The paper presents successful installation of Permanent Downhole Gauges (PDGs) and Distributed Temperature Sensing (DTS) technologies for the first 13 wells, data transmission method of gauges data via mobile network and application used to receive and store the data with visualization software in an Abu Dhabi giant offshore field. As a part of the plans to increase production and reserves recovered from the field, extended reach wells are planned to be drilled off four artificial islands. The project includes a series of oil producer wells along with water injectors. Gas lift will help to sustain the production level after the initial period of natural flow. During the planning phase, it was identified that efficient management of gas lift operations can be achieved through DTS. In addition, 2 single-point pressure and temperature data points from PDGs were to be acquired to assist in reservoir management efforts and calibration of the DTS. The solution provided for each well was to deploy tandem high resolution tubing pressure and temperature gauges run on a hybrid permanent downhole cable containing tubing encapsulated conductor (TEC) plus fiber optics for DTS. The hybrid cable serves as a power and communication line to the gauges installed above the production packer at measured depths varying from 10,000ft to 20,000ft as well as providing distributed temperature measurements across the upper completion through a multi-mode fiber. The temperature data will be used for gas lift operations surveillance and optimization. An additional fiber is installed for distributed acoustic sensing for future well integrity surveillance purposes. As of August 2015, the first 13 wells have been installed successfully in the field with PDGs and Fiber Optic monitoring. The gauge data (pressure and temperature) is planned to be delivered through a GSM network transmission system into the onshore office node at the operator headquarter (HQ). The focus has been on integration of different components of surface system like Data Acquisition Unit, Remote Terminal Unit (RTU), GSM Modem, Virtual Machine (server located in the onshore office) and fully customized Human Machine Interface (HMI) software. The new approach allows for continuous real time monitoring of data at the HQ and taking necessary actions in a timely and efficient manner. Initial stage of project implementation has shown successful results with all PDGs and Fiber Optics operational in all wells and improved execution efficiency of field installation. Well completion designs are planned to continue with the same gauge and fiber optic design for the duration of the field development.
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