... Abstract An experimental procedure was developed to incorporate the mechanisms of Gas-Cycling Enhanced Oil Recovery (GCEOR) phase behavior, IFT change, swelling, viscosity reduction and residual-liquid shrinkage in the presence of porous media possessing propped hydraulic fractures and matrix...

... By the above assumptions, the problem has been reduced to a 2-D single phase flow problem with the gravity being neglected. In either the homogeneous and isotropic domains, the matrix or the fracture system, the pressure distribution of slightly compressible flow can be mathematically modeled...

... Abstract Laboratory evaluation of tight oil production processes requires a unique coreflood apparatus that portrays both the tight rock matrix and fractures—a dual-permeability system. However, with some tight formations such as the Bakken having no available outcrop, full-sized actual cores...

... of fracture closure during shut-in and production periods is modeled by adjusting the fracture volume and fracture conductivity dynamically. Non-Darcy behavior due to high gas velocity in fracture and matrix desorption are considered. The coupled effect of multi-phase flow, gravity and geomechanics...

..., may not be representative of the true reservoir rock flow capacity. Evaluating the in-situ rock permeability, and simulating production, requires sampling not only the matrix, but also the fractures and fissures that contribute to the unconventional rock system permeability. A properly designed well...

...., fractures) and matrix composition with respect to gas accessibility and adsorption. Registration of CT scans (vacuumed and gas-filled) as well as 190 µm-resolution CT-derived gas storage maps with 1.5 µm-resolution SEM mosaics is straight forward for samples with dense features (such as calcite-filled...

... equation oil reservoir co2 injection coupling fracture volumetric strain porosity Symposium Bakken formation permeability Upstream Oil & Gas numerical simulation fluid flow matrix society of petroleum engineers INTRODUCTION Gas injection is an effective enhanced oil recovery...

... matrix flow into a stimulated-reservoir volume (SRV) and/or a finite conductivity fracture. It is shown that when the permeability is a function of the pressure in the reservoir, the production rate increases continuously as the drawdown is increased , and no reversal of productivity is observed...

... be found as an adsorbed phase inside the coal matrix, so how much adsorbed gas can be released at an economical rate will determine the ultimate gas recovery. The Langmuir isotherm has been widely used in industry to describe the pressure dependence of adsorbed gas. However, temperature dependent...

... e.g. fracture length/spacing × fracture permeability, ratio of micro–fracture to hydraulic–fracture permeability or matrix to fracture permeability. In subsequent studies, new analysis equations will be developed based on the intersection point of flow regions. This should further reduce...

... Abstract A fracture-proppant system is used to mimic the interaction between the rock matrix and proppants during the process of fracture closing attributed to pore pressure reduction during hydrocarbon production. Effects of rock type and bedding plane direction are investigated. High-strength...

... in natural fractures and matrix ( Al-Ahmadi and Wattenbarger 2011 ; Tivayanond et al 2012 ). In this paper, we show that bilinear flow in natural fractures and matrix is short and, therefore, it cannot explain the sustainable gradual decline observed in shale wells. Instead, we provide two alternative...

... flow regime matrix source function conductivity hydraulic fracture hydraulic fracturing relative minimum permeability permeability Laplace domain barree-conway model equation non-darcy flow reservoir SPE 167218 Effects of Non-Darcy Flow and Penetrating Ratio on Performance of Horizontal...

... electromagnetic mixing rules to develop a new petrophysical model capable of estimating the water saturation exponent (n) and water saturation (S w ) in heterogeneous reservoirs with mixed wettability. The reservoirs are represented by dual porosity (matrix and fractures or matrix and isolated porosity...

..., resulting in the ability to drill further and faster, while improving the possibility of success of the well completion. bit design oil sand application technology eliminate drill bit wear cutter breakage Canada bit selection Upstream Oil & Gas back bevel matrix-bodied bit operator...

..., and an inorganic matrix are represented directly in the four-porosity system. hydraulic fracturing flow in porous media Fluid Dynamics langmuir parameter fine-scale model Knudsen diffusion porosity type fracture hydraulic fracture inorganic matrix Modeling & Simulation Upstream Oil & Gas...

... (rate + pressure) could help estimate key reservoir parameters (e.g. effective HF half-length) and evaluate flowback performance (e.g. percentage of total inject fluid left in HF and matrix and the speed of HF clean-up). Results from this study is applicable for interpreting 2-phase flowback data from...

... to be active only in organic matter. To capture different transport controls in reservoirs with an overwhelming number of fine pore throats, the models include three different permeability conduit networks including organic and inorganic matrix, and natural fractures. Physical properties contributing to flow...

... of the porosity (or cementation) exponent m in naturally fractured reservoirs represented by dual and triple porosity models. The formulas have been compared with other theoretical models developed previously in the literature. The comparisons are good for the case of matrix and fractures when m f = 1.0...

... = 5.615   B o c t 1 m = 5.615 1.329 1.726 × 10 − 5 1 0.0521 = 8 , 298 , 435.6   f t 3 Now we use the intercept equation to determine the matrix permeability, b s s = 36.96 μ B o L f k m N f y e h...