PHASE BEHAVIOUR OF PHOSPHINOPOLYACRYLATE SCALES INHIBITOR

Autor:	E. Borgarello, Maria Andrei, T. P. Lockhart
Rok vydání:	1999
Předmět:	Adsorption Polymers and Plastics Chemical engineering Precipitation (chemistry) Chemistry Phase (matter) Yield (chemistry) Organic chemistry Concentration effect Scale deposition Physical and Theoretical Chemistry Dissolution Surfaces Coatings and Films
Zdroj:	Journal of Dispersion Science and Technology. 20:59-81
ISSN:	1532-2351 0193-2691
DOI:	10.1080/01932699908943779
Popis:	The influence of the Ca++ and inhibitor concentrations, pH, and temperature on the phase behaviour and precipitation yield of a phosphinopolyacrylate scale inhibitor, PPAA, has been studied. The results are interpreted in terms of the chemical processes governing PPAA-Ca++ complexation, and evidence for the role of inhibitor molecular weight in determining the degree of precipitation is produced. Comparative adsorption and precipitation squeezes, carried out in sandpacks, demonstrate that significant enhancement of the treatment lifetime can be achieved when conditions giving extensive inhibitor precipitation are used. The sandpack experiments and dissolution studies on the precipitated inhibitor both suggest strongly that kinetic phenomena influence the return level of inhibitor in the field. Together these studies point the way to approaches for optimising inhibitor precipitation squeeze treatments in order to control scale deposition in petroleum reservoirs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f45beb64b61d9879f01723f683fd1ef https://doi.org/10.1080/01932699908943779 Zobrazit plný text záznamu