滨里海盆地Adaiski区块盐下成藏主控因素分析

Adaiski区块位于滨里海盆地东南部,构造上属于南恩巴坳陷区。滨里海盆地在早二叠世晚期发育巨厚盐岩,盐岩覆盖之下的的泥盆系-二叠系以碳酸盐岩和碎屑岩沉积为特征。经已钻井证实Adaiski区块盐下油气资源丰富。在对该区块盐下油气基本成藏条件分析的基础上,详细分析了盐下成藏的主控因素,指出盐下成藏的主控因素是碳酸盐岩台地和生物礁的发育和分布,其次孔谷阶盐岩盖层的分布对成藏有重要影响。     

Effects of Pre-Salt Regulation on the Market Value of Petrobras

This article measures the impacts of the process of pre-salt development related to new regulations in Brazil applicable to the offshore pre-salt hydrocarbon reserves. For this purpose, Bai and Perron (2003 Bai, J., and Perron, P. (2003). Computation and analysis of multiple structural change models. Journal of Applied Econometrics, 18, 1–22. doi:10.1002/jae.659[Crossref], [Web of Science ®] , [Google Scholar]) and Chow (1960 Chow, G. C. (1960). Tests of equality between sets of coefficients in two linear regressions. Econometrica, 28(3), 591–605. doi:10.2307/1910133[Crossref], [Web of Science ®] , [Google Scholar]) tests were used to identify structural breakpoints in the behavior of the price of Petrobras stock through a model that includes the ratio of the stock prices of Vale and Petrobras, and the proven oil reserves of Petrobras from 2000 to 2014. The results indicated structural breakpoints in the period of regulation change and when Petrobras issued new shares to raise funds for pre-salt development.     

The energy revolution in the USA and the pre-salt reserves in Brazil: Risks and opportunities for the Brazilian petrochemical industry

The petrochemical industry is known for its interrelations with the oil industry. In recent years the world has witnessed the rapid growth of the Chinese economy and an associated surge in demand for petroleum and oil products, alongside the emergence of alternative sources of oil and natural gas to those produced by OPEC (Organization of Petroleum Exporting Countries) and Russia, such as Brazil’s pre-salt reserves and shale gas in the United States. The US is undergoing a veritable energy revolution with its use of unconventional oil and natural gas production techniques in low-permeability reservoirs, chiefly shale gas. Brazil’s prospects as an international player are on the rise thanks to the exploration of oil and natural gas from its pre-salt reserves, which could lead to exports of petroleum of over 2 million barrels/day. All these movements have a direct influence on the petrochemical industry. This article aims to foster discussions about the risks and opportunities facing the Brazilian petrochemical industry with the exploration of oil and natural gas in Brazil and unconventional sources in the United States. Systemic thinking and scenario-based planning were used as the basis for the analysis.