TCO

Tengizchevroil

Partner Information

Tengiz oil field, located on the west part of Kazakhstan, was discovered in 1979. In April 1993, the Tengizchevroil Joint Venture (TCO) was created, the initial founding partners of which were the government of the Republic of Kazakhstan and Chevron Corporation. Today, TCO partners are Chevron (50%), JSC NC Kaz-MunaiGas (20%), ExxonMobil Kazakhstan Ventures Inc. (25%) and LukArco (5%).

The license area of 2,500 km2 (1,600 miles2) includes the Tengiz field and the smaller, but larger reserves, Royal field. Recoverable reserves are estimated at between 890 million and 1.37 billion tons of oil (from 7.1 to 10.9 billion barrels). Estimated reserves in the Tengiz reservoir are 3.2 billion tons (25.5 billion barrels). The reserves of the Royal field belonging to world-class fields are estimated at 200 million tons (1.5 billion barrels).

Tengiz field is the deepest giant oil field in the world, the top of the oil reservoir of which lies at a depth of about 4,000 m (13,000 ft). The width of the Tengiz reservoir is 20 km (12 miles), and the length is 21 km (13 miles), the thickness of the oil reservoir is 1 mile.

Future Expansion Project (FGP) and Wellhead Pressure Management Project (WPMP) are two integrated projects implemented by Tengizchevroil LLP at the same time. Implementation of the FGP will allow increasing the volume of oil production at Tengiz field by approximately 12 million tons per year or 260 thousand barrels per day, and as a result will be about 39 million tons per year or 850 thousand barrels per day. The implementation of FGP is aimed at expanding production capacities, and the WPMP will ensure full utilization of the processing capacities of the plants operating in Tengiz by reducing wellhead pressure and increasing pressure on six existing integrated production lines.

 

Information on Partnership between NCOC N.V. and West Dala LLP

TCO is exploring opportunities to maintain the level of waste recycling at 61% achieved in 2018, and is making significant efforts to develop the local market for waste management services. TCO sends more than 25 types of solid waste for recycling and implements environmental projects, such as collecting and recycling paper and plastic bottles by third parties for recycling, thereby helping to establish the waste management industry in Kazakhstan.

West Dala has been working with TCO since 2012, providing waste management services for industrial and consumer wastes. Partnership is currently underpinned by a Master Service Agreement which signifies West Dalais one of the leading professional waste management companies able to provide highly professional services and to offer technological solutions for requests of increased complexity. West Dala is always invited to participate in TCO tenders and is regularly audited to confirm a full compliance with the requirements of the laws of the Republic of Kazakhstan and Chevron Corporation. Since 2019 West Dala has been providing waste management services also for the TCO’sFuture Growth Project (FGP / WPMP).

To implement waste management projects in Tengiz, in 2019 West Dala built and commissioned its Tengiz Waste Handling Facility, purchased specialized vehicles, container infrastructure, and also continues the construction of the second waste management facility inProrva, which will use the new available technologies for waste treatment and recycling. Thanks to these projects, West Dala was able to provide jobs for residents of almost all the regions of Kazakhstan. The company provides services not only to TCO, but also to TCO contractors in Tengiz. Thus, the fruitful cooperation of TCO and West Dala contributes to the improvement of the waste management system in general at Tengiz field.

TCO annually conducts a CHESM audit (audit of the health, safety and environmental management system) of all its contractors. West Dala is always striving to maintain and improve its CHESM performance, as evidenced by the current “A” grade based on the audit results for 2019.