Results 201 to 210 of about 833,494 (262)
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Inhibition and dispersion of polyepoxysuccinate as a scale inhibitor
Journal of Environmental Sciences, 2011The inhibition and dispersion of polyepoxysuccinate (PESA, self-manufactured) to inorganic scale was evaluated by scale static beaker test to CaC03 and Ca3(P04)2, stability test to zinc salt, and dispersion test to ferric oxide. The experimental results demonstrated that PESA functioned excellent scale inhibition to CaC03 and Ca3(P04)2, good stability ...
Xiaohui, Zhou +2 more
exaly +3 more sources
Materials Today Communications, 2020
Abstract A fluorescent-tagged and carboxyl-terminated hyper-branched waterborne polyester (HBP-AP) was prepared and characterized. Acted as CaSO4 scale inhibitor, its application conditions such as the dosage, Ca2+ concentration and pH value, were investigated to optimize the scale inhibition efficiency.
Zhi-Jian Zhang
exaly +2 more sources
Abstract A fluorescent-tagged and carboxyl-terminated hyper-branched waterborne polyester (HBP-AP) was prepared and characterized. Acted as CaSO4 scale inhibitor, its application conditions such as the dosage, Ca2+ concentration and pH value, were investigated to optimize the scale inhibition efficiency.
Zhi-Jian Zhang
exaly +2 more sources
A New Look at the Scale Inhibition Mechanisms and Some Refinement of the Scale Inhibition Theory
CORROSION 2021, 2021Abstract The data on scale inhibition mechanisms are critically analyzed with the emphasis on the published data disparity and controversy. On the grounds of three independent approaches it is demonstrated that foreign background “nanodust” particles have a dramatic impact on antiscalant efficacy.
Maxim Oshchepkov, Konstantin Popov
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Mechanisms of Mineral Scale Inhibition
SPE Production & Facilities, 2002SummaryAn extensive study of adsorption and desorption isotherms of four phosphonates on barite or calcite are tested for a wide range of solution conditions (0 to 1 M NaCl, 0 to 0.1 M Ca, 0 to 0.33 M sulfate, and 4.6 to 6.4 pH). From these adsorption/desorption observations, it is proposed that the primary driving force for adsorption is related to ...
M. B. Tomson +3 more
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Proceedings of University of Tulsa Centennial Petroleum Engineering Symposium, 1994
Abstract Adsorption is considered the primary mechanism of scale inhibitor retention during squeeze treatments of sandstone formations. Steps are often taken to avoid inhibitor precipitation for fear of formation damage. In limestone and dolomite formations, phosphonic acid inhibitors are deliberately allowed to react with the formation ...
Curtis Crowe +3 more
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Abstract Adsorption is considered the primary mechanism of scale inhibitor retention during squeeze treatments of sandstone formations. Steps are often taken to avoid inhibitor precipitation for fear of formation damage. In limestone and dolomite formations, phosphonic acid inhibitors are deliberately allowed to react with the formation ...
Curtis Crowe +3 more
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SCALE INHIBITION FOR INJECTION OF INCOMPATIBLE WATERS
Proceedings of SPE Oilfield and Geothermal Chemistry Symposium, 1982ABSTRACT The utilization of scale inhibitors is the most common and promising method of combatting the scale problems in oil and gas field operations. The extension of the scale inhibition technique to geothermal operations faces some problems mainly due to the high temperature and high salinity of the brines.
O. J. Vetter, V. Kandarpa
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Scale inhibition study by turbidity measurement
Journal of Colloid and Interface Science, 2005The concept of a critical supersaturation ratio (CSSR) has been used to characterize the effectiveness of different types of scale inhibitors, inhibitor concentration, and precipitating solution pH in order to prevent the formation of barium sulfate scale.
V, Tantayakom +4 more
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Combined Scale Removal and Scale Inhibition Treatments
International Symposium on Oilfield Scale, 2000Abstract Calcium carbonate scale impacts oil production in a large number of fields worldwide. This scale is generally managed by acid washing to removal the scale and/or by performing scale inhibition treatments. The choice between inhibition and regular stimulation is cost driven, with high cost operations generally selecting ...
P.S. Smith, C.C. Jr., A. Rojas
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Investigation of Calcium Carbonate Scaling Inhibition and Scale Morphology by AFM
Journal of Colloid and Interface Science, 2001The calcium carbonate scale inhibition by two inhibitors, polyacrylic acid (PAA) and 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA), has been studied in two heat transfer systems: recirculating cooling water and pool boiling systems. It is found that PBTCA has a better inhibition effect than PAA under identical conditions.
Qingfeng, Yang +4 more
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Inhibition of Barite Scale in the Presence Of Hydrate Inhibitors
SPE International Symposium on Oilfield Scale, 2004Abstract Large volumes of hydrate inhibitors (e.g., methanol, ethanol, monoethylene glycol, and triethylene glycol as cosolvent) are added to control hydrate formation. Such practice has an adverse effect on scale formation since the mineral salts are generally less soluble in the cosolvent.
Mason Tomson, Amy Kan, Fu Gongmin
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