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1-20 of 169
Keywords: natural fracture
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Proceedings Papers
Ensemble Based Workflow for Robust History Matching and Forecasting of Hydraulic Fractured Wells
Available to PurchaseKaustubh Shrivastava, Niven Shumaker, Vinil Kumar Reddy Mukku, Priyavrat Shukla, Brandon Tang, Jose Rojas
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4242831-MS
... properties, and completion design. The model is then used for generating simulation ensembles by varying uncertain fracture model parameters such as fracturing fluid leak-off, presence of natural fractures, weak bedding laminations, etc. Both completion model parameters and reservoir parameters...
Proceedings Papers
Pre-Refracturing Stress Field Simulation in Shale Gas Reservoirs
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4246194-MS
... on the stress distribution before the operation. To address this, this study presents a model to simulate the stress field before refracturing in shale reservoirs. This model integrates the propagation of fractures during initial hydraulic fracturing under the influence of natural fractures, and the pressure...
Proceedings Papers
Geological Engineering Characteristics and Comprehensive Fracability Evaluation Method of the Tight Sandstone in the Jurassic Qianfoya Formation in Sichuan Basin in China
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4246675-MS
... and development breakthroughs in the field of tight sandstone. The non-uniform distribution of natural fractures and lateral changes in lithology in reservoirs make it difficult to evaluate geology-engineering sweet spots, and there is a lack of quantitative evaluation methods for the three-dimensional...
Proceedings Papers
Evaluation and Optimization of EOR Huff-N-Puff Gas Injection in Vaca Muerta Shale
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4249116-MS
... Abstract The Vaca Muerta shale is complex, exhibiting significant lateral and vertical variability in lithology, mineralogy, organic content, pore structure, and thermal maturity. Natural fractures and laminations due to beef, ash beds and concretions further complicate extraction and recovery...
Proceedings Papers
High-Resolution DFN Modeling via Seismic Attribute Integration in the Sichuan Basin for Completion Optimization
Available to PurchaseXuefeng Yang, Shengxian Zhao, Dongchen Liu, Deliang Zhang, Lieyan Cao, Joseph Leines Artieda, Chuxi Liu, Wei Yu, Jijun Miao
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4257601-MS
... Abstract Geological discontinuities such as natural fractures, faults, and fracture corridors significantly influence hydraulic fracturing in the Sichuan Basin, China. Despite high-quality seismic campaigns, efficient utilization of seismic data for robust reservoir characterization remains...
Proceedings Papers
Analysis of Casing Deformation in Horizontal Wells of Deep Shale Gas Reservoirs: Causes and Mitigation Strategies
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4262091-MS
... three dominant deformation mechanisms: (Type I) large dogleg angle with layer slippage, (Type II) high incidence angle with layer slippage, and (Type III) fault or natural fracture slippage. A comprehensive classification framework is developed using field observations, multi-arm caliper data...
Proceedings Papers
Geoscientific Insights from Hydraulic Fracturing Field Tests of Continental Shale Oil in the Ordos Basin
Available to PurchaseQihong Lei, Fujian Ma, Tianjing Huang, You'an He, Yin Luo, Yuan You, Bei Gao, Liangbing Cheng, Shu Zhang, Jing Hua
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4262504-MS
... optic data analysis in neighboring horizontal wells (DSS, DAS, DTS), and downhole television data. Through comprehensive analysis of the test pad and surrounding wells, three-dimensional geological, natural fracture, and geomechanical models were established. These models, combined with first-hand...
Proceedings Papers
Influence of Natural Fractures on Hydraulic Stimulation in Geothermal Reservoirs: Insights from Utah FORGE Coupled Hydro-Mechanical Modeling
Available to PurchaseHafssa Tounsi, Branko Damjanac, Zorica Radakovic-Guzina, Wei Fu, Aleta Finnila, Pengju Xing, Robert Podgorney, John McLennan
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 9–11, 2025
Paper Number: URTEC-4264117-MS
... Abstract The 2024 hydraulic stimulation campaign at the Utah FORGE site aimed to enhance connectivity and increase permeability between the injection and production wells by inducing hydraulic fractures and stimulating pre-existing fractures in a naturally fractured geothermal reservoir. While...
Proceedings Papers
A Revolutionary Workflow for Precise and Fast Calibration of Hydraulic and Natural Fractures' Geometries in Sichuan's Shale Gas Basin, Southwest China
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 17–19, 2024
Paper Number: URTEC-4054820-MS
... Abstract Achieving reliable calibrations of hydraulic fracture geometries of half-length and height, as well as understanding natural fractures within the Sichuan Shale Gas Basin in Southwest China, is a formidable challenge. This is due to the pronounced stress heterogeneity and the intricate...
Proceedings Papers
The Effect of Variations of Fluid Pressure in Natural Fractures on the Geometry of Fracture Networks and Well Productivity
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 13–15, 2023
Paper Number: URTEC-3864802-MS
... Abstract In past studies, changes in fluid pressure in natural fractures (planes of weakness) have been ignored for the interaction of hydraulic and natural fractures. To overcome these limitations, in this paper we develop a method to simulate the growth of hydraulic fractures...
