摘要
针对大斜度气井提高井筒内流体识别产气剖面精度,引进了阵列持气率仪(GAT),利用流体对光折射率的差异实现流体的识别。现场结果表明,GAT仪器能识别1 mm微小气泡,适合于不同流态产气识别,在大斜度井中与RAT响应一致性强,在套管井中产气识别效果好于筛管井;筛管完井多封隔器有利于提高产出剖面的解释精度,鉴于筛管完井方式的局限和筛管外窜流的存在,更加精细的解释剖面建议结合噪声测井等技术得到。
To enhance the accuracy of fluid identification in gas production profiles within highly-deviated wells,a gas array tool(GAT)was introduced.This tool identifies fluid by using the differences in light refraction indices between different fluids.Field results indicate that the GAT can detect micro-bubbles as small as 1 mm and is suitable for identifying gas in various flow regimes.The GAT demonstrates a strong consistency with the RAT in highly-deviated wells and shows superior performance in casing wells compared to screened wells.Multiple packers in screened completions improve the interpretation accuracy of production profiles.Given the limitations of screened completions and the presence of cross-flow outside the screens,it is recommended to combine this tool with bats logging and other techniques for more refined profile interpretation.
作者
胡守林
HU Shoulin(China Petroleum Technical Service Corporation Limited,Beijing 100007,China;China Petroleum Engineering Technology Branch,Beijing 100007,China)
出处
《油气井测试》
2024年第4期56-60,共5页
Well Testing
基金
国家油气科技重大专项子课题“海外测井数据库应用”(2017ZX05019-005-007)。
关键词
大斜度井
套管完井
筛管完井
生产测井
阵列持气率仪
产气剖面
流体识别
解释精度
highly-deviated well
casing completion
screen completion
production logging
gas array tool
gas production profile
fluid identification
interpretation accuracy
