Automatic oil tube elevator

• Main Authors: SONG JICHENG, TIAN SHENGMIN, KANG SHIBIN, TANG TIANGUO, LIU AIMIN, LI XIANKUI, HUO YANLI, ZHAO JIANQIANG, GUO JIE
• Format: Patent
• Language: Chinese; English
• Published: 23.03.2011
• 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 automatic oil tube elevator, comprising an elevator main body, a hollow cavity in the center of the elevator main body with an isoscedes trapezoid shaped longitudinal section, a semi-circle spider 1,2 symmetrically arranged on the upper end of the elevator main body, wherein the semi-circle spider 1 is arranged at the left side of the elevator main body and the semi-circle spider 2 in same size with the semi-circle spider 1 is arranged at the right side of the elevator main body, the inner diameter Phi 1 of the semi-circle spiders 1,2 is larger than the outer diameter of the oil tube and smaller than the outer diameter of the oil tube holder and the semi-circle spiders 1,2 are rotatably connected with the elevator main body. The structure design is reasonable, the use is convenient and the automatic oil tube elevator is mounted at one time when pulling out the oil tube and during the full process of drawing the oil tube, frequent disassembly and assembly is not necessary and aut