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Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field

Khodja, Mohamed and Canselier, Jean-Paul and Bergaya, Faiza and Fourar, Karim and Khodja, Malika and Cohaut, Nathalie and Benmounah, Abdelbaki Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field. (2010) Applied Clay Science, vol. 49 (n° 4). pp. 383-393. ISSN 0169-1317

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Official URL: http://dx.doi.org/10.1016/J.CLAY.2010.06.008

Abstract

Drilling fluid formulation and properties play a fundamental role in drilling operations. Clay minerals behave initially as a beneficial rheological adjuvant in drilling muds. Nevertheless, the contamination of oil reservoirs by clay minerals present in the drilled geological formation (shales) may generate major problems during drilling as plug formation. In this context, our study deals with the optimisation of drilling conditions in the Hassi Messaoud Algerian field. The mineralogical heterogeneity of this field is first discussed. The rheological and filtration characteristics of water-based muds with different polymer and electrolyte concentrations are investigated. The physical and chemical changes of both drilled formation and drilling fluid during the drilling process are studied. Therefore, depending on the clay present in the geological formation, an optimised drilling fluid system using a new filtration procedure is proposed. A good correlation is found between filtration/rheological properties and inhibition.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at : http://www.sciencedirect.com/science/article/pii/S0169131710001705
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Sonatrach (ALGERIA)
Other partners > Université M'Hamed Bougara Boumerdes - UMBB (ALGERIA)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
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Deposited By:Audrey LEFEVRE

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