Modeling and Simulation Forum #4 Registration

Utah FORGE Modeling & Simulation Forum #4


"Coupled Simulations of Well and Reservoir Thermal Hydraulics"

Presented by: Robert Podgorney  and David Andrs (INL), Pranay Asai (UofU) and Aleta Finnila (Golder)

July 15 at 11 am MDT

The forum will feature a discussion of the development of coupled well hydraulics and reservoir hydraulics simulations. These simulations are being prepared in preparation for conducting long-term operational simulations of the FORGE reservoir, where multistage stimulation and limited entry are anticipated in the injection well. The presentation will provide a summary of the well flow simulator, numerical coupling between the well and the reservoir, and provide a few preliminary examples.

This is the fourth 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 will be recorded and will be available for viewing later.

Please note registration is required for the forum and seating is limited.

Did you know… that there are animals that use natural thermal heat in the form of hot springs and warm ground?

Geothermal energy has great benefits for people, but did you know that there are animals that use natural thermal heat in the form of hot springs and warm ground?

Macaques, better known as snow monkeys, are found throughout the main Japanese Island of Honshu, and they are famous for soaking in local volcanic hot springs. Their bathing habit is a recent phenomenon that was first observed at Korakukan Onsen, a local guest house, in 1962. Snow monkeys seem to have adapted this habit from observing humans in the hot springs. Since then, this behavior has been passed onto rest of their troops, and it has now become a part of their daily routine. Snow monkeys bathe in hot springs to preserve body heat to survive the cold and rigid winters, but recent studies have proven they also do this as a form of stress relief.

 

References:

Matsuzawa, T., 2918, Hot-spring bathing wild monkeys in Shiga-Heights: origin and propagation of a cultural behavior: Primates, v. 59, p. 209-213.

Takeshita, R.S.C., Bercovitch, F.B., Kinoshita, K. and Huffman, M.A., 2018, Beneficial effect of hot spring bathing on stress levels in Japanese macaques: Primates, v. 59, p. 215-225.

https://www.upi.com/Science_News/2018/04/03/Japans-snow-monkeys-use-hot-baths-to-conserve-body-heat-relieve-stress/6021522777656/

http://animalia.bio/japanese-macaque

https://www.snowmonkeyresorts.com/smr/snowmonkeypark/the-snow-monkeys-faq/

Partner Spotlight – GRG

Geothermal Resource Group (GRG) is a geothermal resource and engineering consulting company that has provided consulting engineering and on-site management services in over 16 countries and at over 95 geothermal development projects worldwide. They have been a partner in the FORGE Utah project since the beginning, providing technical and design advice, and planning and supervision in the drilling of all deep wells, including 58-32, 68-32 and 78-32. They are currently working on the design of the first deep deviated well which will commence later this year.

GRG plays a critical role in the management, organization and running of a range of pre- and post-drilling and stimulation activities to ensure that project managers, contractors, and researchers are well informed of scheduling and onsite activities. A key goal is to ensure that everyone involved is fully briefed on the operations so that all tasks are executed to the highest professional and technical standard an in a timely manner that keep the project on schedule and within budget.

In Phase 3, GRG is working within the drilling team to specify the materials needed for the planned deep, highly deviated, injection well that represents one of the pillars of the Utah FORGE research facility. This involves many considerations that are not typical to conventional geothermal wells. In addition, specifications are being prepared for the drilling of additional seismic monitoring holes, as are plans for supervision of field activities later this year.

GRG’s involvement with Utah FORGE is led by Principal Drilling Engineer Bill Rickard, Senior Engineer Ernesto Rivas, and Geologist Mary Mann. GRG brings with them many decades of cutting edge expertise hard granite drilling technology, and they were instrumental in the drilling and completion of deep wells at Newberry and Raft River. GRG is excited to be a part of the Utah FORGE project and looks forward to ensuring continued drilling successes.

ARMA June 2020 ROBE Talk

 

Pengju Xing (EGI) gave a talk 'Using Flowback and Temperature for Closure Stress Diagnosis' for the American Rock Mechanics Association's (ARMA)  800-member Hydraulic Fracturing Technical community on June 10, 2020. This was part of the ROBE talk series.

Watch it HERE

Modeling and Simulation Forum #3

Utah FORGE Modeling & Simulation Forum #3

"Injection Testing and Stress Measurements" presented by Pengju Xing and John McLennan (University of Utah)

June 17 at 11 am MDT

"The forum will address injection-based stress assessments were carried out in the openhole toe and in a cased/perforated section in a pilot vertical well in 2017 and in 2019. The basic measurement program is described, and the familiar complexities of interpretation discussed. Additional discussion will briefly describe flowback and temperature as diagnostics for in situ stresses.

