... 2019); and it is projected nearly 90% of natural gas production will be from the shale gas and tight gas reservoirs in the United States by 2050 ( EIA 2019 ). The great success of the shale gas industry in the U.S. motivates many other countries to tap into shale gas resources, including China, Canada...

... used in conventional reservoirs such as droplet, film or transient multiphase flow models are also applied with modifications in unconventional gas reservoirs. However, none of these models show great success when applied to inclined and horizontal wells in shale gas reservoirs. This is due to the fact...

... numerical inversion. Pseudo-time (for gas reservoirs) is iterative and has demonstrated issues with accuracy, particularly in stress-sensitive reservoirs. In this work, we present a new, practical semi-analytical model which provides a direct time domain solution using the succession of steady-states method...

...Gas transport mechanisms in micro fractures Pressure varies in micro fractures with the aperture of nano-micro scale distribution 2 , 3 , 4 , 9 , 10 , 11 during the development of gas reservoirs. 12 , 13 The typical value of Knudsen number ( K n) ranges from 0.00005 to 2. 14...

.... Material Balance Equation (MBE) is a simple but convincing tool in that it eliminates the assumptions lying in the flow equations. This paper seeks to use the MBE technique to analyze early-time two-phase flowback data in shale gas reservoirs. Diagnostic plots from field production data show an immediate...

... in tight-shale gas reservoirs, Nobakht and Clarkson (2012a) assumed t ehs to be ¼ for constant-rate flow and ½ for constant-flowing pressure ( Nobakht and Clarkson 2012b ). Abstract When it comes to forecasting production from shale plays that are subject to multistage hydraulic fracturing, most...

... reservoir gas reservoir production history realization initial ensemble fracture half-length fracture system fracture model parameter algorithm characterization hydraulic fracture parameter ensemble fracture parameter Introduction Shale gas reservoirs with low permeability rock matrix...

... of slabbed core, 22 core plugs and their accompanying cuttings), this study provides a roadmap to fully characterize the fluid storage and transport properties of fine-grained tight oil and liquid-rich gas reservoirs. We demonstrate that pore structure, large- and fine-scale (cm-size) permeability...

... fractures and pre-existing natural fractures. Upstream Oil & Gas hydraulic fracturing diagnostic plot Horn River Basin Dehghanpour reservoir shale gas reservoir production data expansion free gas shale gas gas production flowback data volumetric analysis fracture society...

... Abstract Unconventional gas reservoirs have complex storage and transport properties that are difficult to characterize and are dynamic. The large internal surface area of nano-scale organic pores gives them the capability to store adsorbed gas along with free gas, with the amount of free gas...

... and confinement effects be important. In general, this method can be used for inclusion of different pressure-dependent fluid and rock properties and processes in the analysis of shale gas reservoirs. Drillstem Testing Fluid Dynamics flow in porous media Upstream Oil & Gas pseudopressure complex...

... concepts and technology in a deep tight gas reservoir seen as non-commercial with vertical completions. An offsetting directional well provided net pay and permeability estimates based on production logs, well test, and RTA (rate time analysis). Design of this well focused on stimulation technology...

... i p i ∫ p b p p μ g z dp Incorporating this transformation completely linearizes the spatial portion of Equation (1) (see Equation (3) ). Abstract Due to the recent advances in well design and production techniques, tight/shale gas reservoirs have...

... fracturing are the key technologies that allow commercial production from tight oil and gas reservoirs. However, rigorous analysis of production data from these reservoirs requires incorporation of the impacts of stress-dependent permeability and multi-phase flow. Changes in the stress state of the system...

... Horizontal wellbore drilling and hydraulic fracturing technologies have become standard development practices in unconventional gas reservoirs. In order to tap into the full potential of gas shale reservoirs and to produce them economically, it is essential to optimize not only the locations of hydraulic...

... of permeability of unconventional gas reservoirs, such as shale gas. Such corrections are necessary for deriving both accurate estimates of reservoir and hydraulic fracture properties from rate-transient analysis and for developing accurate long-term forecasts. Some shale gas reservoirs are unique...

... upstream oil & gas pressure transient analysis pressure transient testing gas reservoir production data negative intercept transitional period geometry linear flow reservoir pressure drop wattenbarger interpretation early linear flow fracture permeability compound linear flow flow...

... (VSD). The VSD has been shown in the past to be useful for the evaluation of conventional and tight gas reservoirs. However, this is the first paper in which the method is used to also include shale gas and CBM formations.. Results indicate a total gas endowment of 70000 tcf, split between 15000 tcf...

... compared with factual information from the Deep Basin. The conclusion is reached that updip water blocks provide good seals in the Deep Basin. The simulation also confirms that special completion and stimulation practices are required in order to produce gas at economic rates from tight gas reservoirs...

... Abstract Productivity in deep-basin tight gas reservoirs can be improved significantly by natural fracture enhanced permeability. Therefore, deviated and horizontal wells are often drilled to intersect highly fractured formations. Unfortunately, fractured reservoirs are highly heterogeneous...