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Improved Water Use Estimates for Drilling and Hydrualic Fracturing in Northeastern Colorado

Improved Water Use Estimates for Drilling and Hydrualic Fracturing in Northeastern Colorado

This study shows that the number of hydraulic fracturing stages is a better measure of the future water demands for horizontal wells. Vertical wells use significantly less water than horizontal wells and will be less prevalent in the future. Introduction Water resources in Northeastern Colorado and the western United States are constantly

A Comprehensive Prediction Model of Hydraulic Extended-Reach Limit Considering the Allowable Range of Drilling Fluid Flow Rate in Horizontal Drilling

A Comprehensive Prediction Model of Hydraulic Extended-Reach Limit Considering the Allowable Range of Drilling Fluid Flow Rate in Horizontal Drilling

Results show that when Qmin ≤Qr ≤Qmax (Case I), Lh depends both on horizontal-section limit based on rated pump pressure (Lh1 ) and horizontal-section limit based on rated pump power (Lh2 ); when Qmin  < Q max  < Qr (Case II), Lh is exclusively controlled by Lh1; while Lh is only determined by

Comparative Study and Analysis of the Development of Shale Gas between China and the USA

Figure 1. The relationship between shale gas and other types of oil and gas reservoir (revised from Schenk C. J. & Pollastro R. M., 2001 [5] ).

This paper presents the importance of the formation principle of shale gas and the energy application, and compares the progress of shale gas studies, exploitation technology as well as the study hot-points between China and the USA. Meanwhile, this paper states the difficulties and challenges with the development of shale

Fault reactivation and earthquakes with magnitudes of up to Mw4.7 induced by shale-gas hydraulic fracturing in Sichuan Basin, China

Figure 6 Numerical model for coupled thermal-hydrological-mechanical simulation of injections in horizontal wells for hydraulic fracturing.

The geologic reasons why earthquake magnitudes associated with hydraulic fracturing operations are so high in this area are discussed. Because hydraulic fracturing operations are on the rise in the Sichuan Basin, it would be beneficial for the geoscience, gas operator, regulator, and academic communities to work collectively to elucidate the

Examining the Effects of Environmental Policy on Shale Gas Production: The Case of Alberta, Canada

Figure 2. CO/RE model. (After Konschnik and Boling 2014).

This paper applies the CO/RE model of Konschnik and Bolingin examining Alberta’s environmental regulatory framework and the impact; it will have on further shale gas production in the province. Aside from the identification of risks associated with increased seismicity, the results of this examination suggest that the current regulatory environment

Carbon Dioxide Storage and Sequestration in Unconventional Shale Reservoirs

Carbon Dioxide Storage and Sequestration in Unconventional Shale Reservoirs

In this paper we study the state of the art of the technology of CO2 storage and sequestration and provide different and fresh look for its complex phenomena from a mathematical modeling point of view. Moreover, we hope this study provides valuable insights into the use of depleted shale gas

Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water

Superhydrophilic Functionalization of Microfiltration Ceramic Membranes Enables Separation of Hydrocarbons from Frac and Produced Water

Membrane fouling is essentially eliminated, while a specific flux is obtained at a lower pressure (<2 bar) than that required achieving the same flux for the untreated membrane (4–8 bar). Introduction Although the long-term solution to global energy needs must be based on renewable sources, the present demand for oil and gas shows no

Microbial metabolisms in a 2.5-km-deep ecosystem created by hydraulic fracturing in shales

Microbial metabolisms in a 2.5-km-deep ecosystem created by hydraulic fracturing in shales

Abstract Hydraulic fracturing is the industry standard for extracting hydrocarbons from shale formations. Attention has been paid to the economic benefits and environmental impacts of this process, yet the biogeochemical changes induced in the deep subsurface are poorly understood. Recent single-gene investigations revealed that halotolerant microbial communities were enriched after hydraulic

The effect of hydraulic flowback and produced water on gill morphology, oxidative stress and antioxidant response in rainbow trout (Oncorhynchus mykiss)

The effect of hydraulic flowback and produced water on gill morphology, oxidative stress and antioxidant response in rainbow trout (Oncorhynchus mykiss)

Abstract Hydraulic fracturing fluid are complex mixtures containing high concentrations of salts (up to 330,000 ppm), organic, and metal contaminants. However, little data exist on the potential mechanisms of toxicity of these flowback and produced wastewaters (FPW) on aquatic biota. Juvenile rainbow trout were exposed to either control, FPW (2.5 or 7.5%),

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