【摘要】 为了解G59-10断块水驱开发状况,提高水驱效果,对G59-7井组进行了微地震注水前缘监测。基于微地震监测技术的基本原理和方法,通过在现场的实际应用,确定了注入水的优势渗流方向及波及范围。实例分析表明,根据水驱前缘波及面形状及扫油面积,可以从平面上直观地显示监测层位的剩余油分布状况,其实质为油藏平面非均质性的直观反映;微地震水驱前缘监测结果与井组的生产状况吻合,该技术可对复杂断块油藏不规则井网注水状况起到有效的监测作用,实现了对水驱开发效果的实时评价,为下步挖潜措施及注采方案调整提供依据。更多还原

【Abstract】 In order to understand waterflooding behavior and improve the flooding effect in G59-10 fault block,the waterflood front has been monitored by microseismic method in G59-7 well group.The dominant flow direction and sweep area of injected water has been defined by field application of microseismic monitoring technology based on its rationale and methods.Case study indicates that the shape and area of waterflood front can visually display the areal distribution of residual oil in the monitored horizon,practically reflecting planimetric reservoir heterogeneity.The result of microseismic monitoring for waterflood front coincides with the production performance of the well group.This technology can effectively monitor waterflooding behavior of skewed pattern in complex faulted reservoir,conduct real time evaluation of waterflood effect,and provides reference to adopting next step stimulation measures and adjusting injection-production program.更多还原