Non-explosive method for equalizing pressures between tubular strings
Available with an ultra-slim outer diameter of just 2.125”, its innovative design is ideal for extended reach and going beyond narrow ID restrictions.
Welltec Puncher 218 SRO2 truly stands apart from anything else on the market, as the slimmest non-explosive puncher capable of creating multiple perforations on a single run.
Featured case
During plug and abandonment (P&A) preparation offshore Denmark, TotalEnergies wanted to circulate trapped gas from a well by creating multiple perforations in the 4-1/2” casing (28Cr alloy)...
The Welltec Puncher provides an efficient, e-line conveyed, non explosive method for equalizing pressures between tubular strings,establish hydraulic communication between tubing and annulus, and increasing production. Its innovative design quickly creates a controlled diameter hole in the tubular at the target depth for pipe recovery or completion removal without the use of explosives.
Utilizing a fast, drilling technique, the Welltec Puncher produces a precise, uniform hole. The puncher can be run slick to any depth in the well or equipped with a ‘no-go’ for a hole punch at an exact depth. Multiple holes can be drilled in a single descent and it can be deployed independently or with other tools. It can be combined with the Well Tractor® for punching in highly deviated or horizontal wells.
| Applications |
| Pressure equalization |
| Heavy fluids injection |
| Production inflow control |
| Injection flow control |
| Production increase |
| Features |
| Through tubing hole punching |
| Through wired |
| Modular and configurable |
| Compatible with all service providers |
| NACE compliant |
| Surface readout and control* |
| *Dependent upon configuration |
| Benefits |
| No explosives |
| Multiple punches in the same run |
| No perforation burr |
| Combinable with other Welltec services |
| Rigless punch for batch work |
| Accurate depth control |
| Specifications | |
| Length | 20,5 ft → 21 ft* |
| Running OD nominal | 2 1/8" → 3 1/8"* |
| Weight in air | 235 lbs → 385 lbs* |
| Minimum anchor ID | 2.4" → 3.4"* |
| Maximum pipe thickness | 0.51"→ 0.9"* |
| Maximum anchor ID | 5.06" → 9"* |
| Punch hole diameter | 0.3" → 0.5"* |
| Punch extension | 0.43" → 1"* |
| Maximum well pressure | 20,000 psi → 25,000 psi |
| Tensile strength | 30,000 lbs → 42,000 lbs |
| Compressive strength | 36,000 lbs → 50,000 lbs |
| Maximum well temperature | 302 F |
| * | Dependent upon configuration |
Talk to your local expert
At Welltec, our team of specialists is experienced in resolving the unique challenges of well drilling and operations across diverse terrain. Whatever your need, we can help you find a solution.