Abstract
This study proposes an enhancement to the injection allocation method in Golfo San Jorge aimed at increasing the accuracy of injected flow rate measurements during secondary oil recovery, with the objective of reducing the number of flowmeter interventions in the field.
Two new correction factors are introduced in the calculation of injection allocation, which consider the stabilization of the injector well after an intervention with wireline or workover equipment, as well as the measurement obtained from the flowmeter associated with the well or an external flowmeter. The analysis involved comparing data from 112 injection wells across various databases, particularly using data from Wireline and Flowmetry, supported by a telemetry system that provides telemetered field data.
The incorporation of these new correction factors has significantly improved injection allocation and reduced the need for interventions on flowmeters by 68% within a group of 112 injection wells. This improvement stems from mitigating errors associated with previously unconsidered variables, such as pressure and flow stabilization in injection wells post-wireline intervention.
The innovation of this project lies in demonstrating that by challenging and improving current calculations and procedures, it is possible to optimize a process and reduce costs by efficiently utilizing existing resources. In this study, field telemetry flow data was used, and new correction factors were proposed to obtain actual flow rates that account for the real behavior of the injection well post-wireline intervention.
