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  • ...ell under city.svg|thumb|352x352px|One of the reasons causing the onset of directional drilling is to reach hydrocarbons lying beneath highly populated areas, suc ...e well straight so that exploration and production costs are minimized and tools and [[Dictionary:Casing|casing]] can be dropped into the borehole with ease
    11 KB (1,649 words) - 14:11, 4 January 2018