萨北开发区油水同层测井解释方法

Oil/Water mixed layer logging interpretation method in Sabei development area

为了弥补三次加密井可调厚度小造成的产能不足,通过取心、试油、模拟射孔等方法研究认为萨北开发区油水同层具有一定的潜力。在分别对萨葡油层组和高台子油层组油水同层段储层的“四性”关系研究的基础上,应用按地质条件约束的数理统计方法建立了储层参数解释模型,并以渗流理论为指导,分析总结了2种储层产液变化模式,建立了研究区油水同层测井解释标准,应用符合率达到82.6%。补射偏油同层,在三次加密调整中可作为潜力补充,基本达到三次加密井产能设计方案指标。

To compensate production capacity deficiency caused by small adjustable thickness of tertiary infilling wells,the certain potential of the oil/water mixed layers in Sabei development area has been recognized through coring,oil testing and simulated perforation study.Based on study on relations between four parameters of oil/water mixed reservoirs respectively in Saertu and Putaohua reservoirs and Gaotaizi reseroirs,reservoir parameters interpretation model is established by applying mathematical statistics constrained by geologic conditions.Guided by filtration theory,the fluid production variation patterns of the two types of reservoirs are analyzed and summarized.Oil/water mixed layer logging interpretation standard in studied area is established and application coincidence rate reaches 82.6%.Reperforation in more oil and less water mixed layer can be a potential supplement in tertiary infilling adjustment,basically reaching the tertiary infilling well production capacity designed scheme index.