Well cementation positioning rubber plug capable of pulling wire
The invention belongs to the technical field of petroleum drilling, and discloses a drawable wire well cementation positioning rubber plug which comprises a rubber plug part, a bumping part and a brittle failure limiting part. A hole channel extending in the first direction penetrates through the ru...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention belongs to the technical field of petroleum drilling, and discloses a drawable wire well cementation positioning rubber plug which comprises a rubber plug part, a bumping part and a brittle failure limiting part. A hole channel extending in the first direction penetrates through the rubber plug piece, and the first direction points to the head end along the tail end of the rubber plug piece. The bumping part comprises a rod part, a first extension part and a first abutting part, the rod part penetrates through the hole channel, the head end of the rod part extends out of the hole channel and protrudes out of the head end of the rubber plug part, the tail end of the rod part is located in the hole channel, the first extension part is arranged at the tail end of the rod part and is spaced from the first inner wall of the hole channel, and the first inner wall is located between the tail end of the rubber plug part and the rod part; one end of the first abutting part is arranged on the first extend |
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