砾岩储层泥质含量的变化对物性的影响──以克拉玛依油田二中区克下组为例

EFFECT OF CHANGE IN SHALY CONTENT ON THE PERMEABILITY OF CONGLOMERATE RESERVOIR-An Example from Lower Karamay Formation in Middle District No.2,Karamay Oilfield

通过对克拉玛依二中区三采试验区粒度分析资料的整理分析发现，冲洗沉降法的分析结果明显失真（尤其是泥质含量），筛析法分析结果精度高，与油藏实际比较吻合。由于砾岩储层泥质含量比较低，其对储层物性（渗透率）的影响并不明显。

Detailed investigation of the grain size analysis data in tertiary pilot area,middle District No.2,Karamay oilfield got the idea that the result from flushing precipitation became apparently distorted.especially the shaly content,while the data from sieve analysis accord well with the actual conditions of the reservoir.Because of low shaly content in conglomerate reservoir,it doesn't obviously affect the reservoir permeability.