Oil sleeve joint and oil sleeve assembly

• Main Authors: HU ZHILI, HUANG DIANYUAN, FU QIANG, LI JIANLIANG, ZHANG CHUIGUI, RAN XUEHUI, LI XIAOBING, LI JIAN, TIAN YAN, HU XINTAI, WU DAN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2022
• 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 provides an oil sleeve joint and an oil sleeve assembly. The oil casing joint comprises an external thread joint; the internal thread joint is in threaded connection with the external thread joint; a thread structure, a first groove, a sealing structure, a second groove and a shoulder structure are sequentially arranged between the external thread connector and the internal thread connector in the direction parallel to the axis of the oil sleeve connector, and the sealing structure comprises a first sealing conical surface and a second sealing conical surface in sealing fit with part of the first sealing conical surface. The first sealing conical surface is arranged on a part of the outer wall surface of the external thread joint, and the second sealing conical surface is arranged on a part of the inner wall surface of the internal thread joint. In the technical scheme of the utility model, the oil sleeve joint has excellent sealing stability and compression resistance under the action of co