摘要
根据辽河油田蒸汽吞吐开发稠油的实际生产资料，通过数理统计分析，发现处于蒸汽吞吐阶段的稠油油藏，其累积注汽量和累积产油量之比与累积注汽量在直角坐标系上，具有较好的线性关系。利用这一线性关系，以油藏的油汽比确定注汽量，可解决稠油蒸汽吞吐阶段的配产问题；又可根据蒸汽吞吐阶段的极限油汽比，计算该阶段的可采储量。
Based on the actual production data of viscous oil recovery by steam huff and puff in Liaohe oil field, and by means of mathematical statistics and analysis, it is found that the ratio of accumulative steam injection volume to accumulative oil production volume versus accumulative steam injection volume has a good linear relationship on rectangular coordinates. This relationship can be used to determine steam injection volume and the production distribution during steam stimulation. It can also be used to calculate recoverable reserves according to the extreme oil steam ratio in this period. The actual applications show that this method is practical and effective when the steam injection period is above two cycles.
关键词
稠油油藏
蒸汽吞吐
可采储量
注蒸汽
viscous oil reservoir, steam soaking, recoverable reserve, prediction, statistical analysis
