petroleum exploration survey

例句：

1. 1. The company conducted a detailed oil exploration survey in the region.
   该公司在该地区进行了详细的石油勘探调查。
2. 2. The government's petroleum exploration survey revealed new reserves of natural gas.
   政府的石油勘探调查揭示了新的天然气储量。
3. 3. The petroleum exploration survey is crucial for understanding the geological structure of the area.
   石油勘探调查对于理解该地区的地质结构至关重要。