1·Low compressive strength of soft to medium formations. Such as soft shale, soft limestone, soft sandstone, hard and soft abrasive interbedded medium formation.
低抗压强度的软到中等地层，如中软页岩。中软石灰岩。中软砂岩。和软硬研磨性夹层的中等地层。
2·Although more and more PDC bits are used in drilling operation, but the results of drilling in the hard and soft interbedded formation are not desired.
PD C钻头在钻井破岩中所占比例越来越大，但在软硬交错的多夹层地层钻进时效果却不理想。
3·This paper describes that well logging curves are carried out optimization and normalization correction according to the geologic characteristics of the interbedded strata and logging response.
本文根据夹层地质特点和曲线响应，对测井曲线进行了优化选择和标准化校正，在此基础上提出了一种合理的夹层参数测井解释方法。