Expansion, suspension and pre-filling screen pipe integrated pipe column

• Main Authors: LAN XITANG, FU YANGYANG, ZHANG LIPING, DAI LEIYANG, PAN DINGCHENG, MOU MEI, JING JIYUN, GAO SHANG, WANG ZIQUAN, LI QIAN
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• 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 expansion suspension pre-filling screen pipe integrated pipe column which comprises a hydraulic power system, a connecting assembly, an expansion suspension mechanism and a releasing mechanism. The connecting assembly comprises a connecting pipe connected with the hydraulic rod, one end of the connecting pipe is provided with an expansion sleeve, and the other end is provided with a releasing mechanism and an extrusion ring; the expansion suspension mechanism comprises an expansion pipe, a suspension pipe and an expansion cone, the expansion pipe comprises an inner pipe and an outer pipe which are sleeved inside and outside, and a sand control screen pipe is arranged between the inner pipe and the outer pipe; the hanging pipe is connected with the inner pipe; the expansion cone comprises an upper cone and a lower cone which are respectively inserted into gaps between the two ends of the inner pipe and the outer pipe; the releasing mechanism comprises an inner sleeve and a limiti