...URTeC: 3718137 The Fundamental Role of Electrostatic Forces within Pore Systems and Their Effects on Resource Evaluation and Reservoir Performance: Capillary Forces Theory Robert Lee*1, Per K. Pedersen1, Thomas F. Moslow1, Roberto Aguilera2 1. Geoscience, University of Calgary, 2. Chemical...

... Abstract Techniques such as horizontal drilling and hydraulic fracturing have helped in exploitation of unconventional shale reservoirs. However, a drawback of hydraulic fracturing is that it results in forced imbibition of frac-water into the pore system of the organic shale matrix. This can...

... in porous media reservoir characterization reservoir surveillance fluid dynamics brine crude permeability measurement upstream oil & gas pore system experiment plug production monitoring permeability value porosity artifact society of petroleum engineers complex reservoir injection...

... saturations and NMR relaxation times using a 12 MHz NMR spectrometer. The study evaluates affinity of an unconventional rock sample to oil and/or water through spontaneous imbibition in the ambient condition. The measurement helped determine wettability by partitioning total pore system into oil-wet and water...

... to a laboratory facility, affects the contents of the pore system. Some of the in-situ fluids in the pore space gets volatilized and show up as void space in laboratory measurements. Standard practice calls for treating this void space as previously occupied by oil. Therefore, estimates of hydrocarbon filled...

... sorbed and non-sorbed hydrocarbon volume explaining the high water cuts in the Permian Basin stratigraphy; and additionally may indicate sweet spots in pore systems in different parts of the rock compared to alternatively derived saturations. Results/Observations/Conclusions: The final piece...

... of the various pore systems in the shale formations and the bulk volume of the fluids held within these different pore systems helping us in identifying the sweet spots in the unconventional play studied. 2D NMR T1-T2 maps have been collected for preserved Eagle Ford core samples in dry and saturated...

... Abstract Connectivity of the pore system is crucial for production of hydrocarbons from unconventional resources. In shales, pore throats critically control and limit permeability. Even if larger pores are the dominant pore size, small pores throats could ultimately control the access...

... slip effects for gas flow. production control enhanced recovery Reservoir Surveillance complex reservoir bubble point pressure Upstream Oil & Gas cumulative gor mechanism production monitoring PVT measurement modeling Pore System pore oil release rock model composition...

... reconstruction algorithm parameters. The reconstruction algorithm directly recreates the nanoscale pore spaces associated with both interparticle and organic matter pore systems, and is constrained by comparing pore size/shape distributions of two-dimensional cross-sections of the reconstruction to those imaged...

... Summary Hydrocarbon storage mechanisms in organic rich mudstones are complex systems which are affected by intricate depositional and diagenetic processes. The in-situ pore system is a result of the combined processes of inorganic porosity evolution via compaction and diagenesis, and organic...

... quality. Only considering the organic and inorganic pore systems brings into play many more questions regarding their respective contributions to oil production, in the early and late stages, and their relationship with potential formation water production. The NMR T2 distribution combined with laboratory...

... on the imbibition two-phase flow relative permeability and capillary pressure behavior and hysteresis trends among the analyzed samples. The data obtained from DRP provided information that can enhance the understanding of the pore systems and fluid flow properties in tight formations, which cannot be derived...

... unconventional shale reservoirs are not necessarily analogous. In this study pore system characterization was achieved using focused ion-beam scanning electron microscopy (FIB-SEM) and Avizo Fire™ image segmenting software. We focused on samples from the B chalk, which is the primary landing zone for horizontal...

... with organization increasing somewhat with increasing organic matter size. Reservoir Characterization resolution segmented organic matter diameter shale gas nanometer resolution organic matter complex reservoir Pore System porosity organic region Upstream Oil & Gas heterogeneity Curtis...