IMPROVING THE EFFICIENCY OF DRILLING OPERATIONS IN THE BUZULUK DEPRESSION
UDC: 622.24
DOI: 10.33285/0130-3872-2021-10(346)-15-17
Authors:
SENOCHKIN ANTON PETROVICH 1,
SIDOROV YULY LVOVICH 1,
SHEVALDIN YURY ROBERTOVICH 1,
SIDOROV LEV SAMUILOVICH 1
1 Oil Company "NOVY POTOK", Buzuluk, Russian Federation
Keywords: well, shale, filtration, drilling mud, caving formation, microemulsion
Annotation:
Peculiarities of drilling oil wells in a large tectonic element of the first order are considered. Well drilling is complicated by the presence of caving formation in shaly clayey rocks, which are widely represented in the region of operations in the Carboniferous and Devonian formations. When drilling intermediate carbonate strata, losses are noted. The reasons for their manifestation are considered. Based on the study of the structure and texture of collapsing rocks, a method for preventing these complications was determined. Significant changes have been introduced into the structure of the aqueous drilling fluid, in particular, to the dispersed phase. Practical implementation of the developed solution formulation increases well construction rates at the commercial speed by 40 % and reduces financial costs by 15 %.
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