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Friday, June 10th 2022, 9:43am

Borehole Drill Bits

Compact rock drilling tools, PDC - Polycrystalline DiamondCompact) is the use of rock drilling tools powder and cemented carbide substrate as raw materials, in the ultrahigh pressure under the condition of high temperature sintering Borehole Drill Bits of composite superhard materials, it has both the hardness and wear resistance of rock drilling tools, but also has the strength of the cemented carbide and impact toughness, is a kind of excellent cutting tool and tool material wear-resisting, is now widely used in metal and non-metallic cutting tools, woodworking tools, oil and gas drilling and many other fields. PDC development history and its application in the field of petroleum, natural gas drilling has been in the past 35 years, during this long journey many scientific researchers therefore has made an outstanding contribution.

In terms of research and development of PDC, GE, published DHD Drill bit in 1970, 1972 ~ 1973 in commercialized Compax landmark, and the launch of the company in 1976 the fork the PDC series of products dedicated to oil and gas - Stratapax drilling with PDC bit, provides a good foundation for development of bit. Since then many PDC manufacturing companies have also made significant progress on technology innovation, including synthesis of companies in the United States (US Synthetic) manufacture of rock drilling tools more thick, more impact resistant layer of PDC in the mid - 1990 - s after entering drilling market, the PDC bit drilling effect significantly improved. In 1997 the company became the market leader.

Our country in 1987 successfully developed by zhengzhou three grinding PDC drilling market, and gradually enter the although product performance is still not perfect, but it is at a very low price to win the China's fledgling bit manufacturing. Zhengzhou new Asia composite superhard materials co., LTD., 1992, after the production of the manufacturing technology of PDC for continuous improvement, make the performance of PDC had great progress.

The development and application of PDC petroleum dth hammer bit and natural gas drilling can also be traced back to more than 30 years ago, in 1973 by drilling research center at the university of Tulsa and GE initial plane PDC bit design and several big oilfield in the United States several pioneering field drilling test, milestone significance. Since then, the bit manufacturers also unceasingly in the bit design, manufacture and use many ways made unremitting efforts and continuous improvement, to make the PDC bit widely in oil and gas drilling, and to the PDC bit manufacturing, oil and gas industry brings good economic returns.
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