Utiskivanje otpadnih fluida pri tlaku frakturiranja

master's thesis

• Title: Utiskivanje otpadnih fluida pri tlaku frakturiranja : diplomski rad
• Title (english): Fracture injection of waste fluids : master's thesis
• Author: Borna Kolarek
• Mentor: Nediljka Gaurina-Međimurec (mentor)
• Committee member: Nediljka Gaurina-Međimurec (predsjednik povjerenstva)
• Committee member: Borivoje Pašić (član povjerenstva)
• Committee member: Vladislav Brkić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Petroleum and Gas Engineering and energy); Zagreb
• Defense date and country: 2020-02-14, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Utiskivanje otpadnih fluida u podzemlje jedna je od metoda zbrinjavanja otpada koji nastaje u procesima istraživanja i proizvodnje ugljikovodika. Postupak utiskivanja s frakturiranjem stijena podrazumijeva odlaganje kašastog otpada u umjetno stvorene pukotine u slabo propusnim formacijama. U radu je obrađen cijeli proces utiskivanja, počevši od odabira utisne formacije, preko pripreme otpada za utiskivanje i analize tlakova koji se javljaju prilikom utiskivanja, do monitoringa. Na početku samog procesa vrlo je važno pravilno odabrati utisnu formaciju kako bi se spriječila migracija utisnutog otpada prema podzemnim izvorima pitke vode. Također, važno je napraviti kvalitetnu strategiju monitoringa kako bi se na vrijeme mogli uočiti eventualni problemi u procesu. Najvažniji dio ovog rada predstavlja analiza 19 članaka koja je obuhvatila utiskivanja kašastog otpada koja su provođena u posljednjih 30 godina. U toj analizi obrađeni su uvjeti u formacijama u koje se utiskuje otpad, svojstva kašastog otpada i parametri utiskivanja. Zaključeno je da utiskivanje otpada u podzemlje predstavlja najbolju metodu za trajno zbrinjavanje otpada iz naftnog rudarstva s obzirom na brojne ekološke prednosti u odnosu na druge metode zbrinjavanja.

Abstract (english)

Waste injection is one of the methods of managing waste created while drilling for and producing hydrocarbons. Slurry fracture injection encompasses the disposal of slurry into artificially created fractures within low-permeability formations. This thesis analyses the entirety of the injection process – from methods of selecting adequate formations for injection and preparing waste for injection, to analysing various pressures and general monitoring. It is of paramount importance to correctly choose the adequate formation to avoid upward migration of injected waste which is dangerous for shallow water sources. Also, it is of highest importance to define a good monitoring strategy, so that any possible problems might be prevented. The core of this thesis is the analysis of 19 different articles, which deal with the utilization of slurry fracture injection in the last 30 years. This analysis addresses the conditions in the formations chosen for injection, slurry properties and injection parameters. Finally, the conclusion presents all the advantages of waste injection.

• Keywords: utiskivanje; kašasti otpad; fraktura
• Keywords (english): injection; slurry; fracture
• Language: croatian
• URN:NBN: urn:nbn:hr:169:095868
• Study programme: Title: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering; Course: Environmental protection in 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-03-05 14:18:08