All Days 2005
DOI: 10.2118/97530-ms
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Investigation of a High Temperature Organic Water Shutoff Gel: Reaction Mechanisms

Abstract: TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractWater production during oil and gas recovery is a longstanding problem that is becoming critical with maturing fields worldwide. Lifting, processing, treating and re-injection of the unwanted water add to the overall oil production costs. Also, water disposal may pose environmental problems. Recent statistical studies indicate that processing unwanted water costs the oil industry nearly 40 billion dollars per year.Polymer gels have been widely used as blockin… Show more

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Cited by 20 publications
(20 citation statements)
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“…More C13 NMR experimental details are reported elsewhere. 17 The chemical shifts of all carbons reported in this work agree with those reported in literature for carbonyl carbons at the amide groups (179.6 ppm) and those at the carboxylate groups (182.8 ppm). 21 Fig .…”
Section: Experimental Studies Materialssupporting
confidence: 90%
“…More C13 NMR experimental details are reported elsewhere. 17 The chemical shifts of all carbons reported in this work agree with those reported in literature for carbonyl carbons at the amide groups (179.6 ppm) and those at the carboxylate groups (182.8 ppm). 21 Fig .…”
Section: Experimental Studies Materialssupporting
confidence: 90%
“…The PAtBA copolymer used in this work has a molecular weight of 250 to 500 kDaltons, a degree of hydrolysis of nearly zero and an ester content of around 5 mol% as per the manufacturer and previous literature reports on the same product (Al-Muntasheri et al, 2006). The PEI crosslinker was used to crosslink the PAtBA.…”
Section: Methodsmentioning
confidence: 99%
“…The degree of hydrolysis of PAM was measured to be less than 0.1 mol% using the equipment and methods described elsewhere 6 . Both chemicals were supplied in aqueous solutions form.…”
Section: Methodsmentioning
confidence: 99%