Casing Hangers

 

Casing hangers may be of the automatically operating type and of the non-automatic type. In addition to holding the casing, they act as primary sealers for the casing. The casing hangers may be attached to the casing.

 

Types

BA type casing hangers

This casing hanger comprises a double system of mandrels (upper mandrel quarters, bottom mandrel quarters) and between them a double system of sealing. Under load the sealing system’s elements are expanded and produce the sealing effect.

BA-K type casing hangers

This casing hanger has outside and inside mandrel quarters and above these a specially shaped sealing element held together by clamping bolts. Upon placement, the clamping bolts shall deform the sealing element, while the inside mandrel quarters are holding the casing string.

BA-R type casing hangers

Here the primary sealing of the casing occurs independently from the mandrel triplets. After hanging in the casing string the sealing effect is being brought about by spanning the bolts in the pressing rings that embrace the sealing element.

BA-TY type casing hangers

The casing’s primary sealing occurs independently from the mandrel triplets. After hanging in the casing string the sealing effect is produced by spanning the screws in the impact disk to press down the upper pressing ring. The impact disk is resting on the split ring, which ring sits in a recess formed in the housing for this purpose.

C-22 type casing hangers

The compressing mandrel system of this casing hanger consists of two parts, the outside mandrel half and the inside mandrel quarter sitting in the tapered inner mantle. The sealing element sits underneath the system of mandrel elements. When the load is applied, the elements of the sealing system become automatically expanded and produce the sealing effect.

DKG VALVE reserves the right to change the Specifications without notice!