Future modeling activities will include history matching legacy injection data using Schlumberger’s Kinetix and Itasca’s XSite. With calibration from this history match, predictive simulations will be carried out to help to comprehend fracture morphology during future injections at the toe of the first FORGE extended reach well.

This is the third 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 will be recorded and will be available for viewing later.

Please note registration is required for the forum and seating is limited.

Did you know… that the direct use of geothermal energy can be used to raise alligators? 

Did you know that the direct use of geothermal energy can be used to raise alligators?

The direct use of geothermal energy can apply to almost any activity that requires heating (and cooling) for industrial, residential and agricultural purposes. The heat is transferred by hot ground water in the temperature range of 20-120°C (70-250°F) which is produced from shallow wells and then distributed through surface pipework. One very popular direct use application of geothermal energy is for bathing in natural hot springs. Spas all over the world use naturally produced hot water for recreational and therapeutic purposes. In Utah, the Crystal Hot Springs offers warm and mineral-rich baths which attracts numerous visitors throughout the year.

Another direct use application is space heating that may serve a single, stand-alone structure, or more commonly multiple buildings, which are linked by a pipeline that supplies hot water. For regions that are subject to cold winters, this is a cost effective means of heating without contributing to atmospheric pollution. District heating has been in use since the late 1890s when the city of Boise, Idaho started using geothermal energy to heat buildings. District heating is also popular in China, Iceland, France, Germany, Hungary and New Zealand. In the state of Utah, the prison at the Point of the Mountain uses district heating for 330,000 sq. ft. of prison space, saving thousands of dollars over conventional heating systems.

This type of geothermal energy is even used to heat greenhouses to grow plants. The Milgro complex in Newcastle, Utah is one of the largest producers of poinsettias and chrysanthemums in the USA; it uses geothermally heated greenhouses to grow its flowers. This type of energy is also used to heat ponds for aquaculture and fish farming. The warm springs near Grantsville, Utah are filled with warm, mineral-rich water that supports a variety of fish and are also an attraction for scuba-diving activities. Fish breeders in Idaho farm a range of species, including ones requiring geothermally heated ponds, which famously once included alligators!

Read more:

https://hagermanvalleychamber.com/membership_directory/fish-breeders-of-idaho/

https://oregontechsfstatic.azureedge.net/sitefinity-production/docs/default-source/geoheat-center-documents/quarterly-bulletin/vol-25/art7.pdf?sfvrsn=98268d60_4

https://www.nrel.gov/docs/fy04osti/36316.pdf

Modeling and Simulation Forum #2 RECORDING

Utah FORGE Modeling and Simulation Forum #2

"Hydraulic Fracture Stimulation Patterns in the FORGE Reservoir Using Multiple Stochastic DFN Realizations and Variable Stress Conditions" presented by Aleta Finnila (Golder)

May 20 at 11 am MDT

The presentation includes a summary of the current FORGE reference DFN and the sensitivity work performed to find average and end-member DFN realizations for hydraulic stimulation of the new well 16A(78)-32. There is a discussion of how the DFN can be used by other modelers and what type of filters should be used on the DFN in order to extract the best set of fractures for a particular simulation goal.The presentation includes a summary of the current FORGE reference DFN and the sensitivity work performed to find average and end-member DFN realizations for hydraulic stimulation of the new well 16A(78)-32. There is a discussion of how the DFN can be used by other modelers and what type of filters should be used on the DFN in order to extract the best set of fractures for a particular simulation goal.

This is the second 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.

UPDATE: Audio recording has been fixed. Enjoy the full version.

The pdf of the presentation is available 20200516_MSForum-post.

References mentioned:

  • For details on the FORGE DFN development:

Finnila, A., Forbes, B., and Podgorney, R.: Building and Utilizing a Discrete Fracture Network Model of the FORGE Utah Site, Proceedings, 44th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, CA (2019).

  • Details on sensitivity work for stochastic realization and stress state:

Finnila, A., and R.K. Podgorney. 2020. Exploring hydraulic fracture stimulation patterns in the FORGE reservoir using multiple stochastic DFN realizations and variable stress conditions. In Proceedings, 45th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California.

  • Mentioned, but it isn't central in this presentation:

Xing, P., Duane, W, Rickard, B., Barker, B., Finnila, A., Ghassemi, A., Pankow, K., Podgorney, R., Moore, J., Goncharov, A., McLennan, J.: Interpretation of In-Situ Injection Measurements at the FORGE Site, Proceedings, 45th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, CA (2020).

  • Other supporting information for the Forum, details on the reference earth and native state models can be found on the Earth Model  and  Numerical Modeling  pages.

To view the 1st forum as well as the schedule of upcoming webinars visit the Modeling and Simulation Forum page.

To receive updates and special announcements please SUBSCRIBE

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