News
Cameron Flow Control Technology / SBM Offshore
SBM Offshore is pleased to announce that Esso Exploration and Production Guyana Limited (EEPGL), an affiliate of Exxon Mobil Corporation, has confirmed the award of contracts for the next phase of the Payara development project located in the Stabroek block in Guyana. Under these contracts, SBM Offshore will construct, install, and then lease and operate the Prosperity FPSO for a period of up to two years, after which the FPSO ownership and operation will transfer to EEPGL. Fabrication has recently commenced in Singapore.
One of the critical process control applications aboard the FPSO is that of Triethylene glycol (TEG). TEG is used by the oil and gas industry to “dehydrate” natural gas. It may also be used to dehydrate other gases, including CO2, H2S, and other oxygenated gases.[2] It is necessary to dry natural gas to a certain point, as humidity in natural gas can cause pipelines to freeze, and create other problems for end users of the natural gas. TEG is placed into contact with natural gas and strips the water out of the gas. TEG is heated to a high temperature and put through a condensing system, which removes the water as waste and reclaims the TEG for continuous reuse within the system. The withdrawal of the water-rich glycol from the bottom of the absorber is facilitated by a level control, and high- and low-level shutdown can be applied to the reboiler, surge tank and flash separator. When looking for a robust, reliable level measurement instrument, Cameron, acting on behalf of SBM Offshore, consulted ABLE Instruments. ABLE recommended Magnetrol’s industry proven AtlasTM Magnetic Level Indicator, providing both visual indication and a transmitter generated 4-20mA control signal (HART). The Prosperity FPSO will utilize a design that largely replicates the design of the Liza Unity FPSO. The FPSO will be designed to produce 220,000 barrels of oil per day, will have associated gas treatment capacity of 400 million cubic feet per day and water injection capacity of 250,000 barrels per day.