Powder River Basin Coalbed Methane Development and Produced

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Table 1-5. Volumes of CBM Produced Water (Billion Bbls) Alternative Water Disposal Options Surface Shallow Active Mineral Ownership Discharge Impoundment Reinjection Treatment Federal 16.6 14.6 13.8 3.7-6.5 State 1.9 1.7 1.6 0.4-0.8 Private 8.7 7.7 7.3 2.0-3.4 TOTAL 27.2* 24.0 22.7 6.1-10.7 *Approximately 5 billion barrels less water than estimated in the WY draft EIS. 1.5.4 More stringent CBM produced water management practices will lead to loss of recoverable CBM resources for federal, state and local mineral ownership. The loss of recoverable CBM resources by mineral ownership due to progressively more stringent CBM produced water management practices (using Case 2 economic conditions) is provided in Table 1-6. Mineral Ownership Table 1-6. Loss of Economically Recoverable CBM (Tcf) Surface Discharge* Impoundment Alternative Water Disposal Options 1-15 Shallow Reinjection Active Treatment Federal (1.5 Tcf) (2.2 Tcf) (7.5-9.4 Tcf) State (0.1 Tcf) (0.2 Tcf) (0.8-1.0 Tcf) Private (0.8 Tcf) (1.2 Tcf) (3.9-4.9 Tcf) TOTAL (2.4 Tcf) (3.6 Tcf) (12.2-15.3 Tcf) * An estimated 22.4 Tcf of economically recoverable CBM resource is available under Case 2 economic conditions and surface discharge. 1.5.5 More stringent CBM produced water management practices will reduce royalty collections and state severance and ad valorem tax receipts. Federal, state and private royalty payments average about $0.26/Mcf (assuming Case 2 economic conditions). The aggregate royalty payment losses would range from $506 to $3,184 million depending on the water management practice required, shown on Table 1-7.
Mineral Ownership Table 1-7. Loss of Mineral Royalties from CBM ($MM) Surface Discharge* Impoundment Alternative Water Disposal Options 1-16 Shallow Reinjection Active Treatment Federal ($268) ($401) ($1,349-1,687) State ($41) ($61) ($207-$258) Private ($197) ($294) ($991-$1,239) TOTAL ($506) ($756) ($2,547-$3,184) * A total of $4,659 million of mineral royalties would be collected under Case 2 economic conditions and surface discharge. State severance and county ad valorem tax receipts average about $0.15/Mcf (assuming Case 2 economic conditions and 12% (WY) and 9.3% (MT) tax rates). The aggregate tax receipt losses range from $360 to $2,270 million depending on the water management practices required. 1.5.6 More stringent CBM produced water management practices will lead to less capital investment and service work in the Powder River Basin. The loss of CBM well drilling and capital investment by mineral ownership due to more stringent CBM produced water management practices (using Case 2 economic conditions) is provided in Tables 1-8 and 1-9. Mineral Ownership Table 1-8. Loss of Well Drilling for CBM (# Wells) Surface Discharge* Impoundment Alternative Water Disposal Options Shallow Reinjection Active Treatment Federal (4,041) (6,324) (17,919-21,257) State (464) (726) (2,056-2,439) Private (2,120) (3,318) (9,940-11,151) TOTAL (6,625) (10,368) (29,915-34,847) * An estimated 46,944 wells would be drilled under Case 2 economic conditions and surface discharge. This represents more than 4,000 fewer wells compared to the WY draft EIS well-count estimate.
