«Onshore and offshore oil and gas well construction»

Study of the efficiency of motorized rotary drilling technology

UDC: 622.24
DOI: 10.33285/0130-3872-2023-3(363)-5-10

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: oil and gas wells drilling, motorized rotary drilling, top power drive, rotary steerable system, screw downhole motor, Stick-Slip drill string vibration

Annotation:

The features of the motorized rotary drilling technology based on the combined use of a rotary controlled system and a screw downhole motor are considered. The advantages and disadvantages of this technology are discussed. It is shown that the use of a motorized rotary steerable system equipped by a screw motor provides an increase of the mechanical penetration rate and an improvement of the technical-economic indicators of drilling due to by increasing the bit rotation frequency increase. The results of experimental studies of the drill string vibrations are presented. It is shown that the vibration level decreases when drilling a well using a motorized rotary steerable system, which can be explained by the decrease of Stick-Slip effect influence. Speed control of the top power drive of the drilling rig when drilling with the help of a motorized rotary steerable system makes it possible to compensate for the wear of the screw motor, to provide a close to constant bit rotation speed and increase the average ROP.

Bibliography:

1. "Gazprom neft'" podtverdila nadezhnost' rossiyskoy rotorno-upravlyaemoy sistemy dlya bureniya skvazhin. – 2020. – URL: https://www.rogtecmagazine.com/газпром-нефть-подтвердила-надежно/?lang=ru (data obrashcheniya 13.08.2021).
2. Zakirov A.Ya. Pervye rezul'taty ispytaniy rotorno-upravlyaemykh ushi rossiyskogo proizvodstva // PROneft'. Professional'no o nefti. – 2016. – № 2(2). – S. 43–47.
3. Simonyants S.L., Al'-Tii M. Primenenie motorizovannogo rotornogo bureniya dlya uvelicheniya skorosti uglubleniya skvazhiny // Stroitel'stvo neftyanykh I gazovykh skvazhin na ushi I na more. – 2020. – № 8(332). – S. 26–29. – DOI: 10.33285/0130-3872-2020-8(332)-26-29
4. Simonyants S.L., Al'-Tii M. O vrashchenii buril'noy kolonny pri rabote vintovogo zaboynogo dvigatelya s dolotom // Vestn. Assots. burovykh podryadchikov. – 2019. – № 3. – S. 45–48.
5. Balitskiy V.P., Zaykov D.L. Analiz krutil'nykh kolebaniy buril'noy kolonny – "Stick-Sup" effekta I ego vliyaniya na protsess bureniya // Vestn. Assots. burovykh podryadchikov. – 2015. – № 4. – S. 2–8.