Oil Well Solid Body Spiral Blade Rigid Nylon Casing Centralizer
Casing centralizer is one of the necessary conventional casing accessories, upon well operationscompletion, the rational use of casing centralizer can play the role of:
Reducing lower casing resistance phenomenon, making the casing smoothly down to the design position;
The composite centralizer is used during running and cementing operations to centralize casing.
Made of advanced composite, the one-piece centralizer has a low coefficient of friction, is heat resistant, and is highly durable.
Thermoplastic Solid Rigid Centralizers are made of special engineered polymer material to meet the various well conditions. This material has high abrasion resistance for maximum stand off and can withstand in wells having temperature upto 400oF temperature. It has low coefficient of friction and ultimate drag forces for performing excellent in deviated and horizontal wells. These centralizers are impact resistive having optimum tensile and yield strength.
The Vanes of these centralizers are designed to have improved hole cleaning by filter mud cake removal and enhanced localized turbulence for improved cementing.
The composite material performs reliably even in extreme wellbore conditions.
Unlike many plastic centralizers, this centralizer withstands high-impact loading and is highly wear resistant.
It makes the casing centralized in wellbore and improves cementing quality.
1.Spiral Vane increase annular turbulence.
2. With the shape of stream-lined, it enables casing run easily in wellbore.
3.Both straight blade and spiral blade are available.
4.The material can be cast steel or cast aluminum or nylon P66.
Hooping In-Dia. (mm)
Amount of spring(mm)
5-1/2" x 8-1/2"
7" x 9-5/8"
7" x 8-1/2"
8-5/8 x 12-1/4"
9-5/8 x 12-1/4"
10-3/4 x 12-1/4"
The composite centralizer has a smooth, tapered construction to easily pass obstructions in the wellbore, which makes it well suited for horizontal applications.
The centralizer enables casing strings to reach total depth efficiently, provides optimal standoff for mud displacement, and greatly enhances cementing operations.