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1965•Journal of the Japanese Association for Petroleum TechnologyOpen access

A Stuby on the Hard-formation Bit

Yoshihiro Nakayama

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Abstract

New drilling mechanism to achieve optimum penetration rates for hard formation has been reduired in the drilling engineering. To get a solution for this, a new-type bit has been studied at the laboratory of Japanese Petroleum Exploitation Company. The bit, based on the new drilling mechanism, consists of cone-cutters and diamond cutting elements. The bit shows higher penetration rate than a conventional rock bit. The result of experiments on this bit is described in this paper.

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What this paper is about

New drilling mechanism to achieve optimum penetration rates for hard formation has been reduired in the drilling engineering. To get a solution for this, a new-type bit has been studied at the laboratory of Japanese Petroleum Exploitation Company. The bit, based on the new drilling mechanism, consists of cone-cutters and diamond cutting elements. The bit shows higher penetration rate than a conventional rock bit. The result of experiments on this bit is described in this paper.

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Available abstract

New drilling mechanism to achieve optimum penetration rates for hard formation has been reduired in the drilling engineering. To get a solution for this, a new-type bit has been studied at the laboratory of Japanese Petroleum Exploitation Company. The bit, based on the new drilling mechanism, consists of cone-cutters and diamond cutting elements. The bit shows higher penetration rate than a conventional rock bit. The result of experiments on this bit is described in this paper.

Key concepts: Bit (key), Drilling, Rate of penetration, Penetration rate, Petroleum engineering, Penetration (warfare), Diamond, Geology

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