Polymer injection device

• Main Authors: TIAN GENG, CAI KAIHUA, ZHANG YONGLI, LYU YINGZHU
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• 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 relates to the technical field of oil field polymer injection, in particular to a polymer injector. The polymer injection device comprises a polymer injection main body and a throttling part. The polymer injection body is provided with an upper opening and a hollow inner cavity which are communicated, polymer is injected into the hollow inner cavity from the opening, the polymer injection body is provided with a throttling channel in the axial direction of the polymer injection body, and the throttling channel and the hollow inner cavity are arranged in a spaced mode. The throttling part is arranged in the throttling channel, the throttling part is connected with the polymer injection main body, the throttling part comprises a throttling core and a flow passing pipe, the flow passing pipe is arranged in the throttling channel, the outer contour size of the flow passing pipe is gradually increased in the direction close to the opening, the throttling core is arranged in the flow passing pipe,