... region: propped, unpropped, and natural fractures. Local grid refinement (LGR) that accelerates the speed of computation (10 times faster acceleration than the total grid refinement) and improves accuracy. We systematically validated the new features through a refinement test and demonstrated...

... of natural fractures are often developed in its reservoirs ( Zeng et al., 2016 ; Zou et al., 2016). In the actual development process, network fracturing technology is usually used to activate natural fractures, build effective channels for oil and gas migration between hydraulic fractures and natural...

... identical, finite-conductivity fractures and is surrounded by a stimulated reservoir volume. Properties of hydraulic fractures and stimulated reservoir volumes may vary from well to well. Different properties may also be assigned to unstimulated reservoir section between wells. Natural fractures...

... spectroscopy logging, full waveform acoustic data and borehole image along conventional logs. Natural fracture systems can have a significant effect on the fluid flow within the reservoir as they create permeability and/or porosity trends resulting in overall reservoir anisotropy. Hence it is important...

... included the effect of natural fractures, using the microseismic events location as natural fracture initiation points. Finally, we used cutoff coefficients to further reduce hydraulic fracture geometries to match production data. The results of this work showed a fast and flexible method to estimate...

... Abstract The vast shale gas and tight oil reservoirs cannot be economically developed without multi-stage hydraulic fracture treatments. Owing to the disparity in the density of natural fractures and the different in-situ stress conditions in these formations, micro-seismic fracture mapping has...

... and natural fractures interaction, and provides a solid foundation for generating accurate and rich synthetic data that can be used to support a physics-based machine learning interpretation framework. The developed forward modeling, when embedded in a classification or regression artificial intelligence...

... Abstract A case study and methodology is presented to shed the light on the different processes followed during the placement of a non-damaging isolation barrier in a group of highly naturally-fractured and vugular gas wells. The temporary isolation aims at isolating the wellbore from...

... is applied to unconventional reservoirs with hydraulic and natural fractures. Our approach relies on cell volumes and connections (transmissibilities) rather than the grid geometry, and thus can be easily applied to complex grid systems. For illustrative purposes, we present applications of the proposed...

... section hydrocarbon source rock machine learning drilling operation natural fracture algorithm wellbore lateral section horizontal well elemental data Introduction Mostly oil saturation and the presence of natural fractures are overlooked when comparing wells due to lack of or cost...

... environment, P- and S-wave velocities (5536.7 m/s and 2699.7 m/s) of a core sample containing natural fractures decreases by 8.5% and 8.1% respectively, while both P- and S-wave velocities (6074.1 m/s and 3858.8 m/s) for a intact sample show only ~0.5% decreases. The interaction also causes more than 50...

... analysis lateral upstream oil & gas chemical tracer hydraulic fracturing drilling operation natural fracture communication oil tracer recovery recovery hydrocarbon production tracer recovery imaging log reservoir characterization complex reservoir structural geology completion case...

... grid refinement (LGR) method to overcome the time-intensive computation performance. The model is then coupled with reservoir models using non-neighboring connections (NNCs). Secondly, eight cases are designed using the EDFM technology to analyze the effect of natural fractures, formation permeability...

... and proppant allocation. The production stage analysis can be applied to flow profiling and fracture characterization. The objective of our DTS data analysis approach is to provide an integrated quantitative diagnosis of effectiveness of staged fracturing, and hydraulic and natural fractures with the full...

... geometries. Taking this concept a step farther, actual hydraulic fracture propagation will interact with natural fractures, localized stresses, and each other, creating an even more complex and hydraulic fracture geometry. Presented here is a novel application where the coupling of RTA and numerical...

... analysis of the local stress regime, the shorter fractures were identified as drilling-induced fractures, which should not be incorporated in the modeling of natural fractures. The new results have improved the understanding of the regional fracture system, leading to a more accurate fracture network model...

... Abstract The depletion of producing layers leads to significant stress changes in adjacent targets, especially when complex natural fractures are present. Due to weak bedding interfaces or small stress barriers, hydraulic fractures can easily penetrate neighboring layers, and this further...

..., with the vertical stress consistently being smaller than the minimum horizontal stress in all tested zones. hydraulic fracturing caprock reservoir geomechanics fracture characterization orientation natural fracture fracture closure pressure mini-frac test injection dip magnitude Reservoir...

... ( https://doi.org/10.1002/2017JB014892 ) to evaluate the pressure and stress changes associated with pore-scale flow from the low permeability matrix into a much more permeable discrete fracture network. These fractures represent pre-existing natural fractures stimulated in shear during hydraulic...

... & Simulation natural fracture Artificial Intelligence Upstream Oil & Gas hydraulic fracturing CFN machine learning fracture network hydraulic fracture unconventional reservoir modeling geometry grid equation workflow complex reservoir characterization fundamental solution history matching...