All Days 2000
DOI: 10.2118/60216-ms
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Developments in PhosphonoMethylated PolyAmine (PMPA) Scale Inhibitor Chemistry for Severe BaSO4 Scaling Conditions

Abstract: This paper describes the development of a PMPA scale inhibitor chemistry, for potential ‘squeeze’ application, to provide scale inhibition under severe Barium Sulphate scaling conditions. Phosphonate type inhibitor chemistries have been applied in ‘squeeze’ treatments as they have the desired adsorption characteristics to protect the near wellbore formation, perforations and production strings for a significant period of time (known as the ‘Squeeze’ Life). These chemistry types, however, are not the most effic… Show more

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Cited by 22 publications
(4 citation statements)
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“…It was reported that the SIs with a polyamine backbone are phosphonated by the Moedritzer–Irani reaction to afford a molecular weight in the range of 300–5000 (Figure ). These classes of polymers are useful for sulfate scale inhibition particularly for squeeze applications. Unfortunately, this synthetic method is not efficient for polymers with backbones incorporating ester and/or amide groups because the acidic conditions lead to the hydrolysis of these functional groups.…”
Section: Polyphosphonatesmentioning
confidence: 99%
“…It was reported that the SIs with a polyamine backbone are phosphonated by the Moedritzer–Irani reaction to afford a molecular weight in the range of 300–5000 (Figure ). These classes of polymers are useful for sulfate scale inhibition particularly for squeeze applications. Unfortunately, this synthetic method is not efficient for polymers with backbones incorporating ester and/or amide groups because the acidic conditions lead to the hydrolysis of these functional groups.…”
Section: Polyphosphonatesmentioning
confidence: 99%
“…The previous experimental studies detailed above have included phosphonate- and phosphorus-tagged polymeric scale inhibitors because of their high performance, adsorption efficiency, and ease of detection. , However, the use of conventional scale inhibitors has been limited recently in certain areas such as the North Sea and the Norwegian Sea, where strict environmental regulations have been applied. , Therefore, many production companies are replacing the conventional scale inhibitors with more environmentally friendly inhibitors, such as polyhydric alcohol phosphate ester (PAPE). , In fact, phosphorus within phosphate ester scale inhibitors improves the adsorption capacity, squeeze lifetime, and the detectability of the inhibitors, whereas their environmental friendliness allows them to be applied in sensitive environments …”
Section: Introductionmentioning
confidence: 99%
“…Further examples of scale inhibitors include polyacrylate, copolymers containing acrylate and sulphonate, polyaspartate, 3 end capped polymer, 4,5 and phosphonomethylated polyamine (PMPA). 6 Phosphonate based scale inhibitors have been widely used as effective scale inhibitors for squeeze application, which are characterised as effective scale inhibitors with low concentration, are easily detected, have good adsorption and desorption along with a long squeeze life. 7 However, there has still been a need to develop new inhibitor chemistries in order to extend the effects of a squeeze treatment and improve on the environmental properties.…”
Section: Scale Technology Toolbox -Scale Inhibitor Molecular Designmentioning
confidence: 99%