Modeling and Simulation Forum #10 Recording

Utah FORGE Modeling & Simulation Forum #10


"Utah FORGE site field update and well 16A(78)-32 stimulation modeling"

Presented by: Aleta Finnila(Golder), Branko Damjanac (Itasca), Pengju Xing (UofU)

September 15, 2021 at 11 am MDT

Join us to learn about current activities at the Utah FORGE site and progress of the first deep deviated well 16A(78)-32 stimulation modeling.

This is the 10th 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 #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

Partner Spotlight – UUSS

University of Utah Seismograph Stations - UUSS

Reducing the risk from earthquakes in Utah through research, education, and public service.

The University of Utah Seismograph Stations (UUSS) maintains and operates a combined urban and regional seismic network throughout the State of Utah and a regional seismic network in Yellowstone National Park. UUSS monitors seismicity in these regions by providing earthquake locations and magnitudes. The monitoring in Utah is part of a state-federal partnership with the U. S. Geological Survey Advanced National Seismic System. Monitoring in Yellowstone is done as part of the U. S. Geological Survey Yellowstone Volcano Observatory.

In addition to regional monitoring, UUSS is building, maintaining, and operating a seismic network local to Utah FORGE. The primary goal of this network is seismic hazard monitoring. The complete network will consist of six stations located on the surface in carefully designed vaults, six stations in shallow boreholes, one deeper borehole, and three accelerometers located close to structures. Data from these instruments are sent back to UUSS in real-time. Once all stations are installed, over 2 GB of data will be collected and processed each day.


This data feeds into an automatic processing system that detects and locates earthquakes. For larger earthquakes, maps of ground shaking are generated, and alarms are sent for rapid review to seismologists who are on call 24 hours a day. All earthquakes are reviewed by seismic analysts and posted to the web.

To complement the local network, UUSS has deployed dense arrays of temporary geophones at times of stimulation to help better constrain the background seismicity and seismic velocity structure. The data from these deployments contributes to special studies. In one study, UUSS mapped the shallow shear-wave velocity structure of Utah FORGE and the surrounding area, and in another study, new algorithms were developed for detecting very small magnitude events from the stimulation process.

 

Find out more about other Utah FORGE team and partners HERE

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 #7 Recording

Utah FORGE Modeling & Simulation Forum #7


"An Overview of Modeling and Simulation related to Utah FORGE Research Awards"

Presented by: Robert Podgorney (INL)

May 19 , 2021

This presentation discussed planned modeling activities from the teams recently announced as selected for award negotiations from the Utah FORGE Solicitation 2020-1.

This is the 7th 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

Partner Spotlight — Geo-Energie Suisse

Celebrating its 10th anniversary this year, Geo-Energie Suisse AG (GES) is a Swiss company focused on deep geothermal energy for electricity and heat production. The founding members include municipal utilities and regional energy supply companies from all over Switzerland. Geo-Energie Suisse employs ten people, and it is also supported by numerous external specialists.

The company aims to develop deep EGS projects in crystalline rocks through the use of multi-stage stimulation to increase the permeability of the rock while reducing the seismic risk. Haute-Sorne is the company’s most advanced project in Switzerland. Its setting shows many similarities with the Utah FORGE project, which makes the collaboration with the University of Utah-based team particularly exciting.

Geo-Energie Suisse core competencies reside in seismic risk assessments, seismic monitoring and real time seismic data processing and evaluation. At Utah FORGE, GES intends to test and validate new methods and downhole instruments and bring them to the next level of innovation. GES is also assisting in the design of the seismic monitoring program, as well as conducting numerical analyses of the seismic data.

The figure shows the results of resolution and sensitivity numerical modelling performed by GES to assess the optimal configuration of monitoring boreholes and sensors at Utah FORGE. Section-view (left) and map-view (right) of the monitoring boreholes and the first of two deep, highly deviated wells (16A(78)-32) that will be used to create the reservoir.

At the end of 2020, Geo-Energie Suisse succeeded in obtaining technical proof of its multi-stage stimulation concept. The successful demonstration took place in the Bedretto Underground laboratory for Geosciences and Geoenergy of the ETH Zurich in the Swiss Alps. Innovative sensors, measurement and control techniques were tested for the first time and enabled the observation and control of the hydraulic stimulations. These techniques increase safety when creating geothermal reservoirs in crystalline rock. In addition, a seismicity forecasting method, developed by ETH Zurich, was also successfully implemented in the demonstration project. GES will now validate the findings gained in the Bedretto Laboratory at the Utah FORGE test site in the high-temperature range.

This figure shows the spatial distribution of the microseismicity that occurred in 10 temporally staggered intervals and spatially isolated stimulation zones leading to permanent microcracks in the granite rock.

The stimulations were carried out by Geo-Energie Suisse AG in the Bedretto Laboratory of ETH Zurich in November and December 2020. © Geo-Energie Suisse. More pictures and videos here

The Swiss Federal Office of Energy supports the deep geothermal project in Haute-Sorne and especially the innovations that will substantially reduce the risk of induced seismicity for deep EGS projects. The Swiss, Utah FORGE and the international geothermal industry will be well served by such improvements in safety and the success of future EGS projects.

www.geo-energie.ch/ (French/German)

Drilling of Well 56-32

Seismic Monitoring Well 56-32

This well is the fourth and deepest of a cluster of vertical seismic monitoring wells that are located near the toe of 16A(78)-32. The well was drilled vertically to a total depth of approximately 9,000 feet about 1300 feet north of 58-32.

