酒东盆地储集层岩石热解气相色谱录井评价方法

虽然岩石热解气相色谱录井技术在酒东盆地储集层解释评价中发挥了一定作用，但由于解释方法单一，仅依靠样品峰积分面积大小和谱图形态判别油水层，人为因素对解释评价结果影响较大。为了进一步提高录井解释水平，通过对14口井32层岩石热解气相色谱录井资料的统计分析，结合试油结果，在阐述不同储集层基本谱图特征的基础上，建立了单层多样和邻井同层系油样组分体积分数与碳数分布对比图，刨建了轻重比与样品峰积分面积交会图板，确定了以基本谱图与派生谱图相结合的定性解释和应用交会图板的定量评价方法。实际应用表明，该方法的解释符合率达到了80％以上，为玉门油田酒东盆地储集层的录井解释评价提供了可靠手段，效果较好。

Mud logging evaluation method of rock pyrolysis gas chromatography in Jiudong Basin reservoir

Although the mud logging technology of rock pyrolysis gas chromatography plays a certain role in the interpretation and evaluation of Jiudong Basin reservoir,the human factor results in a greater impact on the interpretation and evaluation by relying solely on peak area size of the sample and spectral patterns as a single interpretation method to distinguish oil and water layers.In order to further enhance the level of mud logging interpretation,by the statistical analysis of rock pyrolysis gas chromatography logging data for 32 layers from 14 wells,combining with the results of the oil test and on the basis of describing basic spectrum characteristics of the reservoirs,the authors established the comparison chart between carbon number distribution and component volume fraction for the single layer with multi samples and same layer oil sample with that of adjacent wells,created the intersection chart of light & heavy ratio and the sample peak integral area and determined the method of qualitative interpretation in the combination of basic spectra and the derived spectrum and that of quantitative interpretation by using the intersection chart.Practical application showed that the interpretation coincidence rate of the method reached over 80%,providing a reliable means for mud logging in Jiudong Basin reservoir.