Intelligent System for Start-Up and Anti-Slug Control of a Petroleum Offshore Platform

Abstract

It is difficult to control and to manage wells’ start-up in offshore platforms. In order to solve this problem an intelligent system can play an important role, since available qualitative operator and design knowledge can be easily implemented to assist the operator during wells’ start-up. This paper describes the integration of an expert system associated with anti-slug control for well start-up. The intelligent system has many heuristic rules to implement the automation of the start-up procedures, like the opening choke valve while simultaneously respecting many constraints. Severe slugging flow regimes are one of the major disturbances for the operation of offshore production platforms, and can cause many unplanned shutdowns. Therefore, it’s important to combine start-up intelligent system with an anti-slug advanced control module for each well. The benefits are associated to reducing possibility of unplanned shutdowns during well start-up operational procedures, decreasing operators’ stress and also helping to minimizing impacts to the environment. A prototype was implemented in one platform with good results for a safe and efficient wells start-up procedure. This paper will present the development and results of this intelligent system for wells’ start-up and anti-slug control for offshore platforms.

Modeling, Simulation and Control of Shell and Tube Heat Exchanger of Brazilian Pre-Sal Fpso

“…The technological challenges for oil exploration in ultra-deep waters, the Brazilian pre-salt, permeate conventional exploration and production techniques, Chaves (2018). According to Campos et al (2017), environments that present extreme situations of temperature, pressure and the presence of contaminants, such as CO2, require new approaches to enable production with reference efficiencies for the processes, thus justifying studies on the equipment used to process this oil.…”