Consulting company Worley INTECSEA, in partnership with the Center for Oil and Gas Technologies (CNT), finances the testing of a prototype of its pseudo-dry gas liquid removal system (PDG).

This innovative technology has been developed for underwater connections over long distances, which are usually not economically or technically feasible and commercially viable. By reducing backpressure in the pipeline, the technology eliminates the need for overhead and costly compression, reducing the associated high carbon emissions.

The prototype testing is based on a feasibility study, also funded through CNT and recently completed in March 2019. The study has already demonstrated unprecedented levels of system recovery, providing an additional income of $ 10 billion compared with alternatives - which led to the strongest economic indicators for the well-known gas basin in the north of the Shetland Islands. The study also demonstrated that upstream CO2 emissions were reduced by 65-80%, which significantly reduces the environmental impact.

An additional application for the PDG, which was studied, was the removal of gas for the development of small oil deposits. It also provides a separate business case with significant advantages for “unmanned” installations.

The results of both of these studies have contributed to the development of technology thanks to the wider support of the industry, including a large-scale prototype of a six-inch liquid removal device that will be tested for six months at the facilities of the Cranfield University. It will mimic the expected flow conditions typically found in a gas / gas condensate subsea feedback system to demonstrate the efficiency of fluid removal and, therefore, provide confidence in providing macro flow.

Lee Thomas, PDG’s lead engineer for INTECSEA, expects the prototype testing to raise the level of technology availability to such an extent that the pilot project can be considered viable using the Extended Factory Acceptance Testing Program for the integrated device.

Based on oilandgastechnology.net

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