PPD
1
Gp
Pp Ppi
G 1 R PPD 1
)
PPD
0
0.3 0.6
We Wp Bw GBgi
0
0
R
1
16
4、气藏驱动指数
Gp P Pi (1 cc P ) (1 ) 综合气藏物质平衡方程: Z Zi G Bgi Gp (1 cc P ) 1 Bg G Bgi We Wp Bw Gp (1 cc P ) 1 Bg GBgi G
DI g DI c DI e 1
DI e 0 DI e 0 DI e 0, DI c 0
水驱气藏 封闭气藏 定容气藏
18
5、气藏视地质储量
We G Bgi (1 cc P) Bg Bgi (1 cc P) Bg
令: G
p
Gp Bg Wp Bw
Pp
PF
Gp
PF
G
PF Pp PF Pp cc P 2 cc Pi Pi P ,P PF cc ( Pi P) PFmax 4Z i 2 Z
PFi
Pp
PF
Gp
PF
G
G
Gp
10
3、水驱气藏
~ (1)气藏容积: 开发过程:
~
~
原始条件: Vci Ag h (1 swc )
Vgi
3
Psc Z iTi Bgi Z scTsc Pi Psc ZT Bg Z scTsc P
采用拟压力:
Gp P Pi (1 ) Z Zi G
P Pp Z
Pi Ppi Zi
得:
Pp Ppi (1