Petroleum Reservoir Evaluation and Development ›› 2021, Vol. 11 ›› Issue (4): 469-475.doi: 10.13809/j.cnki.cn32-1825/te.2021.04.001
• Specialist Forum • Next Articles
CHEN Yuanqian1,XU Liang1,2,WANG Lining1()
Received:
2020-10-23
Online:
2021-08-26
Published:
2021-08-19
Contact:
WANG Lining
E-mail:wanglining@petrochina.com.cn
CLC Number:
CHEN Yuanqian,XU Liang,WANG Lining. Applications of the generic exponential production decline model on estimating well-controlled recoverable reserves of shale gas fields in the United States[J].Petroleum Reservoir Evaluation and Development, 2021, 11(4): 469-475.
Table 1
Basic data for Woodfort Shale Gas Field"
参数名 | 矿场应用数值 | 换算国际单位 |
---|---|---|
埋深 | 4 700~12 000 ft | 1 432~3 658 m |
厚度 | 50~250 ft | 15.24~76.22 m |
孔隙度 | 4 %~8 % | |
渗透率 | 1~500 nD | 10-6 mD~0.000 5 mD |
压力 | 2 750~6 500 psia | 18.9~44.81 MPa |
净毛比(NGR) | 100 % | |
TOC | 4 %~14 %(质量分数) | |
Ro(成熟度) | 0.8 %~3.5 % | |
吸附气含量 | 80~150 scf/t | 2.27~4.25 m3/t |
法定井占面积 | 320~640 acres | 1.295~2.59 km2 |
井控可采储量 | 2~7 Bcf/well | 5 663 |
Table 2
Normalization yield data for three U.S. shale gas fields"
生产时间,t (mon) | 归一化qB | 归一化qW | 归一化qH | |||||
---|---|---|---|---|---|---|---|---|
Mscf/d | 104m3/d | Mscf/d | 104m3/d | Mscf/d | 104m3/d | |||
12 | 925 | 2.62 | 1250 | 3.54 | 3200 | 9.06 | ||
24 | 687.5 | 1.95 | 700 | 1.98 | 1900 | 5.38 | ||
36 | 550 | 1.56 | 540 | 1.53 | 1350 | 3.82 | ||
48 | 475 | 1.34 | 390 | 1.10 | 950 | 2.69 | ||
60 | 412.5 | 1.17 | 350 | 0.99 | ||||
72 | 350 | 0.99 | 250 | 0.71 | ||||
84 | 337.5 | 0.95 | 230 | 0.65 | ||||
96 | 281.3 | 0.80 | ||||||
108 | 260 | 0.74 | ||||||
120 | 212.5 | 0.60 | ||||||
132 | 200 | 0.57 |
Table 3
Well-controlled recoverable reserves evaluated by GEPD model with m=0.5 for three U.S. shale gas fields"
气田 代号 | 评价区井数 | α | β | R2 | qi | c | ECR30a (104m3) | GR (104m3) |
---|---|---|---|---|---|---|---|---|
B | 1 138 | 1.595 5 | 0.186 9 | 0.994 8 | 4.930 8 | 5.350 6 | 7 565 | 8 610 |
W | 413 | 2.177 8 | 0.289 4 | 0.983 4 | 9.029 5 | 3.455 4 | 6 554 | 6 577 |
H | 570 | 3.400 2 | 0.346 8 | 0.998 9 | 29.970 0 | 2.883 5 | 15 560 | 16 211 |
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