... exponent log analysis water saturation saturation pore geometry equation resistivity reservoir recovery society of petroleum engineers carbonate reservoir Introduction Exploration in oil and gas industry is considered as an area full of uncertainties. The uncertainties are mainly due...

... ) introduced an IPR correlation for vertical oil wells located in the center of solution gas derive reservoir. The invented equation is similar to Fetkovich equation but with two exponents m and n ( Eq. 10 ). (10) q o q o max = 1 − p w f p ¯ m n...

... Abstract Water injection into oil reservoirs is widely used practice to support oil production by maintaining the reservoir pressure within a desirable range to avoid a decline in reservoir pressure. Frequent monitoring of the water injectivity in the injection wells are very crucial to ensure...

... of the oil. The injection pressure rose up to 59 psi and stabilized at 50 psi ( Figure 1.b ). Many American Midwestern reservoirs contain heavy oil. Kansas is one of those reservoirs. The oil in those reservoirs is not produced naturally. A lot of sucker rod pumps have been installed to produce the heavy...

... of polymeric additives that pass through the drilling fluid filter cake and invade deeply into the reservoir. Abstract Drilling and completing reservoir formations without causing the formation damage is nearly or almost impossible. In most of the cases, selected drilling or completion fluids that were...

... in exploitation of heavy-oil reservoirs if thermal options are limited and greenhouse gas emission is a concern. Table 1 List of experiments conducted. Water-wet cases Oil-wet cases 1. Base case (Water flooding) 1. Base case (Water flooding) 2. Base case (Solvent flooding) 2. Base case...

... Abstract In heterogeneous reservoir formations, water tends to have early breakthrough due to the overriding and viscous fingering during secondary recovery. The overall hydrocarbon recovery efficiency remains very low in gas and water flooding projects because of less viscosity and higher...

... and completion design and providing recommendations for future completion. hydraulic fracturing frac treatment regression analysis Reservoir Characterization Upstream Oil & Gas completion completion design Completion Evaluation Completion Installation and Operations friction frac channel...

... prevail either coincidentally or sequentially in the hydraulic fractures, in the naturally-fractured inner reservoir (SRV), and from the outer reservoir beyond the tips of the hydraulic fractures ( Figure 4 ). The contribution of hydraulic fractures starts immediately after flowing the well. This takes...

... hodge 2000 seawater fluid gel stability reservoir proppant polymer guar stability breaker Cmhpg hpg-based seawater society of petroleum engineers fluid stability Introduction Hydraulic fracturing remains one of the most useful tools for improving well productivity. It is a process...

... runs were generated in constant bottom-hole pressure scenario. Table 1 Presents full description of the reservoir model being used and the initial gas saturation and volume beside the formation top depth and reservoir permeabilities. Abstract The use of multilateral wells became significant...

... Abstract Production of ultra-heavy oils is economically and technically challenging due to the very high viscosity of heavy oils, sharp viscosity increase over a small temperature drop and high operating costs. Reservoir oil can't even be mobilized by steam stimulation only due to inadequate...

... and interbedded reservoirs, the risk of stuck pipe increases significantly as the field is getting produced, due to some layers being more depleted than others because of permeability and production variations, leading to significant uncertainties of both the reservoir pressure and the stresses in the wellbore...

... Abstract One of the major challenges to maximizing recovery of reserves is that every oil or gas reservoir rock is more or less heterogeneous at all scales (micro, mega, and pore) which leads to disproportionate production and injection outcomes. Generally, the higher the level of reservoir...

.... This is to ensure less noise and gravity adjustment if needed. Thermal effect due to a gas percentage may have some effect on quality of data. Well performance consideration Upstream Oil & Gas drillstem/well testing application pressure gauge reservoir pressure data surface data interpretation...

... sample monitoring formation water speed measurement log analysis water fraction fluid density cleanup slowness contamination well logging estimation reservoir Introduction Abstract Surface laboratory analyses of downhole water samples can typically introduce a significant delay...

... experimentally measured three-phase relative permeability data. Upstream Oil & Gas two-phase relative permeability data saturation path relative permeability model reservoir flow in porous media three-phase relative permeability three-phase relative permeability data relative permeability oil...

... Abstract Hydraulic fracturing is performed to enhance production in reservoirs with low permeability. It's an effective technique but there are still several uncertainties associated in its implementation. One of the uncertainties is the dependence of breakdown pressure on the type...

... was approximately 5-8 seconds as determined experimentally. Purification Abstract The oil mobilization in tertiary mode using chemicals has been shown to be a promising approach. In such technique, surfactants with or without polymers, designed for specific reservoir conditions, are added into water during...

... ℃ (kg/m 3 ) Mineral oil Colorless transparent liquid 10.0 840 Cores Abstract Due to the strong mobility and energizing effect, CO 2 can be injected into reservoir as a displacement agent to increase oil production in low permeability reservoir. However, low viscosity of pure...