Investigation of influence of geometry of cross-section of hydromonitor nozzles on their performance
UDC: 622.244.4
DOI: 10.33285/2073-9028-2023-1(310)-153-161
Authors:
SERIKOV DMITRY YU.
1,
MURADOV ALEXANDER V.1,
BOREIKO DMITRY A.2,
LAUDENSCHLEGER LINDA O.2
1 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation
2 Ukhta State Technical University, Ukhta, Russian Federation
Keywords: drill bit, hydraulic monitoring nozzle, drilling, downhole zone, hexagonal cross section, construction, well
Annotation:
The article presents the results of studies of the influence of the cross-section of hydraulic nozzles on the efficiency of their work. For comparison, calculations of two types of nozzles are presented – with a round and hexagonal cross-section. The geometric and kinematic characteristics of the jets flowing from the indicated nozzles are subjected to analysis. Also presented are the results of pilot-industrial tests of chisel samples with oblique-toothed armament, in the flushing system of which the proposed hydromonitor nozzles of hexagonal asymmetric cross-section were used. It is shown that the use of hydraulic monitoring nozzles with an internal hexagonal cross-section allows not only to increase the destructive ability of the washing liquid jet, but also to increase its productivity in terms of cleaning the tool and the entire bottom-hole zone as a whole.
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