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primary topic: Synthesis and optimization of 2-ethylhexyl ester as base oil for drilling fluid formulation

Synthesis and optimization of 2-ethylhexyl ester as base oil for drilling fluid formulation
type: AcademicArticle
type: Article
abstract: A stable ester was synthesized to overcome the ester hydrolysis problem during the drilling of oil or gas wells using a conventional ester-based drilling fluid. The thermal and hydrolytic stability of the produced ester was high owing to the transesterification method employed in this study. The reaction was performed using 2-ethylhexanol and methyl laureate esters in the presence of sodium methoxide as a catalyst. In order to obtain the optimum synthesis conditions, a response surface methodology (RSM) was appraised based on the central composite design (CCD). The optimum conditions were determined as follows: 0.6 wt. catalyst, 70°C reaction temperature, 1:1.5 molar ratio, and 11.5 min of reaction time. The results of 77 wt. 2-ethylhexyl ester (2-EH) illustrated a high agreement between the experimental and RSM models. The reaction product contained 77 wt. 2-EH and 23 2-ethylhexanol. The kinematic viscosity was 5mm2/s at 40°C and 1.5mm2/sec at 100°C; the specific gravity was 0.854, flash point was 170°C, and pour point was -7°C. The produced product showed similar properties to the available commercial product. However, it was observed that the mud formulation using the synthesized base oil had superior rheological properties at 121°C. © Taylor & Francis Group, LLC.
date: 2016
volume: 203
issue: 4
is part of: Chemical Engineering Communications
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Taylor and Francis Ltd.
type: Organization

Chemical Engineering Communications
type: Collection
issn: 00986445

R. Yunus
type: Person
given name: R.
family name: Yunus

S. Irawan
type: Person
given name: S.
family name: Irawan

L. Jassim
type: Person
given name: L.
family name: Jassim

U. Rashid
type: Person
given name: U.
family name: Rashid

S.A. Rashid
type: Person
given name: S.A.
family name: Rashid

M.A. Salleh
type: Person
given name: M.A.
family name: Salleh

F. Ghaemi
type: Person
given name: F.
family name: Ghaemi

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primary topic: Synthesis and optimization of 2-ethylhexyl ester as base oil for drilling fluid formulation