Hammer Motor

Downhole Hammer Motor is the latest and most advanced downhole motor which is a percussive mechanically actuated Hammer Motor, suitable for either mud or air drilling applications. The percussive action of Hammer Motor is designed such that the bit remains in with the formation, while the hammering takes place against the top of the drive mandrel, driving the bit into the formation. The percussive impacts serve to greatly increase the effectiveness of the roller cone bit in crushing the rock, thus significantly increasing ROP.

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Now we can provide various sizes of downhole hammer motors for the sizes through 4-3/4"~17-1/2". Popular sizes are 4-3/4", 6-1/2", 6-3/4", 7-3/4", 8", 8-1/2" and 9-5/8". We can supply downhole hammer motors of special specifications, high-speed, medium-speed and low-speed downhole hammer motors upon customer’s special requirements.

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FEATURES AND BENEFITS• Steerable with no effect on MWD telemetry tools. • Compatible with all mud systems including air and nitrified systems. • No restrictions to pump rate and can operate with variable flow rates. • No special percussion bits are required and can be used with all conventional bits, with no detriment to bit wear. • Effective transfer of weight to bit. • Impact percussion force can be tailored to rock compressive strength with diversified control for impact force. • Lost circulation material/high solids content can be pumped through.

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Till now, Downhole Hammer Motors have been successfully used in more than 100 wells and increased the ROP by averagely 70% and maximum 260% compared to the conventional drill motor runs in these wells.Â