Chemistry: physical processes – Physical processes – Crystallization
Patent
1976-12-03
1977-11-15
Marantz, Sidney
Chemistry: physical processes
Physical processes
Crystallization
23230R, 166250, G01N 3324
Patent
active
040583660
ABSTRACT:
A method for determining the flow characteristics of subterranean petroliferous formations by injecting a tracer and a polysaccharide polymer having glucose moieties into said formation, recovering said tracer and polysaccharide from production well effluent at timed intervals and determining flow characteristics by the rate differential observed of the concentration of each in the effluent. Accurate determination of polysaccharide polymer is obtained by hydrolyzing the polymer to release glucose, reacting the glucose with orthotoluidine and determining the polymer concentration using colorimetric techniques.
REFERENCES:
patent: 3112182 (1963-11-01), Brown
patent: 3743613 (1973-07-01), Coulter
patent: 3792044 (1974-02-01), Dooley
patent: 3847548 (1974-11-01), Keller
patent: 3908760 (1975-09-01), Clampitt
C. A. Browne et al., Physical & Chemical Methods of Sugar Analysis, 3rd Edition, 856,865, John Wiley & Sons, New York, 1941.
Continental Oil Company
Marantz Sidney
Schupbach, Jr. Cortlan R.
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