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Monoblock is the system in which the submersible electric motor and the protector are connected together in a single unit which is called the mono-block. In this system either the protector type PB92 or 1PB92 is used.
The application of the mono-block essentially assists installation of the ESP system in severe northern conditions with low ambient temperatures.
Distinctive features:
- the mono-block is pre-filled with oil prior to installation
- refueling and pressurizing during well installation is not required
- the mono-block is transported in the special shipment box.
Operational conditions
| Formation fluid temperature, °F (°C): |
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| - for standard design |
up to 230 (110) |
| - for high temperature design |
up to 275(135), 302 (150)* |
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Formation fluid pressure, psi (kg / cm2)
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up to 4266 (300)
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Solids particles content in formation fluid, g / l
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up to 1
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Hydrogen sulphide content, g /l
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up to 1.25
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* - Special order |
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