Pulse injection device for unblocking and unblocking system

• Main Authors: HAN ZIFU, WANG GUANHUA, SHI XIANYA, HUANG XINJIE, SHI JINGYAN, LI XIANG, XU LIYUAN, LU FEIXIANG, DUAN KAIBIN
• Format: Patent
• Language: Chinese; English
• Published: 16.07.2021
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention discloses a pulse injection device for an unblocking and an unblocking system. The pulse injection device is arranged at a well mouth and comprises a valve body capable of being opened and closed and a power assembly. The valve body comprises a valve seat and a valve element, a flow passing channel is formed in the valve seat, the valve element is arranged to be inserted into the valve seat to seal the flow passing channel, and a liquid inlet and a liquid outlet in the two ends of the flow passing channel are connected with pipelines correspondingly. The power assembly is fixed to the valve seat, and the output end of the power assembly is connected with the valve element and used for driving the valve element to be inserted into or pulled out of the flow passing channel. The unblocking system comprises a pipeline capable of entering a well, the pulse injection device and a controller, the pulse injection device is arranged at the well mouth, the valve seat communicates with the pipelines so as