Abstract:

Oil and nature gas exploration and development is going on in the regions in the adverse circumstances and the geological complex condition. For this reason, the mud pump is asked to reduce the weight and volume, to improve its structure and to raise the efficiency to adapt to various adverse circumstances and conditions. In this paper, the 7NB mud pump, a new mud pump, was described. Moving equations and computation models of the 7NB were established on the basis of studying its structure and working principal. The kinematics of the new mud pump was analyzed. It provided the theoretical supports for the improving structure of the mud pump.

Key words: drilling, 7NB mud pump, kinematics, working mechanism, reform direction