Oil field water injection device and water injection method

• Main Authors: SUN SHIPING, ZHANG WENHUI, CHEN WENSHENG, PENG ZILONG, ZHENG YIYUE, SUN-JUN YIXIONG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; CONTROLLING; 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; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention relates to an oilfield water injection device and a water injection method and belongs to the technical field of oil and gas exploitation. The water injection device consists of a control valve, an actuator and a central processing center, wherein the actuator is mounted on the control valve; the central processing center is composed of a controller, a flow sensor arranged at an inlet of the control valve, a pressure sensor arranged on the underground water injection pipeline and an input and output system. The water injection device and the water injection method can automatically detect the pressure of the well site, detect the water injection requirement of the oil production well site by comparing with the external pressure, and realize the relative balance of the pressure of the water injection well site through automatic control; network direct time service is achieved through network connection, the system is controlled by the internet of things of an oil production well site, the water i