Proceedings Papers
Understanding the Natural Fracture System in the Ultra-Deep Sandstone Reservoir Using High-Definition Oil-Based Microresistivity Image Logs, Case Study from Junggar Basin
Available to PurchaseRenzhong Gan, Hao Zhang, Jing Chen, Weidong Huang, Xu Zhang, Bo Liu, Tao Zhang, Wei Wang, Guo Wei, Adaobi Elekwachi, Gamal Sultan
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3702216-MS
... for a formation with such low porosity. Limited core data shows that the natural fractures are well-developed and may strongly enhance the permeability of the tight reservoir. The testing results also show that the subsurface reservoir exhibits high pressure and high temperatures (HPHT). Fractures observed...
Proceedings Papers
Analysis of Multiple Flow/Buildup Tests Including a 5-year Buildup: Case Study of an Australian Shale Gas Well
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3705570-MS
... that any effects caused by stress-sensitivity of reservoir parameters are largely reversible. Permeability derived from all tests are much larger than those obtained from laboratory data, leading to the interpretation that natural fractures are elevating system permeability. Fracture half-lengths are also...
Proceedings Papers
New Discrete Fracture Networks (DFN) Model with Coupled Geomechanics and Fluid Flow
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3721135-MS
... increases from nanodarcy to micro darcy scale, leak-off and invasion of hydraulic water increase substantially. The application of geomechanics in opening and closing natural fractures with pressure has a significant effect on water distribution inside reservoirs and the production of fluids. The natural...
Proceedings Papers
An Innovated and Integrated Smart Fracture Calibration Workflow Based on Geophysics and Geology for Deep Shale Reservoirs with Complex Natural Fracture Networks
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3720967-MS
... extremely challenging. In this study, the objective is to develop a workflow to calibrate fracture geometries with consideration of sophisticated G&G information, and realistic 3D natural fracture networks. This workflow is ground-breaking, due to its unique capability to incorporate complex problem...
Proceedings Papers
An Accurate and Efficient Fracture Propagation Model Auto-Calibration Workflow for Unconventional Reservoirs
Available to PurchaseChuxi Liu, Kan Wu, Jianfa Wu, Cheng Chang, Xuefeng Yang, Yiwen Gong, Edward Zhao, Wei Yu, Kamy Sepehrnoori
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3720957-MS
... parameter horizontal well flow in porous media drilling operation natural fracture hydraulic fracture simulation calibration workflow technology conference directional drilling injection period zfrac-ai workflow fracture propagation model autocalibration workflow unconventional reservoir...
Proceedings Papers
Fracture Diagnostics in Naturally Fractured Formations: An Efficient Geomechanical Microseismic Inversion Model
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3723539-MS
... Abstract Microseismic events are monitored to understand the geometry of hydraulically induced fractures. In this paper, a geomechanical microseismic simulator that includes natural fractures is developed to (1) evaluate source information based on improved nonlinear solvers, (2) extend...
Proceedings Papers
Multi-Level of Fracture Network Imaging: A HFTS Use Case and Knowledge Transferring
Available to PurchaseGuoxiang Liu, Abhash Kumar, Song Zhao, Chung Yan Shih, Veronika Vasylkivska, Paul Holcomb, Richard Hammack, Jeffery Ilconich, Grant Bromhal
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, June 20–22, 2022
Paper Number: URTEC-3723466-MS
... of fracture networks comprised of both preexisting natural fractures and newly created fractures from hydraulic stimulation has significant implications for both optimizing production and minimizing the infrastructure footprint on the ecosystem. Towards this goal, this study synthesizes all available datasets...
Proceedings Papers
Mechanical Stratigraphy Modeling, the Foundation of Unconventional Geomechanical Analysis
Available to Purchase
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5153-MS
... integrity reservoir characterization wellbore design reservoir geomechanics complex reservoir stratigraphy modeling mechanical stratigraphy modeling mechanical properties intensity natural fracture geomechanical rock type mechanical stratigraphy deformation structural geology calibration...
Proceedings Papers
Integration of Geology, Geomechanics, and Completion Data in Modeling for Future Well and Completion Optimization: An Unconventional Diyab Case Study
Available to PurchaseH. Pourpak, W. Newby, S. Taubert, H. Al Marzooqi, M. Z. Baig, A. Lefebvre-Prudencio, Y. Wu, C. Pointer, F. Cafardi, V. De Gennaro, M. L. Nistor
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5221-MS
... workflow has allowed us to observe the role that geology, natural fractures, rock mechanical properties and stress regimes play in the fracture propagation for the unconventional Diyab play. The model simulations show how the hydraulic fractures propagate and how they interact with pre-existing natural...
Proceedings Papers
Subsurface Characterization of Hydraulic Fracture Test Site-2 (HFTS-2), Delaware Basin
Available to PurchaseFadila Bessa, Kanay Jerath, Chris Ginn, Patrick Johnston, Yu Zhao, Tim Brown, Ruben Lopez, James Kessler, Brian Nicklen, Vinay Sahni
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5243-MS
... fracture network growth in relation to inherent lithology, geomechanical properties, and interaction with pre-existing natural fractures. This paper presents a characterization workflow incorporating pre- and post-stimulation subsurface data, unique to the HFTS-2 dataset. The study integrated: (1) rock...
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