大港油田回注水水质指标优化研究  

Optimization of Quality Index for Reinjected Water in Dagang Oilfield

作　　者：张巧灵[1] 黄义坚[2] 张玉娟[1] 项勇[3] 赵昕铭[3] 

机构地区：[1]中国石油天然气管道工程公司天津分公司 [2]大港油田钻采工艺研究院 [3]大港油田公司采油工艺研究院

出　　处：《石油规划设计》2006年第5期5-8,共4页Petroleum Planning & Engineering

摘　　要：大港油田根据主要开发区块储层的物性特征进行了回注水水质指标的优化研究。通过对生产运行参数(包括注水量、泵压、油压和套压)变化趋势和典型单井吸水剖面变化情况的综合分析,找出回注污水对储层存在伤害的区块及相应层位。以这些区块的渗透率分布范围为依据,采用美国Berea标准对天然岩心和生产井岩心进行了储层伤害评价。通过综合分析及优化试验,制定了大港油田主要注水区块所对应的污水处理站的水质控制指标。The optimization of quality index for the reinjected water was made according to the physical property of reservoir in the main developing blocks of Dagang Oilfield. The variation trends of the operation parameters,including water injection rate,pumping pressure,oil pressure and casing-head pressure, and the injection profile of the typical single well were analyzed. The blocks and the corresponding layers damaged by the reinjected wastewater were determined. Depending on the permeability distribution range of these blocks,the appraisal of the natural core and core from producing well of damaged reservoirs was done by adopting the America Berea Standard. By integrated analysis and optimization,the index for controlling water quality in the sewage treatment station of the main injection block in Dagang Oilfield was determined.

关 键 词：油田 储层 渗透率 回注污水 伤害率 实验 水质指标 优化 

分 类 号：TE258[石油与天然气工程—油气井工程] TQ314.253[化学工程—高聚物工业]