储层裂缝的地球化学判识方法及动态验证

Geochemistry Analysis and Dynamic Verification of Reservoir Fractures

特低渗透储层依靠压裂产生的裂缝才能生产。为了研究裂缝的分布,采用气相色谱指纹法分析对比不同原油样品的指纹特征,依据指纹相似则井间存在裂缝,指纹差异则井间存在渗流遮挡的原则,对白209区块延长组长6特低渗透储层裂缝分布进行研究,并与动态分析结果进行对比,两者具有一致性。研究表明,地球化学色谱指纹法是对传统方法的补充,研究结果对油田生产具有指导作用。

In ultra-low permeability reservoirs,fractures should be produced for normal production.In order to research the distribution of fractures,gas chromatography fingerprint technique was used to analyze and compare different oil samples.The fractures existed between wells if fingerprints were similar and vice versa.The result is compared with dynamic analysis and both of them are coherence.The research indicates that the fingerprint technique is preferable complement to traditional technique and can be used to guide oil field yield.