In the last four years, shipping costs have risen 71 % because of higher oil prices, as well as cutbacks in ships and containers, according to IHS Global Insight. 经济和金融分析机构IHSGlobalInsight的数据显示,过去4年,由于油价上涨以及船只和集装箱运力削减,运输成本已经上涨了71%。
Well-testing exploration is the last step of discovering and verifying oil and gas in petroleum and natural gas exploration, following the seismic exploration, well locating, and logging-analysis. 试油勘探是石油和天然气勘探中,继地震勘探和井位研究部署、钻井勘探、测井分析完成后,进行油气层验证及油气发现的最后一个环节。
At last, the paper calculates output error and accumulative error that base on oil field datum to analyze start-up pressure gradients affecting oil well production. 最后,本文以实际油田区块资料为计算依据,从产量误差和累计产量误差的角度出发,对启动压力梯度对油井生产的影响做一分析。
The last time oil and gasoline prices fell this low was in the wake of the 2008-9 financial collapse, when crude oil fell from well over $ 100 to below $ 40 a barrel in a matter of months. 石油和汽油价格上次跌到这么低的水平,还是在2008年至2009年的金融危机之后。当时,在数月时间里,原油价格从每桶远超100美元,跌至不足40美元。