石油实验地质Issue(6)：725-730,6.DOI:10.11781/sysydz201406725
委内瑞拉奥里诺科重油带油藏特征及开发潜力
Reservoir characterization and exploitation potential in Orinoco heavy oil belt in Venezuela
摘要
Abstract
The Orinoco heavy oil belt is on the southern slope of the Eastern Venezuela Basin, with an area of 55 000 km2 . The heavy oil reservoirs were buried 350-1 200 m deep. The unconsolidated sandstones in Oligocene and Miocene worked as the main reservoirs, with the average porosity and permeability of 33.4% and 4 760×10-3 μm2, respectively. Reservoir temperature is 40-55℃. Reservoir pressure coefficient is about 1. Super heavy oil API is 7.5 °-9 °. Situ viscosity is 1 000- 6 000 cP . Reservoir effective thickness is 6-120 m. The original proven geologic reserve is 11 220×108 bbl, and the recoverable reserve is 2 600×108 bbl. There are five heavy oil developing blocks with daily oil production of about 72 ×104 bbl. A set of economic and feasible developing technology series has been formed. The recoverablereserve of the developing blocks is about 3%of the total recoverable reserves of heavy oil belt, showing great exploration potentials.关键词
重油/可采储量/油藏特征/开发潜力/奥里诺科重油带/委内瑞拉Key words
heavy oil/recoverable reserves/reservoir characterization/exploitation potential/Orinoco heavy oil belt/Venezuela分类
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侯君,戴国汗,危杰,肖毅,徐学品..委内瑞拉奥里诺科重油带油藏特征及开发潜力[J].石油实验地质,2014,(6):725-730,6.基金项目
中国石油化工集团委托项目“南美重点盆地油气分布规律及勘探选区研究”（ JP08014）资助。 （）
