应用井间电位监测技术评价井网调整开发效果  

Application of cross-well potential monitoring technology to improve block development effect

作　　者：陈晶 CHEN Jing(No.5 Oil Production Plant of Petrochina Daqing Oilfield Co.,Ltd.,Daqing Heilongjiang 163712,China)

机构地区：[1]中国石油大庆油田有限责任公司第五采油厂,黑龙江大庆163712

出　　处：《油气井测试》2024年第1期61-66,共6页Well Testing

基　　金：国家科技重大专项“大庆长垣特高含水油田提高采收率示范工程”(2016ZX05054)。

摘　　要：大庆油田X区块二三次井网注采井距大、动用差,通过层系井网调整为一套井网开发,实施半年后出现含水上升速度加快、产量递减加大的问题。利用井间电位监测技术,将监测解释结果视纯异常环形图与砂体展布图叠加,结合油田开发动态生产数据及同位素监测资料分析层系井网优化调整后注水优势推进方向和水驱前缘波及形态。针对注水平面波及均匀性较差的实际,实施针对性措施调整42口井,调整后区块自然递减率减缓了5.73%,年含水上升速度下降0.80%,开发效果得到明显改善。井间电位监测为层系井网优化效果评价和调整方向提供依据。The second and third well patterns in Block X of Daqing oilfield are characterized by large injection and production well spacing and poor utilization,and have been adjusted into a set of well patterns through layer series well pattern development.The rising speed of water content in the block is accelerated and the decline of production is increased after six months.Use the inter-well potential monitoring technology to superimpose the monitoring interpretation results as the pure anomaly ring map and the sand body distribution map,Combining the dynamic production data and isotope monitoring data of oilfield development,analyzing the direction of water injection advantage promotion and the shape of water drive front wave after optimizing and adjusting the well network of layer series.In response to the fact that the uniformity of horizontal wave propagation is poor,targeted measures were implemented to adjust 42 wells.The natural decline rate of the block was reduced by 5.73 percentage points,and the annual water cut rise rate decreased by 0.80 percentage points.After the adjustment,the water injection development effect was significantly improved,Inter well potential monitoring provides a basis for evaluating the optimization effect and adjusting the direction of layered well network optimization.

关 键 词：井间电位监测 优势渗流通道 水驱前缘 自然递减率 动用厚度 井网优化 效果评价 

分 类 号：TE32[石油与天然气工程—油气田开发工程]