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master's thesis
Torzija i nateg kod usmjerenog bušenja
diplomski rad
Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2015. urn:nbn:hr:169:754869
Šegota, Matea
University of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
Department of Petroleum and Gas Engineering and energy

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Šegota, M. (2015). Torzija i nateg kod usmjerenog bušenja : diplomski rad (Master's thesis). Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:169:754869

Šegota, Matea. "Torzija i nateg kod usmjerenog bušenja : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2015. https://urn.nsk.hr/urn:nbn:hr:169:754869

Šegota, Matea. "Torzija i nateg kod usmjerenog bušenja : diplomski rad." Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, 2015. https://urn.nsk.hr/urn:nbn:hr:169:754869

Šegota, M. (2015). 'Torzija i nateg kod usmjerenog bušenja : diplomski rad', Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, accessed 16 April 2024, https://urn.nsk.hr/urn:nbn:hr:169:754869

Šegota M. Torzija i nateg kod usmjerenog bušenja : diplomski rad [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering; 2015 [cited 2024 April 16] Available at: https://urn.nsk.hr/urn:nbn:hr:169:754869

M. Šegota, "Torzija i nateg kod usmjerenog bušenja : diplomski rad", Master's thesis, University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:169:754869

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Metadata
TitleTorzija i nateg kod usmjerenog bušenja : diplomski rad
Title (english)Torque and drag in directional drilling : master’s thesis
AuthorMatea Šegota
MentorZdenko Krištafor (mentor)
Committee memberZdenko Krištafor
Committee memberNediljka Gaurina-Međimurec
Committee memberBorivoje Pašić
GranterUniversity of Zagreb
Faculty of Mining, Geology and Petroleum Engineering
(Department of Petroleum and Gas Engineering and energy)
Zagreb
Defense date and country2015-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mining, Petroleum and Geology Engineering
Petroleum Mining
Abstract
Prekomjerne vrijednosti torzije i natega mogu uzorkovati negativne posljedice na sam tijek izrade usmjerenih bušotina. Pretpostavka kod usmjerenog bušenja jest da su i torzija i nateg posljedica uglavnom trenja koje se javlja između niza bušaćeg alata i stijenki kanala bušotine. Modeliranje i predviđanje vrijednosti torzije i natega temelji se na dva osnovna modela: standardnom analitičkom modelu te numeričkom modelu koji se temelji na metodi konačnih elemenata. Isto tako, moguće je primijeniti određene postupke u cilju smanjenja prekomjernih vrijednosti torzije i natega. Ti postupci uključuju korištenje alata manje težine, uporabu podmazivača te mehaničkih alatki za smanjenja trenja.
Abstract (english)
Abstract: Excessive values of torque and drag can cause negative outcome regarding to proces of drilling directional wells. Speaking about directional drilling, the main assumption is that both: torque and drag, are effect of frictional force caused by contact between drillstring and wellbore. Mathematical modeling and predicting the values of those two parameters is based on two basic models: standard analytic and numerical model. Numerical model is based on finite element analysis. As well, it is possible to apply specific procedures in order to reduce excessive values of torque and drag. Those procedures include: usage of lighter drilling tools, usage of industrial lubricants and mechanical tools for reducing the friction.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:169:754869
Study programmeTitle: Petroleum Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka naftnog rudarstva (magistar/magistra inženjer/inženjerka naftnog rudarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryFaculty of Mining, Geology and Petroleum Engineering Repository, University of Zagreb
Created on2016-01-13 13:45:51

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