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Nafta Scientific journal, Vol.63 No.9-10 October 2012.

Original scientific paper

Prediction of Formation Water Properties Using a Novel Predictive Tool Approach and Vandermonde Matrix

Alireza Bahadori ; Environmental Innovations Research Centre, School of Environmental Science & Management, Southern Cross University, PO Box 157, Lismore, New South Wales, 2480, Australia

Fulltext: pdf (992 KB), English, Pages 289 - 298 , downloads: 170 *
Fulltext: pdf (99 KB), Croatian, Pages 299 - 306 , downloads: 101 *

Abstracts
Production of wet crude due to the raise in oil-water contact in many oil fields has been a growing field problem and consequently production of salty wet crude affects the quality of crudes. In this work a simple method using Arrhenius-type function and Vandermonde matrix is presented for estimation of formation water properties for temperatures above 30 °C and salt contents between 5 and 25% by mass. Estimations are found to be in excellent agreement with the reliable data in the literature with average absolute deviation varying between 0.08 to 2.7%. The method developed in this study is of immense practical value for petroleum engineers and practice engineers for a quick check on the formation water properties at various conditions without opting for any experimental measurements. In particular chemical and petroleum engineers would find the proposed approach to be user-friendly with transparent calculations involving no complex expressions.

Keywords
formation water; correlation; production engineering; mathematical modelling

[Croatian]

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