应用热解参数划分储层含油级别

CLASSIFICATION OF OIL-BEARING GRADES OF RESERVOIRS BY THERMOLYSIS PARAMETERS.

用大庆油田４个地区的热解资料，建立了不同地区含油级样品Ｓ１＋Ｓ２均值与各含油级别的Ｓ１／（Ｓ１＋Ｓ２）均值之间的线性关系；根据含油级别的定义，计算得不同含油级别热解参数Ｓ１＋Ｓ２的理论值相对范围，并进行论证。解决了用分析测试代替人为经验划分含油级别问题，为提高用地质录井资料划分含油级别的可靠性、科学性和一致性提供了一种新方法。

By using the thermolysis data coming from four blocks of Daqing oil field, this paper builds up a linear relation between the average value of S1+S2 and the average value of S1/(S1+S2) from samples of different oil-bearing grade in various areas. In the light of the definition of oil-bearing grade the authors calculated the theoretical relative distribution of S1+S2 of different oil-bearing grade which later on was proved. The combination of the above two has successfully solved the problem of classification of oil-bearing grade through test and analysis, and thus put forward a new method to improve the reliability and consistency of classification of oil-bearing grade in oil field geological logging activities.