Weight-increasing type anti-corrosion polish rod

• Main Authors: DONG WEIWEI, HOU XIKANG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2024
• 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 a weighting type anti-corrosion polish rod, which relates to the technical field of oil pumping units and comprises a packing box, an underground pump pipe is arranged below the packing box through a fastening bolt, a polish rod penetrates through the middle of the packing box and is slidably connected with the packing box, a fixing ring is fixedly arranged at the top of the polish rod, and the packing box is connected with the polish rod through a fastening bolt. The fixing ring is provided with a beam hanger and penetrates through the fixing ring, an inclined support is fixedly arranged on the outer edge of the packing box, soil is arranged below the inclined support, a first limiting disc is arranged on the top of the inclined support, and the polish rod penetrates through the first limiting disc and is in sliding connection with the first limiting disc. The polish rod and the packing box are sealed through the sealing device in the packing box, and the polished rod hanger plays