... Abstract Laboratory pulse-decay techniques are effective for determining rock permeabilities ranging from 0.01 μd to 0.1 md. However, the measurement time is fairly long, reaching up to several hours to days when testing gas shales because their permeability can be as low as dozens of nano...

... drillstem testing fracture characterization fluid dynamics probability perturbation method transmissivity fractured reservoir flow regime fracture fracture parameter history matching dfn model fracture intensity model parameter algorithm intensity production data realization permeability...

... geology wellbore seismic fluid dynamics resource in place estimate fracture pattern natural fracture stimulation efficiency efficiency productivity interference consideration integration unconventional resource technology conference technology conference fracture montney permeability...

... decline ratio matrix permeability well pair analytical model inter-well communication fracture diffusivity permeability Problem Statement: Inter-well Communication Inter-well communication in tight reservoirs occurs through high-permeability media including extended conductive hydraulic...

... RTA workflow, designed to reduce uncertainty in derived hydraulic fracture properties, is demonstrated using flowback data from MFHWs producing black oil from low-permeability reservoirs in the Montney and Duvernay formations. The workflow includes rigorous flow-regime identification used for RTA...

... event cluster inversion fracture permeability stimulation microseismic event cluster permian basin optimize well microseismic event production data analysis unconventional resource technology conference unconventional reservoir fracture network analytical model case study Introduction...

... Abstract Hydraulic fracturing is an important method to improve the oil and gas production in low and ultra-low permeability reservoirs. A remarkable progress has been made in the technology and materials. However, the existing conventional hydraulic fracturing technology faces problems...

... orientation, injection layer permeability, and distance between the fault and hydraulic fractures on the induced seismicity. The results showed that one North-South-oriented fault was activated twice after the sequential fracturing operations of three horizontal wells in 2015 and 2016. The M w 3.9 earthquake...

... society of petroleum engineers shale play mb formation core sample fracture permeability injection pressure contact angle application co 2 wettability oil recovery recovery factor bakken formation unconventional reservoir Introduction A revolution of unconventional reservoirs...

... the production data before the shut-in period, we had to account for the reduction in oil and gas relative permeabilities due to water blockage. This was done by using multipliers of interblock fluid-flow transmissibility near the matrix-fracture interface. We used these transmissibility multipliers as matching...

... to viscous flow, diffusion can play a significant role in gas transport especially in ultra-low permeability reservoirs. An easy-to-use dual mechanism approach that accounts for the contribution of both Darcy flow and diffusion to apparent permeability in tight sandstone and shale formations is developed...

... inter-pair communication relative permeability production rate pvt measurement fluid dynamics numerical simulation upper well lower well lower well upper well saturation shale gas reservoir simulation upstream oil & gas communication production data semi-analytical model hydraulic...

... of a matrix block. Sensitivity was performed using a leaner and a richer gas composition, as well as two levels of permeability (50 and 100 nD). This allowed detailed investigation of time and location of occurrence of liquid dropout through saturation profile maps. Due to molecular partitioning, the phase...

... Abstract The purpose of this paper is to quantify the importance of lateral heterogeneity of permeability and porosity when modeling horizontal, multi-fractured tight unconventional wells exhibiting layer-wise fluid heterogeneity. Fluid and petrophysical properties are taken from the Eagle Ford...

... on the macroscale wettability of shales. According to the results, the presence of connected organic sub-layers lowers the destructive impacts of spontaneous water imbibition on hydrocarbon permeability. Furthermore, the intrinsic permeability, tortuosity, wettability, and initial and residual saturations are among...

...) to a fully coupled fluid flow-geomechanical model that considers the far field stress stemming from the overburden, sideburden and underburden of the shale reservoir in an optimized simulation grid. The model evaluates the effects of depletion, of fracture closure and of permeability change using...

... Eagle Ford shale gas injection huff-and-puff gas injection equation composite system fracture Oil Recovery compressibility reservoir shale oil reservoir complex reservoir permeability Introduction Exploitation of shale reservoirs has transformed the energy landscape of US and Canada...

...-fissure fracture network, tree-like fracture network, radial multiple fracture network, and mutually orthogonal fracture network. It is found that the pressure derivative reaches constant level, no matter what the fracture geometry is. Furthermore, the reservoir permeability of field examples from actual...

... was measured with x-ray diffraction (XRD), and total organic carbon (TOC) and thermal maturity were determined with a SRA (Source Rock Analyzer). Porosity was also measured under as-received conditions and cleaned and dried conditions with a helium pycnometer. For each sample, its initial baseline permeability...

... observable on log-log crossplots of porosity vs. true resistivity. The analysis has been used in the past primarily for determination of water saturation. However, the plot has been extended throughout the years for evaluation of other parameters of practical importance including, for example, permeability...