RESERVOIRS.
Table of Contents
1. Overview of Groundwater Systems and Hydrocarbon Reservoirs ......................................... 5
1.1. Groundwater Systems ...................................................................................................... 5
1.1.1. Basics of Groundwater .............................................................................................. 5
1.1.2. Groundwater Flow .................................................................................................... 6
1.2. Hydrocarbon Reservoirs ................................................................................................... 6
1.2.1. Formation of Hydrocarbons ...................................................................................... 6
1.2.2. Reservoir Characteristics .......................................................................................... 7
2. Interaction Between Groundwater and Hydrocarbon Reservoirs ........................................... 9
2.1. Hydrological Influence on Hydrocarbon Migration......................................................... 9
2.1.1. Role of Groundwater Flow ....................................................................................... 9
2.1.2. Aquifer Properties ................................................................................................... 10
2.2. Effects of Hydrocarbon Extraction on Groundwater ..................................................... 10
2.2.1. Alteration of Groundwater Flow Patterns ............................................................... 10
2.2.2. Potential for Contamination .................................................................................... 11
2.3. Sustainable Practices and Mitigation Strategies............................................................. 12
2.3.1. Groundwater Monitoring ........................................................................................ 12
1|Page
, 2.3.2. Advanced Drilling Techniques ............................................................................... 12
2.3.3. Produced Water Management ................................................................................. 13
2.3.4. Regulatory Compliance .......................................................................................... 13
2.3.5. Public and Stakeholder Engagement ...................................................................... 13
3. Sustainable Petroleum Extraction ......................................................................................... 14
3.1. Technological Advances ................................................................................................ 14
3.1.1. Innovations in Drilling Techniques ........................................................................ 14
3.1.2. Use of Geophysical Methods .................................................................................. 15
3.1.3. Best Practices .......................................................................................................... 16
4. Environmental Impacts of Drilling ....................................................................................... 19
4.1. Groundwater Contamination .......................................................................................... 19
4.1.1. Sources of Contamination ....................................................................................... 19
4.2. Ecosystem Disruption .................................................................................................... 25
4.2.1. Surface Water Contamination: ................................................................................ 26
4.2.2. Habitat Destruction: ................................................................................................ 26
4.2.3. Noise and Light Pollution: ...................................................................................... 26
4.2.4. Air Pollution: .......................................................................................................... 26
4.3. Mitigation Strategies to Protect Natural Habitats .......................................................... 27
2|Page
, 4.3.1. Environmental Impact Assessments (EIAs): .......................................................... 27
4.3.2. Best Management Practices (BMPs): ..................................................................... 27
4.3.3. Habitat Restoration: ................................................................................................ 27
4.3.4. Buffer Zones: .......................................................................................................... 27
4.4. Regulatory Framework ................................................................................................... 27
4.4.1. Examples of Regulations Governing Drilling Activities and Groundwater
Protection from all around the world. ................................................................................... 28
4.4.2. Importance of Compliance and Continuous Monitoring ........................................ 32
5. Water Management in Oil and Gas Fields ............................................................................ 34
5.1. Produced Water Handling .............................................................................................. 34
5.1.1. Physical Treatment: ................................................................................................ 34
5.1.2. Chemical Treatment: ............................................................................................... 34
5.1.3. Biological Treatment: ............................................................................................. 35
5.1.4. Desalination and Advanced Purification Technologies: ......................................... 35
5.1.5. Disposal Methods: .................................................................................................. 36
5.2. Water Use in Hydraulic Fracturing ................................................................................ 36
5.2.1. Quantifying Water Needs for Fracking Operations ................................................ 36
5.2.2. Techniques for Minimizing Freshwater Use and Maximizing Efficiency.............. 37
5.2.3. Integrated Water Resources Management (IWRM) ............................................... 38
3|Page
, 6. Summary: .............................................................................................................................. 40
4|Page