井间示踪剂监测技术在海上注水油田中的应用  

Application of tracer monitoring technology in offshore oilfields with water-flooding

作　　者：徐玉霞 沈明 XU Yuxia;SHEN Ming(Tianjin Branch of CNOOC,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《能源化工》2020年第4期51-54,共4页Energy Chemical Industry

基　　金：“十三五”国家科技重大专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058-001)。

摘　　要：渤海S油田经过十几年的注水开发后,注水井与生产井之间的注水水驱方向变得较为复杂。为了掌握注水井的水线推进速率和水驱方向,利用井间示踪剂监测技术,依据示踪剂运移机理,通过示踪剂产出曲线分析,达到对示踪剂测试井组高渗流通道进行定性分析的目的。对4种示踪剂进行了本底浓度测定、地层配伍性试验、热稳定性试验和静态吸附试验,以筛选出满足渤海S油田A28井组测试需求的示踪剂。试验结果表明:2,3,4,5-四氟苯甲酸示踪剂在岩石和地层中的含量少,具备较好的化学稳定性和生物稳定性,且无毒、安全、价格便宜,该井间示踪剂监测技术在海上注水开发油田中具有较好的应用价值。After more than ten years water-flooding extraction in Bohai S oilfield,the water drive direction between water injection well and producing well becomes complex.In order to clarify the water drive direction and waterline propulsion speed,the tracer monitoring technology is applied in Bohai S oilfield.Based on the tracer moving mechanism,through analyzing the tracer output curve,qualitative analysis on high seepage channel of tracer test well group can be carried out.In order to select out the tracer meeting the test requirements of A28 well group in Bohai S oilfield,the background concentration test,stratum compatibility test,thermo stability test and static adsorption test are conducted on 4 kinds of tracers.The results show that 2,3,4,5-tetrafluorobenzoic acid tracer has less abundant in rocks and strata,has good chemical stability and biological stability,and this tracer is non-toxic,safe and cheap.This technology has a good application value in offshore water-flooding oilfield.

关 键 词：渤海S 油田 高含水 注采井组 渗流通道 示踪剂 

分 类 号：TE53[石油与天然气工程—油气田开发工程]