Wellhead automatic oil production hydraulic control system

• Main Authors: ZHANG JIDE, HE XIAOLONG, ZHANG XIAOLIN, WEI JUNYU, MAO QIANMING, ZHU JUN, YANG YONGHUA, HU YOUGANG, YU XUFAN, HU ZILONG
• Format: Patent
• Language: Chinese; English
• Published: 22.10.2019
• 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

A wellhead automatic oil extraction hydraulic control system comprises a hydraulic control box body, a PLC control system and a hydraulic station, wherein the PLC control system and the hydraulic station are located in the hydraulic control box body. The hydraulic control box body comprises a cabinet body and an energy accumulator fixed to the upper portion of the cabinet body. The hydraulic station comprises a hydraulic oil tank located on the lower portion of the cabinet body, a motor arranged on the hydraulic oil tank, a hydraulic oil pump, a one-way valve and a hydraulic valve seat. The hydraulic valve seat is at least provided with two electromagnetic valves and an unloading valve; the two electromagnetic valves can be connected with a hydraulic control brake and a hydraulic blowout preventer through outlet pipelines respectively, hydraulic pipelines are connected between the hydraulic oil tank and the one-way valve, between the one-way valve and the hydraulic oil pump and betweenthe valve seat and the e