TECHNO – ECONOMIC ACCEPTABILITY ANALISYS OF WASTE DISPOSAL BY INJECTION INTO APPROPRIATE FORMATION

• Main Authors: Vladislav Brkić, Daria Karasalihović Sedlar
• Format: Article
• Language: English
• Published: Faculty of Mining, Geology and Petroleum Engineering 2013-12-01
• Series: Rudarsko-geološko-naftni Zbornik
• Subjects: petroleum waste; waste disposal into appropriate formation; technical and technological analysis of the project; financial and economic analysis of the project
• Online Access: http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=165695&lang=en

During exploration and production of oil and natural gas, various types of waste must be disposed in a permanent and safe way. There is a range of methods for processing and disposal of waste, such as disposal into landfills, solidification, namely chemical stabilization, thermal processing, appropriate formation injections uncovered by a deep well, disposal into salt domes and bioremediation. The method of waste disposal into appropriate formations is a method where strict geological and technical criteria must be satisfied when applied. A fundamental scientific hypothesis has been formulated whereby economic acceptability of the waste injection method, as a main method for waste disposal, is to be shown by an economic evaluation. The results of this research are relevant since there has been an intention in Croatia and worldwide to abandon wells permanently due to oil and gas reservoirs depletion and therefore it is essential to estimate economic impacts of the waste injection method application. In that way, profitability of using existing wells for waste disposal in oil industry has been increased, leading to the improvement of petroleum company’s business activities (the paper is published in Croatian).