PETROLEUM DRILLING SPEED-UP DEVICE

The invention relates to petroleum drilling acceleration equipment, and belongs to the technical field of petroleum drilling. The equipment comprises an upper connector, a shell, a lower connector, acentral pipe column, a central flow channel and an ejection flow channel, wherein the upper end of the upper connector is in threaded connection with a drill column, the lower end of the lower connector is in threaded connection with a drill bit, the shell comprises an upper shell body and a lower shell body which are in threaded connection, the central pipe column is located in the shell and comprises an upper central pipe, an ejection pipe and a lower central pipe, the upper end of the upper center pipe is in threaded connection with the lower end of the upper connector, the lower end of theupper center pipe is in threaded connection with the upper end of the ejection pipe, and the lower end of the ejection pipe is fixedly connected with the lower central pipe. According to the equipment, the central pipe column reciprocates up and down relative to the shell, so that the drilling pressure is effectively prevented from being excessively high or low so as to protect the drill bit, andthe pulse jet flow frequency can be continuously changed so as to improve the rock breaking efficiency. When the drilling pressure is enough, rock breaking is conducted through pulse jet flow impact,and when the drilling pressure is insufficient, rock breaking is conducted through cooperation between particle jet flow impact and extra-pulse jet flow impact, so that it is guaranteed that rock breaking is continuously and efficiently conducted.