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Gas Separation Complex (GSC) at the Tengiz Oil Field

Project Description:

This project involves the construction of a Gas Separation Complex (GSC) near the Tengiz oil field — Kazakhstan’s largest oil asset. The facility will extract ethane and propane from dry gas sourced from the Tengiz field, operated by Tengizchevroil (TCO). The extracted ethane will be used as feedstock for a planned 1.25 million tonnes per year polyethylene production facility. This marks the first stage of Kazakhstan’s strategy to monetize growing volumes of associated gas from its major oilfields and support its downstream petrochemical development.

Current Status:

  • EPC (Engineering, Procurement, Construction) contract signed with a consortium led by an Italian company (name undisclosed).

  • Gas supply agreement signed between KMG PetroChem and Tengizchevroil.

  • Construction is in preparation phase with commissioning scheduled for 2029

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Start Date: 2025

End Date: 2029

Investment Volume (in mln USD):

Approx. $7.4 billion

Location:

Atyrau Region, Kazakhstan, approximately 1 km from the existing Tengiz oil and gas processing infrastructure and about 35 km from Atyrau city.

Involved Companies:

KazMunayGas

  • Role: Parent company of KMG PetroChem LLP — provides strategic oversight, financial backing, and coordination at the national level for the GSC project.

  • Address: 8, D. Kunaeva Street, Esil District, Astana, 010000, Kazakhstan

Office Contact:

  • Phone: +7 (7172) 78 62 66 (For English speakers)

  • Phone: +7 (7172) 78 63 90 (Head Office)

  • Phone: +7 (7172) 78 61 01 (Reception) 

  • Phone: +7 (7172) 78 61 80 (Procurement) 

  • Email: Astana@kmg.kz

  • Website: www.kmg.kz 

  • WhatsApp: 8 771 191 88 16

KMG PetroChem LLP

Chevron

  • Role: 50% Shareholder of Tengizchevroil; indirectly involved in dry gas supply through TCO

  • Address: 1400 Smith Street Houston, TX 77002, USA

  • Phone: +1 832.854.1000 / Kazakhstan Phone: +7 727 298 0662

  • Web: https://www.chevron.com/

  • LinkedIn

Tengizchevroil LLP (TCO)

UOP (Honeywell)

  • Role: Process Licensor and Technology Provider – supplies licensed gas separation technologies (ethane and propane extraction) and basic engineering design.

  • Address: 50 E Algonquin Rd, Des Plaines, IL 60017-5016, USA

  • Phone: +1 (847) 391-2000

  • Email: info@uop.com

  • Web: www.uop.com

  • LinkedIn

Key People and Contact Details:

1. KMG PetroChem LLP


2. Chevron


3. Tengizchevroil LLP

4. UOP (Honeywell)

  • Name: J. Mark Houdek

  • Position: Director

  • LinkedIn


  • Name: Julian Vickers

  • Position: Senior Director Business Development

  • LinkedIn

Other Important Details:

  • The GSC is designed to process up to 9.1 billion cubic meters of dry gas per year.

  • It will extract up to 1.6 million tonnes of ethane and 360,000 tonnes of propane annually.

  • UOP (a Honeywell company) is the licensed technology provider for ethane and propane separation units.

  • The project is expected to create about 1,600 jobs during construction and around 400 permanent jobs during operation.

Sources:

Photo Source: www.kmg.kz



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