Deviation-adjusting and inclination-adjusting combined structure for wellhead polish rod

• Main Authors: GAO CHONG, ZHOU FANGHAO, ZHENG CAIFANG, ZHOU ZIMENG, ZHOU ZIYAN
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• 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 relates to the technical field of oil production well oil extraction auxiliary equipment, in particular to a wellhead polish rod deviation adjusting combination structure which comprises a universal ball, a ball seat and a ball gland, the universal ball comprises a cylindrical section and a ball section, a through hole is formed in the cylindrical section in the axial direction, a through hole is also formed in the ball section in the axial direction, and the ball gland is arranged in the ball seat. A penetrating through hole in the cylindrical section is communicated with a penetrating through hole in the ball section, a certain distance e is reserved between the center line of the penetrating through hole in the cylindrical section and the center line of the penetrating through hole in the ball section, a bowl-shaped groove is formed in the upper end of the ball seat, the lower half portion of the ball section is located in the bowl-shaped groove of the ball seat, and a through hole is for