... A, P 3 w 2 , 3930.6 m, gray conglomeratic coarse sandstone, parallel beddings; B, P 3 w 1 , 4110.3 m, gray glutenite, inclined beddings; C, P 3 w 2 , 4257.1 m, gray fine medium sandstone, torn mud gravel; Where the elasticity modulus E is the slope of the stress-strain curve...

... and surmounted by a sandstone facies, microconglomeratic and clayey. Towards the northwest, Djebel Hirene/Kahal-Tabelbala region, core data is limited to 15 m from a single well (HDKS-1) due to the overall clayey nature of this interval. The Gedinnian includes an aggradation-progradation succession, attributed...

... Abstract Sand onset and sand rate predictions are important in hydrocarbon production to optimize production, increase recovery, and reduce costs and the environmental footprint. Recent laboratory results on Castlegate sandstone from sand production tests in a True Triaxial test system have...

... Abstract Oil-saturated strata of Western Siberia fields are represented by laminated low-permeability sandstone separated by shale layers. Therefore, when designing hydraulic fractures, it is important to create longer propped fracture half-length and provide coverage of oil-saturated layers...

..., regardless of scale; carbonates and grain-laminated sandstones are but two common examples of this situation. The degree of spatial complexity of rocks and its effect on the mobility of hydrocarbons are of paramount importance for the description of multiphase fluid flow in most contemporary reservoirs...

... This study aims at building comprehensively representative three dimensional geo-model on the basis of geostatistics concepts in order to obtain an as accurate as possible distribution of the Meghil Upper Cretaceous carbonate and sandstone reservoir properties and the distribution of the fluids...

... in three categories of coarse-, medium- and fine-sandstones were selected and nearly 1,400 resistivity data were measured at various electrolyte salinities and frequencies in the range of 1,000 to 100,000ppm and 12Hz to 10,000Hz respectively. Overall more than a thousand values of Archie formation factors...

... model. The mechanical properties of the reservoir sandstones were derived from calibration of data obtained from triaxial tests and for the overburden shale layers from acoustic velocities and correlation functions. The compartmentalized geometry was constructed based on seismic data and logging data...

... cos θ r Methodology and Experimental Setup This paper both targeted and focused on the nucleation temperature at which the phase change starts to take place in the rock porous system. The investigation was held with permeable rocks (Berea sandstone and Indiana limestone), featured...

... Abstract This paper presents a detailed study on the effects of evolved CO 2 due to carbonate mineral dissolution, and its ensuing activity, during the preflush phase in matrix acidizing of sandstone reservoirs. Sandstone acidizing in the presence of different rock saturations conditions...

... in Brazilian reservoirs. Brazilian light crude oil, pure CO 2 , and different brine solutions were used to represent the fluids in actual oil reservoirs. The experiments were carried out on Botucatu sandstone samples, with mineralogy determined by energy dispersive X-ray analysis. Coreflooding experiments were...

... the confidence to apply these techniques more widely. Results Bentheimer sandstone Fig. 2 shows the distribution of contact angle measured at the three-phase contact lines identified in the water-wet and altered-wettability (aged) Bentheimer sample. For the water-wet sample the initial saturation...

... Abstract Reservoir characterisation for modelling and flow simulation is done assuming the homogenous nature of the rock. Heterogeneity is overlooked to prevent occurrences of reserve management complexities. Bioturbated sandstone reservoirs are heterogeneous and prominently found in many...

..., and this study is purposed to clearly explain how acoustic velocity and quality factor correlate with porosity, permeability and details internal pore structure in porous rocks. This study employs 67 sandstone and 120 carbonate core samples collected from several countries in Europe, Australia, Asia, and USA...

... data into more representative uniaxial data. The measurements were developed in 5 sandstones and 5 carbonate rocks with a diversified range in porosity and rock strength to obtain results more capable to describe any other set of data. The results of the corrections were then plotted against porosity...

... in the oil-bearing range. The target stratum is Pliocene unconsolidated sandstone with an average burial depth of 450 m. It can be divided into five sublayers from top to bottom ( Xu Wei et al., 2015 ). Shallow water delta deposits are developed in the oilfield. Hierarchic geological modeling methods...

... subramaniyan Reservoir Characterization seismic frequency measurement attenuation deposition Tisato reservoir geomechanics load cell Library laser displacement sensor frequency seismic frequency specimen dispersion axial stress displacement sensor sandstone information triaxial testing system...

... model building sandstone Reservoir Characterization STOIIP calculation reservoir quality shallow marine environment pemberton acoustic impedance machine learning inversion resolution seismic lithofacies gingra bioturbation lithofacies permeability Bioturbating organisms have been...

...Geological case The first case is well from Yamal peninsula Western Siberia. Reservoir is gas saturated sandstone. Principal scheme of reservoir from top to bottom: shale – coal – sandstone – coal – shale – coal – shale. First section of horizontal well across top and bottom of reservoir...

... society of petroleum engineers resistivity sandstone homogeneous interval interpretation lithology Introduction As the log data are the basic and mandatory input for any reservoir evaluation, the assessment of the quality and reliability of log responses is a critical issue for the reservoir...