RN Lock Mandrel
FUNCTIONALITY
Intervention
Production Optimisation
Flow Control
P&ADEPLOYMENT
SECTORS
The DTIRN Lock Mandrel is sized by the internal seal bore of the corresponding bottom no-go RN landing nipple that it locates and locks into.
DTIXN & DTIRN Lock Mandrels enable the positive landing and locking of subsurface flow control equipment into their matching tubing ‘no go’ nipple profiles. They are able to hold tubing pressure from either above or below.
The DTIRN Locks typically have a higher pressure rating that the similar DTIXN Lock and are typically used in heavy weight tubing applications. The higher pressure rating is obtained by thicker wall sections in the tool leading to a smaller inside diameter and by the double shoulder on the locking key which doubles the bearing contact area of the keys with the landing nipple.
Landing and setting the lock in the landing nipple is controlled by the R-Line Running Tool.
DTIRN Lock Mandrels are factory tested in accordance with API 14L and are available in a number of materials meeting most well conditions. Individual technical data sheets are available upon request.
Features and Benefits
- Locates on no-go of corresponding RN landing nipple.
- Double shoulder on keys for higher working pressure.
- Can be supplied in any material to suit application.
- Suitable for bi-directional sealing.
- A device can be screwed into the bottom thread to change it to a plug, injection valve, standing valve or hanger.
Applications
Can be used for pressure testing completion strings or isolating sections of tubing.
| Part Number | Lock Size | Outside Diameter | Inside Diameter | Bottom Thread Connection |
|---|---|---|---|---|
| 150DTIRN** | 1.500" | 1.480" | 0.620" | 1 1/8-16 UN |
| 171DTIRN** | 1.710" | 1.690" | 0.750" | 1 1/8-16 UN |
| 178DTIRN** | 1.781" | 1.760" | 0.880" | 1 3/8-14 UN |
| 218DTIRN** | 2.188" | 2.170" | 1.120" | 1 3/4-12 UN |
| 231DTIRN** | 2.313" | 2.290" | 1.120" | 1 3/4-12 UN |
| 256DTIRN** | 2.562" | 2.550" | 1.380" | 2-12 SLB |
| 275DTIRN** | 2.750" | 2.740" | 1.500" | 2 1/4-12 SLB |
| 312DTIRN** | 3.125" | 3.110" | 1.940" | 2 5/8-12 SLB |
| 344DRIRN** | 3.437" | 3.410" | 1.940" | 2 3/4-12 SLB |
| 369DTIRN** | 3.688" | 3.660" | 2.380" | 3 1/16-12 SLB |
