Numerical modeling of hydraulic fracturing with foams and energized fluids

2020 ◽  
Author(s):  
Ilya D. Antonov
Keyword(s):  
Numerical Modeling ◽  
Hydraulic Fracturing

Numerical modeling of simultaneous hydraulic fracturing in the mode of multi-well pads

2017 ◽  
Vol 60 (2) ◽  
pp. 232-242 ◽  
Author(s):  
Jun Yao ◽  
QingDong Zeng ◽  
ZhaoQin Huang ◽  
Hai Sun ◽  
Lei Zhang
Keyword(s):  
Numerical Modeling ◽  
Hydraulic Fracturing

scholarly journals A parametric study of hydraulic fracturing interference between fracture clusters and stages based on numerical modeling

2020 ◽  
pp. 014459872095325
Author(s):  
Ang Chen ◽  
Xuyang Guo ◽  
Huiyong Yu ◽  
Lei Huang ◽  
Shanzhi Shi ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Hydraulic Fracturing ◽  
Horizontal Wells ◽  
Hydraulic Fractures ◽  
Fluid Viscosity ◽  
Shale Oil ◽  
Fracturing Fluid ◽  
Multi Stage ◽  
Study Results ◽  
Stress Contrast

Shale oil reservoirs are usually developed by horizontal wells completed with multi-stage hydraulic fractures. The fracture interference between clusters in a single stage and between consecutive stages has an impact on the stimulation quality in terms of fracture geometries and fracture widths. This study introduces a non-planar hydraulic fracture model based on the extended finite element method and its use in quantifying the effects of relevant parameters on multi-stage fracture quality in a realistic shale oil scenario. The numerical model is validated with field diagnostics based on vertical seismic profiling. Relevant parameters including stress contrast, fracturing fluid viscosity, cluster density, and fracturing in consecutive stages are quantitatively analyzed in the numerical study. Results show that effects of stress contrast on fracture quality are greater than those of fracturing fluid viscosity, while the effects are more significant in outer fractures instead of the inner fracture. Denser cluster design leads to greater inhibition for the growth of inner fractures which eventually divert them transversely. In fracturing for consecutive stages, the opening of fractures in the subsequent stages is inhibited and the fracture geometries are also altered by the inter-stage interference caused by the previous stage. Based on field data and numerical modeling, this study identifies key parameters and quantifies their effects on inter-fracture and inter-stage interference in multi-stage hydraulic fracturing in horizontal wells.

scholarly journals Numerical modeling of porous ceramics microstructure

2019 ◽  
Vol 1 (22) ◽  
pp. 5-17 ◽  
Author(s):  
Danuta Miedzińska
Keyword(s):  
Finite Element Method ◽  
Numerical Modeling ◽  
Hydraulic Fracturing ◽  
Porous Ceramics ◽  
Unconventional Reservoirs ◽  
Gas Release ◽  
Small Particles ◽  
Gas Recovery ◽  
Composite Fabrication ◽  
New Material

The presented research is directed to the porous ceramics microstructural behaviour assessment with the use of numerical methods. Such new material can be used for thermal insulation, filters, bio-scaffolds for tissue engineering, and preforms for composite fabrication. One of the newest and most interesting applications, considered in this work, is a usage of those materials for production of proppants for hydraulic fracturing of shale rocks. The hydraulic fracturing is a method of gas recovery from unconventional reservoirs. A large amount of fracturing fluid mixed with proppant (small particles of sand or ceramics) is pumped into the wellbore and its pressure causes the rock cracking and gas release. After fracturing the fluid is removed from the developed cracks leaving the proppant supporting the fracture. In the paper the grain porous ceramics which is used for proppant particles preparation was studied. The influence of grains distribution on the porous ceramics mechanical behaviour during compression was simulated with the use of finite element method.

Sign in / Sign up

Export Citation Format

Share Document