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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

Global Impact of Unconventional Energy Resources

Global Impact of Unconventional Energy Resources

Global Impact of Unconventional Energy Resources Authors Manochehr Dorraj, Ken Morgan, Contributors Anas Alhajji, Stefan Andreasson, Larry Brogdon, Tina Hunter, Bijan Khajehpour, Tatiana Mitrova, Isidro Morales, Thomas B. Murphy, Silke Popp, Michael Slattery, David Yoxtheimer Abstract The chapters in this volume represent the latest thinking on the development and exploration of unconventional energy resources in the

Shale Boom, Shale Bust: The Myth of Saudi America

Shale Boom, Shale Bust: The Myth of Saudi America

  Shale Boom, Shale Bust: The Myth of Saudi America Author Dan Dicker Shale Boom Abstract: Just about everyone has heard something about the ‘revolution’ in shale oil. Hydraulic fracturing (fracking) of rock formations unique to the United States offers the promise of cheap and abundant energy, terrific economic growth and jobs – lots of

A numerical simulation study of CO2 injection for enhancing hydrocarbon recovery and sequestration in liquid-rich shales

Less than 10% of oil is usually recovered from liquid-rich shales and this leaves much room for improvement, while water injection into shale formation is virtually impossible because of the extremely low permeability of the formation matrix. Injecting carbon dioxide (CO2) into oil shale formations can potentially improve oil recovery. Furthermore, the large surface area in organic-rich shale could permanently store CO2 without jeopardizing the formation integrity. This work is a mechanism study of evaluating the effectiveness of CO2-enhanced oil shale recovery and shale formation CO2 sequestration capacity using numerical simulation.

Petrophysical and fluid properties similar to the Bakken Formation are used to set up the base model for simulation. Result shows that the CO2 injection could increase the oil recovery factor from 7.4% to 53%. In addition, petrophysical characteristics such as in situ stress changes and presence of a natural

Argentina Shale Production 2017

The unconventional oil and gas production in the Argentine Republic is concentrated in the Neuquén Province from where tight and shale formations are exploited being Vaca Muerta, Los Molles and Lajas the main formations of interest. The shale gas production reached in August 2017 the 37,810Kboe per day and the shale oil production reached the 37,909kBbl/day in the same month, showing an increment of 18,5% for the gas and 34% for the oil production compared with August 2016.

Main exploitation areas: The Neuquén Province is divided into 170 areas or blocks for the hydrocarbons exploration and production of which 56 block are currently in tender process for the production of unconventional hydrocarbons. By increasing the depth in all of these 56 blocks we are finding the shale formations: Vaca

Production Decline Curves of Tight Oil Wells in Eagle Ford Shale

This study derives typical production curves of tight oil wells based on monthly production data from multiple horizontal Eagle Ford shale oil wells.

  Abstract This study derives typical production curves of tight oil wells based on monthly production data from multiple horizontal Eagle Ford shale oil wells. Well properties initial production (IP) rate and production decline rate were documented, and estimated ultimate recovery (EUR) was calculated using two empirical production decline curve models, the

Geological characteristics and ‘‘sweet area’’ evaluation for tight oil

Tight oil has become the focus in exploration and development of unconventional oil in the world, especially in North America and China. In North America, there has been intensive exploration for tight oil in marine. In China, commercial exploration for tight oil in continental sediments is now steadily underway. With the discovery of China’s first tight oil field—Xin’anbian Oilfield in the Ordos Basin, tight oil has been integrated officially into the category for reserves evaluation.

Abstract Tight oil has become the focus in exploration and development of unconventional oil in the world, especially in North America and China. In North America, there has been intensive exploration for tight oil in marine. In China, commercial exploration for tight oil in continental sediments is now steadily underway. With

Do Shale Pore Throats Have a Threshold Diameter for Oil Storage?

In this work, a nanoporous template with a controllable channel diameter was used to simulate the oil storage ability of shale pore throats. On the basis of the wetting behaviours at the nanoscale solid-liquid interfaces, the seepage of oil in nano-channels of different diameters was examined to accurately and systematically determine the effect of the pore diameter on the oil storage capacity.

  Do Shale Pore Throats Have a Threshold Diameter for Oil Storage?   Caineng Zou1, Xu Jin1,2, Rukai Zhu1, Guangming Gong2, Liang Sun1, Jinxing Dai1, Depeng Meng2, Xiaoqi Wang1, Jianming Li1, Songtao Wu1, Xiaodan Liu1, Juntao Wu2 & Lei Jiang2,3 1PetroChina Research Institute of Petroleum Exploration & Development (RIPED), Beijing, 100083, P.R. China. 2Key

Subcontinuum mass transport of condensed hydrocarbons in nanoporous media

Left: In bulk, molecular diffusion is well described by the hydrodynamic Stokes–Einstein relation Ds=μkBT=kB/(4πZη0) (with slip boundary conditions). The effective particle diameter 2R0 is consistent with σCH2 —independently of the alkane length—because the diffusive motion is mostly in longitudinal direction. Right: In contrast, in the nanopores, movement of alkane molecules is dominated by friction on the carbon matrix, corrected for the free volume accessible to the molecule (green sphere). The total friction force is a sum of the forces between the individual monomers with the pore wall—therefore scaling linearly with the alkane length. v stands for the molecule velocity.

Subcontinuum mass transport of condensed hydrocarbons in nanoporous  media   Kerstin Falk1, Benoit Coasne1, Roland Pellenq1, Franz-Josef Ulm1 & Lyderic Bocquet1,w   Abstract Although hydrocarbon  production from unconventional reservoirs, the  so-called shale gas, has exploded recently, reliable predictions of resource availability and extraction are missing because conventional tools fail to account  for their ultra-low permeability

Purification of High Salinity Brine by Multi-Stage Ion Concentration Polarization Desalination

This paper demonstrates technical and economic feasibility of ICP (Ion Concentration Polarization) electrical desalination for the high saline water treatment, by adopting multi-stage operation with better energy efficiency.

Purification of High Salinity Brine by Multi-Stage Ion Concentration Polarization Desalination   Bumjoo Kim1, Rhokyun Kwak2, Hyukjin J. Kwon3, Van Sang Pham1,4, Minseok Kim1, Bader Al-Anzi5, Geunbae Lim3 & Jongyoon Han1,4,6   1Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA. 2Department of Mechanical Engineering,

How to evaluate a shale play? Part B

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 Emanuel Martin In the first part of “HOW TO EVALUATE A SHALE PLAY?" we've developed: Shale play features, Main properties to evaluate, Kerogen, Total Organic Content (TOC), Organic Matter Classification, Thermal Maturity Determination, Depositional environment, facies characterization and Mineralogical composition. Now we're going to develop: Mechanical

How to evaluate a shale play? Part A

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 Emanuel Martin Introduction Shale formations constitute 60% of the rocks that make up the Earth's crust being only a small group of them containers of hydrocarbons. The necessary conditions to ensure that these rocks have generated and stored oil or gas is that they have abundant

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