Cable-sealed traversing well washing tool

Abstract

The invention discloses a cable-sealed traversing well washing tool. The cable-sealed traversing well washing tool comprises an outer tool barrel, a radial squeezing sealing device and an axial movingdriving device, wherein the axial moving driving device and the radial squeezing sealing device are assembled inside the outer tool barrel; the axial moving driving device is assembled at the lower end of the radial squeezing sealing device; a conical surface inner bulge for forcing the radial squeezing sealing device to shrink radially is arranged on the inner wall of the outer tool barrel; a circulating hole is formed in the outer tool barrel; the circulating hole is formed above the conical surface inner bulge. A test cable can run through the well washing tool axially, and a well washingfluid cannot run through the well washing tool axially, but can only circulate in a well washing channel sideways, so that contact between a circuit joint of a test instrument and the well washing fluid is avoided while the connection between the cable and the test instrument is guaranteed; the cable-sealed traversing well washing tool has the characteristics of being simple in structure, convenient in operation and connection and reliable in sealing.

Description

technical field [0001] The invention relates to the technology of a well-flushing tool, in particular to a well-flushing tool for cable seal penetration. Background technique [0002] With the continuous diversification and development of oilfield development measures and technological means, cables, as signal transmission and energy transmission tools, play a role in connecting the ground operating system and downhole testing system, and are more and more used in oil and water well testing and implementation of technological measures. . The common way to use the cable is to directly connect the test instrument to run into the empty wellbore, and directly pull the instrument by the cable. This method cannot circulate the well during the test process, neither can guarantee the test effect, nor is it conducive to the safety of the instrument; another In this way, the wellbore is run into the tubing to establish a well flushing circulation channel. The cable passes through the...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cable seal penetrating well cleaning tool, which solves the problems that the current test construction of the cable instrument cannot be cleaned in real time, or there are safety hazards such as the lifting of the testing instrument and the damage to the instrument itself.

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