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Well testing
Surface well testing onshore and offshore, including high pressure and high temperature wells. Equipment is in H₂S service and the majority of devices are ATEX classified for Zone 2.
Service ref
SVC-01
Service
H₂S · NACE
Area class.
ATEX Zone 2
Deployment
On / offshore
Scope
What the package covers.
- 01Rig-up of the surface test train from wellhead to burner - choke manifold, indirect heater, three-phase test separator, gauge and surge tanks, transfer pump.
- 02High pressure and high temperature well testing, with equipment selected against the well's expected pressures, temperature and fluid analysis.
- 03Confined, smokeless and noiseless gas burner for locations near communities, infrastructure or environmentally sensitive ground.
- 04Sand management through sand filters and separation, protecting downstream equipment and preserving measurement accuracy.
- 05Continuous measurement and data capture on the principal's PLC control system, with reporting through the test programme.
- 06Tubular running services - hydraulic power tongs for casing and tubing, non-marking equipment, pick-up and lay-down machines, casing drivers, thread cleaning and dope application, weight joint compensators.
The same organisation engineers the package, builds it and runs it on location. When a well behaves differently to the prognosis, the change goes back to the workshop rather than into a third-party OEM's queue.
Typical train - reference tags
| Wellhead / X-mas tree | X-100 |
| Choke manifold | CM-110 |
| Indirect heater | H-120 |
| 3-phase test separator | V-130 |
| Surge tank | T-140 |
| Transfer pump | P-150 |
| Smokeless burner | B-160 |
Tags are illustrative. Final numbering follows the project's own equipment register.
Downhole measurement - WSGI
| Gauge type | Quartz / Si-sapphire |
| Max pressure | 16,000 psi |
| Max temperature | 177 °C |
| Pumping | 10,000 psi |
| Slickline units | Double drum, DNV |