Repository logo

Browsing by Subject "borehole method"

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Bases of intensive extraction of coalbed methane after hydrofracturing process
    (2006) Vasyuchkov, Ûrij Fedorovič
    The report is notificated important question about planning active influence process on the methane-giving back from a coal seam through a borehole to the surface. The gas-giving back surface of the coal seam is introduced in a practice and methane-obtaining index too. The filtrating and time indexes I are discussed in the report. The conclusion from the researching work is done.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Techniczne uwarunkowania składowania odpadów płynnych w górotworze metodą otworową
    (2006) Macuda, Jan; Zawisza, Ludwik
    Liquid waste storage in the rock mass through injection wells is conditioned by all requirements imposed on safe mining and environmental protection. This issue is especially important when closed or to-be-closed wells are involved. Selection criteria for injection wells are presented along with principles of wells' design, and range of geophysical surveys of post-exploitation wells, which were designated for injecting liquid waste. Potential complications and drilling failures accompanying waste injection to the rock mass are also pointed out.