Since 2016, our company has mastered the serial production of working stages for ESP units in sizes from 272 series till 740 seriesmanufactured using investment casting. This technology enables the production of high-precision castings with complex configurations. We have also mastered the production of working stage castings using additive manufacturing (growing casting molds using 3D-printing). This technology enables the rapid creation of molds and cores, which are effective for the rapid casting of complex parts.

The stages we offer are available in either double-bearing or single-bearing configurations. Their design parameters and head-flow characteristics are fully compatible with stages from domestic and international oil production equipment manufacturers.
We manufacture these stages from corrosion-resistant and wear-resistant Ni-resist cast iron (a nickel-containing cast iron with an austenitic structure; non-magnetic, heat-resistant, corrosion-resistant, and cold-resistant material), as well as corrosion-resistant stainless alloys.

Mechanical properties:
Brinell hardness – from 120 to 180 HB, tensile strength – at least 12 kg/mm2.
The step material meets the following operating conditions:

• Formation fluid – a mixture of oil, associated water, mineral impurities, and petroleum gas;
• Concentration of solid particles in the formation fluid – 0.5 g/L
• Maximum fluid density, kg/m³ – 1400;
• Maximum free gas content at the pump intake – 25% by volume, or 55% with a gas separator included in the unit;
• Pumped fluid temperature – up to 1350°C;
• Particle hardness up to 7 points on the Mohs scale;
• Maximum produced water content 99%;
• Produced water pH – 5.0-8.5.

Our company has also developed a universal design for 272-size protectorizers. These products are designed to protect cables and cable lines in wells and are installed on flange connections of submersible pump sections. All protectorizers are precision-cast and feature reinforced connections.

The stages of cold-hardening mixtures technology have been mastered:

• 14-40 m³/h;
• 14-90 m³/h;
• 16-250 m³/h;

In the process of development:

• 14-60 m3/h.

Prototyping technologies (growing wax models of castings on a 3D printer) and additive manufacturing (growing sand molds on a 3D printer) can also be used to produce stages. These processes significantly accelerate the production of castings without the need for expensive and time-consuming mold manufacturing.