324 



T. V. Shcherbakova 



eating materials which have entered the drilhng fluid from the surface. 

 To this end it is sufficient in many cases to conduct observations with a filter, 

 which absorbs the blue and transmits the yellow region of the spectrum, 

 i.e. to determine mainly the luminescence of only the resinous components 



3-2 



3-0 



2-6 



2-4 



2-2 



2-0 



0-8 



0-6 



0-2 



400 



1 -■ •«x — V 



480 



A, m/z 



560 



Tig. 8. Luminescence spectra. 1 — drilling fluid; 2 — drilling fluid with 10% petro- 

 leum; 3 — drilling fluid with 10% petroleum and 5% motor oil No. 6; 4. — drilling fluid 

 with 10% petroleum and 25% motor oil No. 6; 5— drilling fluid with 10% petroleum 

 and 50% motor oil; 6 — petroleum. Continuous lines — Tuimazin petroleum. Broken 

 lines — Kued petroleum. 



