Effects of Drilling Mud Contamination on the Properties of Waxy Crude Oil

Authors

• Azuraien Japper-Jaafar, Universiti Teknologi PETRONAS, Malaysia
• Petrus Tri Bhaskoro, Universiti Teknologi PETRONAS, MalaysiaFollow
• Muhammad Hassanei Heykal Azmi, Universiti Teknologi PETRONAS, Malaysia
• Mior Zaiga Sariman, GTS/PD&T, PETRONAS Sdn. Bhd., Kuala Lumpur, Malaysia
• Rohaizad Norpiah, GTS/PD&T, PETRONAS Sdn. Bhd., Kuala Lumpur, Malaysia
• Muhamad Hazri Shahpin, Universiti Teknologi PETRONAS, Malaysia

Keywords

Drilling mud contamination, waxy crude oil properties, yield stress

Document Type

Research Article

Abstract

Contamination of crude oil with drilling mud normally occurs during drilling process. The contamination may change the properties of crude oil leading to inaccurate assessment of the first extracted crude oil. Incorrect prediction of crude oil properties and behavior will subsequently lead to under- or over-designing of the upstream and midstream facilities. Therefore, the work aims to investigate the effects of drilling mud contamination on waxy crude oil properties such as pour point temperature, wax appearance temperature (WAT) and the yield strength of the waxy crude oil gel. Measurements conducted on the drilling mud contaminated mixture show no effect on the pour point, minimal changes to the WAT and considerable increase to the viscosity and yield stress values. Bottle test results indicate that drilling mud free oil layer which should be used in characterizing the crude oil exist only after 24 hours of gravity settling.

html

Recommended Citation

Japper-Jaafar, Azuraien; Tri Bhaskoro, Petrus; Heykal Azmi, Muhammad Hassanei; Sariman, Mior Zaiga; Norpiah, Rohaizad; and Shahpin, Muhamad Hazri (2018) "Effects of Drilling Mud Contamination on the Properties of Waxy Crude Oil," Platform: A Journal of Engineering (PAJE): Vol. 2: Iss. 1, Article 1.
Available at: https://journal.utp.edu.my/paje/vol2/iss1/1

Publication Date

30-4-2018

First Page

2

Last Page

14