DRILL PIPE REPAIR
PetroTool LLC provides drill pipe repair services. Drill pipe repair is carried out under production conditions with modern equipment.
The following operations are performed in the process of repair:
- Cleaning. Inner and outer pipe surfaces are mechanically cleaned.
- Defects Diagnostics. Lock joints and pipe body flaw inspection is performed.
- Pipe straightening. Inspection is performed to correct the curvature of pipe
- Re-threading. Lock joint re-threading operation is made with modern pipe-threading machines. Control is carried out by gauge rings. API.
- Revitalizing of the lock joint geometry. This operation involves the repair of lock joints by metal welding on the worn surfaces and a subsequent machining of locks up to sizes corresponding to the GOST requirements. API.
- Hard banding (Hard Facing). Hard banding (hard facing) is used to prevent wear of lock joint outer diameter. The operation is performed with flux cored wire. This alloying material has the following advantages:
- substantial increase of service life;
- multiple drill pipe refacing by hard banding (hard facing) without removing of the old worn-out reinforcement facing;
- significant wear reduction of casing pipe due to contact with the drill pipe;
- application of welding technology for drill pipes made of highstrength alloy.
- Phosphating. Thread connections are subjected to phosphating to protect against corrosion and antifriction properties.
Technical possibilities of production:
|Group of equipment||Carry out operations||Technical parameters|
|Lathes machining centers||Turning operations on all types||
the diameter of the workpiece: min 10 mm max 530 mm
length obrabatyvaemoi details: min 20 max 2000 mm
|Milling machining centers||Complex 5-axis simultaneous machining of workpieces with high precision||
the diameter of the workpiece: min 30 max 900 mm
length obrabatyvaemoi details: min ___ max 1400 mm
|Drilling||Drilling, reaming, countersinking, countersinkSC, reaming, boring, tapping machine taps||
drilling capacity 32 mm
max product length 600 mm
|Cylindrical grinding||Grinding of outer surfaces of bodies of revolution of different materials||
the diameter of the workpiece: min ___ max 320 mm
length obrabatyvaemoi details: min ___ max 2000 mm
|Hydroabrasive||Precision notched cutting of sheet material||cutting thickness is 1...200 mm|
|Truboreza||Lathe machining tubes and blanks and pipe connections. Cutting pipe workpieces of all types and kinds of threads: conical, cylindrical, triangular, trapezoidal, metric, locking, etc.||
the diameter of the workpiece: min 80 max 410 mm
length obrabatyvaemoi details: min 30 max 12000 mm
|Band saw||Cut blanks||
billet round ø 560 mm
billet size up to 560х700 mm
|Hydraulic wrench||Screwing and unscrewing threaded pipe joints||
diameter 380 mm 70...
product length 500 mm...18000
max torque unscrewing 210 kN·m max screwing torque of 160 kN·m
|Welding equipment||Manual and semi-automatic arc welding gas (acetylene) welding|
|Heat treatment||Hardening, temper, etc.||
max size of section mm 600х650
max length 1100 mm
|Sand blasting||Surface preparation products for paint||
max size of the cross section 800x800 mm
max length 800 mm
|Phosphating||Processing of metal products with the purpose of further protection against corrosion||
max RAmeasuring the section 400x400 mm
max part length 800 mm
the temperature of the working solution to 100 °C
|Soldering||The combination of metals by introducing molten solder|
We invite You to get acquainted with production process and technology level. Ready to consider any form of cooperation.
Our staff is always ready to answer Your questions.