APPLICATION OF CATCH OVERSHOT

In the actual fish fishing process, because the bottom of the oil well is deep, and it is not easy for the oil well monitoring device to observe the state between the short catch overshot and the fish after the fishing barrel is lowered, it is difficult for the staff to grasp the bottom situation, resulting in the fishing process is time-consuming and laborious; moreover, when the existing technology fishing overshot is disassembled, it is necessary to first check the barrel and slips The prior art cylinder design makes it difficult to clean up the sediments between the cylinder and the slips, which makes it difficult to disassemble fish.

The short catch overshot is a non returnable tool for fishing from the outside wall of fish. It can not only catch all kinds of oil pipes, drill pipes, weight rods, long plumb bob, etc., but also apply torque to the stuck string to make a reverse thread.

In the process of developing oil and water wells, the geological factors in the area where the production wells are located, the technology level in the early stage of development, the engineering design, the development fund factors, the technology level of oil production or water injection, the management level of the production wells, the experimental factors of various new tools and processes, the various stimulation measures and the oil layer formation reconstruction measures and other factors may cause the production wells not to work normally. In particular, due to various kinds of sticking and falling objects, production wells are shut down, resulting in a decline in the utilization rate of oil wells, sometimes resulting in the abandonment of oil and water wells, affecting the overall development effect of the block. Therefore, it is an important measure to deal with the accidents quickly and effectively.

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