Task
A gas condensate well with high H₂S content experienced severe liquid loading and insufficient wellhead pressure, preventing the well from flowing naturally. Conventional well unloading methods such as coiled-tubing nitrogen lift required complex mobilisation, significant operational time and high intervention costs. The operator required a faster and safer solution to:
- Remove accumulated liquids from the wellbore
- Restore stable production
- Minimise operational footprint and cost
- Avoid complex downhole intervention
Solution
ABSS deployed the BoostFlow multiphase pumping system, a surface-based solution designed to reduce wellhead back-pressure and transfer multiphase fluids directly from the well to downstream facilities. The unit was mobilised and rigged up within a day and installed at surface with minimal infrastructure requirements. Key features of the deployment included:
- Surface multiphase pumping through gas volume fractions of up to 100%
- Reduction of wellhead pressure to re-establish flow conditions
- Continuous transfer of produced fluids into the high-pressure flowline
- Compact and fast deployment suitable for intervention-free operations
Result
BoostFlow performed well unloading in approximately 12 hours. After the unloading phase, the pump was bypassed to evaluate the well’s ability to flow naturally. The deployment reactivated the well and restored production without the need for conventional intervention methods:
- Successful unloading of the liquid-loaded gas condensate well
- Rapid restoration of stable production: 4.5 MMscf/d of gas and 1,800 bbl/d of condensate
- Significant reduction in operational time compared to coiled-tubing nitrogen lift
- Reduced operational complexity and manpower requirements
- Lower overall operational cost
The operation demonstrated the effectiveness of surface multiphase boosting as a practical alternative to traditional well unloading techniques.
BoostFlow™ Multiphase Pumping System
An advanced multiphase pumping solution designed to restore and enhance production from low-pressure, liquid-loaded, or shut-in wells by reducing wellhead and manifold back-pressure, and to significantly reduce the need for flaring during well testing.
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