Some problems of optimization of the accident-free opening technology of the intervals composed by clay rock
UDC: 622.24.06
DOI: 10.33285/0130-3872-2023-3(363)-41-46
Authors:
ULYASHEVA NADEZHDA M.
1,
MIKHEEV MIKHAIL A.1,
TSUKANOVA ANASTASYA N.1
1 Ukhta State Technical University, Ukhta, Russia
Keywords: Timano-Pechora oil- and gas-bearing province, shale rocks, complication, absorption, caving, drilling fluid, inhibitor, degradation, pH value, fermentation, mineral aggression
Annotation:
Despite a significant variety of geological drilling conditions, most of the areas of the Timano-Pechora oil- and gas-bearing province have a single factor – the presence in the section of a large number of clay rocks of various degrees of lithification. The article considers the features of well construction at a number of fields in the province using water-based drilling fluids. Practical drilling experience shows that the success of drilling a well in clayey rocks is a complex indicator that depends on the correct choice of the drilling technology and the optimal composition and characteristics of the drilling fluid. A decision-making algorithm for choosing the composition of the drilling fluid is presented.
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