311mm Tricone Rock Bit / Oil Drill Bit For Rock 6 5/8" API REG PIN API-7-1 Standard

311mm Rock Bit ,TCI Bit , 6 5/8" API REG. PIN , Tungsten Carbide Insert Gauge Protection

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

ROLLER CONE BIT CUTTING STRUCTURE

Soft formation bits require deep penetration into the rock so the teeth are long, thin and widely spaced to prevent bit balling.

Bit balling occurs when soft formations are drilled and the soft material accumulates on the surface of the bit preventing the teeth from penetrating the rock.

The long teeth take up space, so the bearing size must be reduced. This is acceptable since the loading should not be excessive in soft formations.

Hejian City Feilong Retop Rock Bit Manufacture Co., Ltd. is established in 1992 and located in Hebei Province, China. Integrated with Beijing Feilong International Trade Co., Ltd. and Beijing Superior Drilling Equipment Co., Ltd. , the company has involved into a comprehensive enterprise integrating production, R&D and distribution of tricone bits, PDC bits, trenchless and rotary drilling tools.

The company serves the customers in oil & gas drilling, mining, exploration, HDD drilling and rotary drilling with covering a complete product line.

The company covers an area of 36,000 square meter and has more than 200 employees, including more than 100 technicians. The company has equipped with contemporary advanced processing equipment of processing and detecting and testing instruments. The company has obtained the certification of the quality system: ISO 9001, ISO 14001, OHSAS 18001 and mostly important API 7-1.

The company’s annual production of various drilling tools is over 10,000 sets, which exported to over 20 countries and regions. We, FeiLong ReTop ( FLRT ) are willing to cooperate with friends at home and abroad to make joint development and contribute to global energy development and urban infrastructure development.