.... Spontaneous imbibition, for evaluating wettability alteration, of polysulphate brines into mixed-wet chalk was performed at 90 and 110°C and compared against the recovery performance of formation water and seawater. The solubility tests showed that the salt was easily soluble in both de-ionized water...

.... reservoir characterization imbibition lateral variability upstream oil & gas saturation rock type modelling impact field development reservoir lower shuaiba carbonate reservoir scenario fwl facies shf archie saturation petroleum development oman Regional Geological Setting...

... & gas variation compartmentalization imbibition de-risking fluid compartmentalization interpretation barik formation Introduction The Khazzan-Ghazeer field in Block 61 in Oman is a giant gas-condensate field primarily reservoired in Cambro-Ordovician siliciclastics of the Haima Supergroup...

... According to the physical model of shale water imbibition, a new shale spontaneous imbibition experimental device considering reservoir confining pressure and temperature was designed to quantitatively evaluate the shale water imbibition capacity, as shown in Fig. 2 . The experimental device...

... be generated with several imbibition and drainage cycles by applying desired rules. The scanning curves always stay within the envelope of the bounding curves as a naturally expected behavior. The correlation can be implemented in an optimization process to match the results of laboratory experiments...

... Abstract The fluid fill concept of a complex carbonate reservoir of the Shuaiba Formation has been re-evaluated after 45 years of production. Structural changes post primary drainage resulted in a tilted contact towards the north east and water imbibition into the oil zone in a considerable...

... the Nuclear-Magnetic-Resonance transverse relaxation time (NMR T2) on samples saturated by spontaneous imbibition of oil and brine. The wellbore stability was investigated by analyzing the changes in the NMR T2 distribution of each sample after imbibition sequences. The obtained results demonstrated...

... or a structural tilting after migration occurs, a shallower position of the new FWL involves an imbibition cycle to represent the initial saturation distribution in a 3D reservoir model. The methodology starts at the well level by building drainage saturation height functions (SHFs) typically from core capillary...

... signatures in reference to the paleo-positions of the Wells. The structural evolution and corresponding hydrocarbon charging mechanisms (drainage and imbibition) have influenced the reservoir hydrocarbon saturation in the field from northeast to southwest. The northeast tilting was triggered by Zagros...

... acceleration due to gravity and h is height of the water column. All the capillary pressure curves measured on the 4 samples containing clean sand fall reasonably well into 2 curves, one for drainage and one for imbibition, respectively. It should be noticed, however, that the curves measured on the 2 clayey...

... of the same formation from the same well (1" in diameter × 1.5" in length) before and after spontenous imbibition were measured. The workflow of the permeability assessment is shown in Fig. 2 . The methodology of measuring porosity was based on Boyle’s law and permeability was assessed on a Coretest AP-608...

... Due to the complexity of imbibition behaviour, immature model theory and workflow, the above models were rarely implemented in the well domain and in the reservoir simulation models in the oil & gas industry. In this paper, a unique approach is presented for modelling the core capillary...

... in this region has low viscosity. The performances of viscoelastic surfactant, surfactant imbibition, and coupled VES and surfactant imbibition formulation were evaluated. Experiment results indicated that for the coupled formulation, increased pressure drop caused by viscoelastic surfactant augmented the forced...

... on? In this work, we perform nuclear magnetic resonance (NMR) measurements on highly laminated source rocks which are sequentially saturated by spontaneous imbibition of diesel and 5% KCl brine. We probe the rate and capacity of oil/brine imbibition focusing on the wetting characteristics of the bedding planes...

... the conventional Land formalism for the calculation of imbibition scanning curves and gas trapping is replaced by a more general model allowing arbitrary trapping functions and accounting for the nature of the displacing fluid (oil, water, or a mixture of both). This new approach – which is thought to be necessary...

..., 164 ms and 63 ms for the topmost, middle and lowermost samples of the reservoir respectively. Electrical resistivity and capillary pressure-water saturation were also measured at ambient and reservoir (2500 psi and 85 °C) conditions using a DCI Pc-RI system mimicking drainage and imbibition...

... Brine composition Upstream Oil & Gas OOIP salinity enhanced recovery concentration coreflood experiment waterflooding PPM experiment reservoir connate water imbibition connate water cation wettability divalent cation injection permeability crude oil saturation Oil...

... been undertaken to provide an improved understanding of the water flood recovery and remaining oil saturation distribution within the transition zone by better definition of the scanning kr and Pc curves. Primary drainage, and imbibition from irreducible water saturation were measured for both kr...

... which typically not exceeding 50% of the injected volume. The water imbibition mechanism by capillary forces can help explaining the reason behind the retained water in the shale matrix and the dynamic water saturation re-distribution during the shut-in time. This paper investigates various effects...

... simulation imbibition enhanced recovery sample 3 relative permeability core sample fracture reservoir centrifuge carbonate reservoir capillary pressure fluid dynamics gravity drainage fractured carbonate reservoir fractured core oil recovery permeability fractured reservoir Over...