Reservoir Simulation0
Figure 10. Field distribution of Knudsen number and matrix pressure in shale gas reservoir. (a) km = 10−5 mD, Kn; (b) km = 10−4 mD, Kn; (c) km = 10−3 mD, Kn; (d) km = 10−5 mD, pm; (e) km = 10−4 mD, pm; (f) km = 10−3 mD, pm.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms Part 2

Reservoir Simulation0
Figure 6. A numerical model of a multi-section fractured horizontal well.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms

Reservoir Simulation0
Figure 1. Multi-region coupled shale reservoir physical model (Well-A and well-B are two multi-stage fracturing horizontal wells (MFHWs),

Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference

Reservoir Simulation0
Figure 1. Schematic of two hydraulic fractures (HF) and SRV area with local grid refinement. SRV length is 450 ft. SRV width is variable; depending on fracture spacing.

Evaluation of Cyclic Gas Injection in Enhanced Recovery from Unconventional Light Oil Reservoirs: Effect of Gas Type and Fracture Spacing

Reservoir Simulation0
Figure 2. Illustrations of dimensionless pressure distributions for various shapes of fractures.

A Fully Three Dimensional Semianalytical Model for Shale Gas Reservoirs with Hydraulic Fractures

Reservoir Simulation0
Figure 6. Natural fracture generation and upscaling in 3D grid systems—(a) natural fracture generation, (b) fracture porosity, (c) sigma factor, (d) fracture permeability, x, (e) fracture permeability, y, and (f) facture permeability, z.

Hydraulic Fracture Design with a Proxy Model for Unconventional Shale Gas Reservoir with Considering Feasibility Study

Hydrulic Fracture0
Figure 1. Schematic of physical models for hydraulically fractured horizontal wells. (a) The typical five-region flow model proposed by Stalgorova and Mattar [10]. (b) The improved five-region flow model (new model). Fracture half-length: xf; width of the hydraulic fracture: wD; distance from the hydraulic fracture to stimulated reservoir volume (SRV): y1; no flow bound: x2,y2.

An Analytical Flow Model for Heterogeneous Multi-Fractured Systems in Shale Gas Reservoirs

Reservoir Simulation0
Figure 1. Three transverse fractures with a uniform spacing of 23.3 m in a single stage.

Numerical Study of Simultaneous Multiple Fracture Propagation in Changning Shale Gas Field

United States Shale0
Figure 1. Schematic chart between two fractures. (a) Virtual boundary between two fractures. (b) Schematic chart of pressure distribution.

An Analytical Model for Capturing the Decline of Fracture Conductivity in the Tuscaloosa Marine Shale Trend from Production Data

Rock Evaluation and Wellbore Stability0
Figure 1. The porosity values obtained from mercury intrusion capillary pressure (MICP), Helium, and nuclear magnetic resonance (NMR) for two different shale formations.

Comparative Porosity and Pore Structure Assessment in Shales: Measurement Techniques, Influencing Factors and Implications for Reservoir Characterization

Hydrulic Fracture0
Figure 1. Twelve hydraulic fractures developed from 12 perforation clusters in three stages of fracturing.

A Data-Driven Workflow Approach to Optimization of Fracture Spacing in Multi-Fractured Shale Oil Wells

Hydrulic Fracture0
Figure 8. Crack geometry in different fracturing fluid injection rate.

Using Cohesive Zone Model to Simulate the Hydraulic Fracture Interaction with Natural Fracture in Poro-Viscoelastic Formation

Figure 10. Field distribution of Knudsen number and matrix pressure in shale gas reservoir. (a) km = 10−5 mD, Kn; (b) km = 10−4 mD, Kn; (c) km = 10−3 mD, Kn; (d) km = 10−5 mD, pm; (e) km = 10−4 mD, pm; (f) km = 10−3 mD, pm.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms Part 2

0
Figure 6. A numerical model of a multi-section fractured horizontal well.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms

0
Figure 1. Multi-region coupled shale reservoir physical model (Well-A and well-B are two multi-stage fracturing horizontal wells (MFHWs),

Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference

0
Figure 1. Schematic of two hydraulic fractures (HF) and SRV area with local grid refinement. SRV length is 450 ft. SRV width is variable; depending on fracture spacing.

Evaluation of Cyclic Gas Injection in Enhanced Recovery from Unconventional Light Oil Reservoirs: Effect of Gas Type and Fracture Spacing

0

Shale Basic Knowledge

Unconventional fields only produce hydrocarbons cost-effectively through stimulation treatments to large-scale, due to this, the determination of the mechanical properties of the formation and its variation along the same recover a greater importance in these "reservoirs" since these allow us to determine the degree of fracturability of the formation, select the optimal orientation of the wells and designing the fracture treatment. .shale formation modeling in a simulation through information acquired with seismic and well logs.

How to evaluate a shale play? Part B

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HOW TO EVALUATE A SHALE PLAY? Part B Emanuel Martin In the first part of “HOW TO EVALUATE A SHALE PLAY?" we've developed: Shale play features, Main properties

is required to know the values of porosity, water saturation, permeability, reservoir volume and the volumetric factor of the gas or oil; the Total Organic Carbon (TOC), thermal maturity, depositional environment, mineralogical composition and mechanical properties.

