原油指纹技术在合采油井分层产能监测中的应用

Application of Oil Fingerprints Technique in Monitoring Individual Zone Production Allocation of Commingled Oil Wells

原油指纹技术是根据单层原油指纹差异及混合原油的指纹变化特征，配合室内不同比例的配方，建立计算模型，求得合采油井分层产量贡献。研究表明，原油实际配方与指纹计算的误差，二层小于6％，三层小于10％． 指纹计算结果与生产测井的误差也在10．4％以内，可用来计算合采油井分层产量贡献，监测油层的工作情况。

Oil fingerprints technique is based on oil fingerprints differences of individual zone and fingerprint variation characteristics of commingled oil combined with different proportion of artificial formulation made in laboratory and a calculation model has been established． Then the contribution allocation of individual zone can be directly determined． The results showed that the errory between artificial formulation and oil fingerprints calculation is less than 10％ for two zones commingled oil well while it is less than 13％ for three zones commingled oil well． Besides the errors between fingerprints calculation result and logging result is less than 15％ too． So this technique can be used to calculate the contribution of individual zone in commingled oil well and monitors the performance of individual oil producing zone．