摘要
绒囊修井液在SZ36-1油田C22井修井后,产液量下降,产油量上升,含水率下降。如何评价绒囊修井液储层伤害效果成为焦点。利用C22井修井前后10个月的产液量、产油量和含水率变化趋势,发现产油趋势分析法评价绒囊修井液修井效果比平均产液法更合适。产油趋势法可以详细分析修井前后产液量、产油量等参数的变化幅度及变化速率,对产量预测和制定合理的工作制度更有指导意义。用产油趋势法分析该油田另一口使用绒囊修井的F20井,较好地解释了修井后的产液、产油等现象,可以评价绒囊修井液对储层的伤害程度。
After fuzzy-ball workover fluid was utilized in workover of Well C22 of SZ36-1 Oilfield, fluids production was decreased,oil production was increased and the watercut was reduced. How to evaluate reservoir damage by fuzzy-ball workover fluidhas become a focal point. From fluid production, oil production and watercut trend 10 months before and after workover of Well C22,it was found that evaluating the effect of fuzzy-ball workover fluid for offshore SZ36-1 Oilfield using oil production tendency methodis more suitable than average fluid production method. Oil production tendency method can analyze the rangeability of fluid productionand oil production and rate of change before and after workover in detail, having a guiding significance for predicting oil productionand formulating reasonable working system. Analyzing Well F20 with the oil production tendency method, another well in this oilfieldworked over with fuzzy-ball fluid, better interpreted the fluid and oil production after workover, and could evaluate the extent of damageto the reservoir by fuzzy-ball workover fluid.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2014年第4期61-63,共3页
Oil Drilling & Production Technology
基金
国家科技重大专项"海上油田丛式井网整体加密及综合调整技术"(编号:2008ZX05024)资助
关键词
产油趋势法
绒囊
修井液
储层伤害
oil production tendency method
fuzzy-ball
workover fluid
reservoir damage
