Amol Agarwal
CBM as an energy source
What is CBM ?
 It is a natural gas produced from coal seams
 Sweet gas- mostly contains methane
 Other components are e...
Origin
 Organic material with temperature and pressure effect
 Volatile substances such as methane , water result in
con...
How methane is trapped in coal bed?
 Methane is adsorbed in the coal
Adsorption
Physisorption Chemisorption
• Physisorpti...
Extraction
Coal bed pressure is decreased
 which make the gas come out
 Water is pumped out for
decreasing pressure
INDIAN RESERVES
Identified Blocks/Coalfields Reserves
(in BCM)
Reserves
(in TCF)
Rajmal, Jharkhand 158 5.58
Birbhum, W.B 5...
COMPARISON OF CBM FROM OTHER NATURAL
RESOURCES
On the basis of E&P
On the basis of environmental impacts of resources
O...
Indian scenario
3rd largest proven coal reserve
4th largest coal producer in the world
CBM reserve – 4.6 TCM
33 CBM bl...
Commercial development
Absence of E & P activity till 1997
2001, DGH invited bids through PSC
4 rounds have been comple...
Indian projects
Raniganj(WB) -ONGC 90%
Coal India 10%
Bokaro & Karanpura – ONGC 80%,
Indian Oil 20%
Sohagpur (MP) - RIL...
CURRENT & FUTURE CHALLENGES
Surface Disturbance
Air Pollution
Hydraulic fracturing
Sand, proppants and particulates pr...
Major challenges for commercial development of
CBM assets
Lack of technical expertise and experience in CBM related
proje...
Coal Bed Methane
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Coal Bed Methane

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A brief overview of what the Coal Bed Methane is

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Coal Bed Methane

  1. 1. Amol Agarwal CBM as an energy source
  2. 2. What is CBM ?  It is a natural gas produced from coal seams  Sweet gas- mostly contains methane  Other components are ethane, propane , butane
  3. 3. Origin  Organic material with temperature and pressure effect  Volatile substances such as methane , water result in contraction  Contraction further results in formation of cleats
  4. 4. How methane is trapped in coal bed?  Methane is adsorbed in the coal Adsorption Physisorption Chemisorption • Physisorption involves intermolecular forces b/w gas molecules & coal. It is more endothermic. • Chemisorption involves sharing & transfer of electrons.
  5. 5. Extraction Coal bed pressure is decreased  which make the gas come out  Water is pumped out for decreasing pressure
  6. 6. INDIAN RESERVES Identified Blocks/Coalfields Reserves (in BCM) Reserves (in TCF) Rajmal, Jharkhand 158 5.58 Birbhum, W.B 50 1.77 Sohagpur 16.72 0.59 Singrauli Main Basin, MP 31 1.1 Tatapani-Ramkola, Chhattisgarh 53.78 1.9 Mand-Raigarh, Chhattisgarh 119 4.2 Southern Godavari Valley (Kothaguden) AP 87.2 2.2 Northern Godavari Valley AP 29.65 1.05 Barmer Basin, Rajasthan 120 4.24
  7. 7. COMPARISON OF CBM FROM OTHER NATURAL RESOURCES On the basis of E&P On the basis of environmental impacts of resources On the basis of exploration and production cost(Pricing)
  8. 8. Indian scenario 3rd largest proven coal reserve 4th largest coal producer in the world CBM reserve – 4.6 TCM 33 CBM blocks awarded in 4 rounds DGH awarded 1.8 tcm reserves
  9. 9. Commercial development Absence of E & P activity till 1997 2001, DGH invited bids through PSC 4 rounds have been completed till date 33 blocks were awarded Gas in place (GIP) - 8.92 tcf ONGC, RIL , Essar Oil , GEECL –main players
  10. 10. Indian projects Raniganj(WB) -ONGC 90% Coal India 10% Bokaro & Karanpura – ONGC 80%, Indian Oil 20% Sohagpur (MP) - RIL Private sector operators – Dart Energy, GEECL, Deep industries & a consortium by Jindal petroleum Satpura(MP) – Dart energy 80% , Tata power 20% Assam – Dart energy 60% Oil India 40%
  11. 11. CURRENT & FUTURE CHALLENGES Surface Disturbance Air Pollution Hydraulic fracturing Sand, proppants and particulates produced water Contamination risks to ground and surface water Methane contamination of water Flaring
  12. 12. Major challenges for commercial development of CBM assets Lack of technical expertise and experience in CBM related project development Lack of data/information on field characterization and hence technology selection toward reserve development Regulatory challenges in the form of clearances and pricing policies Poor quality of reserves in terms of CBM saturation level
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