13
Skikda and Annaba. Three exploration drilling scenarios are simulated taking into account the
drilling fluid circuit in all well sections as well as the management of drilling waste on land.
The estimates were based on field data as well as those from international databases and other
specialized work. (Pettersen 2007, Perry 2005, Sadiq 2003, Neff and al.2000, Ghazi M. and al.
2008, 2011, Riad and al. 2019, Khodja 2008)
The main objective of this study is to assess the potential environmental impacts and risks of
offshore exploration drilling and to compare the environmental benefits of three drilling system
scenarios by identifying areas for improvement. This final study project includes the following
chapters:
- Chapter 1 is devoted to the state of the art concerning offshore oil and gas drilling with a
literature review of the geostrategic, technical, reglementary and environmental aspects
of this type of industrial activity in the marine environment.
- Chapter 2 presents the material and the methodology adopted. First, there is the
description of the study area, including the physico-chemical and biological
characteristics of the marine waters as well as those of the Guerbes-Sanhaja Coastal
Ecocomplex, designated as a Ramsar Zone. Next, the LCA methodology and its
application to the offshore exploration system in the study area are exposed.
- Chapter 3 presents the essential results of the impact and damage analysis caused by well
drilling and the three treatment scenarios of drilling waste.
Finally, a conclusion presents a global and critical vision of the application of LCA to
exploration drilling in the marine area of Skikda, emphasizing the relevance of this method with
the possibility of exploiting its results as a tool to help the decision, while considering its limits
and difficulties.
Skikda and Annaba. Three exploration drilling scenarios are simulated taking into account the
drilling fluid circuit in all well sections as well as the management of drilling waste on land.
The estimates were based on field data as well as those from international databases and other
specialized work. (Pettersen 2007, Perry 2005, Sadiq 2003, Neff and al.2000, Ghazi M. and al.
2008, 2011, Riad and al. 2019, Khodja 2008)
The main objective of this study is to assess the potential environmental impacts and risks of
offshore exploration drilling and to compare the environmental benefits of three drilling system
scenarios by identifying areas for improvement. This final study project includes the following
chapters:
- Chapter 1 is devoted to the state of the art concerning offshore oil and gas drilling with a
literature review of the geostrategic, technical, reglementary and environmental aspects
of this type of industrial activity in the marine environment.
- Chapter 2 presents the material and the methodology adopted. First, there is the
description of the study area, including the physico-chemical and biological
characteristics of the marine waters as well as those of the Guerbes-Sanhaja Coastal
Ecocomplex, designated as a Ramsar Zone. Next, the LCA methodology and its
application to the offshore exploration system in the study area are exposed.
- Chapter 3 presents the essential results of the impact and damage analysis caused by well
drilling and the three treatment scenarios of drilling waste.
Finally, a conclusion presents a global and critical vision of the application of LCA to
exploration drilling in the marine area of Skikda, emphasizing the relevance of this method with
the possibility of exploiting its results as a tool to help the decision, while considering its limits
and difficulties.