«Onshore and offshore oil and gas well construction»

Drill bits operation dynamic coefficient as a factor, limiting the area of their application

UDC: 622.24(075)
DOI: -

Authors:

¹ Ufa State Petroleum Technical University, Ufa, Russia

Keywords: dynamic coefficient, intensity of rock destruction, PDC bits dynamic mechanism, clarification of bit types choice, rock cutting tool

Annotation:

The relevance of the study is caused by the necessity of clarifying the choice of rock cutting tools in case of information in sufficiency about its operating conditions. The nature of PDC bits dynamic operation has been revealed. Bench drilling by using roller-cutter drill bits and PDC bits proved the fact that the dependence of the bit operation dynamic coefficient on the penetration per its single revolution (the intensity of rock destruction) is significant and close to hyperbolic one. It is proposed to use rock destruction intensity and the dynamic coefficient to quickly check the compliance of the types of bits used with the drilled rock during the drilling process in terms of the minimum intensity values and the normalized maximum value of the dynamic coefficient.

Bibliography:

1. Yunin E.K. Avtokolebaniya v glubokom burenii. – M.: LIBROKOM, 2013. – 264 s.
2. Tekhnologiya bureniya neftyanykh i gazovykh skvazhin: ucheb. dlya studentov vuzov: v 5 t. T. 1 / pod obshch. red. V.P. Ovchinnikova. – Tyumen': TIU, 2017. – 576 s.
3. Sinev S.V. Sharoshechnoe doloto kak istochnik kolebaniy buril'noy kolonny // Str-vo neftyanykh i gazovykh skvazhin na sushe i na more. – 2016. – № 11. – S. 24–31.
4. Popov A.N. Razrushenie gornykh porod: ucheb. posobie. – M.; Vologda: Infra-Inzheneriya, 2021. – 184 s.
5. Akchurin Kh.I., Trushkin O.B. Ustroystva dlya izmereniya i registratsii silovykh parametrov raboty porodorazrushayushchikh instrumentov i buril'nykh kolonn // Avtomatizatsiya, telemekhanizatsiya i svyaz' v neftyanoy prom-sti. – 2008. – № 3. – S. 12–20.
6. Trushkin O.B. Izmerenie nagruzki na rezets PDC pri stendovom burenii // Avtomatizatsiya, telemekhanizatsiya i svyaz' v neftyanoy prom-sti. – 2018. – № 3. – S. 5–10. – DOI: 10.30713/0132-2222-2018-3-5-10
7. Trushkin O.B. Razrushenie gornoy porody edinichnym reztsom PDC // Territoriya Neftegaz. – 2016. – № 5. – S. 16–20.
8. Trushkin O.B., Akchurin H.I. Performance dynamics of PDC cutters used in breaking ductile brittle rock // Nexo Revista Científica. – 2021. – Vol. 34, No. 04. – P. 1490–1498. – DOI: 10.5377/nexo.v34i04.12694
9. Trushkin O.B., Popov A.N. Sravnitel'naya dinamika i energetika bureniya sharoshechnymi dolotami i dolotami PDC // Neftegazovoe delo. – 2013. – T. 11, № 2. – S. 52–54.