The important role of casing centralizer in drilling industry
- Categories:centralizer
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- Time of issue:2022-08-10
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(Summary description)A casing centralizer is a device installed on the casing string to center the casing string in the wellbore. It is one of the casing accessories.
The important role of casing centralizer in drilling industry
(Summary description)A casing centralizer is a device installed on the casing string to center the casing string in the wellbore. It is one of the casing accessories.
- Categories:centralizer
- Author:
- Origin:
- Time of issue:2022-08-10
- Views:0
A casing centralizer is a device installed on the casing string to center the casing string in the wellbore. It is one of the casing accessories. There are two types of casing centralizers: rigid centralizers and spring centralizers. The casing centralizer has the characteristics of simple structure, convenient use, long service life and relatively low cost.
The use of the casing centralizer can not only ensure a certain thickness of the cement sheath outside the casing string, but also reduce the resistance when running the casing, avoid sticking to the casing, and is conducive to improving the cementing quality.
The centralizer is an oil production tool used in oil field pumping rig wells. It is a new type of product that can improve the pumping efficiency of the oil pump. It adopts a sliding valve automatic opening and closing structure and is connected to the sucker rod. The valve moves upward to open the oil passage on the centralizer, and when the sucker rod travels upward, the slide valve moves downward to close the oil passage on the centralizer. Therefore, by lifting the liquid column in sections, the load of the sucker rod and the pump load is reduced in sections, the pump leakage is reduced, the elastic elongation deformation of the sucker rod is reduced, and the stroke loss is reduced, thereby improving the effective stroke of the oil sucking pump.
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