...-Darcys. This paper proposes an alternative pulse-decay technique that offers accurate permeability measurements within a considerably short time frame. A radial-flow pulse decay method with a new experimental design is developed, which employs two gas reservoirs of the same volume and two pressure...

... 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...

... Abstract A model for gas transport in micro fractures of shale and tight gas reservoirs is established. Slip flow and Knudsen diffusion are coupled together to describe general gas transport mechanisms, which include continuous flow, slip flow, transitional flow and Knudsen diffusion...

.... 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...

... 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. shale gas drillstem/well testing adsorbed layer thickness nanopore correction factor complex reservoir...

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

... 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...

... 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...

... insight into the value of micro-seismic data when integrated in a rigorous production history matching workflow. machine learning Artificial Intelligence shale gas DFN model Upstream Oil & Gas information fracture half-length complex reservoir gas reservoir model parameter algorithm...

... 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...

.... Directional Drilling Upstream Oil & Gas liner stimulation drilling operation gas reservoir hydraulic fracturing spearhead proppant frac packer society of petroleum engineers spe 167195 frac sleeve MPa fracture frac energy upstream deep carbonate gas reservoir coil reservoir CARBONATE...

... Abstract Due to the recent advances in well design and production techniques, tight/shale gas reservoirs have received considerable attention. At the early phase of development of these reservoirs, fast analytical models are attractive since data are limited and a large number of sensitivity...

... Abstract Horizontal wells and hydraulic 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...

... Abstract 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...

... (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...

.... (2009) and Handwerger et al. (2011) for recent discussion of non steady-state techniques which are more common for unconventional gas reservoirs. For fracture conductivity, the procedure typically involves measurement of flow in the direction of an induced fracture in a core for unpropped...

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