DEFINITION METHOD OF CONTENT OF RESINS IN OILS Russian patent published in 2009 - IPC G01N33/22 G01N21/59 

FIELD: oil and gas production.

SUBSTANCE: oil is deasphalted, prepared 0.5% solution of asphalt-free oil in toluol, photocolorimetered it at length of wave 510 nm, it is defined transmission density, by its value there are calculated absorption of light coefficient (K_la) of solution of asphalt-free oil from correlation: K_la= 100%*D/0.4343CL [cm^-1], where D - value of transmission density at absorption band 510 nm; C - concentration of asphalt-free oil in toluol, %; L - absorption layer thickness of solution of asphalt-free oil in used liquid measuring cavity, cm; and by value K_la it is calculated content of resins in oil by empirically established formula:

EFFECT: simplicity and acceleration of analysis.

1 ex, 1 dwg