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Workover Services Suppliers, UAE

Workover Services are the major well repair and reconfiguration operations that require a workover rig to pull the production tubing and completion equipment from an existing well. Workovers are performed to replace failed downhole equipment, change the completion configuration, plug back producing zones, re-perforate new intervals, and perform major remedial cementing. In the GCC, workover rig demand remains high as operators maintain and optimize production from their extensive mature well portfolios.

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Workover services represent the heavy-duty end of well maintenance in Saudi Arabia and the UAE, called upon when the production problem or required modification exceeds the capability of lighter intervention methods such as wireline or coiled tubing. A workover operation involves mobilizing a dedicated workover rig (or the drilling rig, in some cases) to the well, killing the well, pulling the production tubing and completion hardware, performing the required downhole work, running new or repaired completion equipment, and restoring the well to production.

Common workover reasons in GCC fields include ESP or rod pump replacement, tubing integrity failure repair, completion reconfiguration (adding or isolating producing zones), sidetrack drilling from an existing wellbore, sand control installation, and well abandonment. Workover rigs are classified by their pulling and hoisting capacity, typically ranging from 150,000 to 500,000 lbs hookload, and must be equipped with BOP stacks, power tongs, and slip-and-cut equipment for the specific well conditions.

Procurement teams should evaluate workover contractors on rig availability and location within the GCC, rig specifications matching the well's requirements (depth, casing size, pressure), crew experience and safety record, and day rate competitiveness. Both Aramco and ADNOC maintain large dedicated workover rig fleets supplemented by contracted rigs. Workover rig day rates in the GCC range from USD 8,000-20,000 depending on rig size and specification. Planning workover campaigns to batch similar jobs in the same field area reduces mobilization costs. Average workover duration ranges from 5-20 days depending on complexity, so rig scheduling and turnaround efficiency are key performance indicators.

Frequently Asked Questions β€” Workover Services

What types of workover rigs are used in the GCC?
The GCC primarily uses mobile land workover rigs (truck-mounted or trailer-mounted) ranging from 150,000 to 350,000 lbs hookload for onshore wells. Offshore workovers use platform-based workover rigs or self-elevating tender-assist rigs. For deep or high-pressure wells, full-size drilling rigs may be used. Rig selection depends on the well's depth, casing size, and the nature of the planned work.
How long does a typical workover operation take?
Simple workovers (ESP change-out, tubing replacement) take 5-10 days. Complex workovers involving re-cementing, re-perforation, or completion reconfiguration may take 15-30 days. Well kill and clean-up time before and after the workover adds 1-3 days. Efficient workover planning and pre-staging of equipment and materials are key to minimizing rig time and deferred production.
What are the main safety risks during workover operations?
Key risks include well control events during tubing pulling (especially on pressurized wells), dropped objects from the rig mast, personnel injuries during heavy tubular handling, and H2S exposure in sour wells. All workover operations require a detailed job safety analysis, well control barriers per the operator's well control manual, and crew certification in well control and H2S awareness.
How should workover campaigns be planned for cost efficiency?
Group workovers by geographic area and job type to minimize rig moves. Pre-position all required materials (tubing, packers, safety valves) at the wellsite before rig arrival. Use a standardized job procedure template for similar wells to reduce planning time. Track KPIs including rig utilization rate, NPT percentage, and cost per workover to identify improvement opportunities across the campaign.