Only sure way to know is to drill a well.
唯一可靠的已知方法就是钻一口井。
Average cost of drilling a well over $ 300 000; actual cost can go over $ 8 000 000.
钻一口井的平均成本要30多万美元;实际成本可能超过800万美元。
When was the first offshore oil well drilled?
第一口滨海油井是什么时候打的钻？
Well Dina-11 is a newly planed exploratory well, as the former Dina-1 was abandoned because of pipe sticking in the salt-water formation with ultra-high pressure.
迪那11井是继迪那-1井钻遇超高压盐水层卡钻报废后,新布的一口预探井。
We have already smoothed out the difficulties in drilling the first oil well.
我们已排除了钻打第一口油井的种种困难。
The heavy drilling apparatus was blown sky high out of the hole with a tremendous roar.
那沉重的钻井设备随着一声惊人的怒吼，脱离井口，飞向高空。
An onshore waterflood, on the other hand, generally involves the drilling of several injection wells and the conversion of several existing wells onto injection wells.
另一方面，陆上注水方案通常要牵涉到钻几口注水井和转换几口已经存在的井为注水井。
Determination of Safe Window of Drilling Fluid Density for Deepwater Drilling
深水钻井安全钻井液密度窗口确定方法研究
Drilling Fluid Technical Problems in Well Yan106 and Solutions
川口油田延106井实钻难点及钻井液对策
Study on Deepwater Drilling Wellhead Stability Analysis of West Africa JDZ-2-1 Well
西非JDZ-2-1井深水钻井井口稳定性分析研究
The first oil well was drilled by E. L. Drake, a retired railroad conductor.
第一口油井为E-l-瑞克，一个退休的火车检票员所钻得。
Shell/Benton/CNPC venture drills first exploration well in Liaohe
壳牌、奔通和中国石油天然气集团公司联合在辽河开钻第一口探井
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
Discussion on full face pull construction technology of the deep mine shaft drilling method
深立井钻井法全断面一次钻进施工技术的探讨
a bit or drill having deep helical grooves.
有深螺旋状凹槽的一种钻头或钻井。
a drilling bit with cutting edges usually hard-tipped against wear.
有靠着钻身的硬顶和切边的一种钻井钻头。
A well or drilling that yields natural gas.
一种产天然气的井或钻井
Study on New Integrated Working Fluid Technology for Drilling and Cementing
新型钻井固井一体化工作液技术研究