OZNA takes part in the development of the unique Kuyumba oil and gas condensate field

1 July 2019
OZNA takes part in the development of the unique Kuyumba oil and gas condensate field

In the recent years, OZNA has been much involved in the development of Kuyumba Field in Evenkiysky District of Krasnodar Krai. This field is unique in terms of the size of reserves. Category АВ1В2 initial recoverable oil reserves amount to 318 million tons. The field is developed by Slavneft-Krasnoyarskneftegaz, a joint venture of Rosneft and Gazpromneft. Kuyumba Field is intended to supply oil to the East Siberia – Pacific Ocean oil pipeline system through the Kuyumba-Taishet oil pipeline. The target markets are Asia and Africa. The oil quality is assumed to be comparable to the Brent grade. This year, Rosneft intends to triple the oil production at Kuyumba Field.

Active work on production infrastructure development and preparation of reserves for commercial development at the field has been in progress since 2012. OZNA has been engaged in this promising project directly from the first stage of field development. In 2013, the company supplied a multiphase pump station. The equipment ensures stable transportation of crude oil from wells to the oil tank farm via a 23 km long pressure oil pipeline.

OZNA equipment has been operated in the entire oil-production process chain at the Kuyumba field during the last five years – from oil flowrate metering to pumping into the main line systems. The company supplied 3 mobile well testing and completion units (MWTCU) in 2018, one in 2019. The project is distinguished by an early launching of pilot commercial development well pads into the long run with minimal capital costs, therefore the units have a special mobile design that does not require any foundations or permanent bases. They can handle a wide range of flow rates and gas factors under uncertain well parameters. The liquid output of the equipment is from 50 to 600 m3/day, the gas output is from 10 000 to 295 200 n.m3/day. In this case, the water cut can range from 0 to 60 %. Units are designed and manufactured taking into account the complexity of logistics in the absence of well-developed infrastructure. The compact design and practical transport dimensions ensure the necessary mobility, ease of movement and installation during well testing. To facilitate mobilization, the unit includes a special receiving manifold on a mounting base.

The specific nature of the field calls for new approaches to flowrate metering. The use of OZNA-Vx metering packages (MP) featuring the separatorless technology has become an innovative solution. They allow for almost any kind of complexity in continuous metering of oil, water, and gas flowrates and fractional makeup of multiphase flows. Today there are 6 packages in the fleet of OZNA-Vx MPs at the Kuyumba field.

The oil is pumped at the field by several large stations, designed and manufactured by OZNA. These include the external transportation and tank farm pumping stations, oil emulsion pumping station, first stage station, and booster pump station unit. The equipment is delivered to the Client on a turnkey basis, ready for operation; all installation supervision and commissioning activities are performed by experts of specialized OZNA services.

Fire protection of facilities at Kuyumba Field is ensured by fire hydrant units; the batch of 10 units was supplied in 2017.

 This year OZNA has made a contract for supply of a pipe-still heater package (PHP) complete with the hardware unit for the Central gathering station (CGS) of Kuyumba Field. The equipment is designed to heat the oil emulsion, will have a capacity of up to 560 t/h and will be fuelled with associated petroleum gas (APG). This addresses the issue of APG disposal at a distant field, where development is ongoing along with construction of a central gathering plant. After its commissioning, the processed oil will be transported through the existing Kuyumba-Taishet oil pipeline to the East Siberia-Pacific Ocean (ESPO) pipeline system.

OZNA participation in such unique and large-scale projects requiring an individual approach, once again proves that the Company can face the industry’s most complex challenges.

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