Oil pipe built-in oil drill pipe

Abstract

The invention discloses an oil drill rod with a built-in oil pipes. The oil drill rod with the built-in oil pipes is characterized by comprising a drill rod (1) and oil pipes (2); the body of the drill rod (1) consists of a main rod (1.1) in the middle, and a male connector (1.2) and a female connector (1.3) at the two ends of the drill rod (1), wherein the oil pipes (2) are placed in the drill rod (1); a plurality of spring centralizers (3) are arranged on the outer parts of the intermediate sections of the oil pipes (2) in a sleeving manner; a block-shaped centralizer (4) is arranged at each of the positions, close to the two ends, of the oil pipes (2); when two oil drill rods are connected, the drill rods (1) are in threaded connection and matching with each other through the male connector (1.2) and the female connector (1.3); the oil pipes (2) are buckled and matched with each other through clamping springs (5). According to the oil drill rod with the built-in oil pipes, the oil pipes are fixed to the interior of the drill rod; the drill rod is only required to be drilled into a seabed without performing the processes of unplugging the drill rod, arranging a support, and inserting the oil pipes when oil is drilled, so that an oil drilling process is simplified; the oil drilling efficiency is improved; the offshore oil drilling cost is saved.

Description

technical field [0001] The invention relates to an oil drill pipe with a built-in oil pipe, which is used in the drilling platform of an oil field, especially an offshore oil field. Background technique [0002] Drill pipe is used in drilling for oil, gas, water and mineral deposits. Among them, the conventional drilling method of the offshore oil drilling platform is to first use the drill pipe to drill a hole on the seabed, then pull out the oil pipe drill pipe, support it underground, and then insert the oil pipe to extract oil. However, the drill pipe needs to be drilled in and taken out, and the oil pipe needs to be inserted in addition. Such a work process is cumbersome, and the work efficiency is not high, which affects the efficiency of offshore oil drilling. Contents of the invention [0003] The object of the present invention is to overcome above-mentioned deficiency, provide a kind of simplification oil drilling process, improve oil drilling efficiency oil pip...

AI Technical Summary

Problems solved by technology

However, in this way, the drill pipe needs to be drilled in and taken out, and another oil pipe needs to be inserted. This kind of work process is cumbersome and the work efficiency is not high, which affects the efficiency of offshore drilling.

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