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How can you ensure reservoir operations are safe and secure during performance analysis?

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Reservoir operations are critical for optimizing oil and gas production and maximizing recovery. However, they also involve various risks and challenges, such as reservoir depletion, pressure decline, fluid flow, well integrity, and environmental impacts. Therefore, it is essential to conduct regular and reliable performance analysis to monitor, evaluate, and improve reservoir operations. In this article, you will learn how to ensure reservoir operations are safe and secure during performance analysis, using some best practices and tools.

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Sushant Rastogi

Energy Transition & Utilities Industry Platform | Consulting & Sales Strategy |CXO Strategy| Advisory | Business…

1 Define objectives and scope

The first step to ensure reservoir operations are safe and secure during performance analysis is to define the objectives and scope of the analysis. This will help you to identify the key performance indicators (KPIs), data sources, methods, and criteria for the analysis. For example, you may want to analyze the reservoir performance in terms of production rates, recovery factors, decline curves, reserves, or profitability. You may also want to compare different scenarios, such as base case, optimization, or contingency. By defining the objectives and scope, you can focus on the relevant aspects of reservoir operations and avoid unnecessary or misleading analysis.

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Sushant Rastogi

Energy Transition & Utilities Industry Platform | Consulting & Sales Strategy |CXO Strategy| Advisory | Business Development | Energy Transition | Decarbonization | CCUS | OSDU | Sustainability | Oil & Gas | Utilities |
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Utilizing sophisticated data analytics, including machine learning algorithms, enables the anticipation of reservoir behavior and detection of safety issues such as subsurface pressure anomalies or fluid migration. Additionally, the integration of cybersecurity measures within data management systems safeguards against unauthorized access and breaches. Through the delineation of precise objectives and scope, operators can take proactive measures to tackle safety and security challenges in reservoir operations, all while enhancing performance optimization.

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Ashwith Kyatham

Senior Reservoir Engineer at ONGC
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Reservoir operations mainly include limited scope of work. Bean study, Build Up, Drawdown, Isochronal, Modified Isochronal, Influx study etc are some of the activities that you plan. Depending on the scope/time when the operation is being carried out, you have your objectives set. Reservoir being safe has nothing to do with the objectives we have in future. It simply is a safety hazard that we need to be careful about. That’s it.

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Rodrigo Barbosa Gon?alves

Engenharia de Petróleo | ESG | Empreendedorismo Social & Inova??o | ODS | Transi??o Energética
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By leveraging sophisticated data analytics and integrating cybersecurity measures, operators can ensure that reservoir operations are secure and efficient. Precisely defining objectives and the scope of analysis enables anticipation of security issues and proactive measures to address these challenges, contributing to optimizing reservoir operations performance.

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2 Collect and validate data

The next step is to collect and validate the data needed for the performance analysis. Data can come from various sources, such as reservoir models, well tests, production logs, seismic surveys, or laboratory experiments. However, not all data are reliable, accurate, or consistent. Therefore, you need to validate the data by checking their quality, completeness, and compatibility. You can use data quality control (QC) tools, such as statistical analysis, error detection, or outlier removal, to ensure the data are valid and trustworthy. You can also use data integration tools, such as data reconciliation, interpolation, or extrapolation, to fill the gaps or resolve the conflicts in the data.

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Sushant Rastogi

Energy Transition & Utilities Industry Platform | Consulting & Sales Strategy |CXO Strategy| Advisory | Business Development | Energy Transition | Decarbonization | CCUS | OSDU | Sustainability | Oil & Gas | Utilities |
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Operators ensure the accuracy of well data by validating sensor and instrument calibration for precise measurements of pressure and temperature. Similarly, seismic data undergoes rigorous quality checks to verify imaging integrity, minimizing the risk of misinterpretations that could affect operational decisions. Through meticulous data collection and validation, operators gain confidence in the reliability of information, empowering them to make informed decisions. Consequently, this enhances the safety and security of reservoir operations during performance analysis.

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3 Apply methods and tools

The third step is to apply the appropriate methods and tools for the performance analysis. Depending on the objectives and scope of the analysis, you can use different methods and tools, such as analytical models, numerical simulations, empirical correlations, or graphical techniques. For example, you can use material balance equations, decline curve analysis, or type curves to estimate the reservoir parameters, such as original oil in place (OOIP), reservoir pressure, or decline rate. You can also use reservoir simulation software, such as Eclipse, Petrel, or CMG, to model the fluid flow and reservoir behavior under different conditions. You should choose the methods and tools that suit your data availability, complexity, and accuracy requirements.

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Sushant Rastogi

Energy Transition & Utilities Industry Platform | Consulting & Sales Strategy |CXO Strategy| Advisory | Business Development | Energy Transition | Decarbonization | CCUS | OSDU | Sustainability | Oil & Gas | Utilities |
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One method is implementing real-time monitoring systems that continuously track parameters such as pressure, temperature, and flow rates. Tools like SCADA (Supervisory Control and Data Acquisition) systems enable operators to monitor operations remotely and detect abnormalities promptly. Employing risk assessment methodologies such as HAZOP (Hazard and Operability Study) identifies potential hazards and their mitigation measures. Through these methods and tools, operators can proactively manage risks, enhance operational safety, and ensure the security of reservoir operations during performance analysis.

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4 Interpret and communicate results

The final step is to interpret and communicate the results of the performance analysis. This will help you to understand the current status and future potential of reservoir operations, as well as to identify the opportunities and challenges for improvement. You should interpret the results by comparing them with the objectives and scope of the analysis, as well as with the historical trends, industry benchmarks, or best practices. You should also communicate the results by using clear and concise reports, charts, maps, or presentations. You should highlight the key findings, insights, and recommendations from the performance analysis, as well as the uncertainties and limitations.

By following these steps, you can ensure reservoir operations are safe and secure during performance analysis. This will help you to optimize reservoir performance and decline analysis, as well as to enhance reservoir management and decision making.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How can you ensure reservoir operations are safe and secure during performance analysis?

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3

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1 Define objectives and scope

2 Collect and validate data

3 Apply methods and tools

4 Interpret and communicate results

5 Here’s what else to consider

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