A kind of well falling fish salvage component and salvage method

Abstract

The invention discloses a salvaging component and a salvaging method for downhole fish. The salvage component for downhole fish comprises: a jar, the jar comprises a connection cavity arranged at one end, and a jar arranged at the other end. a connecting head; the connecting cavity is provided with a sliding block that can slide in the connecting cavity; the connecting head is used for connecting with a lifting device to realize the lifting and lowering of the jar; a detector, the detector includes The detection head arranged at one end is arranged at the first connection part at the other end; the salvage piece includes a salvage head arranged at one end, and the second connection part arranged at the other end; In the connecting cavity, the other end of the sliding block can be detachably connected to the first connecting part or the second connecting part, respectively. Through the improvement, the purpose of improving the success rate of salvaging fish in the well can be achieved, and the on-site construction can be ensured. The job went smoothly.

Description

technical field [0001] The invention relates to the technical field of production control of oil and gas wells, in particular to a salvage component and a salvage method for downhole fish. Background technique [0002] During the exploration and development of oil and natural gas, there are all kinds of fish in the wellbore, which seriously affects the safe production of oil and gas, and requires downhole salvage treatment. The fish that fall in the well includes pipes, rods, logging instruments, ropes, and small pieces of falling objects. With the increase in the types of fish that fell from wells on site, the following problems have arisen in the salvage process of conventional fishing tools: (1) the wire-shaped fish cannot be shaped and the direction cannot be controlled; (2) the length of ropes such as steel wires and cables is short and cannot be salvaged effectively; ③The steel wire is close to the well wall, causing the salvage tool to get stuck; ④There is dirt in th...

AI Technical Summary

Problems solved by technology

With the increase of fish species in wells on site, the following problems have arisen in the fishing process with conventional fishing tools: ①The wire-shaped fish cannot be shaped and the direction cannot be controlled; ③The steel wire is close to the well wall, causing the fishing tool to get stuck; ④There is dirt in the upper shaft of the fish, and the fishing tool cannot reach the position of the fish, which seriously affects the construction progress on site

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