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Keywords: natural fracture
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Proceedings Papers

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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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