... the fracture compressibility values acquired by core-flooding experiments and simulation for samples S3-S6. It can be seen that the simulated fracture compressibility (derived from the porosity change with pressure) is on the same order of magnitude as the experimental measurements of pore/fracture...

... time corresponds to a large pore, and the point with a short relaxation time corresponds to a small pore. Experimental Rock Sample and Fluid The experimental core was a plunger sample of 2.54 cm in diameter and 4 cm in length. In order to distinguish oil-water NMR signals in the experiment, CaCl...

... experiments using Longmaxi outcrop in the Sichuan Basin, and five typical fracture propagation modes of layered shale reservoirs were summarized. According to the experimental results, the complexity of fractures can be improved by controlling the product of injection rate and fracturing fluid viscosity...

... Experimental equipment The experimental equipment used in this paper mainly include: SPEC-023 NMR experiment analyzer (9.38 MHz), which was used to measure the T2 and T1 signal of cores; Leica M165FC Fluorescent stereomicroscope; Leica DFC450 camera (100fps, 2560*1920); Fluigent MFCS-EZ injection pump...

... calculated by Eq.(19) is θ 1 =78.5°, θ 2 =82.5° and θ 3 =80.5° respectively, which is reasonable compared with the results measured by Krooss(2002). Discussion The experimental results are in accord with our theoretical analysis. However, it is important to note that, in our experiments...

... was proposed, and some real-world application of modified illustrated some better results. Laboratory Experiments The purpose of in-house experiments was to evaluate proppant transport in complex fracture network system with a special low-pressure experimental device, which is composed of a series...

... (represented by different grain sizes) was established and used to predict the volumetric surface area of a sample composed of three different grain sizes. The procedure for this experiment, the practical criteria and prediction were explained and analysed. Experimentation A calcareous shale core...

... ( Saghafi, Javanmard, and Pinetown 2014 ) and roughness ( Drelich, Miller, and Good 1996 , Li et al. 2013 ). Coal wettability has been studied extensively for coal benefaction processes with most of the experimental work on this topic based on sessile drop experiments or wetting of particles. However...

... and testing their strength using a mechanical arm. A set of experiments was conducted using this equipment. The experimental procedure was to mix up raw granulated bentonite with measured masses of water and poly-vinyl-pyrrolidone (PVP) to act as a binding agent. PVP was shown to effectively aid...

... conference experiment application fracture society of petroleum engineers proppant field application show granule technical specification old hydraulic fracture agent mechanism fiber agent firstly bridge bridge Upstream Oil & Gas degradation curve operation granular agent stimulation...

... isotherm experiment clay mineral desorption isotherm water sorption isotherm Zolfaghari water adsorption Introduction Shale formations are emerging as an important resource of energy in the United States and Canada. These resources are characterized by their low permeability ( Frantz...

... at supercritical conditions, and the fitting correlation is more than 0.99, these results can be found in table 4 to table 6 . For the same set of samples, the experimental conditions of a number of isothermal adsorption experiments were carried out, BET model was used to obtain the net adsorption heat which...

... conditions Figure 5 Fitting of the yield surface on the meridional plane Figure 6 Comparison of the fitting and experimental curves under different conditions Figure 7 Comparison of the results of the finite element method and for the physical experiment Figure 8...

... gases; methane, mixed methane (90 mol%) and butane (10 mol%), and carbon dioxide, considering gas injection into the heavy oil reservoir (Experiment 3). Each experimental condition is summarized in Table 2 . The pseudo composition of the oil phase at the initial condition of each experiment is shown...

... Abstract Applicability of experimental techniques is critical to accuracy of results. In this paper, a comparison was made between nuclear magnetic resonance and mercury injection porosimetry to clarify their applicability in pore structure characterization of tight oil reservoirs. Five tight...

... was manufactured to sustain high-pressure conditions and minimize the absorption of emitted gamma rays. The experimental apparatus is described, and it is demonstrated that 3D images obtained with a grid resolution of 2 × 2 × 2 mm 3 allow clear determination of the fluid flow rate through the core as a function...

... to confirm the simulation results and the micro-seismic fracture monitoring results were interpreted combining with the stimulation results. Physical simulation experiment set up and procedure Rock Sample Preparation The experimental rock samples were retrieved from the shale outcrop in Sichuan...

... permeability to gas and water. EXPERIMENTAL RESULTS OF RELATIVE PERMEABILITY OF COAL TO GAS AND WATER a. Drainage and Imbibition Relative Permeability of GP and GS Coal Samples to Gas and Water In the research, forty-eight drainage and imbibition relative permeability experiments were performed...