... and imperfect injecting-production well patterns, high recovery degree (43%) and high water cut (97%). A new particle-type polymer (SMG) slug combined several small linked-polymer-gel (LPG)slugs and pregelled swellable particle (PSP) was applied during 2011-2015 and achieved remarkable technical and economic...

... volume (PV) surfactant-polymer slug was then injected at the optimal salinity S* followed by a 2 PV polymer drive. A salinity gradient (S < S*) was used in the polymer postflush in order to decrease the surfactant adsorption ( Hirasaki et al., 1983 ). Chase water was injected at the end. All...

... several multiphase simple solutions to address most problems. These problems include: constrained gas handling capacity, uneven phase splitting in the modules II and III common inlet manifold and presence of hydrodynamic slugs in the inlet lines. The Cylindrical Cyclone Gas Liquid (CCGL) separation...

... correspond to given compositions of injected gas and displaced oil: (6) C i ( x D , 0 ) = C i I C i ( 0 , t D ) = C i J The boundary conditions for the displacement of oil by solvent slug with lean gas drive are: (7) C i ( 0...

... Obviously, the complement of the produced slug is the fallback, which will be the initial column for the accumulation stage in the next cycle. Therefore: (10) Y o = Y a c c u m C f a l l b a c k Abstract Currently in Lake Maracaibo there are nearly 2000...

... the laboratory tests to the final application including design and programming of field operation. The interpretation of the results using a new approach is also addressed. adsorption tracer polymer tritium drainage area carmópolis field slug dispersion injection upstream oil & gas...

... of displacement and phase transition fronts, mechanisms of trapping of oil with the sequential injection of water and gas slugs, mobility ratios on shock fronts and the dynamics of water and gas slugs. Six different regimes for gas-water injection, after waterflooding, have been distinguished depending...

... with the physical interpretation of phenomena. Analytical solutions for the injection of the water slug with the gas drive and for the sequential injection of water and gas slugs with the water drive are obtained. The solutions show that the hysteresis decreases the gas flux in the case where the drainage relative...

... liquid phase surfactant enhanced recovery slug injection surfactant solution foam nitrogen residual oil saturation injection pressure response upstream oil & gas pressure gradient concentration slug chemical flooding methods steam quality pressure drop slug size procedure...

... generation and poor bubble transport. Flow experiments were carried out in sand packs at steamflood conditions to develop Strategies for improving foam generation by a pre-foam reduction of residual saturation in the swept zone. The results showed that the pre-foam concept could be used with small slugs...

... production production control programme pressure record operation wellhead platform platform liquid slug production logging hidra north valve riser reservoir surveillance production system subsea system slug production monitoring sealine phenomenum pipeline SPE SPE 21100 Multiphase...

... for the PL sensors are inaccurate and should be replaced by implicit computations based on in-situ physical and dynamical fluid behavior. physical and dynamical fluid behavior. slug liquid spe 21065 hydraulic diameter phase velocity flow regime reservoir surveillance relation correlation...