Utjecaj praha kore mandarine na svojstva isplaka složenog sastava

master's thesis

• Title: Utjecaj praha kore mandarine na svojstva isplaka složenog sastava : diplomski rad
• Title (english): Influence of mandarin peel powder on the filtration and rheological properties of complex water-based drilling muds : master's thesis
• Author: Ivan Mesarić
• Mentor: Borivoje Pašić (mentor)
• Mentor: Igor Medved (komentor)
• Mentor: Bojan Kuhar (pomoć pri izradi, neposredni voditelj)
• Committee member: Borivoje Pašić (predsjednik povjerenstva)
• Committee member: Katarina Simon (član povjerenstva)
• Committee member: Gordana Bilić (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: 2024-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mining, Petroleum and Geology Engineering; Petroleum Mining

Abstract

Uloge isplake pri izradi kanala bušotine su brojne pri čemu je kontrola filtracijskih i reoloških svojstava od ključne važnosti. Aditivi se dodaju u isplaku radi poboljšavanja svojstava. Otpad u naftnom rudarstvu potrebno je ispravno odlagati, te aditivi kao dio isplake često budu štetni za okoliš. U današnje vrijeme provode se brojna istraživanja kako bi se biorazgradivi aditivi implementirali u naftnu industriju. U ovom radu ispitivane su isplake u kojima je kao aditiv korišten prah kore mandarine (PKM) veličine čestica do 0,1 mm. U dvije osnovne isplake na bazi vode, složenog sastava, dodan je prah kore mandarine kao aditiv u različitim koncentracijama. Postupnom promjenom koncentracije karboksimetilceluloze kao glavnog aditiva za kontrolu filtracijskih svojstava i dodavanjem praha kore mandarine kao supstituciju za karboksimetilcelulozu, dobivene su isplake čija su svojstva podvrgnuta ispitivanjima. Rezultati su pokazali da se dodavanjem praha kore mandarine kao aditiva u kombinaciji s karboksimetilcelulozom smanjuje filtracija, dok pri dodavanju 15 g praha kore mandarine u osnovnu isplaku A, u kojoj je koncentracija karboksimetilceluloze 5 g/L, dolazi do smanjenja volumena filtrata za čak 29 % u odnosu na osnovnu isplaku A. Dodavanjem 30 g/L praha kore mandarine u osnovnu isplaku B (drukčijeg sastava s koncentracijom karboksimetilceluloze od 2 g/L) dolazi također do smanjenja volumena filtrata za 29 % u odnosu na osnovnu isplaku B no dolazi i do izraženih promjena reoloških svojstava. Zaključeno je kako prah kore mandarine u različitim koncentracijama utječe na reološka i filtracijska svojstva složenih isplaka, te su najbolji rezultati vidljivi pri kombiniranju standardnog aditiva za kontrolu filtracije karboksimetilceluloze u koncentraciji od 5 g/L i optimalne koncentracije praha kore mandarine veličine čestica do 0,1 mm od 15 g/L. Prah kore mandarine, uz dodatna ispitivanja, ima budućnost kao isplačni aditiv u naftnoj industriji.

Abstract (english)

The roles of drilling fluids are numerous in the drilling operations, where the control of filtration and rheological properties is of key importance. Additives are added to drilling fluids to improve properties. Waste in oil industry must be disposed of properly, and additives as part of the drilling fluids are often harmful to the environment. Nowadays, numerous researches are being carried out in order to implement biodegradable additives in the oil industry. In this paper, drilling fluids were examined in which tangerine peel powder with a particle size of up to 0,1 mm was used as an additive. In two basic water-based drilling fluids, with a complex composition, mandarin peel powder was added as an additive in different concentrations. By gradually changing the concentration of carboxymethylcellulose as the main additive for controling filtration properties and adding mandarin peel powder as a substitution for carboxymethylcellulose, drilling fluids were obtained whose properties were subjected to tests. The results showed that the addition of mandarin peel powder as an additive in combination with carboxymethylcellulose reduces filtration, while adding 15 g of mandarin peel powder in basic drilling fluid A, in which the concentration of carboxymethylcellulose is 5 g/L, results in a decrease in filtrate volume by as much as 29 % compared to basic drilling fluid A. Adding 30 g/L of mandarin peel powder to basic drilling fluid B (of a different composition with a concentration of carboxymethylcellulose 2 g/L) also resultrs in a 29 % decrease in the filtrate volume compared to basic drilling fluid B, but significant changes in rheological properties also occur. It was concluded that mandarin peel powder in different concentrations affects the rheological and filtration properties of the complex drilling fluids, and the best results are visible when combining the standard carboxymethylcellulose filtration control additive in a concentration of 5 g/L and the optimal concentration of mandarin peel powder with particle size up to 0.1 mm of 15 g/L. Mandarin peel powder, with additional tests, has a future as a drilling fluid additive in the oil industry.

• Keywords: isplaka; ispitivanje; filtracijska svojstva; reološka svojstva; prah kore mandarine
• Keywords (english): drilling mud; drilling mud; rheological parameters; filtration; mandarin peel powder
• Language: croatian
• URN:NBN: urn:nbn:hr:169:243961
• 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: 2024-12-17 12:12:22