FIELD: drilling.
SUBSTANCE: group of inventions relates to methods for performing operations in a wellbore by means of a drilling rig. The method for performing an operation in a wellbore includes stages, at which the following is carried out: movement of a pipe column relatively to the wellbore by means of an upper drive; movement of a pipe candle between a position on a candlestick and a position of the candle transmission by means of a bridge stacker and a guide lever of the candlestick; movement of the pipe candle between the position of the candle transmission and a position in the center of the well by means of the upper drive and a lower stabilizing lever; application of a drill key to a lock between the pipe candle and the pipe column. The upper drive and the lower stabilizing lever consistently move the tube candle to and from the position in the center of the well.
EFFECT: increased efficiency and operability of processes of lowering and lifting pipes on the drilling rig without damage to security.
21 cl, 145 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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|
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|
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| DRILLING RIG | 1995 |
|
RU2100565C1 |
| DRILLING RIG FOR WELL-DRILLING FROM FLOATING VESSEL | 0 |
|
SU939715A1 |
