- Tytuł:
- Percussion-rotary method of drilling large-diameter dewatering wells in ‘Bełchatów’ liginte mine
- Autorzy:
-
Gasiński, J.
Macuda, J.
Kaczmarek, T. - Powiązania:
- https://bibliotekanauki.pl/articles/299123.pdf
- Data publikacji:
- 2016
- Wydawca:
- Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
- Tematy:
-
well
dewatering of rock mass
lignite
drilling wells
downhole hammers - Opis:
- Lignite opencast extraction can be performed after prior dewatering of the rock mass. Most frequently it is realized with large-diameter dewatering wells which have been mostly drilled with the invert mud rotary method and airlift. This method allows for quick drilling in lithologically diversifi ed aquifers, minimizing the negative impact of mud on the near-well zone. When drilling in dewatered carbonate rocks with the stone runs or well developed karst the effi ciency of this method considerably decreases. The technical and technological aspects of use of downhole hammers for drilling large-diameter dewatering wells in diffi cult geological conditions are discussed in the paper. Thanksto the use of this method for drilling wells in ‘Bełchatów’ Lignite Mine the drilling rate could be increased and the number of complications and drilling failures lowered.
- Źródło:
-
AGH Drilling, Oil, Gas; 2016, 33, 3; 571-577
2299-4157
2300-7052 - Pojawia się w:
- AGH Drilling, Oil, Gas
- Dostawca treści:
- Biblioteka Nauki
Artykuł