Page 1 and 2: DOE/NETL-2003/1184 POWDER RIVER BAS
Page 3: Powder River Basin Coalbed Methane
Page 6 and 7: estimates for the Powder River Basi
Page 9: TECHNICAL PREFACE Coalbed methane r
Page 12 and 13: Figures TABLE OF CONTENTS (Continue
Page 14 and 15: TABLE OF CONTENTS (Continued) Figur
Page 16 and 17: TABLE OF CONTENTS (Continued) Table
Page 18 and 19: TABLE OF CONTENTS (Continued) Table
Page 20 and 21: Economic Conditions Table S-1. Volu
Page 22 and 23: 1.0 STUDY PURPOSE, APPROACH AND FIN
Page 24 and 25: Barrels Water/Mcf Gas 4 3 2 1 0 2.8
Page 26 and 27: N 87W 6S 36 E 6S 37 E 6S 38 E 6S 39
Page 28 and 29: Figure 1-7. Extent of CBM Drilling
Page 30 and 31: 1.4 Study Approach 1.4.1 Coal Resou
Page 32 and 33: Table 1-1. Reports and Data for Pow
Page 34 and 35: 1.4.3 Basic Cost and Economic Model
Page 38 and 39: Table 1-9. Loss of Capital Investme
Page 40 and 41: The bulk of coalbed methane activit
Page 42 and 43: Source: Montgomery, 1999. Figure 2-
Page 44 and 45: A series of Wasatch Formation coals
Page 46 and 47: Anderson Canyon Cook Split Cook Fig
Page 48 and 49: Information on thickness of individ
Page 50 and 51: Reservoir Pressure, psia 1100 1000
Page 52 and 53: Overall, the study established that
Page 54 and 55: Table 2-4. Key Reservoir Properties
Page 56 and 57: Table 3-1. Gas In-Place for Major P
Page 58 and 59: Coal Seam Table 3-3. In-Place and T
Page 60 and 61: Table 3-7. In-Place and Technically
Page 62 and 63: Coal Seam Table 3-11. In-Place and
Page 64 and 65: 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1
Page 66 and 67: 1 2 3 4 5 6 7 8 9 10 11 12 Major Se
Page 68 and 69: The basic capital costs for the abo
Page 70 and 71: • Infiltration impoundment with e
Page 72 and 73: Table 4-4. Sample Tangible and Inta
Page 74 and 75: • Well pads are placed on 80-acre
Page 76 and 77: The annual cost for pump replacemen
Page 78 and 79: Chapter 3. For capital and O&M cost
Page 80 and 81: 5.3 Costs of Water Disposal Alterna
Page 82 and 83: 5.4 Discussion of Water Disposal Ca
Page 84 and 85: and a select number of injection pr
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Table 5-7. Annual Operating Costs f
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5-12
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Figure 6-1. Partition #1 Base Map 6
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• A series of coal mines exist in
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Production (Mcf/mo.; Barrel/mo.) 6,
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Type Well Well Depth (ft) Table 6-3
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Coal Seam Table 6-7. In-Place and T
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Figure 6-6. Partition #12 Base Map
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Gas and Water Production Rate (Mcfd
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Figure 6-9. Partition #4 Base Map 6
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Figure 6-10. Partition #4 Sample Lo
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Figure 6-11. Partition #4 Anderson
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Figure 6-14. Partition #4 Canyon We
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25,000 20,000 15,000 10,000 5,000 0
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• Wall. The Wall seam defines the
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Production (Mcf/mo.; Barrel/mo.) 35
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- Development. Figure 6-24 provides
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Figure 6-25. Partition #4 Cache Wel
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- Type Well. After adjustment for d
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Production(Mcf/mo.; Barrel/mo.) 30,
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Production(Mcf/mo.; Barrel/mo.) 40,
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- Area. The Wyodak coal seam meets
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- Type Well. The history-matched Co
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- Type Well. The history-matched Pa
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• Partition #5 contains 12 major
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- Development. A small number of Uc
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High 1,600 50 0.27 190 Low 1,740 20
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- Coal Depth. The depth to the top
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- Coal Depth. The depth to the top
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Table 6-55. In-Place and Technicall
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- Development. The are a total of 6
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Production (Mcf/mo.; Barrel/mo.) 7,
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- Type Well. The history-matched Ca
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- Time Zero Well. The time zero plo
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6.9 Partition #9 6.9.1 Summary Part
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- Development. The Dietz #2 seam is
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- Time Zero Plot. The time zero plo
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INTRODUCTION APPENDIX A GAS SORPTIO
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Figure A-1. Gas Content Isotherm Us
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Source: Bustin and Downey (2002) Fi
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Gas Production Rate (Mcfd) 400 350
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• The shallow coals were assumed
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Powder River Basin Coalbed Methane Development and Produced

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