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Drilling
About: Drilling is a research topic. Over the lifetime, 31604 publications have been published within this topic receiving 268903 citations.
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4,094 citations
Book•
01 Jan 1986
TL;DR: In this paper, the authors present petroleum engineering science fundamentals as well as example engineering applications involving those fundamentals, including rotary drilling, drilling fluids, cements, drilling hydraulics, rotary-drilling bits, formation pore pressure and fracture resistance, casing design, directional drilling, and deviation control.
Abstract: This printing includes corrections made since the original publication in 1986. The text presents petroleum engineering science fundamentals as well as example engineering applications involving those fundamentals. Subjects covered include rotary drilling, drilling fluids, cements, drilling hydraulics, rotary-drilling bits, formation pore pressure and fracture resistance, casing design, directional drilling, and deviation control.
1,003 citations
Patent•
[...]
29 Sep 1995
TL;DR: A rotary drill bit for use in drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, a number of blades formed on the leading face of the bit and extending outwardly away from the axis of a bit so as to define between the blades the number of fluid channels leading towards the gauge region as discussed by the authors.
Abstract: A rotary drill bit for use in drilling holes in subsurface formations comprises a bit body having a leading face and a gauge region, a number of blades formed on the leading face of the bit and extending outwardly away from the axis of the bit so as to define between the blades a number of fluid channels leading towards the gauge region, a number of cutting elements mounted side-by-side along each blade, and a number of nozzles in the bit body for supplying drilling fluid to the fluid channels for cleaning and cooling the cutting elements. In each of the fluid channels, adjacent the gauge region, is an opening into an enclosed passage which passes internally through the bit body to an outlet which, in use, communicates with the annulus between the drill string and the wall of the borehole being drilled. The gauge region of the drill bit comprises a substantially continuous bearing surface which extends around the whole of the gauge region.
720 citations