Abstract: The profile－controlling effects in the three complex fault－block oilfields,Wenmingzhai,Weicheng and Mazhai,are studied by using particle profile－controlling agents and the theory of mathematical statictics.When the incremental coefficient of increasing oil and reducing water after profile controlling is considered as the basis of result evaluation,It is found that the ratio of the value of water absorption thickness/the number of water absorbed formations to the value of the perforating thickness/the number of perforated formations,the starting pressure,the geological recovery percent of reserves and the accumulative injection－production ratio of the water injection wells during the different production periods are the main factors that affect the result of profile controls of water injection wells.The optimum suitable conditions of profile controls are defined to instruct the choices of profile－controlled wells and formations and effect prediction in the future.

Key words: fault-block field, water injection well, profile-controlling agent, formation recovery percent of reserves, accumulative injection-production ratio, water absorption thickness/the number of water-absorbed formations

摘要： 应用数理统计方法,研究了颗粒型调剖剂在文明寨、卫城、马寨三大复杂断块油田的调剖效果;以调剖后增油降水的增值系数大小作为效果评价依据,分析发现不同开发时期的注水井吸水厚度/层数占射孔厚度/层数的百分比、地质采出程度、累计注采比、启动压力为影响调剖效果的主要因素.并且确定了文、卫、马断块油田最佳的调剖适用条件,用以指导今后调剖选井、选层、效果预测.

关键词: 断块油田, 注水井, 调剖剂, 效果, 地层采出程度, 累计注采比, 吸水厚度层数