在大多数情况下，随后的测量(如在完井阶段所进行的测量)都被校正至基于司钻深度的井口基准面。
In most cases, subsequent depth measurements, such as those made during the well completion phase, are corrected to the wellhead datum that is based on drillers depth.
其次，综合运用“层次分析法”和“模糊综合评价法”对川东北矿区油气钻井的钻前风险、钻进风险和完井风险进行系统评价，得出钻前、钻进和完井阶段的风险等级状况；
Secondly, to conduct a systematic assessment on the risks of the three stages with the integrated AHP and fuzzy evaluation method to obtained their respective degrees of risk status.
随着油田进入中后期开发阶段，原有的一些完井技术要求已经不能满足现场需求。
At the middle and final stages of oilfield development, the original technical requirements for well completion cannot meet field needs.
为了找出最好的增产储层，A-1井的完井工程师认为本井应分为12个压裂阶段。
To achieve optimal stimulated reservoir volume, 12 stages were identified from the completion adviser for Well A-1.
为了找出最好的增产储层，A-1井的完井工程师认为本井应分为12个压裂阶段。
To achieve optimal stimulated reservoir volume, 12 stages were identified from the completion adviser for Well A-1.
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