Variation trend of cumulative oil production were similar as that of recovery.

累积产油量变化趋势与采收率变化相近；

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During the late period of steam stimulation, mixing viscous crude oil with pumped down light oil can prolong the production period and increase the cumulative oil production.

稠油油田蒸汽吞吐井生产后期，在泵下掺稀油能延长生产周期，增加周期产量。

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The computed parameters such as reserves, cumulative oil production of single well and area, water cut have small relative error of less than 2%, the matching accuracy degree is high.

储量、区块及单井累积产油量、含水等参数计算的相对误差均小于2.0%，拟合精度高。

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The British production cycle is nearly complete, and it is substantial, equivalent in energy content to the cumulative Saudi oil production.

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