旬邑探区长8油层地层特征分析

The analysis of the formation characteristics of the Chang 8 oil layers in the Xunyi region

鄂尔多斯盆地南缘的旬邑地区石油开发程度不足,含油层较浅,有利于后期的开发,但前期的地质研究不足,经过前期的勘探开发后显示,长8段储层有好的油气显示,但是长8油层的产油量达不到理想的效果,因此有必要对该地区开展地质特征重新认识研究工作,为后期的油气勘探工作提供科学依据。将利用地层对比与砂体剖面分析发现由于储层的砂泥互层与隔夹层比较多导致储层的非均质性特别强,这是制约长8油层产油量的重要因素。

With the low degree of oilfiled development in Xunyi exploration area of ordos basin,reservoir,development potential,weak basic geological research and development of petroleum exploration.According to the results of a Chang 8 oil sand has good oil and gas discovery,but the basis of the previous geological work Chang 8 reservoir of oil production is not ideal,become the main factor of restricting the overall Xunyi exploration area of oil and gas exploration deployment.So it is necessary for the region to carry out the geological characteristics of reevaluation of research provided the scientific basis for oil and gas exploration in the late work.Will use the correlation of strata and the sand body profile analysis found that due to the sand mud interbed reservoir and interlayer insulation more lead to particularly strong heterogeneity of reservoir,it is an important factor of restricting Chang 8 oil producing capacity.