渤中26-3油田储层出砂预测研究

Reservoir Sandstone Prediction in Bozhong 26-3 Oilfield

分析了渤中26-3油田主力储层明化镇组的出砂机理;提出用出砂指数法、斯伦贝谢出砂指数法和声波时差法来进行出砂预测,并用测井资料计算临界生产压差。根据3种预测方法和计算模型,应用VB6.0语言编制了出砂预测软件,建立了储层出砂指数剖面图。结果表明,明化镇组储层开采过程中出砂的可能性极大,开发时应采取防砂措施。研究结果为今后该区块及附近区块油井出砂界定提供准确的量化依据,还可为同类油田的开发提供良好的借鉴和参考。

By using the method of SDT, sand enter index, Schlumberger sand-production index, interface pressure in production, the sand production mechanism in the main reservoirs of Minghuangzhen Formation in Bozhong 26-3 Oilfield was analyzed and pre-determined based on the log information. The result of pre-determination of different methods is synthesized,the sand prediction software is developed with VB6.0 and the reservoir sand production index profile map is built in the paper. The conclusion suggests that there is a great possibility of sand production during reservoir performance in the formation of Minghuangzhen. It provides accurate quantification criteria to the solid control in the block and neighboring blocks. And it also provides reference for similar oilfield development.