Truck-Mounted Workover Rig Configuration

Working condition profile

Mature onshore oilfield intervention programs demand well service units that self-mobilize between wellheads on field roads, rig up quickly, and cover a 7000 m working-depth envelope on 73 mm drill pipe. Mixed-age fleets from several manufacturers cause non-interchangeable spares, rising downtime, and hook loads that no longer match deeper intervention wells and heavy completion strings. A fixed land rig is too slow to move between pad locations, so truck mobility and fast rig-up are core requirements. Operating range must span cold winter starts and hot summer runs, and structural and hoisting documentation should meet API referenced practice to support buyer audits.

Equipment selection

For standard intervention wells, the configuration uses the truck-mounted workover rig XJ1000, with a nominal working depth of 7000 m on 73 mm drill pipe, a 3150 kN maximum static hook load, a 1000 HP rated lifting power, and a super-heavy vertical folding hydraulic-lifting derrick. It travels on roads at up to 75 km/h and is rated for -40 C to +55 C ambient operation, built to API 4F, API 7K, and ISO 9001 referenced practice.

For heavier completion and workover jobs, the configuration adds the truck-mounted workover rig XJ1350, also rated to 7000 m but with a 4000 kN maximum static hook load and 1350 HP lifting power, using an ultra-heavy vertical folding derrick and up to 70 km/h road speed. Standardizing on the same truck-mounted workover platform keeps crews, controls, and spare parts common across the fleet. The model range is listed under workover rigs.

Configuration & key specifications

Key specifications below are verified against published product data for the two rig models.

Delivery & field capability

Each truck-mounted workover rig drives itself between wellheads and raises its folding derrick hydraulically on site, cutting mobilization time versus towed units. Common controls and spares simplify crew training and maintenance, and the 4000 kN hook load of the XJ1350 provides margin for stuck tubing pulls and heavy completion strings. API referenced documentation supports the buyer's own quality audits, and the two-model split lets work be scheduled by well weight rather than availability of whatever unit happens to run.