SP shale baseline

例句：

1. 1.The geologists used the SP shale baseline to determine the depth of the oil well.
   地质学家使用页岩基线来确定油井的深度。
2. 2. The study focused on the SP shale baseline and its impact on climate change.
   该研究关注页岩基线及其对气候变化的影响。
3. 3. The company aims to use the SP shale baseline to reduce its carbon footprint.
   该公司旨在利用页岩基线来减少其碳足迹。