不同储层类型压裂液动态滤失对比分析  

Comparative Analysis of Fracturing Fluid Dynamic Leak-off in Different Reservoir Types

作　　者：孔范帅[1] 赖枫鹏[2] 胡春余[3] 

机构地区：[1]中国石油辽河油田分公司,辽宁盘锦124010 [2]中国地质大学(北京)能源学院,北京100083 [3]中国石化胜利油田分公司,山东东营257000

出　　处：《内蒙古石油化工》2012年第9期140-142,共3页Inner Mongolia Petrochemical Industry

摘　　要：不同储层类型在压裂施工中存在明显的差异,主要是压裂液的滤失。将储层类型分为基质模型、裂缝模型、双重介质模型,分别建立不同储层类型的压裂液动态滤失计算的数学模型。考虑压裂液粘度的变化,得到随时间变化的滤失参数,对比分析了不同储层类型压裂液动态滤失速度的差异。认为基质模型与裂缝模型的动态滤失速度变化趋势一致;双重介质模型滤失速度最快,且比基质模型滤失速度大出几个数量级。Fracturing differs dramatically from that of different reservoir types.The most difference is fluid leak-off.The paper divided reservoir into matrix model,fractured model,and dual-medium model.And then,established mathematical models of fracturing fluid dynamic leak-off in different reservoir types.Comparative analyzed the difference of fluid dynamic leak-off with the change of viscosity in different reservoir types,and got filtration parameters with the change of time.The calculation result showed the change of fluid dynamic leak-off were identical in matrix model and fractured model.The leak-off rate was fastest in dual-medium model than other models,and it was more several orders of magnitude than matrix model.

关 键 词：储层类型 压裂液 动态滤失 对比分析 

分 类 号：TE3[石油与天然气工程—油气田开发工程]