Observations and Modeling of Fiber Optic Strain on Hydraulic Fracture Height Growth in Hydraulic Fracturing Test Site 2 (HFTS-2)

Wang, Jiehao; Tan, Yunhui; Rijken, Margaretha; Liu, Xinghui; Singh, Amit; Li, Yan

doi:10.2118/209216-pa

Observations and Modeling of Fiber Optic Strain on Hydraulic Fracture Height Growth in Hydraulic Fracturing Test Site 2 (HFTS-2)

Journal Article · 21 January 2022 · SPE Journal

DOI:https://doi.org/10.2118/209216-pa· OSTI ID:1981036

Wang, Jiehao ^[1]; Tan, Yunhui ^[2]; Rijken, Margaretha ^[1]; Liu, Xinghui ^[1]; Singh, Amit ^[1]; Li, Yan ^[1]

Chevron Technical Center
Chevron Technical Center (Corresponding author)

Summary

Understanding fracture height growth can be of great significance to optimizing field development and improving recovery. The Hydraulic Fracturing Test Site 2 (HFTS-2) has provided a unique opportunity and an advanced data set to allow us to observe and understand fracture geometries rigorously. Low-frequency distributed acoustic sensing (LF-DAS) data from a vertical well in HFTS-2 showed three key observations: (i) excessive upward height growth (>1,000 ft) and limited downward growth of the hydraulic fractures during pumping, (ii) considerable additional upward fracture height growth (~300 ft) after well shut in, and (iii) very complex LF-DAS strain rate patterns for a small fiber-to-stage offset. Advanced geomechanical modeling was performed to simulate the hydraulic fracture propagation and the resulting strain responses in the vertical direction. The modeling results demonstrated asymmetric upward and downward fracture height growths as observed in HFTS-2 with a similar upward height growth rate. Simulated waterfall plots of vertical strain rate showed distinct patterns for different fiber-to-fracture distances. The upward-growing fracture tip can be clearly identified by the interfaces between compressing and extending zones. It was also found that the complex strain rate patterns observed in HFTS-2 for small fiber-stage offsets were not caused by the mechanical layering but possibly result from the simultaneous propagation of multiple hydraulic fractures at different rates. The simulation results improved the understating of the HFTS-2 LF-DAS data, and the simulated strain rate patterns could also serve as templates for fracture height interpretation from LF-DAS data in future.

Research Organization:: Gas Technology Institute, Des Plaines, IL (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

DOE Contract Number:: FE0031577

OSTI ID:: 1981036

Journal Information:: SPE Journal, Vol. 27, Issue 02; ISSN 1086-055X

Publisher:: Society of Petroleum Engineers (SPE)

Country of Publication:: United States

Language:: English

References (17)

Overview of Hydraulic Fracturing Test Sites (HFTS) in the Permian Basin and Summary of Selected Results (HFTS-I in Midland and HFTS-II in Delaware) No authors listed Proceedings of the 2020 Latin America Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2020-1544		January 2020
Hydraulic-Fracture Predictions With a Fully Coupled Geomechanical Reservoir Simulator No authors listed SPE Journal https://doi.org/10.2118/116470-PA		December 2009
Hydraulic Fractures in Core From Stimulated Reservoirs: Core Fracture Description of HFTS Slant Core, Midland Basin, West Texas No authors listed Proceedings of the 6th Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2018-2902624		January 2018
Plane-strain propagation of a fluid-driven fracture during injection and shut-in: Asymptotics of large toughness No authors listed Engineering Fracture Mechanics https://doi.org/10.1016/j.engfracmech.2005.07.012		March 2006
Hydraulic-fracture geometry characterization using low-frequency DAS signal No authors listed The Leading Edge https://doi.org/10.1190/tle36120975.1		December 2017
Rock Deformation and Strain-Rate Characterization during Hydraulic Fracturing Treatments: Insights for Interpretation of Low-Frequency Distributed Acoustic-Sensing Signals No authors listed SPE Journal https://doi.org/10.2118/202482-PA		August 2020
Fracture-Hit Detection Using LF-DAS Signals Measured during Multifracture Propagation in Unconventional Reservoirs No authors listed SPE Reservoir Evaluation & Engineering https://doi.org/10.2118/204457-PA		December 2020
A Systematic Interpretation of Subsurface Proppant Concentration from Drilling Mud Returns: Case Study from Hydraulic Fracturing Test Site (HFTS-2) in Delaware Basin No authors listed Proceedings of the 9th Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2021-5189		January 2021
High Fidelity Fibre-Optic Observations and Resultant Fracture Modeling in Support of Planarity No authors listed Day 1 Tue, May 04, 2021 https://doi.org/10.2118/204172-MS		April 2021
Mechanism of Microseismic Generation During Hydraulic Fracturing - With Evidence From HFTS 2 Observations No authors listed Proceedings of the 9th Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2021-5296		January 2021
Geomechanical Template for Distributed Acoustic Sensing Strain Patterns during Hydraulic Fracturing No authors listed SPE Journal https://doi.org/10.2118/201627-PA		January 2021
Can You Feel the Strain? DAS Strain Fronts for Fracture Geometry in the BC Montney, Groundbirch No authors listed Day 2 Tue, October 01, 2019 https://doi.org/10.2118/195943-MS		September 2019
Propagation, proppant transport and the evolution of transport properties of hydraulic fractures No authors listed Journal of Fluid Mechanics https://doi.org/10.1017/jfm.2018.670		September 2018
Hydraulic fracturing with leakoff in a pressure-sensitive dual porosity medium No authors listed International Journal of Rock Mechanics and Mining Sciences https://doi.org/10.1016/j.ijrmms.2018.04.042		July 2018
Learnings from the Hydraulic Fracturing Test Site (HFTS) #1, Midland Basin, West Texas - A Geomechanics Perspective No authors listed Proceedings of the 7th Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2019-1570		January 2019
Modeling of fiber-optic strain responses to hydraulic fracturing No authors listed GEOPHYSICS https://doi.org/10.1190/geo2020-0083.1		November 2020
Hydraulic fracture characterization by integrating multidisciplinary data from the Hydraulic Fracturing Test Site 2 (HFTS-2) No authors listed Proceedings of the 9th Unconventional Resources Technology Conference https://doi.org/10.15530/urtec-2021-5039		January 2021

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