Compact offshore gas/liquid separation system
The development of the marginal Halfweg gas field required the design of a low-cost, low-weight gas process and compression module capable of handling significant slugs from the remote Halfweg satellite. This has been achieved through a unique combination of existing technology. A simple finger-type first-stage separator was installed upstream of a compact cyclone separator. The development plan integrated the use of the facilities of the existing Hoorn oilfield platform with a new remote-satellite platform. Wet gas is transported by pipeline form the Halfweg satellite to the Hoorn platform. Methanol flows by pipeline from Hoorn to Halfweg and is injected in the gas stream to prevent hydrate formation in the pipeline and manifolds. The finger-type separator was chosen because of its low cost, light weight, and negligible plot-space requirements. Cyclone separators were chosen for second-stage gas/liquid separation; as scrubbers upstream of each of the two compressor stages; and for third-stage (high-pressure) gas/liquid separation upstream of the glycol contactor.
- OSTI ID:
- 465168
- Journal Information:
- JPT, Journal of Petroleum Technology, Vol. 49, Issue 4; Other Information: PBD: Apr 1997
- Country of Publication:
- United States
- Language:
- English
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