Spraying self-propelled multi-branch slim-hole completing tool and operation method

• Main Authors: SHAO MINGREN, LIU CHUANGANG, WANG LIJUN, WANG XIAO, ZHANG YUNCHI, WANG SHIQIANG, MA YINGWEN, XING HONGXIAN
• Format: Patent
• Language: Chinese; English
• Published: 02.11.2018
• 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 discloses a spraying self-propelled multi-branch slim-hole completing tool. The tool comprises a spraying short joint connected with the lower end of a completing pipe string, a liner pipe in sealed connection with the spraying short joint is arranged inside the spraying short joint, a...