Geofluids

Research Article

Three-Dimensional Modelling of Desorbed Gas Volume and Comparison to Gas Production Rate in the Montney Plays, Western Canadian Sedimentary Basin

Table 3

Shale volume, illite mineral volume, and estimated desorbed gas volume in each shale plays. First area refers to nine wells is located in eastern area of Montney Formation; second area wells were three well situates middle in Montney Formation; in third area, bottom five wells are located on northwestern part of Montney Formation. In most of well, Montney Formation is divided in to upper and lower member. Each volume was calculated within upper and lower member, by wells and by areas. AB: Alberta; BC: British Columbia.


		Eastern area (AB)									Middle area (AB)			Northwestern area (BC)
Result	UWI	1000603 07226 W500	1000604 07226 W500	1000904 07226 W500	1001103 07226 W500	1001104 07226 W500	1001333 07126 W500	1001603 07226 W500	1001632 07126 W500	1021233 07126 W500	1000301 06506 W600	1000323 06406 W600	1001425 06406 W600	200C05 2H094B 0902	200C004 F094G 0800	202C09 2G094G 0800	100D07 8G094H 0400	200C030 I094B 1500

	Upper ()	0.35	0.35	0.37	0.36	0.37	0.35	0.34	0.27	0.35	—	—	—	0.95	0.84	0.65	0.66	0.57
	Lower ()	0.45	0.45	0.47	0.45	0.47	0.45	0.42	0.36	0.45	—	—	—	0.76	0.75	0.57	0.54	0.49
	Average by well ()	0.39	0.39	0.4	0.39	0.4	0.38	0.37	0.3	0.39	0.12	0.41	0.5	0.81	0.79	0.58	0.58	0.52
	Average by area ()	0.38									0.34			0.65

	Upper ()	0.28	0.26	0.28	0.26	0.28	0.28	0.24	0.23	0.28	—	—	—	0.67	0.58	0.44	0.54	0.39
	Lower ()	0.24	0.24	0.24	0.23	0.26	0.26	0.21	0.21	0.24	—	—	—	0.44	0.43	0.31	0.34	0.29
	Average by well ()	0.26	0.25	0.26	0.25	0.28	0.27	0.23	0.22	0.27	0.07	0.23	0.30	0.49	0.46	0.33	0.41	0.44
	Average by area ()	0.25									0.216			0.4

	Upper ()	8.72	8.57	8.72	8.6	8.79	8.73	8.4	8.3	8.78	—	—	—	12.06	11.31	10.13	10.97	9.67
	Lower ()	8.42	8.4	8.4	8.3	8.53	8.55	8.14	8.11	8.37	—	—	—	10.09	10.06	8.97	9.22	8.84
	Average by well ()	8.6	8.51	8.6	8.5	8.71	8.67	8.29	8.24	8.63	6.9	8.28	9.28	10.56	10.23	9.16	9.83	9.12
	Average by area ()	8.52									8.15			9.78