Downhole eccentric rapid butt joint device

Abstract

The invention relates to the technical field of oil exploitation intelligent well completion, in particular to an underground eccentric rapid butt joint device which comprises an upper inserting assembly and a lower tie-back assembly, the upper inserting assembly comprises a lifting short section, a winding mandrel, a locking shaft, a sealing rod, an anchoring assembly, a guiding shoe, a first connector fixing assembly, a pipeline guiding assembly, a second connector fixing assembly, a second connector fixing assembly and a second connector fixing assembly, and the first connector fixing assembly is fixedly arranged on the lifting short section; the lower tie-back assembly comprises a guide sleeve, one end of the guide sleeve is arranged on the guide shoe in a sleeving mode, the other end of the guide sleeve is fixedly connected with a second connector fixing assembly and a sealing cylinder, one end of the sealing cylinder is fixedly connected with the second connector fixing assembly, and the other end of the sealing cylinder is in threaded connection with an anchoring cylinder. According to the underground well completion filling sand prevention device, the lower well completion filling sand prevention operation can be met, an upper well completion system and a lower well completion system can be effectively communicated, and an underground production fluid control system, an underground dynamic monitoring and signal transmission system and a ground remote control system are effectively connected and separated.

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