eprintid: 3591
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/35/91
datestamp: 2023-11-09 15:51:51
lastmod: 2023-11-09 15:51:51
status_changed: 2023-11-09 15:47:10
type: article
metadata_visibility: show
creators_name: Elraies, K.A.
title: The effect of a new in situ precipitation inhibitor on chemical EOR
ispublished: pub
keywords: Calcium and magnesiums; Compatibility test; Divalent metal cations; Enhanced oil recovery; In-situ precipitation; Inhibitor concentration; Precipitation inhibitors; Ultralow interfacial tension, Brines; Calcium; Enhanced recovery; Floods; Magnesium; Oil well flooding; Positive ions; Surface tension, Water injection
note: cited By 8
abstract: Divalent metals cations present in injection water can significantly influence the performance of alkali-surfactant-polymer (ASP) flooding. These cations such as calcium and magnesium react with the added chemicals to form their insoluble salts as precipitations. In this paper, an in situ precipitation inhibitor known as sodium acrylate is used to overcome the precipitation problems prevalent with ASP flooding. Fluid-fluid compatibility tests were performed to examine the performance of the in situ precipitation inhibitor using hard brine having large quantity of divalent metal cations. The effect of the precipitation inhibitor on interfacial tension was also investigated using various inhibitor concentrations. The in situ precipitation inhibitor showed an excellent performance in preventing calcium and magnesium precipitations and the solutions remained clear for 45 days at 80 °C. Further, as the inhibitor concentration increased to an optimal value, an ultra-low interfacial tension of 0.04 mN/m could be achieved. The advantage of the in situ inhibitor is the use of hard brines without the need for softening the injection water. © 2013 The Author(s).
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84882952841&doi=10.1007%2fs13202-012-0049-3&partnerID=40&md5=3158a367588db0f9a14aba0028f6ae25
id_number: 10.1007/s13202-012-0049-3
full_text_status: none
publication: Journal of Petroleum Exploration and Production Technology
volume: 3
number: 2
pagerange: 133-137
refereed: TRUE
issn: 21900558
citation:   Elraies, K.A.  (2013) The effect of a new in situ precipitation inhibitor on chemical EOR.  Journal of Petroleum Exploration and Production Technology, 3 (2).  pp. 133-137.  ISSN 21900558