储层岩性及物性定量解释方法探讨

Discussion on Quantitative Evaluation of Formation Lithology and Physical Property

华学理,袁庆友,李延芝,闫淑红,李　燕

Hua Xueli , Yuan Qingyou, Li Yanzhi, et al

中原石油勘探局地质录井处

Geologic Logging Company , Zhongyuan Petroleum Exploration Bureau, SINOPEC, Henan 457001 , P. R. China

通过对储层地质、测井等参数变化规律的研究,导出了依据dcs 、dcn 等参数进行现场快速、定量评价储层砂泥岩百分含量及孔隙度的关系及公式。通过5 口井的试验证明,效果较好,计算孔隙度与测井解释孔隙度绝对误差小于1.2 % ,完全可以满足生产需要,对录井人员现场评价储层有一定的指导意义。

The paper studies the characteristics of geological and logging parameters of formation , bring forward the relationship and equation to quickly and quantitatively evaluate porosity and sandstone/ mudstone content in formation based on dcs , dcn exponent and other parameters. The result is very obvious via proved data of the five wells. By comparing with logging interpretation porosity , the absolute error is less than 1.2 percent , which can meet demands of geological logging and guide geological technician to make formation evaluation in the field.