复杂油气藏开发方案编制中的弹性原则

The flexibility principle in the development programs compilation of complex hydrocarbon reservoirs

油气藏开发方案是油气藏开发的纲领性文件,是各个工程环节的主要施工依据,但实施结果有时与预测指标存在较大偏差。对造成开发方案中储量评价、井型井网部署、产能预测、合理配产、采收率预测偏差的因素进行了分析,指出编制开发方案时应注意数据源的不确定性、储层非均质性、边底水、应力敏感、非达西渗流等复杂问题,设计的方案应具有一定的弹性原则,以便在实施方案时根据实际问题适当地进行调整。

As the framework document for hydrocarbon reservoirs development,hydrocarbon reservoirs development programs serve as the reference for each operative process.However,practical results often deviate largely from predicted index.After the analysis of the factors leading to the inaccuracy of reserve evaluation,deployment of well types and well network,deliverability pre diction,reasonable production allocation and recovery ratio in development programs,it was pointed out that the complex problems such as the uncertainty of data source,reservoir heterogeneity,edge/bottom water,stress sensitivity,non-Darcy seepage,as well as the principle of flexibility should be taken into consideration in development programs compilation so that the programs could be properly adjusted in practical cases according to actual problems.