Sentence examples for block and fracture from inspiring English sources
In addition, a new method for calculating mass exchange between the matrix block and fracture is presented.
Dual-porosity (Gilmandand Kazemi) model and two-phase flow followed by Fick's law and Darcy's law were assumed for flow of gas from the matrix block to the fracture block and fracture block to the production well.
The RTA and PBA equations are based on single-porosity models, whereas the SRV in multi-fractured shale reservoirs is actually a dual-porosity system, and the stimulated rock volume is a random network of untreated shale matrix blocks and fracture planes.
In this paper, we explore the possibility of specifying the ideal hypothetical positions of matrices blocks and fractures in fractured porous media as a single-continuum reservoir model in a way that mimics the dual-porosity dual-permeability (DPDP) configuration.
These analyses were conducted using a finite-element method, back analysis, rock block analysis and fracture network analysis.
Welltest permeability is mainly controlled by fracture permeability, matrix block size and fracture aperture, and it is not very sensitive to matrix permeability, matrix and fracture compressibilities, and matrix and fracture porosities.
The hierarchical fracture model (Lee et al. 2001) also requires that one define effective properties of the matrix blocks and fractures which are too small to be represented explicitly.
In the single continuum approach, the reservoir is divided into a number of blocks and the fracture properties in each block are averaged by using a representative effective permeability tensor.
Specimens of TFW series, LFW series and FW series failed by tensile fracture, shear fracture and block shear fracture in the weld metal of connections.
Modified strength equations were suggested considering effective shear stress in block shear fracture and curling effect by bolt bearing action.
Characterization of the natural fractures generally includes estimating the dynamic parameters such as fracture permeability, and determining the static parameters such as fracture spacing (matrix block size), fracture aperture and fracture porosity (Racht and Golf 1982).
