Air-tight seal heat insulation pipe with port protection function

• Main Authors: QU HONGXING, JIA WUJIANG, WANG PENG, PAN XIAOJIE, NI SHUTONG, WANG KAI, DU RENZHI, GAI SHASHA, SHEN JUNFANG, YAO YONGJIA
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• 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 invention provides an air-tight seal heat insulation pipe with a port protection function, and relates to the technical field of oil field heat insulation pipes. An air-tight seal heat insulation pipe with a port protection function comprises casing pipes distributed at equal intervals, internal threads are arranged on the lower sides of the casing pipes, external threads are arranged on the upper sides of the casing pipes, the internal threads and the external threads of every two adjacent casing pipes are matched in a threaded mode, a sealing ring is arranged between every two adjacent casing pipes, and a sealing ring is arranged between every two adjacent casing pipes. A top ring is fixedly connected to the lower side of the outer ring face of the sleeve, fixing plates distributed at equal intervals in the circumferential direction are fixedly connected to the top ring, a bottom ring is fixedly connected to the sides, away from the top ring, of the fixing plates distributed at equal intervals in the ci