Spring Jar
The DTI Spring Jar impacts upwards using a mechanical latch spring system. The mechanism allows a pre-determined firing load to be set by the wireline operator prior to running the Jar and the firing load can be configured without removing the Jar from the toolstring. Once the firing load is reached the Mandrel moves rapidly upwards until stopping suddenly at the upper end of the Jar body generating a large impact force.
Design improvements to the DTI Spring Jar Latch Keys and Latch Sub prolong the life of the parts and minimise spare part requirements over the life of the tool.
The DTI Spring Jar is available dressed for H2S and with alternative Spring configurations for heavy duty pull loads or light duty pull loads, for use with Wireline Tractors for example. A Calibration Sub is available to confirm the firing load prior to running the Jar.
- Field proven latch mechanism
- Reversible latch keys for long life
- Simple redress
- Firing load can be adjusted on or off the tool string
- Calibrated window ensures accurate adjustment
- Easy re-cocking action
- Avaliable with quick connects
- Can be dressed for H2S
DTI offer alternate sizes, materials and thread connections. Please contact us for more information.
Part Number | Fish Neck | Outside Diameter | Standard Connection | Stroke | Firing Load (LBS) | Other |
---|---|---|---|---|---|---|
150SJAR | 1.375" | 1.50" | 15/16 UN | 6.00" | 450 - 950 | Heavy Duty Firing Load: 800 - 2000LBS |
175SJAR | 1.750" | 1.75" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
188SJAR | 1.750" | 1.875" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
212SJAR | 1.750" | 2.125" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
250SJAR | 2.313" | 2.50" | 1 9/16 UN | 6.00" | 700 - 1700 | Heavy Duty Firing Load: 2000 - 5000LBS |
Spring Jar
The DTI Spring Jar impacts upwards using a mechanical latch spring system. The mechanism allows a pre-determined firing load to be set by the wireline operator prior to running the Jar and the firing load can be configured without removing the Jar from the toolstring. Once the firing load is reached the Mandrel moves rapidly upwards until stopping suddenly at the upper end of the Jar body generating a large impact force.
Design improvements to the DTI Spring Jar Latch Keys and Latch Sub prolong the life of the parts and minimise spare part requirements over the life of the tool.
The DTI Spring Jar is available dressed for H2S and with alternative Spring configurations for heavy duty pull loads or light duty pull loads, for use with Wireline Tractors for example. A Calibration Sub is available to confirm the firing load prior to running the Jar.
Features and Benefits
- Field proven latch mechanism
- Reversible latch keys for long life
- Simple redress
- Firing load can be adjusted on or off the tool string
- Calibrated window ensures accurate adjustment
- Easy re-cocking action
- Avaliable with quick connects
- Can be dressed for H2S
Data Table
Part Number | Fish Neck | Outside Diameter | Standard Connection | Stroke | Firing Load (LBS) | Other |
---|---|---|---|---|---|---|
150SJAR | 1.375" | 1.50" | 15/16 UN | 6.00" | 450 - 950 | Heavy Duty Firing Load: 800 - 2000LBS |
175SJAR | 1.750" | 1.75" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
188SJAR | 1.750" | 1.875" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
212SJAR | 1.750" | 2.125" | 1 1/16 UN | 6.00" | 650 - 1300 | Heavy Duty Firing Load: 1000 - 3500LBS |
250SJAR | 2.313" | 2.50" | 1 9/16 UN | 6.00" | 700 - 1700 | Heavy Duty Firing Load: 2000 - 5000LBS |
Product Customisation
DTI offer alternate sizes, materials and thread connections. Please contact us for more information.