Novel drill special for well drilling

Abstract

The invention discloses a novel drill special for well drilling. The novel drill special for well drilling comprises a drill body, a male connecting head and a clamp holder. The drill body, the male connecting head and the clamp holder are fixedly connected in sequence. The drill body comprises a fixing device and a drilling tool set. The drilling tool set is fixedly connected to the fixing device, the drilling tool set comprises a plurality of drilling blades, and each drilling blade is evenly provided with a plurality of salient points. The fixing device is of a circular truncated cone structure with the diameter being gradually decreased from top to bottom, the radius of the uppermost portion of the fixing device is the same as that of the male connecting head, integrated forming is achieved, and the height of the fixing device is 0.5-0.8 mm. The clamp holder is of an inverted bullet structure, and the bullet structure is movably connected with the male connecting head. The novel drill special for well drilling has the advantages that the structure is simple, the drilling force of the drill is increased through the arrangement of the male connecting head, the drilling tool set is matched with the fixing device, and the effect of effectively drilling wells can be achieved.

Description

technical field [0001] The invention relates to a new special drill bit for drilling, which belongs to the field of drilling equipment. Background technique [0002] The drill bit is an essential tool for breaking rocks when drilling. There are mainly three types of roller cone bits, diamond drill bits and scraper bits. Among them, ①Roller cone bits are composed of bit body, claws, roller cones, bearings, water eyes, etc. According to the structure of the cone, it is divided into two types: milling tooth type and insert type. According to the structure of the bearing, it is divided into two types: sealed (or unsealed) rolling bearing and sealed (or unsealed) sliding bearing. The cone bit is suitable for drilling various formations. most extensive. ②Diamond drill bits are initially only used in hard formations, but their varieties and scope of use are expanding day by day. Although the price of the drill bits is high, they have a long working life. If the selection is rea...

AI Technical Summary

Problems solved by technology

②Diamond drill bits are initially only used in hard formations, but their varieties and scope of use are expanding day by day. Although the price of the drill bits is high, they have a long working life. If the selection is reasonable, better economic results can be achieved; ③Scraper drill bits have a simple structure , easy to manufacture, fast drilling speed in soft formations, but large torque when drilling, easy to damage drilling tools and equipment

[0003] With the development of the oilfield drilling industry, the geological conditions of oilfields are diverse. The main problems of ordinary drill bits are low drilling efficiency, poor drilling efficiency, and complicated drilling technology. Reduced service life, affecting yield

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