Abstract
This paper presents the process and results from the applicationof an Integrated Subsurface/Surface Model (Digital Twin) for computing capacity at the country level, or Integrated Capacity Model – ICM, to generate additional revenue through increased gas production from the existing asset facilities.The model is the foundation of the ICM system, a platform that allows ADNOC to evaluate different production scenarios at a field, asset, or country level for operational and planning purposes. The presented case and results are focused specifically on a gas maximization scenario, a very relevant scenario considering the global market tendencies and interest in cleaner provision of energy. The scenario maximizes the gas production of the country while adhering to oil targets and reservoir management guidelines.
Integrated Capacity Model (ICM) is one of ADNOC'sindustry leading technical solution for managing its vast (both in number and size) oil and gas reserves being exploited by thousands of wells and providing stabilized oil and gas to the various export points and processing plants. It is the world's first such large-scale model-based solution. The solution provides several predefined daily runs in an automated manner which can be visualized via an interactive web-based dashboard across the organization. ICM also allows for the configuration of ad-hoc or alternate scenarios to allow for the analysis and evaluation of special operating cases and business plan development. These alternate scenarios address the requirements to evaluate the opportunities and capability of the infrastructure to deliver in exceptional circumstances and for special needs.
This paper presents the configuration details and results of one such scenario. The paper shares the implementation and challenges of maximizing natural gas products across the ADNOCintegrated value chain. This scenario is achieved by setting up a multi-objective optimization function across every asset in theICM model to maximize its gas production while maintaining crude oil targets as required by market and ensuring that well and reservoir management guidelines are honored.
The results of the scenario demonstrate the capability to increase gas production by up to 30% across through the adjustment of the country wide production profile.It is demonstrated that producing a substantial incremental gas volume is possible while honoring any oil targets, particularly in assets with large gas-oil-ratio (GOR) variation. The additional gas availability is achieved through a number of well choke changes, therefore the size of the opportunities in terms of wells and strings can be ranked in such order to balance the practicality with field operations.
