Drilling and Excavation Technologies for the Future (1994) / Chapter Skim
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10. Conclusions
10. Conclusions
Pages 151-156
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From page 151... ...
Although incremental improvements in the component processes in the present state of the art can continue to make drilling more productive, it is the basic conclusion of this committee that revolutionary advances are within reach Trough the introduction and concerted development of smart Jri~ir~g systems. A smart drilling system is one that is capable of sensing and adapting to conditions around and ahead of the drill bit to reach desired targets.
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From page 152... ...
Development of precise connections between measurable properties and local drilling resistance: Such connections must be established based on the existing understanding of the connection between rock constitution and comminution mechanisms. Many physical and microstructural properties such as porosity, elastic properties, and wave attenuation can be measured locally.
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From page 153... ...
, according to local conditions, is necessary to optimize rock breakage and rock removal. This will require precise information at the bit-rock interface office rock breaking mechanism, rock strength, pressure, temperature, and stress state.
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From page 154... ...
Such additional R&D should focus on the following problems: · novel drilling technology, with a focus on the physics of rock removal to reduce energy requirements for drilling; · improved cutter materials and bearings; · improved bits for drilling in heterogeneous materials; · development of environmentally benign drilling fluids; and · development of durable, compact, high-power downhole motors for directional and extended reach drilling. This R&D program should be a national effort.
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From page 155... ...
CONCLUSIONS 155 tine structure that combines the discipline, mission orientation, and flexibility needed to nurture the required scientific and technological innovations. Although the committee discussed a number of possible administrative structures, it ultimately concluded that recommendations in this area were outside its task and expertise.
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