1 documents found
Information × Registration Number 0309U000748, 0103U007238 , R & D reports Title Development of a drag bit with diameter equal to 292,9 mm, equiped with diamond-insert plates popup.stage_title Розробка долота ріжучої дії діаметром 292,9 мм, оснащеного алмазно-твердосплавними пластинами Head Draganchuk Oksana Teodorivna, Registration Date 03-09-2009 Organization Ivano-Frankivsk Nstional Technical University of Oil and Gas popup.description2 As a result of implementation of SRW the mathematical model of chisels work of cutting-splitting type was developed. Geometrical and spatial design of the system “heading of bore-hole” – “chisel” was made. Rational structural parameters and contact charts of “device-rock” contact were determined. Washing systems of cutting-splitting action chisels were modernized. Product Description popup.authors popup.nrat_date 2020-04-02 Close
R & D report
Head: Draganchuk Oksana Teodorivna. Development of a drag bit with diameter equal to 292,9 mm, equiped with diamond-insert plates. (popup.stage: Розробка долота ріжучої дії діаметром 292,9 мм, оснащеного алмазно-твердосплавними пластинами). Ivano-Frankivsk Nstional Technical University of Oil and Gas. № 0309U000748
1 documents found

Updated: 2026-03-19