DSA Dognut Sub Adapter


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 ConnectionHigh pressure seals are pressure tested to comfirm their integrity prior to the frac job
Unique Venting SystemVent valve preferred to be connected to the annulus casing valve or vented to the atmosphere
Annulus Pressure Back UpAnnulus pressure provides back up support for the high pressure sub
Dognut Seals Become DormantDognut 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 Sizes7 1/16″ 2K, 3K, and 5K
Connects to 2 3/8″, 2 7/8″, 3.5″ and 4.5 tubulars
Universal Frachead Connections3 1/16″ 10K, 15K
4 1/16″ 10K, 15K