Coiled tubing logging split-fit testing device

Abstract

The invention relates to a split matching testing device for coiled tubing well logging. The technical solution is: the seat sealer is connected to the lower end of the liner, and the seat sealer is aligned with the seat sealer to rotate through the seat seal wrench, the liner moves down, and the lock spring drives the cone to move up, and the sealing rubber cylinder is extruded to expand to achieve sealing; The lower end of the sealing PTFE protective pad connected to the coiled tubing is connected to the transition joint. The lower part of the transition joint is provided with a sealing rubber ring and an open support ring. The sealing protection sleeve is movably connected to the transition joint through the open support ring. The end of the test cable passes the connection test. The connecting head connects the test tube, and the lower end of the test tube is provided with a guide shoe. The beneficial effects are: due to the split design, the production is simpler and more reliable; there is no welding, which avoids the heating of the electronic components, and at the same time increases the fixing of the electronic components, making the use of the electronic components more firm and reliable; Compared with the advanced direct butt welding process, it overcomes the phenomenon that the weld joint is broken due to brittleness and hardness.

Description

technical field [0001] The invention relates to a coiled tubing logging auxiliary processing device and method, in particular to a coiled tubing logging split matching testing device. Background technique [0002] In the coiled tubing logging process, generally the logging joint is directly welded to the end of the coiled tubing, and then the testing instrument is connected and run downhole, but there is a problem that the measuring electronic Therefore, in welding, temperature control is a very important technical parameter, and this parameter has a specific numerical control method under the current technical conditions. At the same time, after the welding temperature is limited, the welding quality will be improved. It will be greatly affected; therefore, in actual operation, due to the fear of damage to electronic components during welding, the usual method is to lengthen the transition section, which creates a new problem: in a deviated well, if the well deviates If th...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to address the above-mentioned defects in the prior art, and to provide a split-coordinate testing device for coiled tubing well logging. Due to the split-type design, the production is simpler and more reliable, and there are no welding parts in the whole, avoiding the The heating of electronic components increases the fixing of electronic components at the same time, making the use of electronic components more firm and reliable; the length is also greatly shortened, which avoids the problem of disconnection of welding joints in inclined shafts

Images