Atlanta is a post-salt oil field located in the original Block BS-4 ring fence, 185 km off the ci... more Atlanta is a post-salt oil field located in the original Block BS-4 ring fence, 185 km off the city of Rio de Janeiro, in the Santos Basin, Brazil, under water depth of approximately 1550 m. However, Atlanta Field is not just another ultra-deepwater project; for its development, several other challenges shall be overcome, such as the low burial depth, its highly unconsolidated sandstone reservoir, the heavy and viscous crude flow assurance, the need for high power artificial lift pumping system, and the complex crude treatment at topsides, among others. The field was discovered in 2001, followed by an appraisal program with a vertical well drilled yet in the same year to test the high porosity Eocenic unconsolidated sandstones and sample its heavy and viscous oil (14°API and 228 cP in reservoir conditions). In 2006, a horizontal well proposed to test the field development concept cast a shadow in the reliability of the project after facing several drilling, completion and production...
Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, ... more Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, can cause a number of severe problems. To prevent deposition inside the reservoir, in the well head and inside the transmission lines, it is necessary to be able to predict the onset and amount of deposition due to various factors. In the present paper, the mechanism of asphaltene deposition, which is the major cause of most organic deposition cases, is modeled based on statistical mechanics of polydisperse polymer solutions joined with the kinetic theory of aggregation and its predictive capability is discussed. Utilization of statistical mechanics of polydisperse polymer solutions joined with kinetic theory of aggregation enables us to develop a realistic model which is able to predict both reversible and irreversible heavy organic depositions. The present model is capable of describing several reversible and irreversible situations, such as the phenomena of organic deposition, growing...
Atlanta is a post-salt oil field located in the original Block BS-4 ring fence, 185 km off the ci... more Atlanta is a post-salt oil field located in the original Block BS-4 ring fence, 185 km off the city of Rio de Janeiro, in the Santos Basin, Brazil, under water depth of approximately 1550 m. However, Atlanta Field is not just another ultra-deepwater project; for its development, several other challenges shall be overcome, such as the low burial depth, its highly unconsolidated sandstone reservoir, the heavy and viscous crude flow assurance, the need for high power artificial lift pumping system, and the complex crude treatment at topsides, among others. The field was discovered in 2001, followed by an appraisal program with a vertical well drilled yet in the same year to test the high porosity Eocenic unconsolidated sandstones and sample its heavy and viscous oil (14°API and 228 cP in reservoir conditions). In 2006, a horizontal well proposed to test the field development concept cast a shadow in the reliability of the project after facing several drilling, completion and production...
Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, ... more Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, can cause a number of severe problems. To prevent deposition inside the reservoir, in the well head and inside the transmission lines, it is necessary to be able to predict the onset and amount of deposition due to various factors. In the present paper, the mechanism of asphaltene deposition, which is the major cause of most organic deposition cases, is modeled based on statistical mechanics of polydisperse polymer solutions joined with the kinetic theory of aggregation and its predictive capability is discussed. Utilization of statistical mechanics of polydisperse polymer solutions joined with kinetic theory of aggregation enables us to develop a realistic model which is able to predict both reversible and irreversible heavy organic depositions. The present model is capable of describing several reversible and irreversible situations, such as the phenomena of organic deposition, growing...
Uploads
Papers by Valter Branco