The Role of Micro-Proppants in Conductive Fracture Network Development

2019 ◽  
Author(s):  
Dharmendra Kumar ◽  
Ruben A. Gonzalez ◽  
Ahmad Ghassemi
Keyword(s):  
Fracture Network ◽  
Network Development

Numerical Simulation of Complex Fracture Network Development by Hydraulic Fracturing in Naturally Fractured Ultratight Formations

2013 ◽  
Author(s):  
Hannes Hofmann ◽  
Tayfun Babadagli ◽  
Günter Zimmermann
Keyword(s):  
Fracture Network ◽  
Natural Fracture ◽  
Fracture Networks ◽  
Network Development ◽  
Complex Fracture ◽  
Fracture Patterns ◽  
Fracture Systems ◽  
Fracture Development ◽  
Complex Fracture Network ◽  
Treatment Designs

The creation of large complex fracture networks by hydraulic fracturing is imperative for enhanced oil recovery from tight sand or shale reservoirs, tight gas extraction, and Hot-Dry-Rock (HDR) geothermal systems to improve the contact area to the rock matrix. Although conventional fracturing treatments may result in bi-wing fractures, there is evidence by microseismic mapping that fracture networks can develop in many unconventional reservoirs, especially when natural fracture systems are present and the differences between the principle stresses are low. However, not much insight is gained about fracture development as well as fluid and proppant transport in naturally fractured tight formations. In order to clarify the relationship between rock and treatment parameters, and resulting fracture properties, numerical simulations were performed using a commercial Discrete Fracture Network (DFN) simulator. A comprehensive sensitivity analysis is presented to identify typical fracture network patterns resulting from massive water fracturing treatments in different geological conditions. It is shown how the treatment parameters influence the fracture development and what type of fracture patterns may result from different treatment designs. The focus of this study is on complex fracture network development in different natural fracture systems. Additionally, the applicability of the DFN simulator for modeling shale gas stimulation and HDR stimulation is critically discussed. The approach stated above gives an insight into the relationships between rock properties (specifically matrix properties and characteristics of natural fracture systems) and the properties of developed fracture networks. Various simulated scenarios show typical conditions under which different complex fracture patterns can develop and prescribe efficient treatment designs to generate these fracture systems. Hydraulic stimulation is essential for the production of oil, gas, or heat from ultratight formations like shales and basement rocks (mainly granite). If natural fracture systems are present, the fracturing process becomes more complex to simulate. Our simulation results reveal valuable information about main parameters influencing fracture network properties, major factors leading to complex fracture network development, and differences between HDR and shale gas/oil shale stimulations.

scholarly journals Impact of Entrepreneurial Education on Entrepreneurial Intentions of Pakistani Students

2015 ◽  
Vol 2 (1) ◽  
pp. 43 ◽  
Author(s):  
Altaf Hussain ◽  
Dr. Norashidah
Keyword(s):  
Business Students ◽  
Entrepreneurial Intention ◽  
Important Variable ◽  
Entrepreneurial Intentions ◽  
Theoretical Knowledge ◽  
Network Development ◽  
Entrepreneurial Education ◽  
Entrepreneurship Research ◽  
Study Results

Why an individual prefer to become an entrepreneur and what factor motivated his intentions for becoming an entrepreneur is considered important question in entrepreneurship research. Entrepreneurial education is considered an important variable which effect on entrepreneurial intentions. However, empirical research results on entrepreneurial education and entrepreneurial intention yielded mixed results. To investigate further this question from developing countries perspective, this paper looks at the role of entrepreneurial education in developing the entrepreneurial intentions for becoming entrepreneur. The sample for this study composed of final year business students from Pakistan. The result of this study supports the entrepreneurial intentions model based on the theory of planned behavior. The results further suggested significant influence of entrepreneurial education on entrepreneurial intentions of the students. Moreover, this study results also showed that theoretical knowledge of entrepreneurship (know-what) and knowledge of social network development (know-who) component are vital for imparting entrepreneurial education.

scholarly journals Banking competition and its development in Russia

2019 ◽  
Vol 61 ◽  
pp. 01009 ◽  
Author(s):  
Yury Korobov
Keyword(s):  
Banking System ◽  
System Transformation ◽  
Network Development ◽  
Banking Competition ◽  
Target Setting ◽  
Local Character ◽  
Factors Influencing ◽  
Banking Markets ◽  
Theoretical Issues

The article discusses theoretical issues of banking competition as well as its ifluences on the development of banking system (transformation of the essence of a bank; change of the target setting in banking; transfer of emphasis from operations to services; universalization of banking; transition from individual services to integrated banking products; change of priority from price to non-price methods of competition; transition from extensive to intensive type of network development; increasing the role of near-banks and nonbank banks). Factors influencing banking competition in Russia are shown: both restraining (reduction in the number of banks; concentration of assets at the largest banks; uneven territorial distribution of banks; local character of banking markets) and strengthening (financial globalization; digitalization of economy; forming of new banking culture).

scholarly journals The Regulative Role of Neurite Mechanical Tension in Network Development

2009 ◽  
Vol 96 (4) ◽  
pp. 1661-1670 ◽  
Author(s):  
Sarit Anava ◽  
Alon Greenbaum ◽  
Eshel Ben Jacob ◽  
Yael Hanein ◽  
Amir Ayali
Keyword(s):  
Network Development ◽  
Mechanical Tension ◽  
Regulative Role
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