Life-Cycle Impact Assessment of oil drilling mud system in Algerian arid area

Autor: Gaetana Quaranta, Mohamed Khodja, Joëlle Duplay, Zoubir Kessaissia, Raja Hadjamor, Hamid Ait Amar, Malika Ghazi
Přispěvatelé: Laboratoire d'Hydrologie et de Géochimie de Strasbourg (LHyGeS), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Ecole et Observatoire des Sciences de la Terre (EOST), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Tunis, SONATRACH, Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB)
Rok vydání: 2011
Předmět:
Zdroj: Resources, Conservation and Recycling
Resources, Conservation and Recycling, Elsevier, 2011, 55, pp.1222. ⟨10.1016/j.resconrec.2011.05.016⟩
ISSN: 0921-3449
DOI: 10.1016/j.resconrec.2011.05.016
Popis: International audience; The objective of this work is to assess the environmental impacts of the drilling mud system in Algeria’sarid region. Water-based mud (WBM) and oil-based mud (OBM) are used during well drilling in HassiMessaoud petroleum field, and have a considerable pollution potential particularly on the aquifer systemwhich constitutes the single resource of drinking water in the Sahara. The Life-Cycle Assessment (LCA)approach is applied to evaluate the impacts of several drilling mud systems across all stages of their lifecycle, e.g. use, treatment and disposal. Environmental impacts of five treatments scenarios correspondingto the drilling waste management applied in Hassi Messaoud are compared: reserve pit without treatment(burial option), secondary high centrifugation (vertical cuttings dryer), stabilisation/solidification online,stabilisation/solidification off line and thermal desorption. The impact assessment is carried on using theLCIA models of Impact 2002+ method in SIMAPRO7 software. This assessment identifies human toxicityand terrestrial eco-toxicity as the major impact categories in this specific arid context and quantifies theemissions contributions. The local environmental impact is the most important of the drilling mud lifecycle and is mainly linked to emissions from reserve pits, treated cuttings, and drilling phase 16 throughthe Turonian and Albian aquifer. The main contributing substances are aromatic hydrocarbons fractionand metals in particular barium, zinc, antimony, arsenic, and aluminium. Concerning the comparison ofthe treatment scenarios, it appears that stabilisation/solidification online is the best one; it has the lowestimpact score in the two dominating categories because of the waste minimisation: mud storage avoidedin the reserve pit. The second best scenario is the thermal desorption which obtains the lowest impactscore in carcinogen effects due to hydrocarbons reduction (
Databáze: OpenAIRE