SYSTEMS, METHODS AND APPARATUS FOR DOWNHOLE MONITORING

摘要

A downhole monitoring system and method that includes a sensor system with a sensor array with a number of sensors and a hub. Data measured by the sensors is processed by the hub and wirelessly communicated to a smart node. The sensor system may be mounted in the annulus formed between a borehole wall and an exterior surface of a well casing. The sensors may be configured to monitor the formation for microseismic events generated during hydraulic fracturing. The fracture growth and propagation may be monitored using the data obtained by the sensors. The data may facilitate real time control of the hydraulic fracturing operation.

主权项

1. A downhole monitoring system is provided that comprises:
a sensor system located in an annulus formed between a borehole wall and an exterior surface of a casing, comprising; a sensor array comprising a plurality of sensors; a hub communicatively coupled to the sensor array comprising;
an energy storage;a hub wireless telemetry system;a data processor; a smart node located in the wellbore formed by the casing and comprising;
a smart node wireless telemetry system;a surface telemetry unit communicatively coupled to a surface acquisition unit; and wherein the hub is configured to provide power to the sensor system, process data from the sensors of the sensor array and wirelessly communicate the processed data to the surface acquisition unit via the smart node and the surface telemetry unit.