Highlights
Highlights
Benefits
- 避免昂贵的生产损失或不必要的补救
- 获取类似于完整波形签名显示的其他数据
- Ensure reliability in high-temperature applications with 400°F (204°C) rating
Applications
- Cement bond evaluation in casing formation annulus
- Zonal isolation identification
- High-pressure/ high-temperature (HP/HT) environments
概述
TheAcoustic Cement Bond Log™ (CBL™) well integrity evaluation servicefrom Baker Hughes evaluates the effectiveness of the cement sheath surrounding your casing. The evaluation is performed by analyzing the effect of the casing, cement sheath, and the formation on the acoustic wave emanating from the acoustic CBL instrument. The amplitude curve of the reflected acoustic wave is maximum in unsupported casing, and minimum in sections where the cement is well bonded to the casing and the formation.
The log presentation includes a recording of the reflected acoustic waveform, either as a half-wave or a full-wave (signature) display, or as a variable-density display. These waveforms help identify the wave path and confirm the interpretation of the amplitude curve. When complete bonding is indicated, the through-the-formation wave is identifiable, and can be used much like an openhole acoustic log.
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