tight Gas reservoir
The document outlines the characteristics and considerations involved in tight reservoirs, including geologic factors, drilling techniques, and logging methods used to assess reservoir properties. It also discusses production techniques like hydraulic fracturing and the challenges and solutions related to tight oil production. Additionally, it provides references for further study on the topic of unconventional gas resources.
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tight Gas reservoir
- 1. Hassan Z. Harraz [email protected] Spring2018 @Hassan Harraz 2018 tight reservoir@Hassan Harraz 2018 tight reservoir 1
- 2. OUTLINE LECTURE 1) INTRODUCTION 1.1)Principle Types of Tight Reservoir 2) CHARACTERISTIC OF TIGHT RESERVOIR 3) FACTORS TO CONSIDER FOR TIGHT RESERVOIR: 3.1) Geologic Considerations 3.2) Reservoir Continuity 3.3) Reservoir Considerations 3.4) Drilling and Completion Considerations 4) LOGGING IN TIGHT RESERVOIR: 4.1) Spontaneous potential log 4.2) NMR log 4.3) Resistivity log 4.5) Gamma ray log 4.6) Image log @Hassan Harraz 2018 tight reservoir 2 5) FORMATION EVALUATION 6) TECHNIQUES TO PRODUCE FROM TIGHT RESERVOIR 6.1) Light Tight Oil (LTO) Recovery 6.2)Hydraulic Fracturing 6.2.1) Process of hydraulic fracturing 6.2.2) Process of hydraulic fracturing 6.2.3) Horizontal drilling 7) TIGHT OIL CHALLENGES 8) TIGHT OIL SOLUTIONS 9) WORLD ESTIMATE 9.1) Global Scenario What is tight reservoir? To Understanding Tight Oil
- 3. 1) INTRODUCTION What istight reservoir?
- 4. Reservoir Quality: The0.1 mD Myth @Hassan Harraz 2018 tight reservoir 4
- 5. 2) Principle Typesof Tight Gas Reservoir
- 6. An illustration oftight gas compared to other types of gas deposits. @Hassan Harraz 2018 tight reservoir 6
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- 8. 2) CHARACTERISTIC OFTIGHT RESERVOIR
- 9. 3) FACTORS TO CONSIDERFOR TIGHT RESERVOIR @Hassan Harraz 2018 tight reservoir 9
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- 12. 3.3) Reservoir Considerations Normally,a tight reservoir can be described as a layered system. In a clastic depositional system, the layers are composed of: Sandstone Siltstone Mudstone Shale In non clastic systems, layers are composed of: Limestone Dolomite Possibly halite or anhydrite The following data are required to use 3D reservoir and fracture propagation models to evaluate the formation, design the fracture treatment, and forecast production rates and ultimate recovery: Gross pay thickness Net pay thickness Permeability Porosity Water saturation Pressure In-situ stress Young’s modulus The speed at which pressure transients move through porous media is a function of the: Formation permeability Fluid viscosity Fluid compressibility @Hassan Harraz 2018 tight reservoir 12
- 13. 3.4) Drilling andCompletion Considerations
- 14. 4) LOGGING INTIGHT RESERVOIR Logging is the important process in the petroleum sector. Logging is important to find the hydrocarbon in to the reservoir and find the lithology below the earth surface. Factors identified by Logging in tight reservoir: 1)Location of the tight reservoir 2)Lithology 3)Natural fracture 4)Permeability 5)Porosity 6)Tightness Different type of logs are used in tight reservoir to find its characteristics Types of Logs: 1)SP (spontaneous potential) 2)NMR (nuclear magnetic resonance) 3)Resistivity 4)Neutron porosity and density log 5)Gamma ray log 6)Image @Hassan Harraz 2018 tight reservoir 14
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- 16. • Across thetight reservoir, the current flowing in the mud is constant, so the potential gradient is uniform. @Hassan Harraz 2018 tight reservoir 16
- 17. 4.3) Resistivity log: 4.4)Neutron porosity and density log 4.5) Gamma ray log 4.2) NMR log
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- 20. 6) TECHNIQUES TOPRODUCE FROM TIGHT RESERVOIR:
- 21. 6.2) Tight GasSolutions
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- 23. Holditch SA(2006): “Tight Gas Sands,” SPE Paper 103356, DistinguishedAuthor Series. Feugueur K, and Schenckery M (2006): “Unconventional Gas in North America.” Mission Economique de HOUSTON (2006): 1–52. Xiong H and Holditch SA (2006): “Will the Blossom of Unconventional Natural Gas Development in North America Be Repeated in China?“ paper SPE 103775 presented at the 2006 SPE International Oil & Gas Conference and Exhibition in China, Beijing, (December 5–7, 2006). Stark P and Chew K (2004): Global Gas Resources: Implications for North America, IHS Energy (August 2004). Ammer, J. (2002): “Tight Gas Technologies for the Rocky Mountains“, GasTIPS 8, number 2 (Spring 2002): 18–23. “Technology Impact on Natural Gas Supply” Chapter 5 in Supply Task Group Report, Volume 4 of Balancing Natural Gas Policy, Fueling the Demands of a Growing Economy, National Petroleum Council (September 2003). Available at http://www.npc.org/. Filling the Gap, Unconventional Gas Technology Roadmap, Petroleum TechnologyAlliance Canada (June 2006). Technology Needs for Unconventional Gas Development, Research Partnership to Secure Energy for America, Final DOE Report, Contract DE-RP26-04NT41817 TSK41817.211.01.05 (November 2005). • Global Emerging Resource Consortia, Gas Research Institute (October, 1998). @Hassan Harraz 2018 tight reservoir 23 Reference
- 24. Outline of Lectures: Topic1: Natural Gas (Overview). Topic 2: Unconventional Gas Reservoir Topic 3: Shale Gas Topic 4:Coalbed Methane (CBM) Topic 5: Tight Reservoir Topic 6: Gas Hydrates Topic 7: Hydraulic Fracturing. Topic 8 : Separating and Treating Well Fluids Topic 9 : Natural Gas Processes Topic 10 : Liquefied Natural Gas (LNG) Life Cycle Overview. Topic 11 : Egyptian Natural Gas Resource (Overview). @Hassan Harraz 2018 Nature Gas 24