Upsetting anti-tripping solid sucker rod

• Main Authors: WENGANG DU, XIUDA XIN, XINTANG LI
• Format: Patent
• Language: English
• Published: 13.08.2003
• Edition: 7
• 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 utility model discloses an upsetting anti-tripping solid sucker rod. The utility model comprises a sucker rod and a coupling which is connected with the sucker rod and is provided with inner screw threads, wherein, the coupling forms a pipe shape, and the middle of the outer wall is provided with spanner planes which are parallel. The sucker rod successively comprises a left fork, a left male thread joint, a compensating groove, a circular bead, a spanner holding part, a left transition region, a rod body, a right transition region, a transition step, a right male thread joint and a right fork, wherein, the left fork and the right fork respectively form a pipe shape, and the pipe wall is provided with a tooth and a gap which are mutually matched. When the utility model is used, the left fork of one sucker rod and the tooth of the right fork of the other sucker rod are respectively inserted into the mutual gaps, and the coupling is made to be connected with the left male thread joint of one sucker rod and the right male thread joint of the other sucker rod. The sucker rod has higher integral anti-fatigue performance; the joints of the sucker rods transmit torque through the teeth which are mutually matched and inserted, and the utility model has better torque resistant property and anti-fastener tripping performance.