... recovery by up to 84% and the oil recovery by up to 227% per spontaneous imbibition in the amott cells - all tested with Wolfcamp Cuttings and Outcrop samples and crude oils from the Wolfcamp-A and B. As additional observation, the selected Nano-Surfactants showed general trends to lower emulsification...

... Abstract The objective of this work is to conduct pore-scale analysis of the pore systems in an Eagle Ford (EF) outcrop sample and a Lower Eagle Ford (LEF) sample from a producing interval in the subsurface. After characterization, we estimate bulk transport properties (such as tortuosity...

.... Tight outcrop plugs (0.01 mD < k < 10 mD) were thoroughly cleaned, and dried before porosity and absolute permeability measurements. Centrifuge air-brine primary drainage P c measurements were conducted up to (i) 125-130 psi in a conventional equipment (up to 3200 RPM) using stock brine, (ii...

... Abstract Jabal Hafit consists of Tertiary outcrops that give insight into stratigraphic sequences and regional reservoirs in the Middle East. This study examines outcrops from various strata in the Rus, Dammam, and Asmari Formations varying from Early Oligocene to Eocene in age...

... at given time may not extend the entire length of the finished bar which adds to the difficulty of correlating wells. However many studies involving outcrops gives insight on the internal shape and geologic distribution ( Deschamps 2011 , Labrecque 2011 , Musial 2013 , Nardin 2013 ). Abstract...

... fractures in the US shales in the last 20 years. The evidence of natural fractures from either outcrops or subsurface data, i.e. core, borehole images, or other data is summarized for each studied shale. The latest studies show that the hydraulic fracture propagation can be strongly influenced by existing...

... interpretation tools to identify different elements of a deepwater system and to correlate features observed on borehole images to those exposed at outcrops that are analogs for these deposits. In addition, borehole images are used to verify structural interpretation near the well, which is particularly valuable...

... by the upscaling process for sector and field-scale reservoir simulations. It is therefore important to identify those situations in which subseismic structures can introduce significant departures from full-field flow predictions. Using exposures of Jurassic carbonate outcrops near the village of Amellago...

... experience in measurements/ research methods for developing a digital model of an oil/gas reservoir based on an outcrop study. Another objective is to establish a hands-on training opportunity for professionals/ students to learn the process of rock based reservoir model building. Field camps were conducted...

... be ignited by surface fires near an outcrop, lightning strikes, human activities, or spontaneous combustion of coal ( DeKok, 1986 ). For example, in Indonesia, forest fires that occurred between 1997 and 1998 ignited hundreds of coal fires at outcrops ( Brown, 2003 ). In Centralia, Pennsylvania, a coal fire...

... of bituminous sandstones. The sedimentological study of the McMurray reservoir, based on outcrops and subsurface data (cores, well logs, seismic profiles), has been undertaken along a 150 km north (distal) -south (proximal) transect. Facies analysis permits to constrain depositional environments within...

... Abstract Laboratory measurement of permeability using a Hassler cell is the industry standard; however, consistently removing un-disturbed rock samples from friable outcrops is difficult. Al-though conventional surface-sealing minipermeameters have been developed as an alternative...

... have researched methods whereby field geologists studying outcrops and modern depositional environments can collect and display their data in the same 3D interpretation environment. This enables, for the first time, the direct use of geological analogs in construction of 3D reservoir models...

... Abstract Spatial variations in petrophysical properties have been described for interwell scale outcrop analogs to subsurface reservoir facies in the marginal marine upper Almond formation near Rock Springs, Wyoming. The objective of this study was to determine interwell scale lateral trends...

... Abstract Well log, well test, and seismic data provide excellent structural and stratigraphic information on subsurface reservoirs, but may not be able to resolve small-scale vertical and lateral attributes which may control oil or gas production. Outcrops can provide this important information...

... Abstract Permeability data from Permian dolomitized shallow-water platform carbonate outcrops in West Texas and New Mexico document extreme, short-range variability, vertical inter-bed average permeability contrasts, 140–180 ft [42–54 m] lateral periodicities, and up to 2,700-ft [810-m...

...Outcrop Data Abstract Deep-water reservoirs composed of thin-bedded deposits or thin-bedded deposits with subordinate channel complexes have been penetrated throughout the Gulf of Mexico. These reservoirs are problematic to evaluate because conventional petrophysical and geophysical data...

... response of the regional natural fracture system that controls reservoir productivity. Fracture characteristics were obtained from outcrop studies of Frontier sandstone at five locations in the basin. Fracture characterization involved construction of detailed fracture network maps of outcrops...

... Abstract A complex fracture system in a formation with low matrix permeability was evaluated to provide data that could be used in fluid flow and contamination migration modeling. Outcrop and well measurements and observations were used as the basis for this study. To determine fracture...

... Abstract Our objectives are to study analogous outcrops and subsurface cores to test the aptness of outcrop characteristics to subsurface reservoirs and to determine whether sedimentologically defined geologic units are useful in modeling flow units. The approach involves characterization...