Gas-liquid two-phase layered injection working barrel

• Main Authors: MA XICHAO, XUE DEDONG, ZHANG LEI, ZHANG LUNWEI, KOU LEI, DING DEJI, ZHENG LINGYUN, ZHENG CHUNFENG
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2023
• 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 invention discloses a gas-liquid two-phase layered injection working barrel. An axial center cavity is formed in an outer cylinder; the inner cylinder is axially and movably arranged in the central cavity, and the outer circumference of the inner cylinder is matched with the inner circumference of the outer cylinder; the inner cylinder gas-liquid outlet is formed in the middle of the inner cylinder; the inner cylinder gas phase adjusting tank is arranged on the outer wall of the inner cylinder along the length direction and is positioned right above the inner cylinder gas-liquid outlet; the gas-liquid separation channel is arranged on the side wall of the outer cylinder, and the lower end of the gas-liquid separation channel is communicated with the gas-liquid outlet of the inner cylinder; the gas phase channel is radially arranged on the outer cylinder and is positioned above the gas-liquid separation channel; the liquid phase outlet is radially formed in the outer wall of the lower part of the gas-liqui