📍 Yanbu, Madinah Province
Land Workover Rig Inspection & Certification in Yanbu
A land workover rig is a mobile hoisting unit with a telescoping mast or derrick, drawworks and engine that services existing oil and gas wells by pulling tubing and rods, running downhole tools and carrying out repairs. It is a staple of Saudi Arabia's onshore oilfields, where operators and contractors working under Saudi Aramco General Instructions typically require documented inspection of the mast, hoisting system and well-control interfaces. Because the mast and drawworks lift heavy strings over live wells, independent inspection and certification are central to the rig's acceptance for work. Yanbu Industrial City is a major petrochemical and refining centre on the Red Sea.
Land Workover Rig inspection in Yanbu: local context
Heavy process units, storage tanks and marine structures on coastal ground often need piled or other deep foundations, and groundwater can sit close to the surface near the shore. Piling rigs, pile hammers and HDD rigs also serve pipeline and utility crossings. EES inspects piling and drilling rigs on site in Yanbu, checking masts, leaders, hammers and wire rope, so deep-foundation work can start with documented inspection.
Land Workover Rig inspection scope in Yanbu
- ✓Mast or derrick sections, welds, bolted joints, raising cylinders, mast-foot pins, guy lines and anchors, examined in line with the inspection categories of API RP 4G
- ✓Drawworks drum, brake bands or discs, clutch, chain drives and the auxiliary brake
- ✓Crown block, travelling block, hook and elevator links, sheave grooves and bearings
- ✓Hoisting line condition for broken wires and diameter reduction, with slip-and-cut records
- ✓Deadline anchor, hook-load (weight) indicator and the calibration status of its load cell or gauge
- ✓Rig floor equipment: tongs, slips, elevators, power swivel where fitted, and floor guarding
- ✓Well-control interface: BOP control unit operation and hose condition, where part of the rig package
- ✓Engine, transmission, carrier or substructure, levelling jacks, and engine shutdown and spark arrestor arrangements for hazardous-area work
Defects commonly found
- ✓Worn brake bands, scored brake rims or a seized auxiliary brake that reduces holding capacity on the drawworks
- ✓Cracked welds or bent members in the mast, especially at telescoping joints and the mast-foot connection
- ✓A hook-load indicator that is out of calibration or defective
- ✓Hoisting line beyond discard criteria, or no slip-and-cut records
- ✓Missing guarding, a defective engine emergency shutdown or deficient fire protection
Standards
- ✓API Spec 4F (Drilling and Well Servicing Structures)
- ✓API RP 4G (Maintenance, Inspection and Use of Drilling and Well Servicing Structures)
- ✓API RP 9B (Application, Care and Use of Wire Rope for Oil Field Service)
- ✓Saudi Aramco General Instructions (GI), where applicable
Testing
A static hook-load test is typically performed with the mast or derrick loaded to the rated hook load or a percentage set by the standard and the operator, commonly in the range of 100%-125% depending on the standard and client, alongside drawworks brake holding and hook-load indicator verification.
Frequency
Typically at least annually, with a full structural and hoisting-system inspection before mobilisation and after any overload event, major repair or relocation, and more frequent checks where operator rules require.
Who we support in Yanbu
Local focus areas: Yanbu Industrial City and Yanbu Commercial Port.
FAQs
Can you inspect a land workover rig on site in Yanbu?＋
Yes. Our inspectors travel to your yard or project site in Yanbu, including Yanbu Industrial City and Yanbu Commercial Port, so the equipment does not need to be moved.
Which industries in Yanbu request land workover rig inspection?＋
Typically operators and contractors in the Madinah Province from these sectors: Vision 2030 Mega-Projects; Oil, Gas & Petrochemical; Ports, Logistics & Warehousing.
What standards apply to a land workover rig inspection?＋
The mast and derrick are commonly assessed against API Spec 4F and API RP 4G, with wire rope checked to API RP 9B, plus Saudi Aramco General Instructions where the operator requires them. The operator's own requirements take precedence.
How often must a workover rig mast be inspected?＋
API RP 4G sets inspection categories with different frequencies, and in practice many operators call for at least an annual inspection plus checks after an overload or major repair. Confirm the interval in the client's contract.