... matrix points were potable water mixed with Petrobras Marlim Crude Oil. The test matrix includes variation of differential pressure on valves, flowrates and concentration of water/oil. Samples were collected downstream of both valves and led to settle into several residence times. The degree...

... upstream oil & gas surfactant oil recovery enhanced oil recovery material artificial intelligence machine learning effectiveness polymer concentration technology conference screening criteria enhanced oil recovery recommendation 10-fold cross validation alkaline test data...

...-flow-induced corrosion which intensifies the damages of carbon steel pipes in environments containing CO 2 and H 2 S, in different concentrations and in controlled conditions of pressure and temperature. light oil co 2 upstream oil & gas steel flow pattern multiphase flow riser...

... to 5 concentrations of SBM and NAF spiked sediment plus controls for 4 and 10 days, respectively, in static system. In NAF tests using G. bonnieroides the average LC50 obtained were 3.53 g.kg-1dw (n= 7; SD=1.63; CV= 46.07 1.33 g.kg-1dw (n= 6; SD=0.69; CV= 52.15%) and 0.56 g.kg-1dw (n= 7; SD=0.24; CV...

...-reactive clays. Product concentrations were adjusted to reduce the interaction between the drilling fluid and the formation while helping to ensure that fluid capabilities, such as cuttings suspension, filtration control, and bridging, were maintained. An adequate environmental profile to enable safe...

... with gas injections are being considered as EOR techniques. For paraffinic oils, such as alkanes, the presence of CO 2 decreases the IFT between oil and brine. However, for Pre-Salt oils with high concentrations of asphaltenes and resins, the effect of CO 2 injection on the oil-brine IFT has not been...

... of hydrates turbidity scale management synthetic water paraffin remediation production chemistry compatibility test wax remediation procedure inhibitor offshore technology conference oilfield chemistry anion brine scale formation scale inhibition concentration Abstract Scale occurrence...

... ), contributing to the greenhouse effect. In presence of water it forms sulfuric acid and precipitates as acid rain. Given its physicochemical properties, H 2 S tends to accumulate in spaces with little ventilation; being a serious condition in operational processes. Even in low concentrations it causes health...

... is not sufficient to reach the desired concentration. In this project, the most challenged of this project are of necessity of Outlet TSS Concentration below < 20 and 80% removal particle size > 5 microns and Oil Outlet concentration below 25 ppm, whilst the TSS and oil inlet are approximate 200 ppm...

... reamer cement job open hole sbm terra field drilling operation head loss cleaning ppg concentration drilling fluid management & disposal drilling fluids and materials upstream oil & gas Martins , A.L. , Santana , M.L. , Campos , W. , Gaspari , E.F. 1999...

... formation oil nadf biodegradation environmental impact sediment olefin drilling fluid selection and formulation concentration gulf Altin , D. , T. K. Frost , and I. Nilssen . 2008 . ‘Approaches for derivation of environmental quality criteria for substances applied in risk...

... flooding tests at reservoir conditions. Porosity variation along the length was determined by Computerized Tomography scan analysis. Permeability was determined through pressure drop data. Ions identification and concentration were determined by ions chromatography. The experiments consisted in carrying...

... Abstract The present study investigated an evaluation efficiency of electrocoagulation (EC) for the pretreatment of a saline concentrated effluent from the reverse electrodialysis (RED-C) stage from an oil refinery, aiming at water reuse in the industrial process. In this approach...

... Abstract Surfactant losses due to adsorption in the hydrocarbon reservoir is a major concern in surfactant based chemical enhance oil recovery (chemical EOR) methods because it results in the loss of optimum concentration required for adequately reducing oil-water interfacial tension (IFT...

... paraffin remediation simulation remediation of hydrates valve particle wax remediation wax inhibition scale deposition risk experiment tendency upstream oil & gas downhole icv hydrate inhibition calcium carbonate precipitation concentration deposition process scale deposition...

... the concentration from 0.5% to 3%. They analyzed the addition of nanoparticles on the rheological and filtration properties of a BWBM with XG and PAC as the main polymers before and after the aging process. ENP nanoparticles presented the more pronounced impact on rheological and filtration properties. API...

..., which often depends on laboratory analysis or numerical simulation to estimate various reservoir behaviors. This research, aims to predict the relative permeability curves with wettability alteration effect, given a concentration of the ionic composition in water injection. For this, machine learning...

... with brines of various concentration. Three different brine concentrations ranging from formation water salinity (FWS, 160,000ppm) to sea-water salinity (SWS, 32,895 ppm) and low salinity water (LSW, 2,000ppm) were contacted with a crude oil from the limestone formations of the Lansing-Kansas City group...

...-porosity model, where the deposit is a porous media, was developed. From a thermodynamic equilibrium, the species that comes out of solution are determined while their concentration distribution is determined by each molar conservation equation. The conservations equations were solved with the finite...

... of these waters, becoming the massive salt formations, one of the major challenges faced, not only for drilling methods and techniques, but for zonal isolation in general terms, related to cementing operations. Cementing jobs executed in salt environments require cement slurries with specific concentrations...