Drill rod assembly convenient to salvage after being broken and used for oil exploitation

Abstract

The invention discloses a drill rod assembly convenient to salvage after fracture for oil exploitation and belongs to the field of oil exploitation, the drill rod assembly convenient to salvage after fracture for oil exploitation can realize auxiliary connection of a fractured rod body, the rod body is prevented from directly falling off after fracture during work, and a retention piece is mounted in a connecting cavity, so that the rod body can be conveniently fished after fracture, and the rod body can be conveniently fished after fracture. The connecting piece is connected between the retention pieces installed on the two adjacent rod bodies, auxiliary connection can be carried out on the interior of each rod body, direct falling of the lower fracture position can be avoided when the rod body is fractured through auxiliary connection, and the fractured rod body can be directly and slowly lifted upwards through lifting; and the fishing speed and convenience after the device is broken are improved to a certain extent, and the oil exploitation efficiency is effectively guaranteed.

Description

technical field [0001] The invention relates to the field of oil exploitation, more specifically, to a drill pipe assembly for oil exploitation that is easy to salvage after fracture. Background technique [0002] Drill pipe is a kind of steel pipe with threads on both upper and lower ends. It is usually used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling well. Through the connection of the drill pipe, underground minerals can be mined effectively, so its It is widely used in the mining of underground gas-liquid minerals such as oil and natural gas. [0003] Since the drill pipe needs to be rotated and pressed upward during use, the drill pipe has a certain number of uses during use. During use, if the construction operation is wrong or affected by the geological environment, it is easy to cause the drill pipe to be stressed during drilling. Uneven fracture, the broken drill pi...

AI Technical Summary

Problems solved by technology

[0003] Since the drill pipe needs to be rotated and pressed upward during use, the drill pipe has a certain number of uses during use. During use, if the construction operation is wrong or affected by the geological environment, it is easy to cause the drill pipe to be stressed during drilling. Uneven fracture, the broken drill pipe stays inside the drill hole formed by drilling. When the drilling position is too deep, the broken drill pipe is inconvenient to salvage, which affects the efficiency of oil extraction, and even leads to the abandonment of the drill hole in severe cases

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