As part of the power supply complex "South Khylchuyu" (GTPP-125), a gas compressor station has been commissioned
28 January 2008
At the site of Central Production Facility of the South Khylchuyu field, the construction of a gas turbine power plant is underway. The power supply complex "South Khylchuyu" is created on the basis of five SGT-600 gas turbine units (GTU) manufactured by Siemens with a capacity of 25 MW. The main equipment also includes five waste-heat boilers, two peak water-heating boilers and two emergency diesel-generator units.The installed electric capacity of the power supply complex will 125 MW. This, for example, is enough to meet the electricity needs of four such cities as Naryan-Mar. The thermal capacity is 140 MW, 125 of which will be produced by the waste-heat boilers and 15 MW by the peak boilers. General designer of the facility is NPP Energoperspektiva.
A highly efficient GTPP will become the center of a local (autonomous) power system that, in the Far North conditions, will provide electricity supply to the oil-producing infrastructure and replace several gas reciprocating power plants with low capacity.
Currently, the first GTU has been put into operation. The power supply complex will be put to full capacity in 2009.
Gas-turbine power units can operate on three types of fuel:
- Main is desulfurized low-pressure associated petroleum gas (0.3 MPa);
- Reserve is natural gas of the Yareiu field with pressure of 2.6 ... 3 MPa;
- Emergency is diesel fuel of arctic kind.
At present, the first power generating unit has been operating by natural gas. Associated gas produced at the South Khylchuyu field will be used as a fuel for turbines of power supply complex after commissioning of the APG purification plant.
Treatment of gas and its supply to the turbines are carried out by the booster compressor station of the hangar type. As part of the BCS, there are four compressor units (CU) with a maximum capacity of 14,000 m3 / h, capable of injecting pressure to the required working level of 2.7 MPa.
In addition to the compressor module, each CU is equipped with a pre-filtering module (two-stage filter-scrubber) and a system for maintaining the design temperature of gas feeding. All CUs are automated; local ACSs are linked into a group control system integrated with the APCS of the power supply complex. The capacity of the compressor units is controlled by a two-level regulation system.
As a result, BCS provides the established parameters of fuel gas in terms of purity, temperature, and pressure and flow rate. The whole pre-start cycle (erection supervision, adjustment, tests) was performed by ENERGAS specialists.
REFERENCE. The South Khylchuyu field will be put into commercial operation in the current year. It is being developed by the Naryanmarneftegas LLC (a subsidiary of LUKOIL OJSC) in cooperation with ConocoPhillips. In 2009 it is planned to produce 7.5 million tons of oil. The field is connected by an oil pipeline with the Varandey terminal (the coast of the Pechora Sea). The terminal capacity of the Varandey terminal is 12 million tons of oil per year.
A feature of the South Khylchuyu field is the high content of hydrogen sulfide in oil and associated petroleum gas. In the composition of APG, the volume fraction of hydrogen sulfide is about 2.5%. Without pre-treatment, it is not possible to use APG for production needs of the field.
| Previous news | Back to the list | Next news |