Fishing Services
CASING SCRAPERS
Mechanical Scrapers
Application
Casing Scraper is ideal for the removal of mud, cement, bullets, rust, scale, paraffin, perforation burrs and other obstructions from the inside walls of casing. Maintaining a clean casing I.D. is important when operating drilling, fishing, or wireline tools. Likewise, packers, patches, spears, and similar tools require clean surfaces to grip. Obstructions on casing walls will frequently cause these tools to fail or become difficult to operate.
Construction
Utilizing a simple one-piece mandrel design, the Bowen Casing Scraper is constructed to be rugged, yet simple to operate and maintain. The Scraper conditions 50 percent more surface area than any other tool on the market. The full circle blades are so spaced to contact 600° (almost two complete circles) of casing surface at once. Short and compact, the Scraper also incorporates a long taper on the blades for passing through joints without hanging. The Scraper works in vertical or rotary operations and may be run on drill pipe or wireline.
Casing Scraper is ideal for the removal of mud, cement, bullets, rust, scale, paraffin, perforation burrs and other obstructions from the inside walls of casing. Maintaining a clean casing I.D. is important when operating drilling, fishing, or wireline tools. Likewise, packers, patches, spears, and similar tools require clean surfaces to grip. Obstructions on casing walls will frequently cause these tools to fail or become difficult to operate.
Construction
Utilizing a simple one-piece mandrel design, the Bowen Casing Scraper is constructed to be rugged, yet simple to operate and maintain. The Scraper conditions 50 percent more surface area than any other tool on the market. The full circle blades are so spaced to contact 600° (almost two complete circles) of casing surface at once. Short and compact, the Scraper also incorporates a long taper on the blades for passing through joints without hanging. The Scraper works in vertical or rotary operations and may be run on drill pipe or wireline.
Hydraulic Scrapers
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, with left-hand and right-hand connections. String cleaning is carried out during process of lowering the scraper in the well on drilling pipes or tubing with further rotation.
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, with left-hand and right-hand connections. String cleaning is carried out during process of lowering the scraper in the well on drilling pipes or tubing with further rotation.