Under the deal, six gas turbine packages and nine gas turbine core engines will be supplied by the company's UK facility in Lincoln and three Gas Turbine packages from Siemens facility in the US.
Gas turbines have been manufactured in Lincoln for more than 60 years and Siemens is one of the largest local employers with a workforce of around 1,500.
Commenting on the news, Neil Corner, managing director, Siemens Industrial Turbomachinery, said: "This order reinforces Siemens' place as a key partner and major player within the oil and gas industry in South America. We are delighted to have secured this work here in Lincoln and it proves once again that by continuing to invest in our people, facilities and innovation, we have a world-class business that is able to compete and win in the global market place."