Open AccessOptimized design of new composite drill
Author(s) -
Zongxi Bai
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/558/2/022038
Subject(s) - drilling , drill , drill bit , composite number , bit (key) , petroleum engineering , mechanical engineering , engineering , geology , structural engineering , computer science , computer security , algorithm
In drilling engineering, the timeliness of the drill bit is very important, which affects the drilling speed and drilling cost. This paper starts from the rock breaking mechanism of the drill bit and the feedback of on-site construction, and analyzes the relative position of the composite drill bit PDC blade-roller For the impact of mechanical drilling speed and load distribution, a new type of composite drill bit was optimized and designed to form a two-level cutting composite drill bit. The new composite drill is designed for two-stage cutting mode. The stepped wellbore after two-stage cutting produces an equivalent steering angle, which can effectively reduce local head loss. The new composite drill bit can increase the mechanical drilling speed, reduce the cost of oil and gas extraction, and adapt to the future drilling dynamic needs.