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Year: 2017Subject: drillingAccess: metadata onlyclear all
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SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

NANOSILICA AS AN ADDITIVE FOR CEMENT SLURRIES USED IN DRILLING WELLS UNDER HIGH TEMPERATURE AND HIGH-PRESSURE CONDITIONS

(STEF92 Technology, 2017-11-20, Piklowska, Anna)

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The mining industry is often faced with great difficulty in drilling deeper and deeper holes in the search for oil and gas. This results in constantly increasing costs and the continuing need to create better materials and technologies to reduce possible losses. Drilling technology must cope with high temperatures and pressures in the hole and other unfriendly environmental conditions. Increasing demands on the properties of the slurry and cement stone force the search for unconventional solutions and materials th...

Ecology and Environmental Protection2017
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publication

OPTIMIZING RELATIONSHIPS BETWEEN COSTS AND REVENUES ON QUARRIES IN THE CZECH REPUBLIC

(STEF92 Technology, 2017-06-20, M.Hummel, Hummelova, I., Repka, V., Gibesova, B., Nabelkova, L.)

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The annual extraction of aggregates in the Czech Republic is between 45 - 50 mega tones. [5]. Many studies for better results of quarries are undertaken. In this paper is solved the question of optimizing. The relationships between different production processes in quarries are very important matter. On the relationships between the manufacturing processes depends the economic effect of operation. The paper presents patterns in the organization of mining, which mutually related. Using computational methods and the...

Exploration and Mining2017
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