Development of a methodology for assessing the efficiency of micro-colmatants and a method for their classification
UDC: 622.244.442.063
DOI: -
Authors:
SPIRIDONOV PAVEL YU.
1,2,
KOVAL MAXIM E.1,2,
EVDOKIMOV DENIS V.1,2,
GILAEV GANI G.3
1 SamaraNIPIneft, Samara, Russia
2 Samara STU, Samara, Russia
3 Kuban State Technological University, Krasnodar, Russia
Keywords: micro-colmatant, asphaltene, asphalt, gilsonite, argillite, solubility, filtration rate, fractional composition, filter cake
Annotation:
The authors of the article consider such a chemical reagent for drilling fluids as a micro-colmatant. The reagent is used for colmatation of landslide-hazardous micro-fractured rocks. The choice of the reagent and confirmation of its effectiveness remains an open question. The influence of fractional composition and solubility on the final efficiency of micro-colmatants is considered. The filter cakes obtained after measuring the solubility of micro-colmatants are described in detail, since the cakes have different appearance and quality state. To assess the efficiency of the reagent, the filtration rate of the clay suspension with introduced micro-colmatants is measured on low-temperature low-pressure and high-temperature high-pressure filter presses (hereinafter LTLP and HTHP). At each stage of the research, all analyzed micro-colmatants were grouped according to characteristic features. Brief conclusions are given based on the results of the assessment and comparison.
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