Oil pipe hanger for deep well or extra-deep well

• Main Author: ZHU JIAQIANG
• Format: Patent
• Language: English
• Published: 01.04.2015
• 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 an oil pipe hanger for a deep well or an extra-deep well. The oil pipe hanger comprises a main body, wherein a female joint is arranged at the upper end of the main body; a clamping part is communicated with the lower end of the main body; a male joint is arranged on the lower part of the clamping part; a lower hanging shoulder is formed on the exterior of a communication part of the clamping part and the main body; an upper hanging shoulder is arranged on the main body on the upper part of the lower hanging shoulder; a sealing ring slot is formed in the upper part of the main body. The oil pipe hanger for the deep well or the extra-deep well has a simple structure; the problem of difficult upper buckle clamping is solved; the insufficient upper buckle torque is prevented from influencing the connecting strength of an oil pipe joint; the structure is simple, the onsite operation is convenient, and the safe reliability and the service life of a wellhead are obviously increased; the female joint is arranged at the upper end of the oil pipe hanger and the male joint is arranged on the lower part of the oil pipe hanger, so that the problem of difficult connection between the lower end of the present oil pipe hanger and a double-male short joint is solved; the double-male short joint is not required by the structure of the oil pipe hanger, and the oil pipe hanger can be directly connected with an end-product oil pipe.