... the upper part of Kujung buildup produced a penetrative karst system, which can be observed from different well locations (west, central, and east). Despite overall Kujung reservoir has relatively low porosity-permeability, karst and dolomite provide enhanced porosity-permeability intervals. Evidence...

... rutger university reservoir characterization hydraulic conductivity environmental science journal porosity geophysics near-surface geophysics sandstone grunewald newark summary falzone On the importance of rock physics for near-surface geophysics: Focus on NMR Kristina Keating*, Department...

... in the rock framework or the wave scattering of the ultrasonic measurement. The velocity-porosity relation caused by the pressure variation significantly differs from the relations accounted for interparticle pores, vugs, or micropores, further validating the model. The model provides insights into bridging...

... unconventional reservoir porosity american association abstract mudrock exploration geophysicist salinity Petrophysical evaluation is fundamental to geologic understanding of the basin, resource assessment, and development. We focus on some of the major challenges to the petrophysical evaluation...

... archie conductivity experiment log analysis saturation exploration geophysicist well logging shrinkage calculation applied geoscience equation evaporation energy 10 resistivity estimation correction upstream oil & gas society reservoir characterization porosity american...

... between new and existing wells. upstream oil & gas co 2 subsurface storage reservoir simulation enhanced recovery gas injection method reservoir characterization exxonmobil upstream oil formation figure permeability porosity earth modeling field climate change american association...

... have developed models based on effective-medium theories and triple-porosity equations in the acoustic case, to simulate the response to total and soft (crack) porosities and clay content. The results show that these properties play a significant role. Then, a 3D rock-physical template is built...

... dispersion effects and to model the low-frequency fluid saturation effects in rock-physics studies. In the process, we first reversed-model porosity from V P using the Vernik-Kachanov model, assuming effective stress-dependent velocity and saline brine properties. Then we use the Mavko and Jizba model...

... the reservoir is of sufficient magnitude to dominate any primaries from the deeper reservoir sequence. This also explains why previously deployed linear methods have failed. inversion wavefield porosity separation reservoir characterization exploration geophysicist energy 10 china international...

... approach on an idealized synthetic reservoir model representing a two-dimensional clastic reservoir with a high porosity channel saturated by oil within a non-permeable shale background, with two wells, an injector and a producer. We assume that 500 models are available from geostatistical simulations...

...) depth, which will be in the lower part of the Wilcox Formation or below. Although the Wilcox is expected to be mud-rich in the current study area, we expect to find thin sandstone packages, which we can fracture. The Wilcox sandstones at this depth are expected to have <= 10% porosity with 0.1 md...

... and the stratigraphic configuration of stacked parasequences. Petrophysical and property models show that lower values of porosity and higher value of water saturation are associated with brittle, calcareous-rich lithologies and rock types, and higher values of porosity and lower values of water saturation...

... Neutron porosity plays an important role in formation gas content, reservoir collectivity, and lithology evaluation, and is generally measured under bare-eye conditions using conventional chemical source instruments. In the actual production process, due to long time development, formation...

... of industry and research is needed to advance the implementation and resolution of promising sites for CO 2 injection in the tri-state region. upstream oil & gas climate change reservoir characterization saline storage characterization resource characterization porosity co 2 consol...

... Presence of chlorite in deep-water sandstones is well-known, but the ability of this chlorite to preserve porosity through quartz cement inhibition largely remains a topic of speculation. This case study examines samples from a shallower lower temperature (1.7 km and 90°C) and a deeper higher...

... porosity and high pore pressure (more adsorbed gas) exhibit the low P-impedance and low Vp/Vs ratio characteristics. We also demonstrate the developed methodology can better interpret the sonic logging data of a gas shale reservoir, SW China. upstream oil & gas shale oil shale reservoir...

... maturation maturity exploration geophysicist upstream oil & gas geochemical characterization evolution structural geology kerogen porosity applied geoscience seismic assessment richness moduli expanded abstract reservoir characterization international american association...

... network Samples The studied samples were collected from the Yanchang Formation of the Triassic at the southern Yisan slope in Ordos Basin, northwestern China, where tight oil in this block has good resource prospects. It is a typical terrestrial sedimentary low-porosity and low-permeability tight...

... unit spanning throughout much of the Appalachian Basin. There are four main plays within the Oriskany: the Doc combination traps play, Dop updip pinch-out play, Dho fracture play, and Dos structural play. The focus area of the geomodel is within the Dho play, where fracture porosity contributes...

... Little Knife field is productive from porous, dolomitized, Mississippian Mission Canyon Formation strata, from Glenburn (lower reservoir porosity), Mohall (middle reservoir porosity), and Sherwood (upper reservoir porosity) subintervals (Figures 1 and 2). The reservoir is trapped within...