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方法综合应用从美国引进的WorkBench软件及国内先进的NUMSIP-Ⅲ稠油热采软件,针对曙光油田稠油热采区块杜239断块开展热水驱、蒸汽驱、间歇汽驱、蒸汽+热水段塞驱四种开发方式及其主要工艺技术参数的模拟优选。目的确定该块吞吐结束后最佳开采方式,为进一步提高该块开发水平提供依据。结果蒸汽+热水段塞驱方案实施半年多来,整个试验井组在吞吐采出程度已达30%以上的情况下,实现了产油量基本无递减,初步取得了较理想的开发效果。结论对于杜239断块及同类油藏,吞吐开发结束后宜于转换为蒸汽+热水段塞驱。
Methods Based on the WorkBench software imported from the United States and the advanced NUMSIP-Ⅲ heavy oil thermal recovery software from the United States, hot water flooding, steam flooding, intermittent steam flooding, steam + heat Four kinds of development modes of plugging water in water section and simulation and optimization of its main technical parameters. Objective To determine the best mode of production after the end of the block throughput, in order to further improve the level of development of the block provide the basis. Results After more than half a year of implementation of the program of plugging and flooding of steam and hot water, the entire test well group achieved basically no decline in oil production with a throughput of 30% or more, and achieved relatively satisfactory development results initially. Conclusion For Du 239 block and similar reservoirs, it is better to convert to plug steam driven by steam + hot water after the end of the stimulation development.