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Hydraulic Fracturing Test Site #2 - Part IV and V

Tuesday, 27 July 2021, 8:25 a.m.–12:15 p.m.  |  Houston, Texas

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Course Content

The Hydraulic Fracturing Test Site (HFTS) Program is a research and development (R&D) partnership sponsored by the U.S Department of Energy, National Energy Technology Laboratory (DOE-NETL) and major and independent operator and service companies, managed by the Gas Technology Institute (GTI). The objectives of the HFTS program are to diagnose and understand the hydraulic fracturing process for field development optimization in Unconventional Resources, minimize their environmental impacts by reducing the number of new wells required for effective resource recovery, and improve extraction economics to expand the economically viable resource at increasingly lower commodity prices. A unique aspect of the test sites is the drilling of research wells dedicated to coring through the created hydraulic fractures thus directly measuring fracture locations, fracture quantity, proppant concentrations and other data.

There are currently two test sites in the program, both in the Permian Basin. HFTS-1, operated by Laredo Petroleum, is located in the Midland Sub-Basin, and was the subject of an URTeC Invited Session in 2018. HFTS-2, operated by Occidental Petroleum, is in the Delaware Sub-Basin. Since results of the R&D are confidential to the program sponsors for a period of 2-years, early results from HFTS-2 are just now becoming publicly available and will be the subject of the presentations in this session.

8:25 am–12:15 pm
In-Person – George R. Brown Convention Center, Room 360
Included with Registration
Gustavo Ugueto
Jordan Ciezobka


Observations and Modeling of Fiber-Optics Strain on Hydraulic Fracture Height Growth in HFTS-2

Jiehao Wang, Chevron

Jiehao is a Geomechanics Specialist with Geomechanics Chapter at Chevron Technical center. His research interests are focused on hydraulic fracturing, proppant transport, and geomechanical modeling. He has published more than 20 papers in peer-reviewed journals and conference proceedings. Jiehao holds a Ph.D. degree in Energy and Mineral Engineering from Penn State University and BSc. degree in Engineering Mechanics from China University of Mining and Technology.

A New Fracture Diagnostic Tool for Unconventionals High Resolution Distributed Strain Sensing via Rayleigh Frequency Shift during Production in Hydraulic Fracture Test 2

Gustavo Ugueto, Shell Exploration & Production Company

Gustavo Ugueto is Shell’s Fiber Optic Regional Deployment coordinator for the Americas and Principal Petrophysicist for Shell’s Unconventional Technology Organization. In 1982, he received a degree in Geological Engineering from Universidad Central de Venezuela. Gustavo began his career as Petrophysical Engineer at Petroleos de Venezuela in 1981, later joining Shell International in 1988 where he has worked as Petrophysical Engineer, Section Head of Petrophysics and Discipline Head of Petrophysics in The Hague, London, Nigeria and Brunei respectively. He transferred to Shell in the USA in 1997 where he worked in several exploration and development projects in the Shelf and in Deep Water Gulf of Mexico (Auger and Mars-Ursa Basin). Starting in 2005 he began his works on the development of Unconventional Tight Gas Sands and Shales Reservoirs as a lead Petrophysicist, Assets Technology Coordinator and Geoscience Advisor for multiple exploration and development assets in the US-Rockies, including Pinedale. During this time, he led multiple efforts aimed at the integration of frac-diagnostics and modeling and has participated in the installation and interpretation in most of Shell’s Fiber Optic deployments in Unconventionals (about 50 wells). In 2010, he became Shell’s Global Principal Technical Expert (PTE) for Data Acquisition and Special Processing within Petrophysics. He is currently the Focal Point for Frac Diagnostics within Unconventionals, concentrating on Fiber Optic development and data integration. Throughout his career Gustavo Ugueto has participated in several projects involving collaboration between academia and industry. He participated as industry advisor in the USGS/Stanford University San Andreas Fault Observatory at Depth (SAFOD). He led the instrumentation and Fiber Optic interpretation of wells in GTI Hydraulic Fracturing Test Site #2 Consortium in the Permian Delaware Basin and more recently he is co-Pi in a University of Texas Austin project in the EGS FORGE in Utah.

