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It is the main way to improve the construction efficiency to select suitable reamer according to the characteristics of stratum.In order to adapt to different strata, the structure forms of reamer are...

The reaming design includes reaming classification, reaming type selection, reaming drilling assembly, cleaning drilling assembly, bit pressure, torque, speed and mud flow rate, etc.The classification...

The roller cone bit break rock by crushing and shearing. The cone is rolling at the bottom of the well, so the require for the torque is small, which can greatly reduce the mechanical load.

The design concept of the core-while-drilling bit is to remove 1-2 teeth in the center of the normal PDC bit.

Horizontal Directional Drilling(HDD for short) is a modern trenchless construction technology that combines the directional drilling technology of the petroleum industry with the traditional highway p...

In the process of drilling, drill bit is the main tool to break rock, and borehole is formed by a drill bit breaking rock.

Drilling work is a complex and diversified system engineering.

In oil drilling and geological drilling, the cone drill bit is the most widely used. When the bit rotates, it can impact, crush and shear the stratum rock.

GREAT has started production.

In 2019, GREAT workshop 2 will be put into production. A lot of imported equipment has been introduced. Prepare for 2020.

Thanks to the support of customers in 2019, we will continue to work hard in 2020 to provide services for more customers.

Offshore Technology Conference (OTC), founded in 1969, is an annual event with the strong support of 12 professional industry organizations, including the American petroleum association, and its scale and influence have been expanding year by year.

From March 11th to 13th, China-UK green manufacturing and remanufacturing industry development summit was held in Hejian City.

Cangzhou Great Drill Bits Co. Ltd.(GREAT) , founded in 2010 . With an open mind, GREAT attracts talents and technologies, drives development through innovation, transformation and upgrading, and becomes stronger and bigger.