Application Field and Drilling Techniques of Rotary Drill Bits

www.rockdrillbits.org

As the development of national economy and the increasing investment capital on basic constructions, under the server competitive market, constructors are more likely to choose drilling machines with high working efficiency, low energy consumption, low cost to use in drilling projects. Among the various kinds of drilling bits, roller bits have been popular used by many people. Roller bits, together with drag bits, PDC drill bits are belonging to rotary drill bits. According to the number of cutter tooth, the types of roller bits are mainly includes single roller bits, double roller bits as well as tricone bit, among which tricone bits are mostly wide use.

The application field of roller bits are mainly includes well drilling industry, mining exploration, natural gas drilling and drilling equipments &machines. Made by the material of steel and tungsten carbides, roller bits have the characteristics of long service life, high melting point and hardness resistance. Beside, since the invention of jet nozzle rock bits and long nozzle cone bits, the drilling speed of roller bits has been quietly improved, marking a big breakthrough of the roller bit technique. Under those good features, roller bits can be used in various kinds of rock formations, from soft rock formation to hard formation.

Under different drilling situations, there is no doubt that we should adjust the performance of drilling tools so as to best use in drilling process. During this process, actually, the drilling technique has been improved and the drilling bits have also been changed into better drilling tools. In the recent years, especially in the past ten years, the structure and performance of roller bits have changed a lot, which makes it more suitable to be used in various areas. The improved performance also directly reduces the cost of bits. Service life and drilling speed, as we know, are two important factors that influence the cost of drilling bits finally and totally. So, to improve drilling speed and increase its service life has become the most efficient way to reduce the cost of drilling bits. Some data show that comparing with drilling service life, the improvement of drilling speed has a bigger influence on the cost of drilling bits. The improvement of bit cutting structure is the most useful way to improve the drilling speed. In the past, more attentions are paid on the main cutting structures. Actually, the gauge tooth structure also has a big influence on the drilling speed, especially when it drills in the highly deviated well and horizontal well. Many newly invented gauge structures have been used in roller bits and practice shows that it has achieved good results. Nowadays, the material of gauge has changed from low abrasive resistance to high abrasive resistance, which further improves the drilling speed and service life. What is more, there are many technicians are concentrating on researching the structure and material of gauge structures, especially on positive gauge structures. The purpose of it is to enhance the performance of drilling bits so as to provide the most efficient rock drilling bits for well drilling industries.

To sum up, roller bits has become an important drilling tool in the drilling industry.

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Company Name: Qideli Rock Drill Tools Co., Ltd
Contact Person: www.rockdrillbits.org
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Phone: +86-591-87513252
Country: China
Website: www.rockdrillbits.org

Source: www.abnewswire.com