... the asphaltene impact in a major oil field in GoM. The goals of the study were to: a) Define the Asphaltene Precipitation Envelope (APE) using blends of reservoir fluid and injection gas, and b) Measure permeability reduction due to asphaltene precipitation in a core under gas injection. To properly analyze GI...

... a unique opportunity for produced gas huff-n-puff in shale oil reservoirs. However, the injection gas compositions found in literature are oversimplified (e.g., methane, ethane, or their mixtures), and the dominated production mechanisms, with or without full miscibility between the oil and the injection...

... be much longer for F2F than HnP, depending mainly on the fracture spacing and matrix permeability. enhanced recovery drillstem testing equation of state flow in porous media pvt measurement drillstem/well testing dimension numerical dispersion dpm injection gas diffusion coefficient...

... asphaltenes challenged accurate measurement of liquid phase density and viscosity, as capture and analysis of a representative sample was very difficult. A knowledge of asphaltenes phase envelope for mixtures of reservoir fluid and injection gas proved to be invaluable. A robust gas EOR PVT database...

... to construct the composition path from the injection gas to the initial oil where all the intersecting key tie-lines must be identified. Calculation of these intersecting tie-lines requires a series of special negative flashes, which allow not only phase fractions outside the physical interval [0, 1] but also...

... less than 3 hours to determine MMP. MMP results using the RBA typically produce higher values than slim tube tests but fall within a 200 psi difference ( Farzad and Amani, 2012 ). Absence of a porous medium in the RBA setup, small injected gas volume relative to the oil volume and short contact time...

... Abstract Slimtube measurement is one of the standard experimental techniques used for determining the minimum miscibility pressure (MMP) of an oil and injection gas system prior to the initiation of an enhanced oil recovery (EOR) project. It is preferred because it involves actual fluid...

... composition path low-temperature oil displacement co 2 injection gas bsb-q oil displacement displacement efficiency tie line high displacement efficiency displacement simulation three-phase behavior diagram upstream oil & gas oil displacement px diagram three-phase region Introduction...

... injection recovery efficiency oil recovery injection gas spe 89360 saturation enhanced recovery experiment reservoir fluid upstream oil & gas oil saturation coreflood displacement reduction production gas pvt measurement relative permeability reservoir pressure gas injection method...

... pressure pvt measurement mpa saturation pressure reservoir fluid ch 4 concentration mmp weyburn reservoir fluid impure co 2 pure co 2 chemical flooding methods gas injection method pressure solvent concentration injection gas weyburn reservoir effect canadian petroleum technology spe...

... injection miscibility indicator injection gas fluid dynamics matrix block bara system pressure displacement front gas injection method upstream oil & gas fractured reservoir flow in porous media mmp miscibility miscible gas injection spe 75136 enhanced recovery modeling & simulation...

.... The solutions presented indicate that a coalbed can be used to separate N 2 and CO 2 chromatographically at the same time CBM is recovered. enhanced recovery desorption complex reservoir concentration injection gas local flow velocity composition ch 4 spe 75255 coal bed methane eigenvalue...

... of the displacement is controlled by a sequence of nc-1 key tie lines. Besides the tie lines that extend through the initial oil and injection gas compositions, there are nc-3 tie lines, known as crossover tie lines, that can be found from a set of conditions that require the extensions of the appropriate tie lines...

... determine the minimum enrichment of intermediates (C 2 -C 6 ) required for miscibility given reservoir pressure, reservoir fluid composition, and for a fixed reservoir temperature; or the minimum pressure for miscibility, given an injection gas and reservoir fluid composition. Experimental slim tube...