Reconditioning Services

Transcription

1 Rainbow Mechanical and Electrical Works Reconditioning Services Mud Motor Rotors and Down hole tools

2 Rainbow Mechanical and Electrical Works Part of Trinity Holdings, UAE. Established in 1991, Abu Dhabi,to offer specialized services to Oil & Gas industry Worldwide Specializes in Thermal spray and surface treatment services Houses modern spray technology including HVOF, Plasma and Twin wire arc processes Supporting facilities include CNC machinery, Heat Treatment furnaces, re-chroming provisions and laboratory

3 Rainbow Mechanical and Electrical Works Mud Motors rotors reconditioning works HVOF, tungsten carbide coating on rotor surface Hard chrome plating on rotor surface Joining of two rotors Stub welding Catcher repair Shortening and re-threading

4 Mud Motor Rotors HVOF tungsten carbide coating on Rotors Incoming inspection Stripping of existing coating Pre-polishing MPI (Magnetic particle Inspection) Grit Blasting HVOF spray Polishing Final Inspection and DPT Sealing Package/ handling and QC

5 Incoming inspection Typical damages Surface damage due to salt incursions Pittings due to corrosion Damages due to acid attack Deep pitting Page 5

6 HVOF carbide coating on mud motor rotors Stripping of existing coating Stripping Tank Stripping in progress Page 6

7 HVOF carbide coating on mud motor rotors Pre-polishing Pre-polishing Page 7

8 HVOF carbide coating on mud motor rotors Magnetic Particle Inspection (MPI) Checking for surface defects Page 8

9 HVOF carbide coating on mud motor rotors Grit Blasting Blasting room Blasting to prepare the surface for coating Page 9

10 HVOF carbide coating on mud motor rotors HVOF coating HVOF Tungsten carbide coating on the surface of the rotor Page 10

11 HVOF carbide coating on mud motor rotors Finish Polishing Final Polishing Page 11

12 HVOF carbide coating on mud motor rotors DPT/ Final Inspection Dye Penetrant test to check for coating defects Final Inspection and all dimension checks Page 12

13 HVOF carbide coating on mud motor rotors Ultrasonic test (If required) UT test is carried upon customer request to check for bond integrity Page 13

14 HVOF carbide coating on mud motor rotors Sealing Baking furnace for sealant Indigenous Rainbow sealant is applied to seal the micro-porosity Page 14

15 HVOF carbide coating on mud motor rotors Packing/ Delivery Protection packing Handling and transport Page 15

16 HVOF carbide coating on mud motor rotors QC Package All major and minor dia pre-sizes and final sizes Coating material spec and its conformity NDT reports if required COC Observation Maximum Minimum Observation Maximum Minimum Major dia Minor dia Page 16

17 Mud Motor Rotors Hard chrome plating on Rotors Incoming inspection Stripping of existing coating Pre-polishing MPI (Magnetic particle Inspection) Preparation Chrome plating Buffing/ finish Polishing Final Inspection and QC Package/ handling

18 Hard Chrome plating on mud motor rotors Preparation Involves Fixtures Taping Cleaning Chemical activation Page 18

19 Hard Chrome plating on mud motor rotors Chrome plating Process under progress inside Chrome tank Page 19

20 Hard Chrome plating on mud motor rotors Polishing/buffing Buffing/ Polish finish Page 20

21 Mud Motor Rotors Additional Services Joining of two rotors to make a bigger one Stub welding Catcher repair Shortening and re-threading Page 21

22 Mud Motor Rotors Joining of two rotors Connecting two cut rotors Welding the joint Stress relieving Finish polishing and re-coating

23 Mud Motor Rotors Stub Welding Cutting the damaged part Making new stub and welding to rotor Matching and finish machining

24 Mud Motor Rotors Catcher repairs Machining out damaged bore Manufacturing new sleeve Shrink fitting and welding sleeve onto catcher bore Finish machining to the spec

25 Mud Motor Rotors Shortening and re-threading Machine/ cut the unwanted portion Re-thread the connection Match with chamfer at the top

26 Down hole Tools Repair & Manufacturing (partial) Lower and Upper rotating bearing Bearing mandrel and housings Adjustable bent Housings Mud Screens (manufacturing with coating) Turbine housings Piston Housings Spline Mandrel MMA Housings & Seal Retainers Valve Piston Rhino Bodies Page 26

27 Down hole Tools Reconditioning services include HVOF tungsten carbide coating Ceramic coatings Electro less Nickel plating Sulphamade Nickel chrome plating Chrome plating Weld repairs Heat Treatment Page 27

28 Turbine bearings Lower rotating bearings MMA Housings Bearing Mandrel

29 Mud screens with coating Valve body repair Drill collar repair Adjustable bent housings

30 group subsidiaries Page 30