Horizontal well optical fiber feeding device

Abstract

The utility model provides a horizontal well optical fiber feeding device. The horizontal well optical fiber feeding device comprises an upper cylinder core; the tight jacking sleeve is arranged on the outer side face of the upper barrel core, a leather cup rubber barrel is arranged on one side of the tight jacking sleeve, and a rubber barrel seat is arranged at one end of the outer side face of the leather cup rubber barrel; the spring seat is arranged on one side of the glue barrel seat, a spring is arranged on one side of the spring seat, and a push rod seat is arranged at one end of the spring; the lower mandrel is arranged at one end of the outer side face of the upper cylinder core in a sleeving mode, centralizing pieces are arranged at the top and the bottom of the lower mandrel correspondingly, and a sliding sleeve is arranged at one end of each centralizing piece. According to the horizontal well optical fiber feeding device provided by the utility model, the optical fiber can be carried and fed into the casing pipe through the oil pipe, and when the oil pipe is pulled out and one end of the optical fiber is subjected to external force, an optical fiber logging instrument can be anchored at a fixed position of the casing pipe, so that the optical fiber is prevented from displacing, and the detection effect is prevented from being influenced.

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