Downhole Jetting Tool (DJT)
The Well Cleaner Downhole Jetting Tool (DJT) is an efficient, e-line conveyed, surface controlled method for jetting fluid downhole.
The Well Cleaner DJT can quickly create a large diameter hole in hydrate or wax plugs. Carrying fluids downhole, it can potentially remove scale bridges using organic acids. Alternatively, it can also be used as a fluid sampling tool and in conjunction with a Well Tractor® it can operate in horizontal or highly deviated wells.
Featured case
A client in Norway had a well with no injectivity or productivity (a dead well), after only producing ~1/2 well volume following a re-completion. It was suspected that the well and its screens had been filled up and clogged by particles from the completion fluid that was initially placed inside and outside the screens.
The Well Cleaner Downhole Jetting tool (DJT) is an efficient, e-line conveyed, surface controlled method for jetting fluid downhole. Its innovative design can quickly create a large diameter hole in hydrate or wax plugs.
Carrying fluids downhole, it can potentially remove scale bridges using organic acids. Alternatively, it can also be used as a fluid sampling tool and in conjunction with a Well Tractor it can operate in horizontal or highly deviated wells.
| Applications |
| Eliminate hydrate plugs |
| Remove scale using organic acids |
| Dissolve wax using organic solvents |
| Fluid sampling |
| Features |
| Organic acid resistant |
| Configurable nozzle |
| Modular |
| Universal |
| NACE compliant |
| Benefits |
| No bullheading |
| Quickly restores production |
| Pinpoint fluid delivery |
| ‘Lubricator friendly’ fluids |
| Operates on any e-line via DC |
| Specifications* | |
| Length (with 6 x bailers)* | 44.7 ft* |
| Running OD nominal | 3 1/8" |
| Weight in air (with 6 x bailers)* | 523 lbs |
| Completion ID range | 3.5” – 9” |
| Single bailer volume | 1.85 gal |
| Displacement time (six bailers) | 60 sec |
| Maximum well pressure | 25,000 psi |
| Maximum well temperature* | 338° F* |
| Tensile strength | 32,000 lbs |
| Compressive strength | 50,000 lbs |
| * | 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.