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• W4233434174 abstract "Deepwater Activities Offshore Brazil: Evolution on Drilling Technology Andre Barcelos; Andre Barcelos Petrobras S.A. Search for other works by this author on: This Site Google Scholar S.P. Awad; S.P. Awad Petrobras S.A. Search for other works by this author on: This Site Google Scholar R.B. Assuncao R.B. Assuncao Petrobras S.A. Search for other works by this author on: This Site Google Scholar Paper presented at the University of Tulsa Centennial Petroleum Engineering Symposium, Tulsa, Oklahoma, August 1994. Paper Number: SPE-28004-MS https://doi.org/10.2118/28004-MS Published: August 29 1994 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Barcelos, Andre, Awad, S.P., and R.B. Assuncao. Deepwater Activities Offshore Brazil: Evolution on Drilling Technology. Paper presented at the University of Tulsa Centennial Petroleum Engineering Symposium, Tulsa, Oklahoma, August 1994. doi: https://doi.org/10.2118/28004-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE University of Tulsa Centennial Petroleum Engineering Symposium Search Advanced Search AbstractPetrobras started drilling deep water wells offshore Brazil in the mid-eighties. Nowadays, after ten years of experience, 180 wells have been drilled in water depths ranging from 400 m to 1800 m. Several records have been broken since the Marlim Field Pilot System came on stream. Recent activities and new prospects are pushing on limits into even deeper waters, where Petrobras is committed to drill and produce wells in the near future.This paper addresses main problems faced in the Campos Basin area, southeast Brazil, during the deep water exploratory program and the solutions achieved to solve them. A brief description of the current field developments is also given. Finally, a point about the future challenges to be overcome is made.IntroductionPetrobras has started drilling deep water wells in 1984. The exploratory campaign of a few wells leading to the discovery of first giant oilfields in Brazil-Marlim and Albacora-became the turning point in the Company history. There were many difficulties to be overcome in order to put these fields on stream, but the awards were worth the efforts.With the strong support of Petrobras Research and Development (R&D) Center, the drilling and completion personnel faced the initial challenges. By the drilling side, it was assumed that deep water wells were a mere extension of the 400 m water depth wells drilled with anchored rigs. However, field experience proved that these considerations were wrong. New wellhead equipments and operational procedures had to be developed to match the different situations and to achieve good standard performances.Up to 1991, only dynamic positioned (DP) rigs were used to drill exploratory wells in Campos Basin and other geological basins. In this period, 69 exploratory wells had been drilled. The activity in Campos Basin led to the discovery of other deep water oilfields: Barracuda, Bijupira, Salema. In 1992, Petrobras started an extensive program to drill development wells in deep water oilfields using both DP and deep anchored rigs. A total of 106 wells was drilled in the period of 1992 to 1993.Campos BasinCampos Basin, located at about 190 km from Macae the regional support base, off Rio de Janeiro State coast is far the most striking oil and gas province in Brazil (Figure 1).P. 495^ Keywords: guide base, drilling operation, discovery, drilling fluids and materials, water depth, drilling technology, upstream oil & gas, drilling fluid management & disposal, deepwater activity offshore brazil, operational procedure Subjects: Drilling Operations, Drilling Fluids and Materials, Drilling fluid management & disposal This content is only available via PDF. 1994. Society of Petroleum Engineers You can access this article if you purchase or spend a download." @default.
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