Take a break from the Olympics & add our upcoming webinar to your calendar! Tuesday, Aug 13th 12-1:15.
Our speaker is Aleksei Titov, Senior Geophysicist with Fervo Energy.
Title
Monitoring next-generation horizontal Enhanced Geothermal Systems using Distributed Fiber Optic Sensing
Abstract
Fervo Energy is developing horizontal Enhanced Geothermal Systems (EGS) and executed multiple Distributed Fiber Optic Sensing (DFOS) data acquisition campaigns during plug-and-perf stimulation, well-testing, and production phases. The geologic formations in these reservoirs include phyllite, diorite, granodiorite, and granite, reaching temperatures of up to 430°F. The study demonstrated that DFOS data, including in-well Distributed Acoustic Sensing (DAS), Distributed Temperature Sensing (DTS), cross-well low-frequency DAS (LF-DAS), and Distributed Strain Sensing (DSS), are vital for geothermal resource development, particularly for completion and well-spacing optimization.
The first part of this work summarizes the DFOS results from project RED (based on materials presented at SPE-217810-MS and URTEC-3852680-MS), focusing on the stimulation, well-testing, and production phases using data acquired with three wells equipped with permanent fiber optic cables. The second part presents the DFOS results from a recent three-well hydraulic stimulation at project CAPE, where data were recorded using two permanently installed fibers. Two temporarily deployed fibers (wireline and single use) were added to monitor the first stimulation treatment. The paper highlights successes and challenges encountered during the DFOS monitoring, detailing how the data obtained enabled the characterization of hydraulic fractures and calibration of reservoir simulations.
Bio
Dr. Titov is a senior geophysicist at Fervo Energy. He is responsible for optimizing enhanced geothermal reservoir performance using distributed fiber optic sensing data and is involved in shaping Fervo’s research and development strategy. Dr. Titov received a Ph.D. in Geophysics from the Colorado School of Mines, where he worked on laboratory testing, numerical modeling, and analysis of Distributed Acoustic Sensing (DAS) data for reservoir monitoring applications. Dr. Titov holds a BS and MS degree in physics from Saint Petersburg University.
Thank you Enduro-Tech Energy Services, Inc. (EES) for sponsoring this Webinar.
Register here: https://lnkd.in/gGQ_5yFb
Calendar link: https://lnkd.in/gsKmic4w
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