稠油区块多元驱油开发模式研究与试验  

Multiple Displacement Development Mode in Thickened Oil Block

作　　者：付强[1] FU Qiang(CNPC Liaohe Oilfield Branch,PanJin 124000,Liaoning,China)

机构地区：[1]中国石油天然气集团公司辽河油田分公司,辽宁盘锦124000

出　　处：《承德石油高等专科学校学报》2023年第2期23-28,45,共7页Journal of Chengde Petroleum College

摘　　要：C13块为普通稠油块状油藏,历经多年注水开发,受出砂、井况等问题影响,开发效果较差,整体处于“双低”开发状态。开展精细地质体刻画,重新落实区块构造及剩余油分布情况,为后续的开发调整提供了物质基础。根据南北区域不同的地质条件,分区分方式制定调整策略,北部油品性质较差,重构井网后按照蒸汽吞吐配合注水补能的开发方式进行调整;南部区域立足注水开发,利用深部调驱改善纵向动用状况。试验井组增油效果显著,下步可扩大实施规模。调整后,预计区块最终采收率可达到19.1%,较标定采收率提高6.1%,开发效果得到有效改善,为同类型油藏提供有力借鉴。Block C13 is an ordinary thickened oil block reservoir,the development effect is poor due to problems such as sand production and well conditions after years of water injection development,the overall development is in the“double low”state.To provide a material basis for subsequent development adjustment,fine geological body characterization is carried out to re-implement the block structure and remaining oil distribution.According to different geological conditions of north and south regions,adjustment strategies are formed in different ways.In the north block with poor oil quality,steam soak is used with water injection to supplement energy;while deep profile control is used in the south part to improve vertical utilization based on water injection development.The effect of oil increase in test well group is remarkable,and the scale of implementation can be expanded in following development.After the adjustment,it is estimated that the final recovery factor of the block can reach 19.1%,which is 6.1%higher than calibrated recovery factor.The development effect is effectively improved,providing an effective reference for similar reservoirs.

关 键 词：地质体刻画 地层格架 剩余油分布 蒸汽吞吐 深部调驱 

分 类 号：TE357[石油与天然气工程—油气田开发工程]