
Publication
HYDRAULIC FRACTURING OF UNCASED BOREHOLES WITH POLYMER SEALING TECHNOLOGY
(STEF92 Technology, 2018-06-20, S. V. Serdyukov)
Show more
The paper gives comparative analysis of the method of vacuum extraction of Chaga carried out by the authors. The process supposed that the ground Chaga was pre-vacuumed for 10 minutes in order to release the holes from air and moisture vapor and conduce efficient time pregnation of the extractant; further, the author saddled still dewatering the ratio 1:10 and kept at the temperature of 70В°C.In the process of extraction, the pressure was hourly lowered to 0.3 atm, which promoted the boiling of the extractant in a...
Exploration and Mining2018
