Background. In Brazil, cancer is the second most common cause of death, and the most incident types of cancer are prostate, breast, lung, colon and rectum. This study aimed to analyze the role of period, geographic and socio demographic factors in cancer-related mortality by prostate, breast, cervix, colon, lung and esophagus cancer in Brazilians capitals from 2000 to 2015. Methods. Data from 2005-2015 cancer mortality and resident population were collected from Information Technology Department of the Brazilian Unified Health System (DATASUS), the Brazilian Institute of Geography and Statistics (IBGE) and the Brazilian Mortality Information (SIM). State capitals were the study’s analytic units. A multilevel Poisson model was used to estimate the adjusted risk of cancer mortality (prostate, breast, cervix, colon, lung and esophageal cancers). The adjusted models included the following variables as fixed effects: age, Gross Domestic Product, region, year squared and year of death. Results. A statistically significant difference was found between mortality rates by gender for colon, lung and esophageal cancers. The highest mortality rates were observed in the older age group, especially for prostate and lung cancers, which values were higher than 100 deaths per 100,000. Comparing with those aged 40-59 years, men older than 59 years showed 47 times higher mortality risk for prostate cancer, 8-9 times higher for lung or colon cancers and four times higher for esophageal cancer. Compared with those aged 40-59 years, women older than 59 years old showed 5-7 times higher mortality risk for esophageal, lung or colon cancers and 2-3 times higher for breast or cervix cancers. Conclusions. Colon cancer mortality rate increased from 2000 to 2015 for both genders, while breast and lung cancers mortality increased over the period only for women. In both genders, the highest mortality risk for lung and esophageal cancers was observed in Southern capitals. Northern capitals had a lower risk of death by prostate and breast cancer and a higher risk of death by cervix cancer.
TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe Jubarte field, in the Campos Basin, Brazil, was discovered in January 2001. It is located about 80 km offshore from the State of Espírito Santo, under water depths between 1,000 and 1,500 m, containing oil of 17 °API and viscosity of 14 cP at reservoir conditions. This work presents a review of the artificial lift and flow assurance aspects faced by PETROBRAS in the exploitation of Jubarte heavy oil, starting from the features of the Pilot Phase. It details all the challenges posed and innovations proposed and implemented for Phase 1 field development, as well as expectations for the subsequent Phase 2.
In oilfield exploitation, pumping is one of the most productive artificial lift methods. The use of downhole pumps, where applicable, allows increasing production. However, service life of this type of systems may be short, around 2.5 years for electrical submersible pumps -ESPs, one of the most widely used types. Furthermore, failures in wet completion subsea wells require tubing removal, a heavy workover operation, demanding high costs offshore rigs. Besides, due to production halt, revenues are impacted.As a tendency for subsea wells, whenever allowed by production conditions, pumps are installed on the seabed, outside the production well. Depending upon the free gas fraction at pump intake, ESPs (with or without previous gas separation) or multiphase pumps may be used.Examples of ESP usage outside the producing wells are the pumping module (MOBO) and the Skid-ESP. In such cases, ESPs strings are installed on the seabed. In cases of failure, ESP replacement is simpler and faster, executed by rigs or special vessels, avoiding the costly intervention in the production well. But, even saving resources due to the operation simplification, the costs of required naval resources and the time spent awaiting for their availability and mobilization are still high. Several days may pass from system failure until the intervention is finally performed.At Perdido and Nansen Spar platforms, operated by Shell and Anadarko respectively, ESP were deployed and installed in the production risers. Recent developments of compact and high speed ESP may contribute for their placement inside production risers for other production unit types, FPSO, for instance. This paper proposes a new boosting concept based pumps, ESP or Hydraulic Submersible Pumps -HSP, installed inside production risers in FPSO, comparing their advantages and disadvantages of the proposed concept to seabed ESP systems, multiphase pumps and gas-liquid separation systems.
Background. This study aims to estimate the rate of death by cancer, according to Radio Base Stations (RBS) radiofrequency exposure, especially for the types of breast, cervix, lung and esophagus cancer. Methods. We collected information about the number of deaths by cancer, gender, age group, Gross Domestic Product per capita, death year and the amount of exposure over the lifetime. We investigated all cancer types and some specific types (breast, cervix, lung and esophagus cancers). Results. In capitals where RBS radiofrequency exposure was higher than 2,000/antennas-year, the average mortality rate was 112/100,000 for all cancers. The adjusted analysis showed that the higher the exposure to RBS radiofrequency, the higher cancer mortality. The highest adjusted risk was observed for cervix cancer (Rate Ratio = 2.18). The spatial analysis showed that the highest RBS radiofrequency exposure was observed in a city in southern Brazil, which also showed the highest mortality rate for all types of cancer and specifically for lung and breast cancer. Conclusion. The balance of our results indicates that the exposure to radiofrequency electromagnetic fields from RBS increases the rate of death by all types of cancer.
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