Top end ball injector

• Main Authors: ZHAO GONGLI, NAN ZHIXUE, WANG YANXING, YU HUI, ZHAO YAFEN, LI RUICHAO
• Format: Patent
• Language: Chinese; English
• Published: 26.10.2016
• 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 top end ball injector. The problems that when the diameter of steel balls injected by an existing ball injector exceeds the range, the steel balls need to be injected one by one, and construction and operation are cumbersome are solved. The top end ball injector is characterized in that the upper end of a body (4) is a cylinder; the top of the cylinder is connected with an end cap (5); the inner side of the middle of the body (4) is connected with a ball injecting core (3) in the horizontal direction; a ball injecting blind hole is formed in the side wall of the ball injecting core (3) and corresponds to the cylinder on the body (4); and the end of the ball injecting core (3) is fixed through a nut (1). The top end ball injector can achieve injection of multiple steel balls needed by a one-pass fracturing pipe string by one-time ball containing, and the range of the diameter of injected balls is large. 本发明涉及种顶端投球器。主要解决现有的投球器所投钢球直径出范围时需要单个投入、施工操作繁琐的问题。其特征在于：所述主体（4）上段为圆筒，圆筒的顶部连接有堵头（5）