Overview
Wellhead and Christmas tree equipment must hold pressure reliably for years. Mersal Group services the full range of surface wellhead equipment, from casing and tubing heads to gate valves and chokes.
We restore sealing surfaces, replace worn internals and pressure-test every assembly before it returns to the field, helping operators avoid leaks and unplanned shutdowns.
Scope of work
Wellheads
Inspection and repair of casing heads, casing spools and tubing heads.
Christmas trees
Complete overhaul of tree assemblies, including flanges, adapters and tree caps.
Gate valves
Disassembly, seat and gate replacement, re-lapping and testing of manual and actuated valves.
Chokes
Repair of adjustable and positive chokes, including bean and seat replacement.
Ring grooves & seal areas
Weld overlay and re-machining of damaged ring grooves and sealing surfaces.
Standards & deliverables
Reference standards
API 6A, API 6AR
Equipment covered
Wellheads, Christmas trees, gate valves, chokes
Testing
Hydrostatic body and seat tests
Documentation
Inspection report, test charts, certificate of conformance
How we work
Receiving & incoming inspection
Each item is logged, cleaned and photographed on arrival. We review its service history, previous certificates and the scope agreed with you.
Disassembly & assessment
Full strip-down followed by visual, dimensional and NDT inspection to locate wear, cracks, erosion and corrosion. You receive a findings report with the recommended work.
Repair & replacement
After your approval we carry out machining, weld repair or part replacement using traceable materials and OEM-equivalent spares.
Assembly & testing
Components are reassembled to the manufacturer's fits and torque values, then function and pressure tested.
Documentation & delivery
Equipment is returned with inspection reports, test charts and a certificate of conformance, ready to go back into service.