Drilling and Excavation Technologies for the Future (1994) / Chapter Skim
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1. Executive Summary
1. Executive Summary
Pages 1-6
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From page 1... ...
The target may be a small feature at considerable depth or increasingly particularly in petroleum industry applications at substantial horizontal distances from the drilling site. The paramount objectives of~rilling are to reach the target safely in the shortest possible time and at the lowest possible cost, win additional sampling and evaluation constraints dictated by the particular application.
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From page 2... ...
. A long-term R&D effort could provide significant improvements in drilling technology Trough advances in understanding basic physical and chemical processes related to rock breaking and rock removal, and particularly through the development of flexible smart drilling systems incorporating improvements in sensing and guidance of autonomously advancing drilling units.
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From page 3... ...
The development of a smart system will require concerted technological advances in several areas, including the following: . Development of precise connections between measurable properties and local driving resistance: Such connections must be established based on the existing understanding of the connection between rock constitution and comminution mechanisms.
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From page 4... ...
· Development of control systems for accurate positioning and steering of the drill bit and for automatically adjusting drilling parameters (e.g., load and torque on the drill string, flow rates of drilling muds and fluids) , according to local conditions, is necessary to optimize rock breakage and rock removal.
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From page 5... ...
Such additional R&D should focus on the following problems: Novel driRing technology, with a focus on the physics of rock removal to reduce energy requirements for drilling: Hybrid systems Mat combine novel technologies to lower the drilling resistance of the rock and mechanical methods (e.g., fluid jets coupled with conventional rotary technologies) to break and remove the rock are especially promising.
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From page 6... ...
Attainment of He proposed enhanced drilling capabilities Trough both short-term and long-term R&D requires a long-range administrative structure Hat combines He discipline, mission orientation, and flexibility needed to nurture He 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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