Published: 01/09/2020
Published: 01/09/2020
Limited capacity of scrubber vessels designed for 1995 field performance, inability of scrubbers to accommodate higher flow, and low separation efficiency.
The k-value through the vane pack was as high as 2.31 ft/s, small size of installed scrubber vessels (40- to 60-in ID) limited the options for retrofitting, and the platform did not have room for larger vessels.
Improve flow distribution by replacing scrubber inlet devices with CONSEPT IVD diffusers; maximize separation efficiency by replacing conventional vane packs with CONSEPT DC cyclones.
Performance verification trader tests measured scrubber efficiency at 99.3% with liquid carryover well below 0.1 galUS/MMscf, achieving NORSOK requirements.
Before Equinor doubled the gas production from the Troll Field in 2010, the platform’s scrubber vessels were upgraded with CONSEPT IVD separator inlet vane diffusers and CONSEPT DC demisting cyclones to accommodate the increased flow.
