A numerical study on horizontal hydraulic fracture

Abstract

A 3D non-linear fluid-solid coupling model for horizontal fracture of vertical well was established with the ABAQUS code. The wellbore, cement casing, perforation, pay layer and barriers were included in the model. Fluidsolid coupling elements were used to describe the behavior of formation stress-seepage flow coupling; pore pressure cohesive elements were employed to simulate the process of fracture initiation and propagation in formation. A typical horizontal fracturing process of a vertical well of Daqing Oilfield, China was simulated with the model. All the concerned parameters in simulation were taken from the field measurements. The simulated bottom-hole pressure evolution is consistent with the data measured from the field. The configurations of the fracture and porous pressure distributions in the fracture are presented and discussed.

Optimization System of Coalbed Methane (CBM) Horizontal Well Types and Engineering Technology Modes in southern Qinshui Basin, China

“…The horizontal segment could be caved in many stages which are in favor of the stress relief and decreasing the reservoir damage from fracturing. Like herringbone well, in the late production stage, both the U and L shape wells could be reentered, maintained, and operated [13] . According to the attitude of stratum, the L shape well could be divided into up and downdip wells (Figs.…”

Hydraulic fracture to enhance coalbed methane recovery by using coated ceramsite

“…Adachi and Detournay 9 solved the plane strain problem of a hydraulic fracture propagating in a permeable, linear elastic medium. Zhang et al 10 . established a 3D non‐linear and fluid‐solid coupling model for horizontal fracture in vertical well with the ABAQUS code.…”

“…Adachi and Detournay 9 solved the plane strain problem of a hydraulic fracture propagating in a permeable, linear elastic medium. Zhang et al 10 established a 3D non-linear and fluid-solid coupling model for horizontal fracture in vertical well with the ABAQUS code. Settgast et al 11 described the development of a computational capability focused on the creation, characterization, maintenance, and active management of optimal fracture networks for energy extraction from enhanced geothermal systems.…”

Study on Influence of Joint Locations and Hydraulic Coupling Actions on Rock Masses’ Failure Process

“…In terms of numerical simulation research, Lian Z.L. [9] and Zhang S.C. [10] used ABAQUS and developed relevant hydraulic coupling subroutine to study the crack propagation mechanism under water pressure, taking into consideration a variety of comprehensive and complex factors such as rock mechanical parameters, water pressure, ground stress and boundary conditions. Li G. [11] applied the finite difference software FLAC3D 3.00 (Fast Lagrangian Analysis of Continua) to conduct numerical analysis on a semicircle arched roadway, and analyzed the evolution laws of stresses and displacements generated by deep soft rock excavation under the influence of fissure water pressure.…”