Gas separators

Borets manufactures gas separators of type 3MNGB, in sizes 5, 5À, 6 and 6B for operation with pump types ESPD, ESPM, 10ESPD, 10ESPM and ESPDP. Gas separators are installed at the pump intake in order to reduce free gas content of the formation fluid before it enters into the submersible pump.

All of the models of the gas separators do not have an axial bearing in their design. Thrust loads in 3MNGB type gas separator are transferred to the thrust bearing of the protector. This thrust bearing is operating in clean oil and so is not exposed to aggressive fluids, increasing reliability and durability.

All gas separators are equipped with a tubular liner, protecting the gas separator housing from hydro-abrasive wear. The tubular liners, heads and bases of the gas separators are made from stainless steel to increase resistance to abrasive wear. Joints are sealed by rubber gaskets for protection from gas inrush into them. In order to increase the rigidity of the shaft intermediate radial bearing are installed. The material of the bearings is tungsten carbide.

Operational conditions

pH value	6.0-8.5
Solids particles content in formation fluid, g / l	0.5
Particles micro-hardness according to Mohs scale	not more than 7 points
Maximum free gas content at the gas separator- dispersant intake, by volume, %	not more than 55
Temperature of pumped-out fluid, °F (°C)	not more than 275(135), 302 (150)*

* - special order

Encryption of the gas separator coding

X Type of gas separator design: - no number is assigned to gas separator with shaft thrust bearing 2 - tandem gas separator 3 - without shaft thrust bearing 3.2 - tandem, without shaft thrust bearing  MN Intake module version  G Gas separator  B Borets  5 (5À, 6, 6B) Pump size group  04 With incorporated intermediate bearing  K Corrosion-resistant version  M Reconditioned design

Examples of coding for gas separator design type: 1. 3MNGB5A.20-6MB, where: 20 – shaft diameter; 6 – six-point joint; MB – for connecting to shroud intake module. 2. 3MNGB5A-8MB, where: 8 – eight-point joint. 3. 3MNGB5A-6PR, where: PR – the intake is on the protector section.

Gas separator GS5-1V

This gas separator is a device to separate dynamic gas using effect of free vortex and differs from ordinary gas separator.

Relation of gas percentage at pump intake vs. fluid production at residual gas content value of 25%.

 

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Dispersants

Borets manufactures dispersants of type 3MNDB, in sizes 5, 5À and 6 for operation with ESPD, ESPM, 10ESPD, 10ESPM and ESPDP pumps. Dispersants are used for breaking up accumulated gas in formation fluid and prepare a homogeneous gas-liquid mixture before it enters the pump intake.

Dispersants are used in wells with increased foaming characteristics instead of gas separators at the pump intake. This design of dispersant does not have a shaft thrust bearing, so the thrust loads are transferred to the shaft of the protector.

The inner liners of the dispersant housings are made of stainless steel to increase resistance to hydro-abrasive wear. Couplings joints are sealed by rubber gaskets for protection from gas inrush into the housing.

Operational conditions

pH value	6.0-8.5
Solids particles content in formation fluid, g / l	0.5
Particles micro-hardness according to Mohs scale	not more than 7 points
Maximum free gas content at the gas separator- dispersant intake, by volume, %	not more than 55
Temperature of pumped-out fluid, °F (°C)	not more than 275(135), 302 (150)*

* - special order

Encryption of the dispersant coding

Gas separators-dispersants

Operational conditions

pH value	6.0-8.5
Solids particles content in formation fluid, g / l	0.5
Particles micro-hardness according to Mohs scale	not more than 7 points
Maximum free gas content at the gas separator- dispersant intake, by volume, %	not more than 68
Temperature of pumped-out fluid, °F (°C)	not more than 275(135), 302 (150)*

* - special order

Encryption of the gas separator-dispersant coding

MNFB multiphase pump units

Functions:

• prevention of production stoppage by means of handling free gas
• ensure reduction of fluid density inside the tubing.

MNFB pump units are divided into types as follows depending on the volume of free gas at pump intake.

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