Hydraulic scrapers type SG


APPLICATION

The Hydraulic Scrapers are designed for cleaning the internal surface of casing and tubing from mud, cement, rust, scale, paraffin, perforation burrs and other obstructions.

 

CONSTRUCTION

The Scraper is a one-piece tubular mandrel with box and pin connecting threads on top and bottom ends. The mandrel has six die type blades with hardened edges installed into longitudinal slots. Blades teeth construction is spiral. Blades are kept into the body grooves by shear ring due to four screws.

 Under the pressure of washing liquid pumped into the pipes the piston influence blades through springs move them and press to the cleaning surface. Blades sliding on the cleaning surface cut burrs and dirtying. Blades back moving is carried out by the spring. There are scrapers of two versions left and right. String cleaning is carried out during process of scraper lowering in the well on drilling pipes or tubing with further equipment lifting, retrieving and rotation.

 

When ordering, please specify

Assembly name and nominal size;

Version (LH or RH);

Type of connecting thread if other than stated in the table;

Diameter of cleaning string.

 

It is recommended to order

Bottom blade                           - 6 pcs. (2 sets) for each size of pipe to be cleaned;

Top blade                                - 6 pcs. (2 sets) for each size of pipe to be cleaned;

Split ring                                  - 2 pcs. ; - Spring – 24 pcs. (2 sets)

Securing screw for split ring    - 8 pcs. (2 sets)



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