A successful cement job is the foundation of long-term well integrity. However, confirming the quality of cement behind the casing requires more than conventional logging.
The combination of the Ultrasonic Imager Tool (USIT) and the Cement Bond Log (CBL) provides a comprehensive assessment by integrating ultrasonic imaging with acoustic measurements, giving engineers greater confidence in cement evaluation.
What does USIT–CBL provide?
- Evaluates cement bond quality around the casing.
- Detects channels, micro-annuli, and poor cement placement.
- Identifies casing corrosion, wall thickness changes, deformation, and eccentricity.
- Produces high-resolution 360° ultrasonic images of the casing and cement sheath.
- Supports well integrity assessment and informed decisions for remedial cementing operations.
Unlike a conventional CBL alone, USIT offers a detailed circumferential view of the casing and cement sheath, making it easier to identify localized defects that could affect zonal isolation and long-term well performance.