Drilling Machines
نویسندگان
چکیده
منابع مشابه
Performance analysis of drilling machines using rock modulus ratio
Rotary drills, diamond drills and percussive drills have been extensively used in open pits, quarries and construction sites. The prediction of the penetration rate of drilling machines is very important in the cost estimation and the planning of the rock excavation projects. The rock modulus ratio, which is the ratio of elastic modulus to compressive strength, indicating the deformability, is ...
متن کاملIntelligent Analysis of Utilization of Special Purpose Machines for Drilling Operations
Drilling and drilling-related operations constitute more than 60% of all machining processes in manufacturing industries. Consequently, it is important to know how to perform these operations properly. With availability of many machining processes capable of performing drilling operations sometimes it is difficult to decide which process would result in a higher profit or a lower unit cost for ...
متن کاملDrilling through salt Risks associated with drilling through salt
Source: Franz Kockel et al. (1996) Geotektonischer Atlas von NVV Deutschland Bundesanstalt für Geowissenschalten und Rohstoffe, Hannover. In recent years, an increasing number of oil and gas projects involving drilling through salt have been presented by different exploration companies. It is important for underwriters, lawyers, regulators, financiers and engineers to have a clear understanding...
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The continuous development of global economy with decreasing in available hydrocarbon sources and increasing discovery and extraction costs due to decrease in-situ oil and gas reservoir, displays the necessity of using new techniques for the improve rate of penetration and productivity in well. Nanotechnology has already contributed significantly to technological advances in the energy industri...
متن کاملDeep drilling moves ahead
Deep-water drilling in the Gulf of Mexico could resume within weeks under a policy by the US government, which has come under increasing criticism from the oil industry and politicians in the region over the impact of the drilling halt and worries from scientists that the full impact has not yet been assessed. Oil and gas exploration in the gulf’s deep waters has been stopped since May, when Ob...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1876
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09091876-582asupp