... benefit to compute brittleness in case of limited availability of mineralogical data ( Jin et al. 2014 ; Heidari et al. 2014 ; Lai et al. 2015 ). In past few years, extensive research has been done for accurate determination of rock brittleness ( Table 1 ). However, no standard measurements have been...

...-dimensional (3D) geocellular arrays to determine elastic and density properties for the PEM embedded in the commercial reservoir simulator. Ill-posed dry elastic and density property models are considered in a field case where the seismic inversion and petrophysical property model constrained by seismic...

..., that the main reason of oil wetness of carbonate rocks is adsorbed components from crude oil. Although progress has been made in determination of oil components, which have a tendency to react with carbonates, carbonate reservoirs development still remains challenging. Hence, in this study we investigated...

... Flowback analysis is an effective means of assessing and quantify the fracture cleanup process. It is a systematic approach of analyzing fluid for polymer returns after a fracture treatment. The return polymer concentrations are determined as a function of time or flowback volume. Flowback...

... saturations with in a representative elementary volume (REV). Determination of the residual oil saturation of a reservoir is a key parameter for reserve assessment and recovery estimates. Further, reliable S or data is important for investigation of potential incremental recovery under Enhanced Oil...

... wettability equilibrium contact angle measurement experiment angle measurement surface roughness interfacial tension artificial intelligence interaction injection bubble size co 2 dependency determination reservoir society of petroleum engineers Introduction Carbon dioxide (CO2) emission...

... geology climate change complex reservoir subsurface storage sample cell air emission shale gas upstream oil & gas excess sorption experiment sorption experiment co 2 setup determination black shale shale procedure reference cell van hemert manometric setup carbon dioxide helium...

.... This way a part of treatments can be omitted. drillstem testing formation parameter mean permeability evaluation pbu drillstem/well testing afterflow operation determination spe 142931 unconventional gas reservoir complex reservoir gas reservoir fill-up operation fill-up procedure...

... was taken while reassembling the sensor to keep the same spring load and therefore the same geometric factor determined previously. To ensure the spring load of the sensor remained unchanged, the oil viscosities determined from the sensor for oil A were compared with those from a Brookfield DV III...

... wellbore. The experimental results were compared and confirmed by numerical simulation through finite elements using a commercial software — ANSYS™ ( ANSYS, 2007 ), and analytical calculations. The stress contrast at the onset of the breakout failure, determined from the experimental results, agreed within...

... reservoir pressure estimation and determination of fluid gradients. Supercharging and/or loss of seal during formation pre-tests due to rugosity of stressed/damaged borehole surfaces, is an obstacle for reliable pressure measurements while using conventional formation testers methods; therefore fluids...

... measurements provide mainly lithology independent detailed porosity and offer a good evaluation of the hydrocarbon potential. Integration of NMR logs, other open hole logs and SCAL minimizes uncertainties in the determination of formation porosity, permeability and capillary pressure curve. This paper focuses...

...-phase flow requires the determination of the functional relationship between capillary pressure, relative permeability and saturation. The injected gas moves to the top of the formation below the cap rock due to gravity and density differences. Therefore, the ability of a cap rock to seal fluids...

... is that none of the methods considers multi-phase flow behavior. The determination of hydraulic units based on the solution of multi-phase flow equations and the vertical equilibrium concept seems to be more appropriate and it is generally applicable. In this way it is not only possible to consider...

.... It has been a challenge for years to identify the flow patterns and predict the frictional pressure losses through circular pipes. Even less is known for annular geometries. In this study, a mechanistic model is developed in order to determine the frictional pressure losses occurring during flow through...

...: 1) Is the bubblepoint pressure of the formation water equal to the critical desorption pressure of the coal? and 2) Could a sample of water taken under appropriate conditions be removed from direct contact with the coal in order to make the determination? The affirmative answers to both...

... Abstract The measurement of true formation resistivity (Rt) in order to determine fluid saturations, has resulted in the development of a wide variety of wireline and logging while drilling (LWD) measurement systems. These devices are generally treated as independent systems when determining Rt...

... specifically, we show how those approaches enhance the convergence of the inversion process towards the solution. sensitivity information selection electrode spe 78350 sensor upstream oil & gas artificial intelligence reservoir determination characterization case 1 porosity time-lapse...

... Abstract The compressibility factors for the gas and liquid phases are not directly measurable during a PVT-experiment. Empirical correlations or EOS give just rough estimates. This work presents a method for determining both compressibility factors from volumetric measurements...

... malfunctions were identified and remedied, processing methods were upgraded. Laboratory procedures were revisited, and NMR core measurements were complemented with additional, independent core analyses. Whereas the initial emphasis was on "effective" porosity determination, NMR logs and core measurements...