西南石油大学学报（自然科学版）2016，Vol.38Issue(4)：89-94,6.DOI:10.11885/j.issn.1674-5086.2014.03.28.02
海上稠油多元热流体吞吐开发效果评价初探
Thermal Recovery Effect Evaluation of Multi-thermal Fluid Stimulation in Offshore Heavy Oilfield
摘要
Abstract
Oilfield A is the first pilot test spot of thermal recovery in offshore unconventional heavy oil field. The development effect will directly affect the future development of offshore unconventional heavy oil resources. Based on production perfor-mance of thermal recovery well in Oilfield A,the influence of edge water on the development effect of thermal recovery wells was analyzed,and we proposed distance from thermal recovery well to edge water to be more than 200∼300 m. A comparison between normal and thermal production of the same well,and between the production of thermal recovery well and adjacent normal production well in the same layer showed that early productivity and the first annual oil production of thermal recovery wells are both 1.5 to 2.0 times as normal production wells. Integrated evaluation method was performed using bottom hole temperature and productivity index data,and we analyzed the valid period of thermal recovery well,which is between 240 to 339 days,298 days on average. The values of cycle average capacity,oil production and oil-steam ratio were compared to the pre-drilling design value,and the results showed that without considering sand control technology,drill string problems and reservoir property change,thermal recovery wells have reached the expected results of the first cycle,with the average capacity of 5 m3/d,cycle oil production of 1.80×104 m3;and the incremental oil production of 0.7×104 m3. The thermal recovery effect of multi-thermal fluid stimulation is obvious,and will guide the development of other offshore unconventional heavy oil field.关键词
多元热流体/吞吐开发/热采效果评价/非常规稠油/海上油田Key words
multi-thermal fluid/huff and puff development/thermal recovery effect evaluation/unconventional heavy oil/offshore oilfield分类
能源科技引用本文复制引用
朱国金,余华杰,郑伟,谭先红,王磊..海上稠油多元热流体吞吐开发效果评价初探[J].西南石油大学学报（自然科学版）,2016,38(4):89-94,6.基金项目
国家科技重大专项（2011ZX05024005）。 （）
