随钻录井快速识别储集岩与烃源岩的方法及应用

准噶尔盆地吉木萨尔凹陷二叠系芦草沟组页岩油属于典型源储共生的非常规油气藏,储集岩与烃源岩共生,常规录井过程中对储集岩及烃源岩识别约束条件较多.地化录井作为录井技术的一种特殊手段,在储集岩评价方面具有独特的优势.通过对二叠系芦草沟组资料重新认识,利用完井试油结论进行验证,利用岩石热解色谱技术、岩石热解-气相色谱技术、三维...

Method and application of rapid identification of reservoir and source rocks during mud logging while drilling

The shale oil of Permian Lucaogou Formation in Jimusar Sag,Junggar Basin is a typical unconventional hydrocarbon reservoir with coexisting source and reservoir.Reservoir rocks and source rocks coexist.In the process of conventional mud logging,there are many constraints on the identification of reservoir rock and source rock.As a special means of mud logging technology,geochemical logging has unique advantages in reservoir rock evaluation.Based on the new cognition of Permian Lucaogou Formation data and verification of well completion test results,a set of evaluation standards for geochemical logging technology of Permian Lucaogou Formation is established by using rock pyrolysis chromatography technology,rock pyrolysis-gas chromatography technology,3D quantitative fluorescence technology and NMR technology,which plays an important role in the identification of reservoir rocks and source rocks.According to the evaluation criteria of reservoir rocks and source rocks,a total of 7 layers of well test sections were proposed,and the conclusion was accurate in 6 layers.The interpretation coincidence rate was 85.7%.It provides a new technical means for regional exploration and development,and improves the application effect of mud logging technology in this block.