Održavanje bušotina s ušćem na morskom dnu bez primjene niza usponskih cijevi

master's thesis

• Title: Održavanje bušotina s ušćem na morskom dnu bez primjene niza usponskih cijevi : diplomski rad
• Title (english): Riserless light well intervention : master's thesis
• Author: Luka Džepina
• Mentor: Borivoje Pašić (mentor)
• Committee member: Borivoje Pašić (predsjednik povjerenstva)
• Committee member: Zdenko Krištafor (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

Postupak održavanja bušotina bez niza usponskih cijevi razvijen je kako bi se omogućilo održavanje bušotina u odobalju kojima je ušće smješteno na dnu mora uz smanjenje ukupnih troškova održavanja i povećanje sigurnosti za ljude i okoliš. Pri izvođenju ovog postupka ne koristi se niz usponskih cijevi kroz koji bi se obavljala komunikacija između kanala bušotine i plovila koje obavlja radove, već se sklopovi alata spuštaju pomoću čeličnih kabela kroz otvoreno more. Posebno dizajniran sklop opreme koji se spaja s ušćem bušotine sastoji se od sklopa za kontrolu tlaka u bušotini, lubrikatorskog sklopa i glave za kontrolu tlaka te omogućava rukovanje alatkama uz istovremeno kontroliranje tlaka u bušotini. Ovaj postupak moguće je primijeniti za izvođenje širokog spektra radova održavanja bušotina poput uklanjanja kamenca i postavljanja čepova te se njezina upotreba sve više intenzivira.

Abstract (english)

Riserless light well intervention method was developed to ensure a new, less expensive and more secure, in terms of HSE, way of doing intervention work on subsea wells. Method does not use marine riser to ensure communication between intervention vessel and the well, but instead uses steel cables to transfer tools through open water. Equipment used in this method consists of well control package, lubricator section and pressure control head and enables tool running while providing pressure barrier. Method can be used for large variety of intervention works such as scale milling and setting plugs and it is being used more common around the world.

• Keywords: održavanje bušotina; niz usponskih cijevi; čelični kabel; lubrikatorski sklop; kontrola tlaka bušotine
• Keywords (english): well intervention; marine riser; steel cable; lubricator section; pressure control
• Language: croatian
• URN:NBN: urn:nbn:hr:169:632585
• Study programme: Title: Petroleum engineering; specializations in: Petroleum engineering, Energy production and supply, Environmental protection in petroleum engineering; Course: 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 14:11:31