The Research Of The Coiled Tubing Application In Fishing And Releasing-stuck Work

The coiled tubing technology uses which in the oil and gas industry has the very longhistory, innumerable time experiment and innovation achieved the coiled tubing technology ofnowdays. The coiled tubing technology improvement, designs specially the hydraulic pressureactuation work tool development and the cost benefit value, enables the coiled tubing becomethe feasible choice in many fishing and releasing stuck job.Along with the quality andperformance as well as the correlation equipment improvement, like the tensile strengthenhancement, the welding technology enhancement and the great size coiled tubingdevelopment, further expanded the coiled tubing work application scope. From started to usein the oil well logging and the perforation, the oil shaft pumping fluid, squeezes, the acidifiedcompression fracture, flushes, guards against the sand, the fishing, the mine shaft broaching aswell as the achievement transmits the tool or the fixed installation in the production outsidethe application, expanded to well drilling, well completion, extraction, workover, etc, hassolved the problem which many conventional work technology solved with difficulty.This article introduced the coiled tubing technological development’s history and the domesticand foreign applications, the present development situation, through the analysis of the fishingand releasing stuck technology to draw out the coiled tubing technology in to the applicationin fishing and releasing stuck work. The key choice coiled tubing technology in fishing andreleasing stuck application to take the breakthrough point, through the research domesticcorrelation coiled tubing application exploration and own field application practice,summarizes the coiled tubing in fishing and releasing stuck work from the shaping tool,the difficulty construction work, the technical superiority and the construction work flow, toprovide the experience to the future coiled tubing technology application.