Open AccessProgress of automatic vertical drilling systems: selection for deep wells with high temperature and pressure in China
Author(s) -
Wenping Sun,
Weiqiang Song,
Hongjian Ni,
Erbiao Lou,
Sun Xue,
Shichuan Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1965/1/012016
Subject(s) - drilling , borehole , reliability (semiconductor) , scope (computer science) , measurement while drilling , high pressure , mechanical engineering , computer science , geology , engineering , petroleum engineering , geotechnical engineering , engineering physics , power (physics) , physics , quantum mechanics , programming language
Based on the working principles of various automatic vertical drilling systems (VDS), they are divided into rotary-pushing type and slide-pushing type. Then, the technical advantages and applicable scope of the two types VDS are analysed. Thirdly, the reliability of different VDS is presented based on the latest application statistical data. Fourthly, suitable VDS are selected for a certain deep well with high temperature and pressure. Finally, the development trend of the VDS is predicted based on the analysis of typical application cases. The results show that, the existing VDS could almost meet the technical needs of rapid drilling in the middle-deep sections with high formation dip angle, although the reliability of electronic components and wear resistance of the push pad still need further improvement. New type VDS, that is miniaturized (suitable for small boreholes) and resistant to high temperature and high pressure, is in urgent need to fill the gaps in the market segment recently. Domestic independent VDS have made great progress in achieving the technical goal of anti-inclination, some even surpasses imported products in key indicators such as temperature resistance. The research results can provide support for the drilling company to optimize the VDS based on engineering-geological conditions.