Sliding sleeve communicating vessel of oil field water injection well

• Main Authors: LI ZHAOYONG, LIN JIANGANG
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2020
• 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 belongs to the technical field of oil field underground equipment, and particularly relates to a sliding sleeve communicating vessel of an oil field water injection well. The main technical scheme is as follows: the method comprises the following steps; wherein the upper connector, the central pipe and the lower connector are sequentially connected in a sealed mode. A pressure-bearing on-off structure consisting of a cylinder body pipe and a sealing piston is arranged in the central pipe; wherein a first hole and a second hole are formed in a pipe body of the central pipe anda pipe body of the cylinder body pipe respectively, the sealing piston is positioned with the cylinder body pipe through a pressure-bearing pin and then blocks the first hole and the second hole, andthe sealing piston is provided with a reset spring which is used for pushing the sealing piston to move to enable the first hole to be communicated with the second hole. The sliding sleeve communicating vessel not only can re