FIELD: oil and gas industry.
SUBSTANCE: device includes housing including the accumulator compensated as to pressure, pump with drive motor, pressure sensor and control unit. Device is connected to underwater access system and has the possibility of receiving control commands both from the surface and in an independent mode due to the battery, processor and memory unit, which are installed in the housing. Problems relating to excess loss of lubricating fluid to atmosphere are excluded due to constant monitoring of underwater and borehole pressure, and possibility of constant support of minimum pressure differential.
EFFECT: providing the communication to outside pressure sensor; receiving the signals from the specified sensor and controlling the pump to adjust lubricant injection so that lubricant injection pressure exceeds outside and borehole pressure.
22 cl, 3 cl
| Title | Year | Author | Number |
|---|---|---|---|
| CONTROL SYSTEM | 2008 |
|
RU2468202C2 |
| POWER SYSTEM | 2005 |
|
RU2361066C2 |
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|
RU2600066C1 |
