Flow-jetting bit feed tool for horizontal well

• Main Authors: PENG YANFANG, YE ZHEWEI, LI LING, ZHANG XUWEI, ZHONG MENGYING, WANG XI, CHEN BO
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2017
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention relates to a flow-jetting bit feed tool for the drilling process of a horizontal well in the petroleum and nature gas industry. According to the flow-jetting bit feed tool, the problems of difficult feed-in of a horizontal well drill column and drill hole cleaning are solved. According to the technical scheme of the flow-jetting bit feed tool, the upper end of an upper connector is connected with an upper drill column screw thread, and the lower end of a centering cylinder is connected with a lower drill column screw thread; the upper end of a connecting cylinder is connected with a screw thread of the lower end of the upper connector, and the lower end of the connecting cylinder is connected with a screw thread of the upper end of the centering cylinder; one end of a sliding pin is fixed into a pinhole of the middle of the connecting cylinder, and the other end of the sliding pin can slide in a sliding groove of the upper portion of the outer circle of a flow distribution cylinder; a spring is