- 項(xiàng)目深度是多少?
- How deep is the project?
- 用于什么巖層?
- What is the rock?
- 巖層是硬地層、軟地層還是復(fù)合地層?
- Is it hard, soft or complex rock?
- 巖層是非常完整、半破碎還是破碎的?
- Is the rock very complete, semi-broken or broken?
- 巖層的研磨性如何?
- How is the abrasiveness of rock?
- 之前使用過(guò)其他品牌的鉆頭嗎? 如有，是什么品牌 (可選) ?
- Have you use any other brand before? what is the brand(optional)?
- 以前所使用品牌鉆頭的性能如何?
- How is the performance previously?

例如:
such as:

→ 進(jìn)尺速度大約是多少?
→ drilling speed?
→ 鉆井深度是多少 (米) ?
→ meters downhole?
→ 鉆頭壽命是多少?
→ drill bit working life?
以上問題將幫助我們更熟悉您的地面情況，同時(shí)為您提供更準(zhǔn)確、更合適的鉆頭.
Above questions will help us be more familar with your ground situation, meantime, more accurate and appropriate bit will be provided to you.