Reservoir Engineering I PDF Jan 2025

1/7/2025 Reservoir Engineering I, Jan. Sem. 2025 Open 1 Presentation Outline 1. Lesson Outcomes Reservoir Enginee...

1/7/2025 Reservoir Engineering I, Jan. Sem. 2025 Open 1 Presentation Outline 1. Lesson Outcomes Reservoir Engineering I, Jan. Sem. 2025 2. Activities in Reservoir Engineering 3. Roles of Reservoir Engineers 4. Technical Responsibilities of Reservoir Engineers 5. Physical Principles of Reservoir Engineering 6. Summary 7. What are we going to learn in next lecture? Open 2 2 Open 1  1/7/2025 Lecture Outcomes students should be able to: Reservoir Engineering I, Jan. Sem. 2025 1. list the activities involve in reservoir engineering. 2. describe the role of reservoir engineers. 3. list the technical responsibilities of reservoir engineers. 4. comprehend the physical principles of reservoir engineering. Open 3 3 Introduction Reservoir Engineering I, Jan. Sem. 2025 Open 4 4 Open 2  1/7/2025 What Is Reservoir? A reservoir is formed of one (or more) subsurface rock formations containing Reservoir Engineering I, Jan. Sem. 2025 liquid and/or gaseous hydrocarbons. The reservoir rock is porous and permeable, and the structure is bounded by impermeable barriers which trap the hydrocarbons. The vertical arrangement of the fluids in the structure is governed by gravitational forces. A cross‐section of a typical hydrocarbon reservoir (classic anticline). 5 5 What is Reservoir Engineering? A. Reservoir engineering is a crucial aspect of the oil and Reservoir Engineering I, Jan. Sem. 2025 gas industry that involves the study of subsurface reservoirs to optimize the recovery of hydrocarbons. B. It encompasses various disciplines such as geology, physics, mathematics, and chemistry to understand the behavior of fluids in porous media. B. Reservoir engineers use their expertise to predict the performance of oil and gas reservoirs and design strategies to maximize their production. Open 6 6 Open 3  1/7/2025 What is Reservoir Engineering?  Reservoir engineering plays a critical role in the oil and gas industry, providing valuable insights into the behavior of subsurface reservoirs and helping to maximize the recovery of hydrocarbons. By understanding the principles of Reservoir Engineering I, Jan. Sem. 2025 reservoir engineering, we can make informed decisions that ensure the long-term sustainability and profitability of oil and gas fields. Understanding the Is key to ensuring the long‐term characteristics of a reservoir sustainability Technique used to simulate the EOR techniques are used to behavior of fluids in the reservoir increase the amount of oil that can be recovered It's important to carry out tests to determine its production Open potential 7 7 The Importance of Reservoir Engineering The importance of reservoir engineering cannot be overstated in the context of the global energy landscape. As the demand for hydrocarbons persists, reservoir engineers serve as the architects of sustainable resource extraction. Reservoir Engineering I, Jan. Sem. 2025 Resource Maximisation Technological Advancements Energy Security Environmental Considerations Economic Impact Open https://holistiquetraining.com/en/news/reservoir‐engineering‐is‐it‐a‐good‐career‐choice 8 8 Open 4  1/7/2025 The Role of Reservoir Engineering in Oilfield Evaluation 1. Estimating Reserves: estimate the amount of recoverable hydrocarbons present in a reservoir. They consider factors such as porosity, permeability, fluid Reservoir Engineering I, Jan. Sem. 2025 properties, and pressure data to determine the volume of oil or gas that can be extracted economically. 2. Predicting Production Rates: Reservoir engineers utilize advanced simulation models to predict future production rates from an oilfield. 3. Assessing Economic Viability: By considering factors such as capital expenditure, operating costs, commodity prices, and discount rates, reservoir engineers can perform economic analyses to determine the net present value (NPV) and profitability index (PI) of an oilfield. Open 9 9 The Role of Reservoir Engineering in Oil and Gas Industry Reservoir Engineering I, Jan. Sem. 2025 10 10 Open 5  1/7/2025 The Role of Reservoir Simulation Reservoir Engineering I, Jan. Sem. 2025 Open 11 11 Reservoir Engineering Evaluation Methods 1. These methods use mathematical equations and models to describe the fluid flow and pressure behavior in the reservoir. 2. These methods use statistical correlations and empirical formulas Reservoir Engineering I, Jan. Sem. 2025 derived from historical data and field observations. 3. These methods use laboratory tests and measurements to obtain physical and chemical properties of the reservoir fluids and rocks. 12 12 Open 6  1/7/2025 Future of Reservoir Engineering Reservoir Engineering I, Jan. Sem. 2025 Open 13 13 Activities in Reservoir Engineering Observations include the geological model, the drilling of wells and the data acquired in each: cores, logs, tests, fluid samples. Reservoir Engineering I, Jan. Sem. 2025 Assumptions can usually be confirmed only by observation (not calculation). Calculations physical conditions has been defined (assumed) then calculations are an absolute must. Development Decisions every action contemplated, planned and executed by reservoir engineers must lead to some form of development decision. Calculations entirely dependent on the nature of the assumptions made as is the development decisions rely on the results of the calculations. Open 14 14 Open 7  1/7/2025 Common Technical Activities 1) Reserve estimation How much recoverable (recovery factor) How long to recover (time scale) Reservoir Engineering I, Jan. Sem. 2025 2) Development of a flow model geological data, rock and fluid property measurements and past performance characteristics. 3) Identify reservoir drive mechanisms. 4) Estimation of hydrocarbons in place. 5) Development planning and strategy. perforation interval, maximum production rate, number of well of wells and well placement, etc.. 6) The development of a production profile. 7) Making decision on reservoir management and surveillance. 8) Development of processes and methods for improved recovery of hydrocarbons. 9) Design and analysis of new and advanced processes for enhanced oil recovery. Open 15 15 Common Technical Activities Integration with other areas Reservoir Engineering I, Jan. Sem. 2025 Open 16 16 Open 8  1/7/2025 A “good” reservoir engineer should…  How much oil is there? Reservoir Engineering I, Jan. Sem. 2025  Where is the oil in the formation?  How difficult is it to recover?  How much can we recover?  How should we recover?  How fast? This has implications on :‐  Money  Reservoir damage  Facilities requirements  Facilities breakdown  Abandonment 17 17 A “good” reservoir engineer should…  have an understanding of the geology and geological Reservoir Engineering I, Jan. Sem. 2025 processes.  familiar with fluid mechanics principles and mathematical methods which required for solving flow problems.  have broad engineering skills.  MOST IMPORTANTLY be open to apply technology borrowed from other areas of engineering and scientific activity. 18 18 Open 9  1/7/2025 Physical Principles of Reservoir Engineering For conventional oil and gas, most of the reservoir engineering principles requires the application of the following physical principles Reservoir Engineering I, Jan. Sem. 2025 Conservation of Darcy’s Law Mass Newton’s Second Isothermal and Third Law Compressibility of Motion 19 19 Typical Oilfield Production Profile Reservoir Engineering I, Jan. Sem. 2025 20 20 Open 10