How Rigid Centralizer Is Going To Change Your Business Strategies?

Aug 16
09:55

2016

Ryan Justin

Ryan Justin

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Casing Centralizer is a mechanical device that keeps casing from joining the wellbore wall.

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Rigid centralizer is a mechanical device secured around the casing at various locations. The casing is kept away from making further contact with the wall. The washing of an inclined well plays an important role both during drilling and in preparing the well,How Rigid Centralizer Is Going To Change Your Business Strategies? Articles thus it is important for using rigid centralizer for running and cementing casing.

You can find two distinct designs of centralizers which is bow springs design and the rigid blade design. The bow springs are slightly larger than the wellbore, thus, they can provide complete centralization in vertical or slightly deviated wells. Therefore, they do not support the weight of the casing very well in deviated wellbores.

Rigid blade design is the rugged design which works well in deviated wellbores. Their centralizers are smaller than the wellbore, thus, they does not provide good centralization as bow-spring type centralizers in vertical wells. Rigid centralizer is slightly more expensive and can cause trouble downhole if the wellbore is not in excellent condition.

How Rigid Centralizer Is Going To Change Your Business Strategies?

  1. Since, the centralizers’ continuous annular clearance around the casing allows cement to completely seal around the casing to the borehole wall. It is a well defined thing to say that each centralizer types and properties vary from each other.
  2. The casing centralizer oriented by an orienting ring is availed with an offset aperture and a pump-down ball. This ring is set in the bottom of the casing in a way where the planes of the opening and the centralizer blades coincide downwards.
  3. In areas where hole-enlargement is required, those areas are already flowed with both drilling fluid and cement as it is predominantly on the higher side of the well. It is in between the pipe and the top wall of the well.
  4. With a continuous 360-degree annular space around casing, it allows the cement to completely seal the casing to the borehole wall.
  5. During casing-running process, the cement may not flow completely around the pipe in these cavernous sections. But the study refers that the cavern formation features in inclined wells can give a key to further prediction of technology for their washing and casing cementation.
  6. The use of appropriate fluid spacers is one method to bridge the two different fluids. Cement slurry and the mud have completely different tasks; therefore, the flow properties of each type of fluid are different. Both are typically non-Newtonian fluids with different viscosities, shear strengths, and weights.

The raw material for rigid centralizer easy to find according to customers requirement. They are even found in various grade steel plates to choose from. You can find a kind of casing centralizer which is shorter than rigid casting centralizer on production, lighter weight value; it can also save the shipping cost. Thus, you can avail more standard product appearance due to use the mould production, increasing product standardization and lowing defective rate.