In the task of using city gas to replace the heavy oil, the satisfying results are acquired by basing on the reality data and setting up the calculation system.
在研究利用城市煤气替代重油作燃料的课题中，以现场数据为依据，利用对比法建立计算体系，得出了令人满意的结果。
During measuring total sulfur content in heavy oil using Coulumb instrument, the measured values were often on the low side.
用库仑仪测定重油中全硫含量时，测定值往往偏低。
Cyclic steam stimulation is a major way of recovering heavy oil at present. Efficient development is highly dependent on rational using of steam energy and improving oil-steam ratio.
蒸汽吞吐是目前稠油油藏开发的主要方式，合理利用蒸汽热能、提高油汽比对于稠油油藏的经济有效开发非常重要。
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