Reservoir Monitoring

Reservoir monitoring is a routine activity that is carried out during the field’s production phase until its abandonment  . This monitoring is performed by means of data collection and analysis which measure the production and pressure throughout the system, as well as the analysis of extracted fluids. The goal is to identify and correct deviations, and optimize reservoir performance. Some examples of the monitored parameters are: oil, gas, and water flow, fluid production ratios (such as water cut and gas/oil ratio), water breakthrough time, well pressure and reservoir pressure.  

The reservoir’s geological and simulation models are periodically reviewed and adjusted to reproduce the data measured in the field. Diagnoses are elaborated and deviations are corrected, based on the interpretation of the results. These corrections include everything from the simple control of production flow or injection to the need for intervention in wells, the decision to drill new wells, or the alteration of the recovery method in the field. 

In the Atlanta field, fluid measurements will all be done in the FPSO unit, with pressure and temperature measurements taken in different parts of the production system, including permanent sensors installed in the bottom of the well and in the centrifugal submersible pump. In the Manati field,the first pressure tests and fluid measurements are done in the offshore production platform, and are also monitored onshore, at the treatment plant.

Last updated on 2015-04-29T18:33:01

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