注水调节在低渗透储层吸水剖面测井中的适应性研究  

FLEXIBILITY RESEARCH OF WATER INJECTION REGULATION IN WATER INJECTION PROFILE LOGGING OF LOW PERMEABILITY RESERVOIRS

作　　者：汤宏平[1,2] 段银鹿 李高仁[1,2] 时卓[1,2] 何庆兵[1,2] 

机构地区：[1]低渗透油气田勘探开发国家工程实验室 [2]中国石油长庆油田分公司 [3]中国石油测井有限公司

出　　处：《国外测井技术》2011年第4期53-56,4,共4页World Well Logging Technology

摘　　要：在长庆低渗透油田放射性同位素示踪吸水剖面测井过程中，如何减少同位素沉淀和粘污，提高同住素微球进层率，是吸水剖面测井资料采集成功与否的关键。通过室内实验和大量现场测试对比分析，对同位素微球在井下环境中的运动和注水调节后的适应情况进行归纳总结。结果表明，选用恰当的同位素微球密度和粒径是决定同位素示踪吸水剖面测井施工成功与否的先决条件；而对于渗透性差、配注量较小的低渗透层位，通过合理的注水调节是测全、测准注水井动态资料的关键；也是提高吸水剖面测井资料采集质量和时效的有效手段之一。In radioisotopic tracing water injection profile logging in the low permeability oilfields of Changqing, how to reduce isotopic sedimentation and stain and how to improve the rate of isotopic microsphere into the layer are the key of water injection profile logging data acquisition .Through contrastive analysis of laboratory experiments and large number of on-site testing,the adaptation condition of the movement of isotopic microsphere downhole after water injection regulation is summarized.The results show that selection of proper isotopic microsphere density and particle diameter is a prerequisite which determines whether isotopic tracing water injection profile logging succeed or not. For the low permeability layers with small amount of injection, proper water adjustment is the guarantee for whole logging and accrate measurement of dynamic data of the injection well.It is also one of the effective means of improving data acquisition quality and time efficiency.

关 键 词：吸水剖面测井 注水调节 低渗透 同位素 

分 类 号：TE272[石油与天然气工程—油气井工程]