Coalbed Methane Potential Evaluation and Development Sweet Spot Prediction Based on the Analysis of Development Geological Conditions in Yangjiapo Block, Eastern Ordos Basin, China

Table 2

Critical desorption pressure, reservoir pressure, desorption efficiency desorption-abandonment difference, and desorption index of No. () coal seam in Yangjiapo block.

Wells	(MPa)	(MPa)	(m^3/(t MPa))	(MPa)	(m^3/t)
L1	1.75	7.42	2.14	1.25	0.63
L2	2.76	8.85	1.10	2.26	0.78
L3	1.83	7.20	2.16	1.33	0.73
L4	1.88	7.59	1.66	1.38	0.57
L5	3.99	8.28	0.78	3.49	1.32
L6	2.03	5.08	1.60	1.53	0.98
L7	2.77	8.48	1.44	2.27	1.07
L8	2.49	9.10	1.50	1.99	0.82
L9	2.22	5.33	1.47	1.72	1.05
L11	6.90	6.75	0.19	6.40	1.23
L12	3.00	9.32	1.23	2.50	0.99

Abbreviations: , critical desorption pressure; , reservoir pressure; , desorption efficiency; , desorption-abandonment difference; and , desorption index.