Intelligent water-injection remote control device and method

Abstract

The invention discloses an intelligent water-injection remote control device and method, and the device comprises a remote control system, a well mouth intelligent controller and at least one underground intelligent water distributor. The remote control method comprises the steps: carrying out the setting of the initial parameters of the corresponding underground intelligent water distributor andthe opening time of a digital control water nozzle according to different water-injection layer numbers in a layered water-injection well, the layered distribution quantity and strata pressure data; enabling the underground intelligent water distributor and a water-injection well packer to fall according to the tubular column structure of a water-injection tube, and enabling the underground intelligent water distributor and the water-injection well packer to locate at corresponding layers, and carrying out the pressing and sealing; and enabling the underground intelligent water distributor toexecute the opening operation of the digital control water nozzle for layered flow automatic measurement and adjustment according to the preset opening time of the digital control water nozzle. The device and method can achieve the remote real-time monitoring, improve the layered water-injection qualified rate, effectively obtain the energy change of an oil deposit, and guide the dynamic adjustment of the oil deposit. The underground water distribution device automatically achieves the layered measurement and regulation, the well management and dynamic monitoring of a water injection well, andgreatly reduces the labor intensity of a person and the underground operation risks.

Description

technical field [0001] The invention relates to the technical field of oilfield intelligent layered water injection, in particular to an intelligent water injection remote control device and method. Background technique [0002] Oilfield water injection technology is the most widely used and most economical and efficient oil displacement technology in domestic oilfields, which greatly improves the ultimate oil recovery rate of oilfields and provides reliable technical support for high and stable production of oilfields. However, due to the large difference in the physical properties of oil layers and the large difference in water absorption between layers, in order to alleviate the uneven water absorption of oil layers, domestic oil fields mostly adopt mechanical layered water injection technology and high-efficiency cable measurement and adjustment technology. At present, the commonly used mechanical layered water injection technology mainly includes bridge-type eccentric i...

AI Technical Summary

Problems solved by technology

Although the mechanical layered water injection technology can realize the layered water injection process, there are many human factors in the measurement and adjustment process, and the layered flow cannot be monitored for a long time. At the same time, the measurement and adjustment process of this technology requires mechanical docking, which is difficult for personnel to operate and has great risks in downhole operations. , seriously restricting the layered water injection effect

Images