... experiments available in the literature. Once validated, the model is used to perform numerical experiments demonstrating the effects of transport mechanisms during injection of N 2 and CO 2 mixtures. We evaluate average pressure, breakthrough times and chromatographic separation effects in the presence...

... predictive proxy model prediction operator fracturing materials fracturing fluid data analytic experiment numerical simulation hydraulic fracture proxy model completion optimization Introduction The current volatility and uncertainty in the oil and gas industry is motivating operators...

... Abstract In this paper, we experimentally investigate the possibility of formation damage reduction during leak-off and flowback processes by adding surfactants to the fracturing fluid. The experiments consist of three phases: In phase I, we conduct compatibility tests on surfactant solutions...

... experimental work to account for the presence of kerogen (organic matter) in vapor-liquid equilibrium calculation. Experiments have been performed in this work that show the combined effect of kerogen presence and confinement on oil bubble point. In the current work, kerogen is isolated from a shale sample...

... of A s on the TIP , we conduct a series of imbibition experiments using shale samples of different A s but similar V s at constant temperature. The experiments are performed at T = 23, 45, and 65°C to investigate the temperature effect on the TIP . The experimental correlation between TIP...

... running the experiment. The high-pressure CO 2 cylinder is used for CO 2 injection into the PVT cell. First, we inject a specific volume of CO 2 into the cell at room temperature. Table 4 lists the details of experimental conditions for CO 2 -oil mixtures. The injected mass of CO 2 is calculated...

... properties were measured and input into the modified TOUGH2-EGS model to simulate the experiments, the results from modeling successfully reproduced the experimental results, in terms of temperature profiles, a general fracture morphology, and pressure decay curves. Cryogenic stimulation is proved...

...-puff recovery process. The main experimental flows are shown in Figure 1 and Figure 2 . Core plugs were named and dry weighted (W d ) after being put in the oven for one day prior to conducting the main experiment. As shown in Figure 1 , a core plug was placed in the core container and vacuumed...

... Microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) analyses on the shale samples to characterize the location and size of pores. After evaluation of wettability, we conduct soaking experiments. First, we measure liquid-liquid contact angles for the droplets of the soaking fluids and reservoir...

... Barati experiment pec nanoparticle filter cake nanoparticle system conductivity nanoparticle fracturing materials drilling fluids and materials Upstream Oil & Gas polyelectrolyte complex nanoparticle gel enzyme fracture flow in porous media cleanup proppant pack breaker permeability...

...Result discussion After the spontaneous imbibition experiments, the relationship between weight change and time is used to analyze the factors which influence imbibition of shale matrix. The factors include mineral content of rocks, TOC, porosity, contact angles, fluid types, and temperature...

... exhibited hysteresis with respect to net stress. Upstream Oil & Gas flow rate Reservoir Characterization Fluid Dynamics net stress complex reservoir permeability value experiment permeability measurement experiment porosity correction transducer permeability measurement new steady...

... of osmotic pressure while high salinity makes the clay surface extremely hydrophobic and causes local oil-wetness. flow in porous media pore porosity Upstream Oil & Gas mechanism Williston Basin enhanced recovery Brine experiment saturation sample 4 Oil Recovery kurtoglu imbibition...

... experiments. Due to experimental limitations, both water and oil imbibition tests are only measured for the samples of low and medium A sp values. Table 1 Physical specifications of the prepared OP and Ev samples for the water and oil imbibition experiments Sample Formation Interacting Fluid...

... Abstract Understanding water uptake of gas shales is critical for designing fracturing and treatment fluids. Previous imbibition experiments on unconfined gas shales have led to several key observations. The water uptake of dry shales is higher than their oil uptake. Furthermore, water...

.... Experimentally, four scenarios of core displacement experiments, including waterflooding (Scenario #1), immiscible CO 2 huff-n-puff process (Scenario #2), near-miscible CO 2 huff-n-puff process (Scenario #3), and miscible CO 2 huff-n-puff process (Scenario #4), have been conducted. Theoretically, numerical...

... study ( Makhanov et al ., 2012 ), several spontaneous imbibition experiments were conducted using actual shale core samples collected from Fort Simpson, Muskwa and Otter Park formations, all belong to the Horn River shale basin. This study provides additional experimental data on how imbibition rate...

... The comparison between the predictions with the simulator and experimental results is carried out. It shows that the prediction accuracy to the tricone bit is close to 90% and that there is also a good prediction accuracy to the ratio of a monocone bit. Similar conclusions are drawn between...

...) and (6) , 46 experiments were conducted in which degradation rates were measured as a function of concentrations including Na + , Ca 2+ , Mg 2+ , and Cl − ions at 125°F, 150°F, 175°F, and 200°F. Experimental details including the actual concentrations of ions, temperatures of the aqueous solutions...

... to characterize bubble size and bubble-size distribution in a wide range of injection conditions to show the effects of oil and polymer comprehensively. 2. Methods All experiments were conducted using experimental facilities shown in Fig. 4. The experimental set-up consisted of a transparent nylon pipe (12.6 ft...