... ABSTRACT The influence of mono ethylene glycol (MEG) on the precipitation of calcium carbonate was investigated at constant supersaturation, 25°C, pH 8.5. Seeded and unseeded experiments were done in aqueous supersaturated calcium carbonate solutions containing MEG over the concentration...

... NEW UNDERSTANDING ON CALCIUM CARBONATE SCALING KINETICS Qiwei Wang Saudi Aramco Research & Development Center Dhahran, Saudi Arabia 31311 Faez Al-Dawood Saudi Aramco Research & Development Center Dhahran, Saudi Arabia 31311 Tao Chen Saudi Aramco EXPEC Advanced Research Center Dhahran, Saudi Arabia...

...Calcium Carbonate Biofouling P.D. Natsi, P.G. Koutsoukos University of Patras, Department of Chemical Engineering, and FORTH - ICEHT, GR 26500 Patras, Greece ABSTRACT Biofouling is the formation of composite deposits consisting of living organic matter and inorganic salts. So far there is little...

... ABSTRACT As the oil industry continues to operate in more complex and ultrahigh temperature environments scale control becomes an ever increasing challenge. Scale inhibitors are being pushed to their operational limits and start to lose their efficiency against both calcium carbonate...

... Division permission wax remediation wax inhibition asphaltene remediation remediation of hydrates calcium carbonate saturation index saturation level Compound manuscript alkalinity scale formation dosage Houston upper limit saturation ratio Tailoring Scale Prediction Models...

... application manuscript differential pressure scale control Publication Division tolerance geothermal plant calcium carbonate texas 77084 Houston phosphonate Development of a Novel Phosphonate Scale Inhibitor for Scale Control in Geothermal Applications. Bethanni McCabe Baker Hughes, a GE Company...

... ABSTRACT This study is focused on the evaluation of polyepoxysuccinic acid (PESA), 2-phosphonobutane 1,2,4-tricarboxyMic acid (PBTC), and PESA/PBTC blends for calcium sulfate dihydrate (gypsum) and calcium carbonate scale inhibition for aqueous systems. For comparison, synthetic, bio...

.... Rationale scale remediation Production Chemistry water management oilfield chemistry scale inhibition Upstream Oil & Gas paraffin remediation Hydrate Remediation hydrate inhibition precipitation calcium carbonate inhibitor texas 77084 Publication Division permission asphaltene...

... Abstract Calcium carbonate (CaCO3) was synthesized in the presence of the water-soluble biopolymer carboxymethyl inulin (CMI) by a precipitation method. The obtained CaCO 3 crystals were characterized by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). The results showed...

... Abstract The precipitation of calcium carbonate from supersaturated solutions seeded and unseeded was studied at constant supersaturation, 25°C, pH 8.5. The experiments were done in aqueous solutions and in solutions containing water miscible and immiscible organic solvents in order...

... Abstract The inhibition of calcium carbonate (CaCO 3 ) precipitation by phosphonates containing different functional groups has been investigated in aqueous solution. It has been found that the performance of phosphonate as CaCO 3 inhibitor depends upon its architecture. The influence...

... Abstract Crystallization fouling is one of the major problems in process industries using water. In the present work the precipitation of calcium carbonate (CaCO 3 ), and of mixed calcium carbonate - calcium sulfate (CaSO 4 ) deposits on the walls of a heated metal surface of stainless steel...

... are solely based upon thermodynamic data without taking into consideration any kinetic aspects of scale induction times or growth rates. The aim of this paper is to investigate the interplay between kinetic and thermodynamic control of calcium carbonate precipitation in the bulk and on surfaces. Standard...

... hydrate remediation hydrate inhibition asphaltene inhibition paraffin remediation wax inhibition asphaltene remediation concentration remediation of hydrates calcium carbonate wax remediation oilfield chemistry scale inhibition fe 2 vaterite polymorph induction time texas 77084...

... with respect to calcium carbonate and addition of different formulation of combined inhibitor derived from the single components at different concentrations. A full two-level factorial experimental design method was applied to study the individual effects of single components of combined inhibitor as well...

... ABSTRACT Sulfate-reducing bacteria (SRB) are a large group of anaerobic microorganisms that can facilitate many biochemical processes. Calcium carbonate (CaCO 3 ) precipitation is a common phenomenon found in an environment such as marine water, fresh water and soils. In this paper...

.... Calcium carbonate (CaCO3) and barium sulfate (BaSO4) are common types of scale encountered in these sectors. Scale predictions are typically based on thermodynamics and tend not to give a time-based quantification of surface scale growth. Recent work clearly demonstrated that scale deposition...

... large volumes of water and frac sand, which can add complexity to production chemical treating. Artificial Intelligence materials and corrosion flowline corrosion oilfield chemistry well integrity Publication Division riser corrosion Subsurface Corrosion calcium carbonate sucker rod...

... coverage deposition calcium carbonate contact angle asphaltene inhibition roughness surface deposition stainless steel scale formation superfinished surface remediation of hydrates Efficiency composition morphology PPCA substrate different substrate 2011 Preventing Scale Formation Using...

.... Laboratory data is presented which highlights excellent performance characteristics in jar and pilot cooling tower tests and shows improved performance over a commercial green inhibitor. Keywords: Calcium carbonate, scale inhibitor, jar test, pilot cooling tower, water chemistry, maleic acid, polymer...