特超稠油HDCS吞吐影响因素分析及潜力评价方法

Influence factor and potential evaluation of HDCS huff and puff for super-heavy oil

赵淑霞 2 何应付 2 王铭珠³ 廖海婴 2

中国石化石油勘探开发研究院，北京 100083 中国石化海相油气藏勘探开发重点实验室，北京 100083 中国石油大学（北京）提高采收率研究院，北京 102249

Exploration and Production Research Institute, SINOPEC, Beijing 100083, China Key Laboratory of Exploration and Production for Marine Reservoirs, SINOPEC, Beijing 100083, China Enhanced Oil Recovery Research Center, China University of Petroleum, Beijing 102249, China

HDCS吞吐（CO2和降黏剂辅助水平井蒸汽吞吐）技术是开采超/特超稠油的有效手段，其影响因素和潜力评价一直是研究的热点。文中针对胜利油田特超稠油开采实施情况，建立典型模型，采用正交试验设计方法，分析了HDCS油汽比和采出程度的影响因素；在此基础上，利用响应面方法建立了HDCS油汽比和采出程度计算的代理模型，提出了HDCS潜力评价的新方法，并将该方法运用于胜利油田某区块的HDCS模拟计算中。计算结果与实际相比，平均误差小于9.5%，说明该方法可用于超/特超稠油HDCS潜力评价。

HDCS technology(horizontal well dissolver carbon dioxide steam huff and puff) is an important way for developing super heavy oil reservoirs; its influence factor and potential evaluation have been warmly discussed. In view of HDCS in Shengli Oilfield, the influence factor of oil-steam ratio and recovery percent were evaluated and analyzed by establishing typical model and using orthogonal design. On this basis, we established a surrogate model of HDCS by using response surface method, and presented a new method of potential evaluation. This method was applied to wells in Shengli Oilfield. The actual oil-steam ratio is quite close to the calculated result, and the relative error is less than 9.5%.

10.6056/dkyqt201601015