Naslov
Reduction of cost and time consumption in well-construction

Autori
Zelenika, Mladen ; Soldo, Božo

Izvornik
Rudarsko-geološko-naftni zbornik (0353-4529) 10 (1998); 97-102

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, stručni

Ključne riječi
bušaće dlijeto; metoda bulenja; zdenac; filter; kolona; konstrukcija zdenca; promjer zdenca
(drilling bit; drilling method; well; screen; cwing; design of well; well diameter)

Sažetak
A Contractor usually utilizes the available drilling equipment when constructing just one s~nglew ell. Drilling cost and time consumption in constructing the well MB-1, using the percussion method, and the well MB-2, using the conventional rotary drilling method, call for a separate analysis in order to justify the investment cost for the acquisition of additional equipment for a single well only. The wells, located in a karst vrtah close to an estavelle near Tomislavgrad, with a diameter of 500 mm and approximately 80 m deep, have been accomplished with a low rate of penetration using the conventional Cable tool and rep. Rotary Drilling Method. In this aper results of analyses for the given ciraumtances a n shown: both tge efficiency and cost of the mentioned drilling methods performed by the crew of ~Geotehnika d.d.cc Zagreb, as well as the justifiability of investments in new equipment are evaluated.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo

POVEZANOST RADA