DSA
Dognut Sub Adapter
| Upgrades Existing Wellhead to 10K(69 MPa) or 15K (103.5 MPa) WP | A sealed high pressure sub is connected to the dognut |
| Multi Seal Connection | High pressure seals are pressure tested to comfirm their integrity prior to the frac job |
| Unique Venting System | Vent valve preferred to be connected to the annulus casing valve or vented to the atmosphere |
| Annulus Pressure Back Up | Annulus pressure provides back up support for the high pressure sub |
| Dognut Seals Become Dormant | Dognut seal leak will not jeopardize the job |
| Full Bore For Back Pressure Plug Passage | Sub exhibits a full bore to accommodate downhole passage |
| Universal Tubing Hanger Sizes | 7 1/16″ 2K, 3K, and 5K Connects to 2 3/8″, 2 7/8″, 3.5″ and 4.5 tubulars |
| Universal Frachead Connections | 3 1/16″ 10K, 15K 4 1/16″ 10K, 15K |