| 1. | Such control points are often wells .
这种控制点常是钻井。 |
| 2. | One or more key marker beds were identified for the purpose of leasing and drilling .
为了租地和钻井的需求，他们对比了一个或更多的关键标志层。 |
| 3. | 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。 |
| 4. | Remarkable progress had been made in the technique of drilling wells long before the earliest oil-wells .
远在最早的油井之前，钻井技术就已经取得了显著的进步。 |
| 5. | Stratigraphic significance commonly is apparent only where seismic data are tied with well data .
通常，只有在地震资料与钻井资料相结合的地方，地层学的意义才是明显的。 |
| 6. | In order to map the structure of the upper surface of such a sandstone body, abundant well control is required .
要编出这种砂岩体的上层面构造图，需要有大量的钻井资料。 |
| 7. | The heat contained in a natural steam field is exploited by drilling a suitable number of wells down to the reservoir .
天然蒸气田所含有的热能可以通过钻井的方法，即打适当数量的井孔到达热储的方法进行开采。 |
| 8. | The discrepancy between basement depths estimated by this means and those indicated by drilling has been on the average no greater than 5 percent .
用这种方法估算的基底深度与钻井探明的深度之间的差别，平均起来不超过5。 |
| 9. | In the course of drilling, mining and deposition of hear producing materials in the subsurface, the original natural geothermal field is disturbed .
在钻井，采矿和发热物质的地下深积的过程中，原始的天然地热场受到了扰动。 |
| 10. | Any deviation in the flowline temperature trend
钻井液出口管温度如有任何变化。 |
