... was 1900 m 3 , which is a good base for continuing further pilot project cycles (5 alternating CO 2 and water injection cycles). carbon dioxide injection croatia ivanic oil field implementation pilot project upstream oil & gas oil production concentration oil reserve spe 97639...

... concentrations can also be predicted. If pressure drawdown is held constant before and after a treatment, calculations suggest that relatively small gelant volumes may be most cost-effective in our case. The cost of water treatment, the initial water production rate, the oil residual resistance factor...

... numerical simulator is developed to model this process. The capillary pressure, relative permeability and residual saturations of both phases are considered as functions of IFT and wettability, which are correlated to the surfactant and salt concentrations based on the data obtained from laboratory...

... intervals. It is through the process of modelling the multiple fracture interaction and behaviour that the water injection efficiency can be optimised. waterflooding concentration containment propagation requirement injection reservoir characterization efficiency scenario reservoir...

... concentration tracer test analysis radioactive sulfur tracer manipulation reaction ampoule upstream oil & gas information injection spe 97704 procedure application tritium synthesis scn irradiation laboratory elemental sulfur waterflooding enhanced recovery thiocyanide petroleum...

... and post-chemical flood production performance. Permeability adjustment, mobility control, and alkaline-surfactant flood models are discussed. modeling & simulation saturation concentration flood performance chemical flood waterflooding layer permeability time step stile flow velocity...

... the development of novel surfactant-based gelled oil (S-GO). This new technology uses surfactants to develop the viscosity of diesel. Unlike conventional gelled oil systems, this gelled oil is not sensitive to the nature of base oil or additive concentrations. The S-GO system, with an order of magnitude higher...

... experiments performed in two main scale, flask size and simple core flooding system. There were five parameters, which their effects and also their importance were studied: source of carbon, nitrogen and phosphorus quantity, type of microorganism, temprature and salt concentration each one in three levels...

..., the market, and the expectation of delivery of improved oil recovery chemicals utilizing a microhole. reservoir thickener co 2 polyfast application experiment laboratory injection field application carbon dioxide viscosity enhanced recovery concentration oil recovery microhole technology...

... Abstract This paper describes optimization of gelled and in-situ gelled HCl/formic acid systems to stimulate deep gas wells completed with super Cr-13 tubing. High temperatures encountered in deep wells and the susceptibility of super Cr-13 to severe corrosion by concentrated HCl solutions...

... Abstract The use of miscible solvents in Improved Oil Recovery (IOR) processes requires knowledge of how the solvent will behave over all mixing ratios of oil and solvent. In particular it is important to know: (i) at what solvent concentration the asphaltenes start to precipitate, and (ii...

... seawater injectors and high temperature gas wells. These surfactant systems are non-damaging and do not require sized solids to control losses, which eliminates the need for remedial acid treatments. fracturing materials hydraulic fracturing emulsified acid polymer concentration proppant...

... behavior studies, a light-scattering technique with near infrared was used to determine the onset pressure of asphaltene precipitation. Also investigated were the effects of CO2 concentration on precipitation, including the potential for precipitation by CO2 at the current reservoir pressure...

... inhibition paraffin remediation production chemistry flow assurance composition change asphaltene content asphaltene precipitation upstream oil & gas hydrate inhibition wax remediation scale remediation reservoir concentration asphaltene remediation hydrate remediation wax inhibition pvt...

... reservoir enhanced recovery injection bright water treatment field trial waterflooding polymer concentration producer kernel sweep efficiency polymer injection viscosity drillstem/well testing reservoir surveillance reservoir characterization flow in porous media surfactant chemical...

... decrease by one third,nearly one second,and one sixth respectively,with 1.47×10 8 RMB being saved only for the chemicals. The variation regularity of the ASP-flooding performance is analyzed preliminarily by combining the injection-production profile, the concentration of the produced chemicals...

... transformation tracer concentration bingham model injection residual oil saturation concentration upstream oil & gas chemical tracer tracer curve tracer test analysis brigham model dispersion fluid dynamics flow in porous media partitioning tracer test brigham reservoir residual oil...

... & gas reduction hydraulic fracturing porosity in-situ bacteria growth aperture monte carlo simulation hydraulic gradient unit fracture permeability adsorbed phase fracture flow in porous media fracture aperture concentration enhanced recovery backbone porosity spe 72166 aperture...

... production. reservoir section concentration drilling operation spe 72130 upstream oil & gas gravel pack brunei return rate van vliet directional drilling oil production completion brine beta wave ohgp reservoir brunei shell petroleum placement alpha wave sand control screen...

... upstream oil & gas hydrocarbon gas wilkinson carbon recycling concentration injection spe 72102 greenhouse gas methane reservoir enhanced recovery climate change gas injection method sustainable development subsurface storage chemical flooding methods sustainability flow in porous...