Petroleum drill bit

Abstract

Provided is a petroleum drill bit. The petroleum drill bit comprises a shell, and a main drill is arranged at the upper end of the shell. The petroleum drill bit further comprises a guide drill installed on the main drill; an opening is formed in the top end of the main drill and is as large as the bottom wide section of the guide drill; clamping devices are arranged at the two ends of the guide drill; each clamping device comprises a clamping fastener, a spring for connecting the clamping fastener with the inner wall of the main drill, and a directed frame; convex blocks are arranged on the two sides of the guide drill; and the clamping fasteners are provided with a plurality of sets of groove holes matched with the convex blocks. The petroleum drill bit has the beneficial effects that the structure is scientific and reasonable, implementation is quite convenient, the petroleum drill bit can adapt to different terrains by changing the specification of the guide drill in the main drill, operation is simple, the human and financial resource consumption of replacement of the drill bit is avoided, and the cost is reduced.

Description

[0001] This application was filed on September 16, 2015, the application number is 201510607401.8, and the title of the invention is a divisional application of a patent for a new type of oil drill bit. technical field [0002] The invention relates to the field of petroleum exploration, in particular to a novel petroleum drill bit which can adapt to various environments. Background technique [0003] Petroleum is one of the most important and indispensable non-renewable energy sources on the earth. With people's excessive exploitation, shallow oil has become more and more scarce, and people have gradually shifted the direction of exploitation to the ocean and deep layers. As an indispensable equipment in oil extraction, drill bits have been made more and more advanced improvements by people. It has become more and more suitable for deep mining, but people often change the existing drill bits in terms of material and hardness, which does not reduce the production cost of the...

AI Technical Summary

Problems solved by technology

With people's excessive exploitation, shallow oil has become more and more scarce, and people have gradually shifted the direction of exploitation to the ocean and deep layers. As an indispensable equipment in oil extraction, drill bits have been made more and more advanced improvements by people. It has become more and more suitable for deep mining, but people often change the existing drill bits in terms of material and hardness, which does not reduce the production cost of the drill bit, but the cost is getting higher and higher

[0004] In the process of deep drilling, the guide drill is indispensable. Without the guidance of the guide drill, not only the desired destination will not be reached, but the drilling time will be increased, the service life of the drill bit will be excessively consumed, and a lot of manpower and material resources will be consumed Financial resources, resulting in an invisible increase in costs several times

[0005] And in different terrains and geology with different hardness, the specifications of the required guide drills are not the same, and it is necessary to prepare and replace a large number of guide drills with different specifications, which increases the cost of drilling time and costs for preparing different guide drills for no reason. a lot of money

Images