... to be open or closed. The different fluid in reservoirs, oil, water and gas favors to flow of low viscosity fluids. As an example, if a reservoir has oil viscosity of 5.6 cP, water viscosity of 0.66 cP and gas viscosity of 0.018 cP, the mobility ratio between water to oil is 8.5 and mobility ratio...

... permitted to estimate the compressibility of the unconsolidated sandstone. Based on the evidence collected during the different tests, the conclusion is reached that during the processes of steam cyclic and steam continuous injection, a channel of high oil mobility was generated by the viscosity contrast...

... selection and formulation directional drilling friction regime drilling fluids and materials drilling fluid formulation lubricant drilling fluid chemistry fluid loss control upstream oil & gas liquid lubricant drilling fluid property drilling operation solid lubricant viscosity solid...

... flooding improves volumetric sweep efficiency through improving the adverse mobility ratio by increasing water viscosity. Therefore, the effect of trapping number on oil recovery is usually neglected. This paper numerically investigates the effect of trapping number on oil recovery by polymer flooding...

..., and compressive strength greater than 1,100 psi cement formulation drilling fluids and materials drilling fluid chemistry drilling fluid selection and formulation fluid loss control cement property drilling fluid property annular pressure drilling plastic viscosity zonal isolation casing...

... recovery. Recovery factors were measured in core-flooding experiments performed using live extra heavy oil (API 8.7, Rs of 95 scf/bbl and viscosity of 2 000 cP at reservoir conditions) with high content of basic and acidic compounds (6.27 and 2.3 mg potassium hydroxide/g of oil, respectively). Rheology...

... and growth of the disturbing and mixing zone during the slurry transport is dictated by fluid density, viscosity, flow rate and travel distance. In addition to the diffusion related dispersion, interface instabilities may influence the mixture of the displaced fluids and raise the turbulent effect along...

... interactions. enhanced recovery flow in porous media upstream oil & gas oilfield chemistry fluid compatibility fluid dynamics production chemistry rock/fluid interaction brine experiment injection brine chemical flooding methods chemical treatment waterflooding viscosity recovery...

..., high viscosities that can achieve 100.000 cp at sea bed temperatures, etc. To overcome these challenges, the best subsea system technologies has been used, together with some small, but ingenuous, innovations. The use of a 6" unbonded flexible lines, with TEC 2 insulation layers minimize the risk...

... was used as departure point for studies performed. Maintaining a good injectivity in polymer injection projects normally is a major concern, in this case we present a real case of a polymer injection project in an extra heavy oil reservoir, which is producing oil with an average viscosity of 4150 cP...

...-rate and pumps. Complementary, polymer stability must be monitored during the injectivity test to reduce viscosity fluctuations, and a flowback test will finally validate the whole process asserting absence of polymer degradation at reservoir conditions. In Los Perales three wells were tested for HPAM...

... parallel plates (i.e., Poiseuille flow). Based on such numerical framework, this paper investigates the fracture propagation in two limiting regimes: storage-toughness and storage-viscosity dominated regimes. For such purpose, two groups of simulations under plane strain conditions are carried out...

... & Gas field test polymer flooding surfactant imbibition technology chemical flooding methods thermal stability block chj-9 evaluation gel high temperature core flooding test incremental oil recovery polymer solution enhanced recovery viscosity imbibition fault block surfactant...

... as hydraulic fracturing fluid. This study specifically investigates the effect of nanoparticles on the stability of alpha olefin sulfonate (AOS) foam and the corresponding mobility-reduction factor (MRF), which indicates the apparent fluid viscosity at high-temperature and high salinity. To achieve...

... behavior in the presence of strong bases like lime becomes stable as the rolling up temperature increases until 120°C, whereas when there is no lime in the composition the behavior is more constant in all the cases and the change of viscosity with respect to the initial viscosity is smaller. The presence...

... the reader to better estimate oil properties in the absence laboratory data. Modified correlations as well as statistical results from the comparison of measured and predicted properties are listed at the end of this section. PVT measurement bubble point pressure live oil viscosity viscosity...

... that the selected polymer at the target concentration was not significantly degraded in the reservoir. Upstream Oil & Gas enhanced recovery chemical flooding methods Flow profile injector viscosity concentration Rayoso Formation Modeling & Simulation polymer injection injection well...

... for the streams treatment during enhanced heavy oil recovery (steam injection). Sorption of the H 2 S present in oil phases finds application for mitigating H 2 S forming during this process. In this study, our heavy crude oil whose viscosity is 10500 mPa.s, was obtained from a reservoir block of the Faja...

... horizontal wells. Nevertheless, the live oil viscosity variation at reservoir conditions (1,500 to 20,000 cp) represents a production challenge in the field. This study aims to improve the fluid heterogeneity understanding in the field through the application of PVT (Pressure, Volume and Temperature...

... flooding reduction concentration viscosity Pilot Test injection palogrande cebú field revitalization recovery factor water injection waterflooding information Screening Oil Recovery palogrande cebú field evaluation polymer solution reservoir Introduction In Colombia the average...