... in the virgin zone, residual hydrocarbon saturation, and permeability from borehole geophysical measurements. This method combines the numerical simulation of well logs with the physics of mud-filtrate invasion to quantify the effect of petrophysical properties and drilling parameters on nuclear and resistivity...

...M. Yousefi; H. Dehghanpour Summary The two-phase flow of immiscible fluids in porous media has been studied for a long time in different disciplines of engineering. Relative permeability ( k r ) is one of the constitutional relationships in the general equation governing immiscible displacement...

... to the injection of the vapor phase may significantly alter the fluid flow performance and behavior, as represented by the relative permeability to fluids in the formations. Therefore, in TEOR, the relative permeabilities can change with a change in temperature. Also, there is no model that accounts for the change...

... learned from more than 50 years of experience are summarized. The La-Sa-Xing Field in the Daqing Field Complex contains three types of reservoir sands: Type I sand with high permeability, Type II sand with medium permeability, and Type III sand with low permeability. Polymer flood was studied...

... higher dosing of polymer to make up for the lost viscosity and increases operating costs. Polymer precipitation in the reservoir may also lead to loss of reservoir permeability. Literature surveys and preliminary laboratory studies showed that polymers with acrylamide-tertiary-butyl-sulfonic acid monomer...

... represent the largest fractures using an embedded discrete fracture model (EDFM) and account for smaller ones using a dual-porosity, dual-permeability (DPDK) idealized representation of the fracture network. The hybrid EDFM + DPDK approach uses consistent discretization schemes and efficiently simulates...

...). It is worth noting that a high-permeability zone (HPZ) will be formed by long-time waterflooding and particle transport. The HPZ radius will be greater than or equal to the DIF half-length because the waterflooding pressure can move particles but not necessarily expand the fracture. The point source function...

... upstream oil & gas enhanced recovery thermal method spe reservoir evaluation gridblock permeability experiment reaction combustion steam-assisted gravity drainage reservoir geomechanics deformation thermocouple injector reservoir simulation europe government numerical simulation united...

... chemical flooding methods drilling fluid chemistry spe reservoir evaluation drilling fluid formulation reservoir simulation concentration permeability polymer concentration oil recovery paper salinity flow in porous media drilling fluid selection and formulation production control viscosity...

... monitoring thermal method paper application modeling united states government experiment production control combustion in-situ combustion porosity permeability moore canada government europe government Carbonate reservoirs contain a significant portion of the known global oil deposits...

... correct for magnified permeability, shortened half-length, and magnified wellbore storage coefficient. In conclusion, the FLLM model is established to monitor FLL, and alert engineers to remove liquid loading on time to prevent water from suddenly rushing into a wellbore and causing gas wells abandonment...

...Brenda Azuara Diliegros; Roberto Aguilera Summary This paper develops a method for estimation of rock fabric number (RFN) from well logs in unconventional tight oil carbonates with permeability less than 0.1 md. The objective is to investigate the oil potential of a Middle Cretaceous tight...

... evaluation reservoir permeability reservoir characterization hydraulic fracture heterogeneity pressure transient testing dfit-fba pressure transient analysis permeability technology conference usa fracture stiffness reservoir heterogeneity homogeneous reservoir reservoir geomechanics fracture...

... and permeability) of limestone samples from the Mupe Member, composed of lacustrine microbialites from the Upper Jurassic, part of the Purbeck Group lower portion. These limestones are a partial analog of the Brazilian presalt Aptian carbonates, the most important oil reservoir in Brazil. These reservoirs present...

... of different controlling factors—wettability, permeability, interfacial tension (IFT), and heterogeneity—on CDC were investigated. This review analysis indicates that CDC in carbonate rocks is broader as opposed to sandstone rocks. This is because of the presence of micropores, large pore size distribution...

..., such as permeability and skin factor, and the volume of recoverable oil. In this context, this study proposes an approximate analytical solution for the pressure behavior during a water injectivity test on a multilayer reservoir considering multiple injection flow rates. The accuracy of the proposed solution...

...N. Alimohammadi; M. Pooladi-Darvish; B. Rostami; M. Khosravi Summary Many of the naturally fractured carbonate reservoirs of the Middle East exhibit low natural-depletion recoveries. The reason is that most of their oil reserves are stored in the low-permeability host rocks and are left behind...

... cutoff reservoir characterization reservoir facies permeability saturation mud-supported matrix upstream oil & gas log analysis correlation resistivity miocene carbonate porosity facies matrix carbonate facies cementation factor Mumbai offshore basin is located on the western...

... & simulation matrix reaction compressor air injection spe reservoir evaluation engineering fractured reservoir paper mexico government drillstem testing enhanced recovery permeability porosity implementation fracture plug wellbore experiment A challenge was faced by Petróleos...

... of flow regimes observed for each test (flow/buildup, F/BU) period; (b) extract estimates of reservoir permeability and hydraulic fracture properties; and (c) study the evolution of these properties with each subsequent test. An MFHW, the Amungee NW-1H, completed in the Velkerri B shale in Australia...