Tool for verifying integrity performance of underground tubular column

• Main Authors: ZHUANG BENZUO, WEI JINGWEI, ZHANG SHUNZENG, LIU BUFENG, ZHAO GUIJING, XU HAIBO, ZHAO GUIGANG, LI FENGLING, ZHANG JUNTAO
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• 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 tool is provided with an upper connector and a drift size gauge tool, a sealing rubber sleeve is installed outside an upper center pipe, a pressing cap and a supporting cone are connected to the positions, at the upper end and the lower end of the sealing rubber sleeve, outside the upper center pipe, and the supporting cone can move up and down along the upper center pipe; the supporting slip, the push cylinder and the spring seat are sequentially mounted outside the central pipe below the supporting cone from top to bottom, the supporting body is fixed outside the central pipe and mounted in the push cylinder, the supporting slip is connected with the push cylinder and can be hung on the supporting body, the reset spring is mounted between the supporting body and the spring seat, and a pressure transmitting hole is formed in the central pipe. By means of the tool, the construction effect which can be achieved through multiple procedures can be achieved only by tripping in a tubular column once, the multi