Performance evaluation of a biomaterial in an aqueous based drilling mud at high pressure high temperature
Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Canadian Research & Development Center of Sciences and Cultures
Abstract
Oil reserves are found in deep formations where the conditions of temperature and pressure are always high. These conditions have direct effects on the rheological properties of drilling fluid as they vary with increasing temperatures and pressures. Two sets of experiment were carried out on weighted and unweighted mud samples at a temperature of 250o F and 500psi pressure. The presence of locally sourced additives helped the mud to remain pseudoplastic at these conditions and also retained essential properties of the mud need for drilling operations. The plastic viscosities of the weighted and unweighted mud were 36cP and 27cP respectively. The yield stresses were 149lb/1002 ft and 110lb/1002 ft for the weighted and unweighted samples while the fluid loss volumes were approximately equal. The thickness of the cake for the weighted sample is 3.7mm and 4mm for the unweighted sample. The weighted sample with a reasonably higher PV has a better hole cleaning ability than the unweighted sample. Mucunna Solannie performed excellently to retain the essential properties of these formulations at 250o F and is therefore recommended as a HPHT drilling mud additive.
Description
This article contains figures and tables
Keywords
HPHT, mucunna solannie, deep formations, HPHT filter press, Department of Petroleum Engineering
Citation
Duru, U. I., Onyejekwe, I. M., Uwaezuoke, N. & Isu, D. O. (2019). Performance evaluation of a biomaterial in an aqueous based drilling mud at high pressure high temperature. Advances in Petroleum Exploration and Development, 17(1), 100 - 104