Fully Coupled 3-D Hydraulic Fracture Models—Development and Validation

Searles, K.; Zielonka, Matias G.; Garzon, Jorge L.

doi:10.1016/b978-0-12-812998-2.00006-0

Cited by 2 publications

(4 citation statements)

References 25 publications

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“…Mode I (opening) is the most relevant mode for hydraulic fracturing, as it involves the opening of fractures due to fluid pressure. Assuming minor strains in the context of solid mechanics allows for a linear relationship [27] and is given by Abaqus as:…”

Section: Stress Intensity Factor (Sif)mentioning

confidence: 99%

“…Additionally, the dry Young's modulus is symbolized by E, and the dry Poisson's ratio is represented by ν; ε represents the total strain or deformation tensor, and ε ij , represents the effective strain tensor. In the context of Abaqus, which is designed for fully saturated media, the Terzaghi effective stresses, denoted as σ , are defined according to the following sources [27].…”

Section: Stress Intensity Factor (Sif)mentioning

confidence: 99%

“…The fluid injection occurs for a particular duration, creating a pressure pulse that drives the fracture propagation. The fracture aperture, net pressure, and fracture length vary with time as the pressure pulse propagates through the formation, leading to changes in the fracture geometry and the stress distribution within the porous medium [27].…”

Section: Fracturing Fluid Flowmentioning

confidence: 99%

“…The poroelastic constants and fluid flow equations remain unchanged. This method uses less fracture fluid than conventional hydraulic fracturing methods, as demonstrated by simulations using the Abaqus program [27]. The fracturing process becomes more efficient and economical, using less fluid while still accomplishing the desired fracture propagation and reservoir stimulation.…”

Section: Fracturing Fluid Flowmentioning

confidence: 99%

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Enhancing Water Management in Shale Gas Extraction through Rectangular Pulse Hydraulic Fracturing

Badjadi,

Zhu,

Zhang

et al. 2023

Sustainability

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Although conventional hydraulic fracturing techniques have revolutionized shale gas development, they have raised concerns regarding water management and environmental impacts. This research introduces an innovative step-rectangular pulse hydraulic fracturing method to optimize water usage and reduce environmental hazards in shale gas extraction. The method involves the application of lower-energy fluid in a step-rectangular pulse pattern, which results in higher pressures, more intricate fractures, and improved water management. A comprehensive analysis of the propagation and attenuation characteristics of this technique is conducted using a combination of a two-dimensional pulse transient flow equation with damping, software numerical simulations, and theoretical analysis. The study reveals that the step rectangular pulse hydraulic fracturing method offers superior pressurization and more complex fracture networks in shale reservoirs while lowering water consumption by 20% less than conventional methods and increasing shale gas production by 12%. Through identifying optimal pulse parameters, this research provides valuable guidance for field implementation, promoting efficient water management and environmental sustainability in hydraulic fracturing operations. This novel approach to hydraulic fracturing has the potential to significantly advance the industry’s efforts to address water management challenges and mitigate environmental risks associated with shale gas extraction.

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Section: Stress Intensity Factor (Sif)mentioning

confidence: 99%

Section: Stress Intensity Factor (Sif)mentioning

confidence: 99%

Section: Fracturing Fluid Flowmentioning

confidence: 99%

Section: Fracturing Fluid Flowmentioning

confidence: 99%

See 2 more Smart Citations

Enhancing Water Management in Shale Gas Extraction through Rectangular Pulse Hydraulic Fracturing

Badjadi,

Zhu,

Zhang

et al. 2023

Sustainability

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Latest Advances in 3-D and 4-D FEM Simulation for Comprehensive Geomechanical and Geophysical Analysis of Unconventional Reservoirs, from Field Data to Numerical Models: Case Study Fm. Vaca Muerta, Argentina

Camus,

Ramos,

Bianchi

2023

Day 3 Thu, October 26, 2023

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The prime goal of the comprehensive characterization of unconventional reservoirs (organic-rich mudrocks) is to build 3-D and 4-D FEM numerical models for geomechanical and geophysical studies, such as seismic full-wave propagation, AVO or AVAz analysis, seismic inversion, well stability, hydraulic fracture propagation, cement shield and casing integrity, well to well interaction, choke management for optimal well production, tests for different landing zones, fault and layer reactivation risk cubes and other geomechanical attributes. The current technologies for the acquisition and processing of seismic data, well logs and well testing such as walkaround and walkaway VSPs, multicomponent (3C) seismic, microseismic, crossed dipole sonic logs, DFITs, etc., together with laboratory core measurements and modern rock physics models allow performing a mechanical characterization of the reservoir anisotropy, its strength properties and the stress field. This work presents a 3-D/4-D orthorhombic poroelastic geomechanical model of a vertical well in the Vaca Muerta formation (Neuquén Basin, Argentina), located in the oil generation window. The developed procedure starts from a mechanical (anisotropic) and petrophysical model, including a stress field characterization; at that point the initial reservoir conditions are reproduced. Then, a full-wave propagation synthetic seismogram (wave conversion modes), an AVO and an AVAz analysis are carried out, validating the direct model built. After that, the drilling process, casing and cement shield integrity, hydraulic fracturing and well production are simulated. As shown in this paper, these types of numerical simulations allow testing different scenarios, which helps to reduce uncertainty and anticipates issues that could affect hydrocarbon production or well integrity during the exploitation of the reservoir, leading to an increase in the return on the initial investment, which in unconventional reservoirs is very high.

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Fully Coupled 3-D Hydraulic Fracture Models—Development and Validation

Cited by 2 publications

References 25 publications

Enhancing Water Management in Shale Gas Extraction through Rectangular Pulse Hydraulic Fracturing

Enhancing Water Management in Shale Gas Extraction through Rectangular Pulse Hydraulic Fracturing

Latest Advances in 3-D and 4-D FEM Simulation for Comprehensive Geomechanical and Geophysical Analysis of Unconventional Reservoirs, from Field Data to Numerical Models: Case Study Fm. Vaca Muerta, Argentina

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