unproven top seal due to the less cemented IRCM, potentially explaining the multiple shallower exploration failures. At greater depths, the presence of more complex faulting may enhance fault seal integrity and lead to more intricate trap configurations. However, this also likely increases development complexity due to reservoir compartmentalization. The observed improvement in IRCM sealing capacity with depth suggests broader implications for exploring deeper grain-coated plays, allowing for a wider range of facies to be considered as potential seals.
Timings for the event:
Date: Thursday 21st November, 2024
Venue: The Shoe Bar, Yaga Square, Perth
Time: 6pm – 8pm (Perth time)
PESA Members: $25.00 (PESA Members must Log on to the PESA website to purchase)
Non-members: $50.00
PESA Students Members: Free (registration is essential)
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