| 1. | The density logger consists of a radiation source .
密度测井仪包括辐射源。 |
| 2. | Logs are plotted in depth,
测井曲线是按深度画出的。 |
| 3. | The neutron log is primarily responsive to the amount of hydrogen in the formation .
中子测井对岩层的氢含量有显著反映。 |
| 4. | Limitations of space prevent us from covering electric logging in this book .
鉴于篇幅有限，我们在本书不准备讨论电子测井技术。 |
| 5. | A seismic trace calculated from well-log data is called a synthetic seismogram .
由测井资料计算出来的地震记录道称为合成地震记录。 |
| 6. | The purpose of ip logging is to determine the depth and geometry of the polarizable bodies .
IP测井的目的在于确定极压体的深度和形状。 |
| 7. | Temperature logs in bore holes down to several thousand metres are made by cable probes .
几千米钻孔用的温度测井装置是用电览探头做的。 |
| 8. | More sophisticated mechanical logs have been introduced to the petroleum industry over the years .
这些年来，石油工业又引进了一些更完善的地球物理测井法。 |
| 9. | Well logging transcends the boundaries ordinarily established between geology, geophysics, and petroleum engineering .
测井超越了通常在地质、地球物理和石油工程中划定的界线。 |
| 10. | Combination of these logs, supported by plotted sample description, are used in establishing precise subsurface stratigraphic correlations .
现在综合应用这些测井方法，再结合岩样描述，进行精确的地下地层对比。 |
