碳氧比能谱测井在南六区西块的应用

The Application of Carbon-Oxygen Spectrometry Log in the Western Nanliu Region

针对大庆油田南六区西块的地质特点对碳氧比测井处理与解释模型进行了改进 ,建立了计算泥质含量、粒度中值、孔隙度、束缚水饱和度、渗透率等参数的解释模型 ,对 18口井碳氧比能谱测井资料进行处理。通过对解释成果在三次加密调整井中应用的地质效果统计分析 ,充分说明了碳氧比能谱测井资料已成为油田开发后期 ,加密调整和综合措施调整方案编制中判断表外、薄差储层剩余油动用程度的重要依据 ,具有套后其它生产测井方法无可替代的优势。油田开发后期的加密调整 ,需要纵向分辨率较高的碳氧比能谱测井方法 ,伴随粒子碳氧比能谱测井具有较高的纵向分层能力 ,是加密调整和综合措施调整应该考虑的首选碳氧比能谱测井方法。

In the light of geological features of westblack, Nanliu zone in Daqing Oilfield, the C/O log data processing and interpretation model is improved, based on which established are new math models for calculation of shale content, median grain diameter, porosity, bound water saturation and permeability, etc. C/O log data from 18 tertiary infilling & adjusting wells are processed, the interpreted results of which show that the C/O log data are an important proof judging the thin reservoir's remaining oil saturation, infilling & adjusting plan and reperforating in the later stage of oilfield development, and also have more advantage over other production logging techniques after casing running. The later oilfield development and infilling & adjusting wells need C/O log with higher vertical resolution. Conjugate particle C/O log has higher longitudinal zonation ability, and becomes the first selectable logging technology.