...-uniform wettability characteristics. Hence, we propose the “mixed wettability” tight sandstone and ” partial wettability” shale respectively, and combine the experimental data and the improved process method to realize the digital core reconstruction of tight reservoirs considering the characteristics...

... facies prospect probability applied geoscience & energy 10 oil sand structural geology petroleum geology economic geology american association hydrocarbon prospect petroleum basin shale depth interval rock physic effective pressure bearing sand pore pressure De-risking hydrocarbon...

... three-dimensional seismic geological modeling technology, the lithology distribution of the 8# coal seam roof in the M* area of the Benxi Formation in the east of the basin was predicted. The coalbed methane roof in this area is mainly composed of limestone and shale, which is consistent with the well...

... The shale oil reservoir of Qingshankou Formation has extremely strong seismic anisotropy (>40%). Core laboratory measurements show that such strong seismic anisotropy relates to the development of bedding-parallel cracks. Bedding-parallel crack density (BCD) is an important “sweet spot...

...). The results are also compatible with a global data set of lab measurements on shales. Because the workflow is calibrated to both isotropic and anisotropic samples, the resulting logs demonstrate isotropy in carbonates as they should. The γ log exhibits a nonlinear growth with illite volume fraction...

... of high gamma formation (HRZ). The Torok formation is comprised of mostly shales, silty mudstone, and medium to fine grained sandstones (Morrow,1985, Herbas, 2009, Houseknecht et al, 2009). The main seismic characterization challenges to identify these reservoirs arise from the presence of permafrost...

... Measurements of dynamic elastic properties of shale exhibit dispersion at seismic frequencies as well as between seismic and ultrasonic frequencies. We point to various possible dispersion mechanisms, including viscoelasticity of bound water in the narrow pores associated with clays and squirt...

... We re-examine rock physics models describing the transition from clean sandstones to shales that incorporate dispersed pore-filling clay in between the two extremes. While attractive conceptual models remain popular (Marion et al., 1992, and Dvorkin and Guiterrez, 2001), our goal is to assess...

... associated with progradation and retrogradation. The composition of organic remains in the sedimentary rocks depends on the prevailing environment during deposition and subsequent diagenetic processes. The biostratigraphic analysis of the shales suggests that the high abundance of planktonic foraminifera...

... is an S-wave based independent seismic-scale pressure prediction from seafloor to deep hot shales. The additional confidence in pressure prediction can be obtained with use of shear-wave based methods when P-wave contrast in shale is weak and S-wave velocities show larger changes in overpressured...

... Unconventional shale reservoirs have gained significant attention in recent years in terms of hydrocarbon reserves and production potential. However, exploration and production of shale reservoirs are still very challenging due to the internal complexity. Aimed at the Irati shale from Parana...

... fracturing economic geology applied geoscience upstream oil & gas reservoir characterization fracture scenario petroleum geology anisotropic scenario anisotropy saturation unconventional reservoir energy 10 international society american association shale symmetry geological...

... association applied geoscience depression thickness basin colorado depression argentina figure 2 upstream oil & gas exploration geophysicist sediment international society drilling shale argentina offshore energy 10 Multi-client seismic data reveal new unproven plays in the northern...

... Estimation of oil recovery in shales with low porosity and permeability is still challenging but critical. Recent reports mainly focus on the reserves and occurrence characteristics of shale oil but with limited understanding in the recovery mechanism of shale oil. In this study, we conducted...

... in building reliable geomechanical models. In the short-term, during drilling and completion phases, it is mandatory to model potential geohazards related with high porosity sands, rock types of different stiffness in shales, sandstones and marls intercalations, as well as in highly creep soluble salts...

... asia government wellbore design wellbore integrity interpretation saudi arabia government fracture pressure transient analysis applied geoscience saudi aramco american association facies international anisotropy shale elisabeth francis shale 2 pressure transient testing hydraulic...

... Explicit formulae are presented for anisotropic parameters for the orthorhombic case of a polar anisotropic body ( e.g. a shale) penetrated by a single set of vertical, rotationally variant fractures ( e.g. joints). upstream oil & gas expression anisotropy american association pa...

... The source(s) of the metal ions in carbonate-hosted Mississippi Valley-type (MVT) lead-zinc (Pb-Zn) ore deposits remain unclear. To constrain the source(s) and assess any potential relationship to the MVT ores, geochemical analyses of organic-rich black shales of the Mid-continent US were...

... inversion information lithofacies prediction international structural geology machine learning algorithm shale artificial intelligence wavelet low-frequency information variation upstream oil & gas reservoir characterization reflection coefficient resolution spectral...

... The Caney Shale in the Ardmore Basin of south-central Oklahoma consists of interbedded shales and siltstones that form hydrocarbon reservoirs. To better understand the elemental composition, mineralogy, and petrophysical properties of the Caney Shale, this work utilizes petrography, scanning...