Well 56-32 will be fully cased (5 ½ inch) and used for deployment of seismic sensors during stimulation experiments. A Silixa DAS fiber optic cable 7500 feet long will be cemented along the outside the casing. During the drilling of 56-32, MSE (Mechanical Specific Energy) calculations and PDC bits will be used to optimize penetration rates as was successfully utilized in the drilling of 16A(78)-32. Below 7500 feet depth, mud hammer bits will be trialed and evaluated for drilling performance.

Update February 8:

Well spudded at 4am.

Update February 9:

Drilled to 380 ft depth.

Update February 10:

Drilled to 3,300 ft depth. The basement contact was crossed at 3,100 ft.

Update February 17:

Drilled to 5,840 ft depth.

Update February 21:

Well reached TD of 9,145 ft depth.

Worth noting: 

This well, as well as the deep, highly deviated 16A(78)-32, was drilled with specially modified polycrystalline diamond composite or PDC bits. These bits proved superior to the tricone bits used in drilling the previous wells.

According to Reed Hycalog, the bit manufacturer, drilling well 56-32 set a record for a bit run of 1208 ft in 53 hours, drilling on average 25 ft/hr in hot, crystalline granite.

Utah FORGE announces 17 project selectees for negotiations for solicitation 2020-1

Utah FORGE Chooses 17 Selectees to Begin Negotiations:

  • University of Utah to award $46 M for research in Enhanced Geothermal System development
  • 17 selectees chosen to enter negotiations in 5 topic areas

SALT LAKE CITY, UT., Feb. 24, 2021 – The Utah Frontier Observatory for Research in Geothermal Energy (FORGE) at the University of Utah is pleased to announce it has chosen 17 project selectee applications for negotiations for the FORGE Solicitation 2020-1. The selectees could receive a combined total of up to $46 M over the next 3 years.

The topic areas and the selectees include:

Topic # and TitleFunding LevelAwardsAwardee
Topic 1: Devices suitable for sectional (zonal) isolation along both cased and open-hole wellbores under geothermal conditions$12 Million1 to 3Welltec; PetroQuip Energy Services; Colorado School of Mines
Topic 2: Estimation of stress parameters$3 Million1 to 3Battelle Memorial Institute
Lawrence Livermore National Laboratory
University of Oklahoma
Topic 3: Field-scale characterization of reservoir stimulation and evolution over time, including thermal, hydrological, mechanical, and chemical (THMC) effects$8 Million1 to 4Clemson University
Stanford University
Lawrence Berkeley National Laboratory
Rice University
Topic 4: Stimulation and configuration of the well(s) at Utah FORGE$12 Million1 to 3Fervo Energy Company
University of Texas at Austin
Topic 5: Integrated Laboratory and Modeling studies of the interactions among THMC processes$11 Million1 to 6Pennsylvania State University
Lawrence Livermore National Laboratory
US Geological Survey
University of Oklahoma
Purdue University

“There is enormous untapped potential for enhanced geothermal systems (EGS) to provide clean and reliable electricity generation throughout the United States,” said Dr. Kathleen Hogan, Assistant Deputy Under Secretary for Science. “These investments in EGS research support President Biden’s mission to take on the climate crisis by pushing the frontiers of science and engineering and creating jobs in cutting-edge clean energy fields.”

Utah FORGE is a dedicated underground field laboratory sponsored by the U. S. Department of Energy’s Geothermal Technologies Office. It is working on developing, testing, and accelerating breakthroughs in EGS. Solicitation 2020-1 was the first formal call for research proposals on EGS technologies from the Utah FORGE Program. More information about Solicitation 2020-1 is available HERE.

“Utah FORGE looks forward to collaborating closely with the scientists and engineers of the project teams on technologies that will promote commercialization of this inexhaustible and non-polluting energy source,” said Joseph Moore, Ph.D. and Principal Investigator of the Project. “We were impressed with the caliber of all of the applicants who submitted proposals and anticipate additional solicitations in the future.”

To download the official press release follow this LINK

 

Utah FORGE Successfully Completes Drilling of First Deviated Deep Well

Drilling Completed!!!

Utah FORGE team has successfully completed drilling of its first highly deviated deep well. Drilling was completed 60 days ahead of schedule.

The upper part of the well was drilled vertically through approximately 4,700 feet of sediments before penetrating into high strength, crystalline granite. The well was deviated at a 65° angle from vertical after reaching a depth of 6000 ft. This angle was maintained for the remainder of the well’s trajectory. The well ultimately reached a true vertical depth of 8,559 feet, and a total measured depth of 10,987 feet. Preliminary measurements indicate temperatures at the “toe” of the well will exceed 442°F (228°C). Approximately 74 ft of core of the granitic and metamorphic rocks that will form the FORGE reservoir was also recovered.

“We are incredibly pleased with the success of the well” said Joseph Moore, Ph.D. and Principal Investigator of Utah FORGE. “It was drilled under complicated conditions and will serve as a prototype for similar wells around the world.”

With this well successfully completed, a series of tests can be run to facilitate the development of the EGS resource. Some of the tests will include determining the stress conditions through short-term injection experiments, during which microseismicity will be carefully monitored. Other tests will allow for the interpretation of the orientation and distribution of the existing and induced fractures in the granite, which will form the pathways for water to circulate and heat up in the newly created EGS reservoir. In the future, a sister well will be drilled to form the basis of an EGS.

About Utah FORGE: The Utah FORGE project is managed by the Energy & Geoscience Institute at the University of Utah. Funding for the project is provided by the U.S. Department of Energy. The FORGE site is located near the town of Milford in Beaver County, Utah, on the western flank of the Mineral Mountains. Near term goals are aimed at perfecting drilling, stimulation, injection-production, and subsurface imaging technologies required to establish and sustain continuous fluid flow and energy transfer from an EGS reservoir.

Open Press Release HERE