Pressure-flow dual-carrier underground and ground communication device

Abstract

The invention discloses a pressure-flow dual-carrier underground and ground communication device which comprises a remote controller, a ground master controller, an auxiliary controller and an underground controller, wherein the ground master controller and the remote controller establish a connection through a wireless communication mode; the ground master controller and the auxiliary controllerare connected by an electric wire to realize information transmission and also are connected by a high-pressure pipeline to realize connection with a pressure system; the ground master controller andthe underground controller are connected by another high-pressure pipeline to realize connection with the pressure system and finish a water injection process. The underground controller is adopted toperform underground automatic control, automatic adjustment of hierarchical flow is realized, the hierarchical underground pressure is monitored in real time and recorded in a long term, and remote real-time monitoring of hierarchical water injection is realized so as to get the dynamic state of petroleum reservoir exploitation and improve the qualified rate of hierarchical water injection.

Description

technical field [0001] The invention belongs to the technical field of oilfield water injection, and in particular relates to a downhole and surface communication device with dual-carrier pressure and flow rate. Background technique [0002] Water injection is one of the most effective methods to replenish formation energy and enhance oil recovery in oilfields. In order to effectively solve the differences between layers and layers, oilfields use layered water injection technology to achieve balanced injection-production development. The conventional water injection process has a large manual test workload and complicated manual operations, and cannot monitor the dynamic data such as downhole stratification pressure, stratification water injection volume, temperature and other dynamic data in real time, and cannot timely adjust the stratification development dynamics and improve the reservoir development effect. Although the commonly used stratified water distributor can re...

AI Technical Summary

Problems solved by technology

The conventional water injection process has a large manual test workload and complicated manual operations, and cannot monitor the dynamic data such as downhole stratification pressure, stratification water injection volume, temperature and other dynamic data in real time, and cannot timely adjust the stratification development dynamics and improve the reservoir development effect. Although the commonly used layered water distributor can realize the layered water injection process, there are problems such as complicated construction, difficult measurement and adjustment, and poor layered water injection effect.

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