Modeling and Simulation Forum #9 Recording

Utah FORGE Modeling & Simulation Forum #9


"Microseismic monitoring and risk mitigation plan for the first Utah FORGE stimulations at the toe of 16A-32"

Presented by: Ben Dyer, Falko Bethmann (Geo-Energie Suisse)

August 18, 2021 at 11 am MDT

The injection well 16A-32, drilled at the Utah FORGE site towards the end of 2020 has a lateral section of ~4000ft that dips at around 30° and terminates at 8500ft at a temperature of ~240°C. Planned for later this year, a small number of stimulation tests at the toe of 16A-32 and will be monitored in real time by a deep microseismic network and large surface array. This forum will present the design of the deep monitoring network, the anticipated network performance and mitigation of seismic risks.

The deep network will consist of three established high temperature geophone strings and realtime processing software to derive event hypocentres and magnitude estimates. This primary network will be supplemented by behind casing and wireline DAS in the same monitoring hole together with a three level, 3 component fibre optic sensor string to evaluate the relative seismic performance of these less established systems. The aim is to process all of the data from the deep 3C geophone and fibre optic 3C sensor strings together with a subset of the DAS data in real time in order to monitor the data quality and synchronisation of these separate sensor systems, which will be a challenge due to large data volumes, different file formats and remote acquisition locations. For mitigation of seismic risk, processed data will be fed into a 'classical' traffic light system and an advanced traffic light scheme that incorporates lessons that have been learned from geothermal stimulations in Basel, Pohang and most recently from the Bedretto underground lab.

This is the 9th forum of the series and is intended to have an open format to present modeling and simulation, both completed and planned, as well as activities being conducted by the Utah FORGE Team.

This webinar has been recorded and is now available for viewing.

To follow along with the slides, the pdf of the presentation is available for download HERE

For previous forums and for the upcoming schedule check out the Modeling and Simulation FORUM page

Modeling and Simulation Forum #8 recording

Utah FORGE Modeling & Simulation Forum #8


"Utah FORGE DFN model file availability on GDR"

Presented by: Aleta Finnila (Golder)

July 21, 2021 at 11 am MDT

The initial 2019 Discrete Fracture Network (DFN) model developed for the Utah FORGE reservoir was based primarily on data from the vertical pilot well, 58-32, and outcrop data in the nearby mountain range. Updates to the DFN model have been made based on the incorporation of data from two newer wells in the reservoir, the highly deviated injection well, 16A(78)-32, and another deep vertical well, 56-32. This updated 2021 DFN model should be useful to modelers interested in having natural fracture sets for use in simulations such as well hydraulic stimulation, local stress evolution, flow pathway analysis, and thermal breakthrough in proposed injection and production well configurations. Various subsets of both the 2019 and 2021 DFN models are available on the public Geothermal Data Repository (GDR). This presentation highlights what Utah FORGE DFN files are available on the GDR and summarizes the main differences between the 2019 and 2021 models.

This is the 8th forum of the series and is intended to have an open format to present modeling and simulation, both completed and planned, as well as activities being conducted by the Utah FORGE Team.

This webinar has been recorded and is available for viewing.

To follow along with the slides, the pdf of the presentation is available for download HERE

For previous forums and for the upcoming schedule check out the Modeling and Simulation FORUM page

 

 

Modeling and Simulation Forum #1 RECORDING

The inaugural Modeling and Simulation Forum was held on April 15, 2020 and if you weren't able to participate you can check out the video recording of the webinar below.

Topics that were covered included an overview of the Utah FORGE project, a description of the numerical methods and codes that have used, a summary of modelling results dealing with discrete fracture network, the distribution of stress, and the planning of well trajectories.

Download the PDF of the slides:

20200415_MSForum-post

This will be a recurring event to keep the EGS community updated on our activities and, most importantly, to gain the community's feedback.

For more information about upcoming webinars visit the Modeling and Simulation Forum page

For news, special announcement about the Utah FORGE project activities please SUBSCRIBE