Mechanical Firing Head | Pressure Activated Firing Head | Mechanical Shift-Up Tubing Release | Mechanical Shift-down Tubing Release | Full-Bore Mechanical Shift-up Tubing Release | Kobe (Pressure Release) Sub | Fill/ Flow Sub | Fill/ Flow Sub with Integrated No-Go | R.A. Marker Sub | Differential Pressure Sub | Drop Bar | Roller Drop Bar | High Bypass Insert Style No-Go | Insert Style No-Go | Safety Firing Head No-Go | Safety Spanner
 DIFFERENTIAL PRESSURE SUB
| Product Series: |
TCP DP 1000 *** |
| |
TCP DN 1000 *** |
LRI Perforating Systems Inc. offers a ported and non-ported differential pressure sub for TCP applications. The LRI differential pressure sub maintains pressure differential, in favor of the annulus, between the production tubing and the annulus. Typically used overbalanced perforating situations, the sub creates a underbalanced well condition during perforation.
The drop bar, used to activate the mechanical firing head, will contact and shatter the ceramic dome immediately prior to striking the firing pin and in turn detonating the gun(s). With the pressure barrier broken, annular fluid pressure combined with formation pressure causes a surge into and up the tubing string. This action serves to clean out the perforation tunnels and aids the flow of hydrocarbons into the well.
The ported model is typically used if the differential sub is to be located below a packer, while the non-ported model may be selected for use either above or below a packer.
Features:
- Additional face seal between ceramic dome and top part of sub provides superior seal assurance.
- Incorporates a Teflon seal ring in the female EUE threads to improve seal reliability.
- Large slotted windows on ported model provide maximum possible flow area.
- Ceramic dome can withstand 10,000 PSI on the convex side.
Specifications
| |
2
3/8" |
2
7/8" |
Overall
length |
12.085" |
307 mm |
12.52" |
318 mm |
OD |
3.063" |
78 mm |
3.668" |
93 mm |
Minimum
ID |
1.995" |
50.7 mm |
2.441" |
62 mm |
Temperture
Rating |
204°C with standard viton seal. |
Pressure
Rating |
10 000 psi /
689 476 kPa from convex side of dome |
Tensile
Strength |
143 000 # |
188 000 # |
Connections |
2 3/8 ” pin X box |
2 7/8 ” pin X box |
Material |
4140 HTSR |
Download Product Spec Sheet (PDF)
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