摘要
同位素沾污、低注井同位素示踪剂因沉降造成的上返速度慢或无法上返、大孔道地层同位素示踪剂失踪等是影响注水开发油田后期吸水剖面测井资料质量的主要问题。同位素示踪剂载体的物理参数 ,尤其是其密度 ,是产生上述问题的重要因素。通过对同位素示踪剂载体技术指标优选而生产的一种新型同位素示踪剂 ,可以解决低注井同位素上返速度慢的问题 ,并能有效识别大孔道地层 ,减少同位素沾污。这种同位素示踪剂载体已在河南油田吸水剖面测井中应用 ,并见到了很好的效果。
The main problems which affect the quality of injection profile logs in maturely waterflooded oilfields are isotopic contaminant, slow isotopic tracer movingup or even not movingup caused by its falling down in low water injection wells, and isotopic tracer missing in macropore formations The physical parameters of isotopic tracer′s support carrier, especially its density, are fatal factors producing these problems. A new isotopic tracer produced according to optimized specification of isotopic tracer′s support carrier can perfectly solve the problem of slow isotopic tracer movingup, effectively recognize micropore formations, and reduce isotopic contaminant. The application of this support carrier to isotopic injection profile logs has been very effective in Henan Oilfield.
出处
《测井技术》
CAS
CSCD
2003年第5期427-431,共5页
Well Logging Technology
