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Integrating Embedded Discrete Fracture and Dual-Porosity, Dual-Permeability Methods to Simulate Fluid Flow in Shale Oil Reservoirs

Figure 1. Fracture density and fracture length correlation.

Integrating Embedded Discrete Fracture and Dual-Porosity, Dual-Permeability Methods to Simulate Fluid Flow in Shale Oil Reservoirs Most previous simulation studies have been based on dual porosity, but simulation results from dual-porosity models have not been as accurate as discrete fracture models in composition modeling. This study proposes a new model that integrates

A Prediction Model for Methane Adsorption capacity in Shale Gas Reservoirs

Figure 3. The relationship between the clay content and Langmuir volume at experimental temperature for low, medium and high TOC shale samples.

A Prediction Model for Methane Adsorption capacity in Shale Gas Reservoirs   The model was established in four steps: a model of Langmuir volume at experimental temperature, the temperature dependence of Langmuir volume, a model of Langmuir pressure, the temperature dependence of Langmuir pressure. In the model of Langmuir volume at experimental

Imbibition — the “old all new”​production mechanism of shale gas and oil

Imbibition --- the "old all new"​ production mechanism of shale gas and oil

Imbibition --- the "old all new"​production mechanism of shale gas and oil Conventional oil and gas production mechanisms   Such conventional transport mechanism is well understood and also believed to be the dominant transport mechanism in shale gas and oil production. Under such conventional production mechanism, it is widely accepted that there is the

Numerical and Experimental Investigations of the Interactions between Hydraulic and Natural Fractures in Shale Formations

Figure 19. Photographs of specimen Y-7-1 after conducting experiments.

Numerical and Experimental Investigations of the Interactions between Hydraulic and Natural Fractures in Shale Formations The inelastic deformation, e.g., stick, slip and separation, of the geologic discontinuities is captured by a special friction joint element called Mohr-Coulomb joint element. The dynamic stress transfer mechanisms between the two fracture systems and the

Science of Carbon Storage in Deep Saline Formations: Process Coupling across Time and Spatial

Science of Carbon Storage in Deep Saline Formations: Process Coupling across Time and Spatial

Science of Carbon Storage in Deep Saline Formations: Process Coupling across Time and Spatial Editors: Pania Newell & Anastasia G. Ilgen Abstract: Science of Carbon Storage in Deep Saline Formations: Process Coupling across Time and Spatial Scales summarizes state-of-the-art research, emphasizing how the coupling of physical and chemical processes as subsurface systems re-equilibrate during

Methods of Decline Curve Analysis for Shale Gas Reservoirs

Figure 2. Shale samples. (a) Outcrop of natural fractures in Woodford Shale, Oklahoma, USA [3]; (b) High-resolution images of Montery shale, California, USA [4].

Methods of Decline Curve Analysis for Shale Gas Reservoirs In this article, the eight most popular deterministic decline curve methods are reviewed: Arps, Logistic Growth Model, Power Law Exponential Model, Stretched Exponential Model, Duong Model, Extended Exponential Decline Model, and Fractural Decline Curve model. This review article is dedicated to summarizing

Shale Reservoir Drainage Visualized for a Wolfcamp Well (Midland Basin, West Texas, USA)

Figure 11. (a–c) Row 1: Pressure contour maps (in MPa) after 1 month drainage for the same central region of Figure 9d, now including flow through micro-cracks normal to the main fractures.

Shale Reservoir Drainage Visualized for a Wolfcamp Well (Midland Basin, West Texas, USA) The visualization of flow near hypothetical micro-cracks normal to the main fractures in a Wolfcamp well shows such micro-cracks support the recovery of hydrocarbons from deeper in the matrix, but still leave matrix portions un-drained with the concurrent

Mechanisms and Influence of Casing Shear Deformation near the Casing Shoe, Based on MFC Surveys during Multistage Fracturing in Shale Gas Wells in Canada

Figure 1. Geological stratification and well structure.

Mechanisms and Influence of Casing Shear Deformation near the Casing Shoe, Based on MFC Surveys during Multistage Fracturing in Shale Gas Wells in Canada For the purpose of increasing calculation accuracy, the elastoplastic constitutive relations of materials were considered, and the solid-shell elements technique was used. The reduction of the casing’s

Great American Outpost: Dreamers, Mavericks, and the Making of an Oil Frontier

Great American Outpost Dreamers, Mavericks, and the Making of an Oil Frontier

  Great American Outpost: Dreamers, Mavericks, and the Making of an Oil Frontier Author Maya Rao   Abstract A surreal, lyrical work of narrative nonfiction that portrays how the largest domestic oil discovery in half a century transformed a forgotten corner of the American West into a crucible of breakneck capitalism. As North Dakota became the nation's

Impact of Casing Eccentricity on Cement Sheath

Figure 3. Sketch of a casing–cement–formation system in a horizontal well.

Impact of Casing Eccentricity on Cement Sheath To better understand stress distribution in eccentric cement sheaths, an analytical model is proposed in this paper. By comparing the results of this model with the one’s with centric casing, the impacts of the casing eccentricity on the integrity of the cement sheath is

Fractured Communities: Risk, Impacts, and Protest Against Hydraulic Fracking in U.S. Shale Regions

Fractured Communities: Risk, Impacts, and Protest Against Hydraulic Fracking in U.S. Shale Regions (Nature, Society, and Culture)

  Fractured Communities: Risk, Impacts, and Protest Against Hydraulic Fracking in U.S. Shale Regions (Nature, Society, and Culture) Authors Anthony E. Ladd Contributor Stephanie A. Malin, Hilary Boudet & 13 more   Abstract While environmental disputes and conflicts over fossil fuel extraction have grown in recent years, few issues have been as contentious in the twenty-first century as

The Domino Effect Russell Braziel

The shale revolution triggered The Domino Effect, a cascading series of events that has profoundly transformed energy markets, reshaped major related industries and remodeled the global economic and geopolitical landscape.

  The Domino Effect Author Russell Braziel   The Domino Effect Abstract The shale revolution triggered The Domino Effect, a cascading series of events that has profoundly transformed energy markets, reshaped major related industries and remodeled the global economic and geopolitical landscape. This book presents a unique, integrated perspective on natural gas, crude oil and natural gas

Cyclic CH4 Injection for Enhanced Oil Recovery in the Eagle Ford Shale Reservoirs

Figure 1. The sketch of CH4 injection process in the fractured horizontal well (CH4 molecules diffuse into different nanopores).

The confined phase behavior was incorporated in the model considering the critical property shifts and capillary pressure. Subsequently, we built a field-scale simulation model of the Eagle Ford shale reservoir. The fluid properties under different pore sizes were evaluated. Finally, a series of studies were conducted to examine the contributions of

Saudi America: The Truth About Fracking and How It’s Changing the World

Saudi America: The Truth About Fracking and How It's Changing the World

  Saudi America: The Truth About Fracking and How It's Changing the World Author Bethany McLean Abstract "A sharp portrait of the US shale revolution." -- Financial Times Bestselling author Bethany McLean reveals the true story of fracking's impact -- on Wall Street, the economy and geopolitics. The technology of fracking in shale rock -- particularly in

Pore Structure Characterization and the Controlling Factors of the Bakken Formation

Figure 1. Location of the Williston Basin and study area.

The Bakken Formation develops micropores, mesopores, and macropores. However, the Upper and Lower Bakken shale are dominated by micropores, while the Middle Bakken tight reservoir is dominated by mesopores. The total pore volume and specific surface area of the Middle Bakken are significantly higher than those of the Upper and

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