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Chevron achieves full production from Tengiz expansion projects

Posted on 28 September 2008

The sour gas injection (SGI) operations and the crude processing portion of the second-generation plant (SGP) have been successfully in service for several months while the natural gas and sulfur processing portions of SGP were being completed and commissioned. SGP’s full facilities now stabilize and sweeten crude oil, as well as separate and process natural gas into gas products and elemental sulfur. SGI reinjects one-third of produced sour gas into the reservoir at very high pressures to help preserve reservoir pressure.

“The success of this expansion is a testament to Chevron’s long-term, successful partnership with the Republic of Kazakhstan. Chevron is committed to continuing our investment in the people, economy and energy infrastructure of Kazakhstan,” said Guy Hollingsworth, president of Chevron Europe, Eurasia and Middle East Exploration and Production. “The scale of this project is incredible. SGP is the largest single-train sour gas and crude processing unit in the world, and SGI is now returning sour gas to the reservoir at the highest concentrations of hydrogen sulfide and highest pressures ever accomplished.”

Chevron has a 50% interest in Tengizchevroil. Other partners are KazMunaiGas, 20%; ExxonMobil Kazakhstan Ventures, 25%; and LUKArco, 5%.

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