Professional Casing Centralizers Manufacturer from China
Cementing Basket manufacturer will take you to know: cementing quality inspection method
The manufacturer of Cementing Basket tells you the construction work of cementing a well, running casing into the well and injecting cement into the annular space between the wellbore and the casing. The manufacturer of Cementing Basket tells you that it is an indispensable and important link in the process of drilling and completion operations, which includes casing running and cement injection.
The manufacturer of Cementing Basket tells you that cementing technology is a multi-disciplinary comprehensive application technology, which is systematic, one-time and short in time. The main purpose of cementing is to protect and support the casing in oil and gas wells, and to seal oil, gas and water formations.
Cementing quality inspection method:
1. Acoustic Amplitude Logging (CBL): Cementing Basket manufacturer tells you that the cementing is good, the sound amplitude is small; the cementing is poor, the sound amplitude is large.
2. Variable Density Logging (VDL): Cementing Basket manufacturer tells you that if the first interface is well cemented, the second interface is poorly cemented, then the casing wave signal is weak, and the formation wave signal is also weak; the first and second interfaces are well cemented, then the casing The wave signal is weak and the formation wave signal is strong. If the first interface is poorly bonded, it is difficult to judge the bonding of the second interface.
3. Well temperature logging: determine the cement return height as a supplementary explanation of the cement filling degree.
4. Cement Bond Evaluation Logging (CET): The manufacturer of Cementing Basket tells you that the attenuation rate of the acoustic pulse depends on the acoustic impedance of the annulus medium: when there is drilling fluid outside the casing, the acoustic impedance is small and the attenuation is very slow; outside the casing When it is cement paste, its acoustic impedance is larger and its attenuation is fast; moreover, the higher the strength of cement stone, the greater its acoustic impedance, and the faster the sound wave energy attenuation, that is, the attenuation can reflect the strength of cement stone.
Steel Solid Rigid Centralizer is generally used in regular holes without neck shrinkage or large belly section. When the well diameter reaches a certain level, no amount of rigid centralizers can make the casing reach the desired medium.