Dresser-Rand delivers offshore combined cycle

Dresser-Rand, specialist in mission-critical, high-speed rotating equipment for the oil and gas business, now part of Siemens, reports delivery of equipment for a combined cycle power plant to be deployed on the Shell Appomattox deep-water oil and gas floating production platform.

The platform will be located 80 miles off the coast of Louisiana in the Gulf of Mexico and is slated to start production around the end of this decade. The ~150 MW combined cycle unit will feature four 27 MW gas turbine-driven generator sets equipped with heat recovery systems and a 40 MW steam turbine generator.

The gas turbine gensets are described as self-contained mini-modules, complete with all electrical wiring, piping, tubing and controls. The genset, ancillary equipment and baseplate remain connected after unit testing, substantially reducing the time required to install, commission and start-up the packages.

“Combined cycle power plants built for offshore applications are rare”, said Jesus Pacheco, executive VP new equipment worldwide, Dresser-Rand. The package features a particularly compact design with minimum weight to accommodate the constraints of the platform. The design allows easy access for maintenance and service.

The steam turbine generator package was manufactured in Wellsville, NY and packaged in Olean, NY. An 18.5 MW load test was performed on the steam turbine generator set using the steam-producing capability at the Olean facility. The gas turbine generator packages were designed in Kongsberg, Norway.