ExxonMobil Guyana’s proposed Haimara development offshore Guyana would use a newly built floating production, storage and offloading vessel designed to process up to 1.5 billion cubic feet of produced natural gas per day (bcf/d).
The details are contained in the company’s project summary for the Haimara development, which has not yet been approved.
The project is planned for the Stabroek Block, about 222 kilometers offshore Guyana. The FPSO would be positioned about 54 kilometers southeast of the current location of the ONE GUYANA FPSO and 36 kilometers from the planned location of the Longtail FPSO.
The project summary said the proposed FPSO would be “a newly built floating facility with double side and single bottom protection.”
The vessel would be about 1,096 feet (334 meters) long, 197 feet (60 meters) wide, and 108 feet (32.8 meters) deep. It would be moored at the Haimara location, with a mooring system designed to keep the FPSO on station continuously for the 30-year duration of the project.
The FPSO is expected to produce between 1-1.5 bcf/d of produced natural gas. It is also expected to separate between 160,000 and 220,000 barrels per day (b/d) of condensate from the produced gas.
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Condensate is a light liquid hydrocarbon that can be separated from gas during production. At Haimara, the condensate would be stored in the FPSO’s hull before export.
The project summary said the FPSO would have a condensate storage capacity of about two million barrels in cargo tanks within its hull.
“Condensate will be stored in the FPSO tanks prior to export to global markets via conventional tankers owned/operated by third parties,” the document said.
During production operations, the FPSO may offload condensate to conventional tankers about every three to five days. The summary said this would be done by direct tandem offloading.
The conventional tanker would be held in position with support from station keeping tugs. The summary said this would help maintain a safe separation distance from the FPSO.
Haimara is proposed as a gas-focused development in the Stabroek Block. ExxonMobil Guyana has said the development would target retrograde gas, with condensate separated on the FPSO and the remaining gas reinjected into the reservoir for pressure maintenance and increased condensate recovery.
Haimara would be the ninth hydrocarbon development in the Stabroek Block. ExxonMobil operates the block with a 45% stake, and its co-venturers are Hess (30%, owned by Chevron) and CNOOC (25%).
