摘要
目前委内瑞拉奥里诺科重油带上仅有5个合资项目（其中MPE3项目由中国石油南美公司（CNPC South AmericaCorporation,以下简称CNPCSA）和委内瑞拉国家石油公司（PDVSA）合资经营）和1个PDVSA项目在开发生产,这6个项目日产重油超过11.7×10^4t,日产奥里乳油约8.8×10^4t,合计动用面积2 022 km^2,动用面积比例不到4%,动用地质储量约216×10^8t,储量动用程度不到11%,因此,重油带开发程度很低。奥里诺科重油与世界上其他重油有很大的区别,具有＂三高一低可流动＂的特性,即：高密度（934-1 050 kg/m^3）,高含硫（平均为35 000 mg/L）,高含重金属钒和镍（大于500 mg/L）,低黏度（一般小于20 Pa.s）,可形成泡沫油,冷采条件下可流动并能获得很高的单井产能,水平井冷采产量一般可达200 t/d;冷采采收率较低,为5%~10%。
Only 5 joint projects（the MPE3 project has been shared by CNPC South America Corporation and PDVSA） and one project of PDVSA are running in the Orinoco heavy oil belt at present,and the daily oil production of the six projects is more than 11.7×10^4t,the crude dilute daily production is about 8.8×10^4t,the total producing area is 2 022 km^2,which is less than 4% of the whole area;the producing reserves are about 216×10^8t,the producing percentage is less than 11%,and from this sense,the development degree is very low.The heavy oil of Orinoco has great difference from other heavy oils in the world,and it has the characteristics of ＂three highs one low and flowable＂.That is,high density（934-1 050 kg/m^3）,high sulfur（average 35 000 mg/L）,high heavy metal nickel and vanadium（500 mg/L）,low viscosity（generally lower than 20 Pa·s）,easily forming foamy oil.The oil can flow and the single well production is very high under cold production（the production of the horizontal well under the cold production can be up to 200 t/d）,the recovery of the cold production is low（5%-10%）.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
2010年第3期338-343,共6页
Petroleum Exploration and Development
关键词
奥里诺科重油油藏
开发特点
动用程度
油藏特征
Orinoco heavy oil reservoir
development characteristic
producing degree
reservoir characteristics
