Lanthanide-Complexed Esters for Single-Well SOR Measurements
Keywords:The National IOR Centre of Norway, SWCTT, oil saturation, SOR
The main objective has been to improve the prevailing single-well chemical tracer push-and-pull technique, SWCTT, for measurement of residual oil saturation (SOR) in defined pay zones in a single well test [1,2,3] after water injection on the following subjects:
• Improvement in tracer detection limits by a factor > 1000
• On-site or even on-line detection of tracer signal in true time
• Reduction in the needed amount of tracer by a factor of > 1000
• Reduced footprint on production platforms during tracer operation
The intended audience and technology users are oil and service companies.
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