FIELD: oil and gas industry.
SUBSTANCE: power supply unit of bottomhole telemetric system contains electric generator, bottomhole rotational motor, low-speed autosyn dynamotor which rotor is connected kinematically to shaft of bottomhole motor through magnetic coupling. At that magnetic coupling is made in a sealed housing together with autosyn dynamotor. Low-speed autosyn dynamotor operates at rotary velocity of bottomhole rotational motor.
EFFECT: improving reliability of power supply unit for bottomhole telemetric system and simplifying its design.
5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MEASUREMENTS WHILE DRILLING | 2012 |
|
RU2509210C1 |
| GENERATOR-MULTIPLIER FOR SUPPLY OF BOTTOMHOLE TELEMETERING SYSTEM | 2002 |
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| METHOD AND DEVICE FOR TRANSMITTING INFORMATION ABOUT DRILLING PARAMETERS AND CONTROL OF HYDRAULIC BOTTOM-HOLE MOTORS | 1996 |
|
RU2114304C1 |
| MULTI-PHASE POWER GENERATOR OF DOWNHOLE EQUIPMENT | 2010 |
|
RU2421612C1 |
| DETERMINATION OF DOWNHOLE NATURAL-PRESSURE MOTOR RPM | 2011 |
|
RU2581616C2 |