How to evaluate a shale play? Part A

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How to evaluate a shale play? Part A Emanuel Martin Introduction Shale formations constitute 60% of the rocks that make up the Earth's crust being only a small group

Pores in shale plays

WHERE IS THE GAS STORED? Shale Pores

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Michigan Department of Environmental Quality website. Slurry blender, pump truck, proppant, van, Wellhead, Allaboutshale.com, shale handbook.

WHAT IS HYDRAULIC FRACTURING? PART B

1
Hydraulic Fracturing also known as fracking or fracing is a wells stimulation technique developed in 1947 by Stanolind Oil and aims to increase the drainage area and the performance of the same through the creation of fractures in the productive formation.

What is hydraulic fracturing? part A

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Gray Shale rock from Vaca Muerta Formation, Neuquén, Argentina.

WHAT IS A SHALE?

1

Flow Mechanics

Figure 1. Multi-region coupled shale reservoir physical model (Well-A and well-B are two multi-stage fracturing horizontal wells (MFHWs),

Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference

0

Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference The model is numerically solved using the perpendicular bisection (PEBI) grids and the finite volume

Figure 1. Schematic of physical models for hydraulically fractured horizontal wells. (a) The typical five-region flow model proposed by Stalgorova and Mattar [10]. (b) The improved five-region flow model (new model). Fracture half-length: xf; width of the hydraulic fracture: wD; distance from the hydraulic fracture to stimulated reservoir volume (SRV): y1; no flow bound: x2,y2.

An Analytical Flow Model for Heterogeneous Multi-Fractured Systems in Shale Gas Reservoirs

0
Figure 1. Three transverse fractures with a uniform spacing of 23.3 m in a single stage.

Numerical Study of Simultaneous Multiple Fracture Propagation in Changning Shale Gas Field

0
Analysis of Pressure Communication between the Austin Chalk and Eagle Ford Reservoirs

Analysis of Pressure Communication between the Austin Chalk and Eagle Ford Reservoirs during a Zipper Fracturing Operation PART 2

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Figure 2. (a) RELLIS wellbore trajectories. The white arrows represent the surface location of each well. The dotted outline represents the landing zone.

Analysis of Pressure Communication between the Austin Chalk and Eagle Ford Reservoirs during a Zipper Fracturing Operation

0

Hydrulic Fracture

Figure 10. Field distribution of Knudsen number and matrix pressure in shale gas reservoir. (a) km = 10−5 mD, Kn; (b) km = 10−4 mD, Kn; (c) km = 10−3 mD, Kn; (d) km = 10−5 mD, pm; (e) km = 10−4 mD, pm; (f) km = 10−3 mD, pm.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms Part 2

0

Example Simulation Model Parameters In this section, we simplify the shale gas reservoir with complex micro-scale fractures into a combination of as a dual porosity continuum media

Figure 6. A numerical model of a multi-section fractured horizontal well.

Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms

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Numerical Simulation Study on Seepage Theory of a Multi-Section Fractured Horizontal Well in Shale Gas Reservoirs Based on Multi-Scale Flow Mechanisms The sequential solution is performed

Figure 2. Illustrations of dimensionless pressure distributions for various shapes of fractures.

A Fully Three Dimensional Semianalytical Model for Shale Gas Reservoirs with Hydraulic Fractures

0
Figure 6. Natural fracture generation and upscaling in 3D grid systems—(a) natural fracture generation, (b) fracture porosity, (c) sigma factor, (d) fracture permeability, x, (e) fracture permeability, y, and (f) facture permeability, z.

Hydraulic Fracture Design with a Proxy Model for Unconventional Shale Gas Reservoir with Considering Feasibility Study

0
Figure 1. Schematic of physical models for hydraulically fractured horizontal wells. (a) The typical five-region flow model proposed by Stalgorova and Mattar [10]. (b) The improved five-region flow model (new model). Fracture half-length: xf; width of the hydraulic fracture: wD; distance from the hydraulic fracture to stimulated reservoir volume (SRV): y1; no flow bound: x2,y2.

An Analytical Flow Model for Heterogeneous Multi-Fractured Systems in Shale Gas Reservoirs

0
Figure 1. Schematic chart between two fractures. (a) Virtual boundary between two fractures. (b) Schematic chart of pressure distribution.

An Analytical Model for Capturing the Decline of Fracture Conductivity in the Tuscaloosa Marine Shale Trend from Production Data

0

Others

Figure 1. Schematic of two hydraulic fractures (HF) and SRV area with local grid refinement. SRV length is 450 ft. SRV width is variable; depending on fracture spacing.

Evaluation of Cyclic Gas Injection in Enhanced Recovery from Unconventional Light Oil Reservoirs: Effect of Gas Type and Fracture Spacing

0
Fig. 2 The shallow groundwater chemical composition

Groundwater baseline water quality in a shale gas exploration site and fracturing fluid-shale rock interaction

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Fig. 3. Surface comparison of shale before and after ScCO2 fluid treatment (10 MPa, 50 °C) [53].

Current research into the use of supercritical CO2 technology in shale gas exploitation

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Fig. 1. A framework for engagement best practice.

Shale development in the US and Canada: A review of engagement practice

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this paper integrates for the first time environmental, economic and social aspects of shale gas to evaluate its overall sustainability

Sustainability of UK shale gas in comparison with other electricity options: Current situation and future scenarios

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Fig. 1. Fractions of TOC (A) and molecular composition of LMW acid (B) and LMW neutral (C) fractions of the shale gas flowback water.

Removal of organic compounds from shale gas flowback water

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