Advanced Reservoir and Production Engineering for Coal Bed Methane presents the reader with design systems that will maximize production from worldwide coal bed methane reservoirs. Authored by an expert in the field with more than 40 years of' experience, the author starts with much needed introductory basics on gas content and diffusion of gas in coal, crucial for anyone in the mining and natural gas industries.
Going a step further, chapters on hydrofracking, horizontal drilling technology, and production strategies address the challenges of dewatering, low production rates, and high development costs. This book systematically addresses all three zones of production levels, shallow coal, medium depth coal, and deep coal with coverage on gas extraction and production from a depth of 500 feet to upwards of 10,000 feet, strategies which cannot be found in any other reference book.
In addition, valuable content on deep coal seams with content on enhanced recovery, a discussion on CO2 flooding, infra-red heating and even in-situ combustion of degassed coal, giving engineers a greater understanding on how today's shale activities can aid in enhancing production of coal bed for future natural gas production.
- Delivers how to recover and degas deeper coal seams while lowering development costs
- Addresses both sorption process and irreducible fraction of gas in coal, with examples based on the author's 40 plus years of direct experience
- Explains how the same techniques used for production from deep shale activity can produce gas from deep coal seems with the help of enhanced recovery, leading to increased gas production
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Chapter 1. Global Reserves of Coal Bed Methane and Prominent Coal Basins
Chapter 2. Gas Content of Coal and Reserve Estimates
Chapter 3. Porosity and Permeability of Coal
Chapter 4. Diffusion of Gases From Coal
Chapter 5. Pore Pressure and Stress Field in Coal Reservoirs
Chapter 6. Fluid Flow in CBM Reservoirs
Chapter 7. Fluid Flow in Pipes and Boreholes
Chapter 8. Hydraulic Fracking of Coal
Chapter 9. Horizontal Drilling in Coal Seams
Chapter 10. Coalbed Methane Production From Shallow Coal Reservoirs
Chapter 11. Coalbed Methane Production From Medium-Depth Coal Reservoirs
Chapter 12. Coalbed Methane Production From Deep Coal Reservoirs
Pramod Thakur, PhD is Manager of Coal Seam Degasification at CONSOL Energy in Morgantown, West Virginia.
The three editors of the publication are board members of the North American Coal Bed Methane Forum (NACBMF), and they represent industry, academia and government. Each has more than 25 years of experience in coal bed methane research, field work, and instruction. The NACBMF has organized conferences to advance mine safety and to increase production of coal bed methane as a worldwide energy resource. For 28 years the Forum has provided an opportunity for an exchange of information on coal bed methane research and technology between the public and private sectors. The NACBMF is governed by a Board of Directors and consists of representatives from the coal bed methane industry, coal and gas industries, gas marketing and service industries. The length and breadth of experience embodied in the NACBMF Board of Directors makes this group exceedingly qualified to produce this book.