REDUCTION OF COST AND TIME CONSUMPTION IN WELL-CONSTRUCTION
Item
Title (Dublin Core)
eng
REDUCTION OF COST AND TIME CONSUMPTION IN WELL-CONSTRUCTION
hrv
SMANJENJE TROŠKOVA I UTROŠENOG VREMENA PRI IZRADI ZDENACA
Description (Dublin Core)
eng
A Contractor usually utilizes the available drilling equipment when constructing just one single well. 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 vrtača 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 resp. Rotary Drilling Method. In this paper results of analyses for the given circumstances are shown: both the efficiency and cost of the mentioned drilling methods performed by the crews of »Geotehnika d.d.« Zagreb, as well as the justifiability of investments in new equipment are evaluated.
hrv
Izvoditelj obično rabi raspoloživo bušaće postrojenje i alatke za bušenje pojedinačnog zdenca. Troškovi i trajanje izvedbe zdenaca MB-1 udarnom metodom i MB-2 rotacijskom metodom bušenja zahtijevaju posebnu analizu radi procjene opravdanosti investiranja u nabavu dodatne opreme za izvedbu pojedinačnih zdenaca u danim uvjetima. Ovi zdenci, 500 mm promjera i približno 80 m dubine, locirani su u krškoj vrtači u blizini estavele kod Tomislavgrada i nisu učinkovito izvedeni klasičnim postrojenjima udarne BM-l, niti rotacijske metode bušenja BM-2. Ovdje se daju rezultati analiza učinaka i troškova izvedbe zdenaca načinima koje su iskušale bušaće ekipe poduzeća »Geotehnika d.d.« Zagreb te opravdanost investiranja u nabavu dodatne opreme.
Creator (Dublin Core)
Zelenika, Mladen
Soldo, Božo
Subject (Dublin Core)
eng
drilling bit;drilling method;well;screen;casing;design of well;well diameter
hrv
dlijeto;metoda bušenja;zdenac;filter;kolona;konstrukcija zdenca;promjer zdenca
Publisher (Dublin Core)
Faculty of Mining, Geology and Petroleum Engineering University of Zagreb
Date (Dublin Core)
1998
Type (Dublin Core)
text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://hrcak.srce.hr/13475
eng
https://hrcak.srce.hr/file/20677
Source (Dublin Core)
Rudarsko-geološko-naftni zbornik
ISSN 1849-0409 (Online)
Volume 10
Issue 1
Language (Dublin Core)
eng
Rights (Dublin Core)
info:eu-repo/semantics/openAccess
The author and publisher rights are visible during the submission process, and ethical codex is available at http://hrcak.srce.hr/ojs/index.php/rgn/about/editorialPolicies#custom-0 .
The Bulletin is open access (OA, green model, CC-BY) journal what means that electronic versions of articles are accessible to readers, without any fees or registration.When use, please refer to Creative Commons license (BY type, http://creativecommons.org/licenses/by/4.0/ ).
Publisher copyright policies & self-archiving is also described at Sherpa organisation web (RoMEO service) based at the University of Nottingham (http://www.sherpa.ac.uk/romeo/pub/2374/).
All volumes of the Bulletin (from 1989) are available at Hrčak journal pages (http://hrcak.srce.hr/rgn-zbornik?lang=en).
The Bulletin is open access (OA, green model, CC-BY) journal what means that electronic versions of articles are accessible to readers, without any fees or registration.When use, please refer to Creative Commons license (BY type, http://creativecommons.org/licenses/by/4.0/ ).
Publisher copyright policies & self-archiving is also described at Sherpa organisation web (RoMEO service) based at the University of Nottingham (http://www.sherpa.ac.uk/romeo/pub/2374/).
All volumes of the Bulletin (from 1989) are available at Hrčak journal pages (http://hrcak.srce.hr/rgn-zbornik?lang=en).