A Systematic Interpretation of Subsurface Proppant Concentration from Drilling Mud Returns: Case Study from Hydraulic Fracturing Test Site (HFTS-2) in Delaware Basin

Debotyam Maity, Gas Technology Institute

Debotyam Maity is a Senior Engineer in the Sub-surface Technology Group at Gas Technology Institute (GTI). He has worked with GTI for the past 8 years. His research interests revolve around data analytics, reservoir characterization, geophysical techniques, geomechanics, hydraulic fracture completions as well as fracture diagnostics.He has been involved with various DOE funded research projects in the geothermal as well as hydraulic fracturing space including the recent HFTS-I & HFTS-II programs. He has authored or co-authored more than 25 technical papers and holds three patents in the field of hydraulic fracturing completion techniques and diagnostics. Dr. Maity holds a Ph.D. in Petroleum Engineering from University of Southern California. He is a member of SPE and SEG professional societies.

Analysis and Integration of the Hydraulic Fracturing Test Site -2 (HFTS-2) Comprehensive Dataset Venkateswaran

Sriram Pudugramam, Occidental

Sriram Pudugramam is a Simulation Design Manager at Occidental in Houston. His team supports the Texas Delaware Basin and Midland Basin Business Units on development planning decisions using geological and simulation modeling. His team also leads the effort for the conception and execution of EOR in Unconventional Reservoirs. His previous role at Oxy was Reservoir Engineer in the Conventional Assets where he managed the operations of the most mature CO2 flooded oil field in the Permian Basin. Previously, he also worked at Shell supporting assets in South East Asia and North Africa. Sriram has a Masters in Petroleum Engineering from The University of Texas at Austin and an MBA from The University of Chicago Booth School of Business. Sriram is also a licensed Professional Engineer in the State of Texas.

Novel Geochemistry Determined From High Pressure, High Temperature Simulation Experiments of Hydraulic Fracture Test Site 2

Djuna Gulliver, NETL-DOE

Dr. Djuna Gulliver is a research scientist for the National Energy Technology Laboratory (NETL), Department of Energy. Her expertise is in geochemistry and geomicrobiology in energy and energy-impacted environments. She has 7 years of experience investigating the biogeochemical processes in unconventional oil and gas reservoirs and infrastructure. She utilizes next generation sequencing coupled with bioinformatic analysis to characterize the abundant microbial taxonomy, potential metabolic capability, and microbial activity of these natural and engineered systems. She couples this biological data with geochemical profiles to gain insight on dynamic reactions that affect oil and gas productivity. Dr. Gulliver also is currently analyzing the microbial communities in other energy systems, such as carbon storage reservoirs, acid mine drainage, coalbed methane reservoirs, and novel waste-to-product technologies. Djuna Gulliver has a Ph. D in Environmental Engineering from Carnegie Mellon University, a Master’s Degree in Environmental Engineering from Johns Hopkins University, and a Bachelor’s Degree in Chemical Engineering, Geology, and Geophysics from University of Minnesota.
Contact info: 412-386-7247, [email protected]

Inference of Induced Fracture Geometries Using Fiber-Optic Distributed Strain Sensing in Hydraulic Fracture Test Site 2

Alexei Savitski, Shell Exploration & Production Company

Alexei Savitski is a Geomechanics subject matter expert Shell. He earned a Diploma in Physics and Mechanics from Polytechnique Institute (St. Petersburg, Russia, 1995) and an MSc (1998) and a PhD (2000)in Civil Engineering from University of Minnesota. Before joining Shell in 2003 he spent one year at École Polytechnique (France) as a postdoctoral researcher.

At Shell, he worked mostly in technology organizations on various applications of the geomechanics: borehole stability, 3D geomechanical modeling, coupled reservoir geomechanics and hydraulic fracturing. He has also worked on problems of different unconventional reservoirs: oil sands, oil shales and, now,shale gas and tight oil. His current interests are hydraulic fracturing, in-situ stress testing, and integration of subsurface data to understand the production mechanisms occurring in Unconventional rocks.

Key Learnings from Hydraulic Fracturing Test Site - 2 (HFTS-2), Delaware Basin

Yu Zhao, Occidental

Yu Zhao is a reservoir engineer at Occidental in Houston, where he provides unconventional simulation support to TX Delaware and Midland Basin BUs. Yu also has extensive interests and experience in fiber optic (FO) data analysis and interpretation. Yu earned a PhD degree in Petroleum Engineering from the University of Tulsa, Oklahoma, USA.


Hydraulic Fracturing Test Site #2 - Part IV and V
George R. Brown Convention Center
1001 Avenida De Las Americas
Houston, Texas 77010
United States
(713) 853-8000