The hydraulic casing centering device solves the problem that the commonly used casing centralizer is improperly righting, and adopts hydraulic external force to ensure that the casing is centered to improve the cementing quality and meet the requirements of stratified production and high-pressure stratification reconstruction.
Features
1. Can be connected to any desired position in the casing string, the length of moderate, easy-site connection.
2. Self-protection design, you can drag up and down within the wellbore, will not advance expansion. With self-locking mechanism, does not retract after expansion.
3. Use hydraulic control, strong support.
4. Material properties higher than the casing performance, to ensure the overall strength of the casing string.
5. Deformation range, to meet the 30% of the caliper expansion rate.
6 cylinder seal to take a combination of sealing, sealing effect is good.
7. Selection of high temperature materials, the use of temperature reached 180 degrees Celsius.
8. After inflation, the annular flow area is not affected.
Technical Parameters