稠油油藏优先开发排序方法

A Method to Rank the Development Priority of Heavy Oil Reservoirs

稠油油藏开发是一项投资大、风险大的工程。我国目前有大量的未动用稠油油藏,如果在投入开发前对这些稠油油藏进行优先开发排序,将对稠油油藏的动用决策提供指导,从而避免重大经济损失。提出了模糊数学和层析分析相结合的稠油油藏优先开发排序方法,应用模糊隶属度函数对稠油油藏实际参数进行了归一化处理,应用层次分析法求取各层析指标的权重,通过综合分析得到一个综合评价值,评价值高的稠油油藏优先动用。该方法在11个已开发稠油区块进行了实例验证,结果表明,评价结果与这些区块的实际开发效果吻合较好。

The development of heavy oil reservoir is a high investment and high risk project. There are a lot of undeveloped heavy oil reservoirs in China at present. If the reservoirs are ranked based on the priority of development before exploration, the guidance on how to develop these reservoirs can be provided to avoid the huge economical loss. A method to rank the development priority of reservoirs was proposed based on the fuzzy mathematics and analytical hierarchy. The actual parameters in heavy oil reservoir were changed into normalized unit using subordinate function. The weighting factors of each hierarchy were obtained using analytical hierarchy. The comprehensive evaluation was obtained and the reservoir with the highest value was developed first. This method was verified by 11 developed blocks, the results indicate that the evaluation results agree with those of the actual development.