The company has launched new Condensate Stabilisation Unit (CSU) to treat liquid hydrocarbons for transportation at the Novy Urengoy Branch of the Condensate Treatment Plant in the Yamalo-Nenets Autonomous Area.
The project has been executed based on the ЕРС approach by Peton Technology Engineering Holding specialising in large-scale turnkey oil and gas projects.
As part of integrated approach, PETON updated the design and estimate documentation; supplied equipment and materials; completed a package of construction, installation, commissioning, and start-up works.
Novy Urengoy Condensate Treatment Plant is the leading treatment enterprise for the condensate produced in the Yamalo-Nenets Autonomous Area. Its feedstock is supported by gas condensate and oil / gas condensate deposits in the Nadym-Pur-Tazovsky region. The Achim deposits are of particular significance. They have an impressive potential from the standpoint of increasing the output of liquid hydrocarbons in this region. The condensate produced in the Achim deposits is shipped to the Novy Urengoy Condensate Treatment Plant for further stabilisation. Capacity and specification of the existing plant’s workflow process did not allow increasing the amount of heavy condensate received from new fields. To do so, it was necessary to create a new production facility – a condensate stabilisation unit to prepare unstable condensate for transportation to the Nadym-Pur-Pe oil / gas condensate pipeline by means deethanisation and stabilisation.
The unit stands out for the fact that in terms of its technical specifications, it represents a separate plant erected “from scratch” together with all utilities, essential systems, and linear transport facilities.
The experience with turnkey projects for fuel and energy companies allowed PETON specialists to minimise project risks:
- by creating a unified Centre of Competence and Construction Supervision;
- by mitigation operational and industrial safety risks;
- by optimising the schedule to ensure project execution within the customer’s timeline.
PETON implements every project by using advanced technologies with their impressive efficiency proven on multiple cases.
PETON’s technical solution stands out for a unique process configuration including two columns and three furnaces; as a result, the CSU has multiple operating modes, obtains flexibility in redistributing of the condensate fractions aimed to increase the yield of the product to be used as feedstock for Surgut Condensate Stabilisation Plant or as a component of the oil / gas condensate mixture for the oil pipeline depending on the marketing strategy. In addition, PETON’s in-house contact devices were used, thus ensuring operation of column equipment within a broad capacity range, as well as reduced lead times.
Under this project, 3D design engineering allowed minimization of collisions, while process simulation was used to calculate all possible operating modes of the unit and set up the required product parameters.
The unit is composed of two parts – the on-site part and the linear part. The area of the on-site part is 55,522 square metres. The linear part includes over 37 kilometres of piping.
During construction, the company installed:
- 25,516 piled substructures;
- 19,908 tons of steel structures;
- 3,163 kilometres of cable products;
- 1,362 items of main process equipment.
In addition, the company installed 9 absorption boreholes 1,470 metres deep each.
Peak staff strength at the facility reached 2,000 employees at a time. All works, including commissioning, were performed with due regard for severe weather conditions in the Extreme North.
Upon execution of the project, the CSU is able to process an extra amount of 4 MTPA of condensate, and its products conform to the required specifications and quality.
Condensate Stabilisation Unit is an essential element of Gazprom’s efforts to develop the hydrocarbon deposits of operated fields in the Nadym-Pur-Tazovsky region.
“In particular, the complex will contribute to the scheduled increase of natural gas production from the hard-to-reach Achim deposits of the Urengoy field in the long term. This will be ensured via commissioning of new refining and transportation capacities for the condensate separated from the gas produced at the Urengoy field. Gas condensate is a by-product of natural gas recovery and a valuable raw material for the oil refining and petrochemical Industry”, Gazprom website reads.
You can learn more about the project in the CSU documentary available on the Video tab in the Press Office section.