沉积盆地流体动力场特征与油气富集规律.pdf

沉积盆地流体动力场特征与
油气富集规律
The characteristics of fluid dynamics and accumulation
of oil and gas in the sedimentary basin
沉积盆地流体动力场特征与油气富集规律
(outline)
一、油气成藏的四大基本特征
Four basic characteristics of hydrocarbon accumulation in the
sedimentary basin
二、沉积盆地两大动力学边界条件
Two dynamical boundaries of hydrocarbon accumulation in the
sedimentary basin
三、三大流体动力场及其控藏规律
Three fluid dynamical fields and role of its
controlling on hydrocarbon accumulation
四、流体动力场预测有利勘探区
Favorable prospecting area prediction by fluid dynamical field
五、相关问题讨论
Discussion
六、结论
Conclusion
一、油气成藏的四大基本特征
Four basic characteristics of hydrocarbon accumulation
特征之一: 随埋深增大, 油气成藏孔隙度变小
Character One: The effective porosity of hydrocarbon accumulation in the
reservoir declines with the increaseof its burial depth
Hinterland Region of
Hailaer Basin Songliao Basin
the Junggar Basin
Porosity(%) Porosity(%)
孔隙度(%)
Kuche Depression in the Porosity(%) 0 10203040
0
Tarim basin
m)
m) 500
))
(( 17 %
((
Porosity(%) 1000
10%
1500 8%
7%
深度(m) 深度(m) 2000
5%
2500
Burial depth Burial depth
Burial depth Burial depth
urial depth (m urial depth
al depth (m) al depth 3000 油层储层
BB
ii
4000
3500
Bur
4500
Platform Areas Porosity(%)
of the Tarim
basin
Porosity(%)
Dongying depression
of the Bohai Bay
Porosity(%)
basin Porosity(%)
l depth (m) l depth
urial depth (m) urial depth
aa
Porosity(%) B
Buri
Liaohe superdepression of
the Bohai Bay basin
rial depth (m) rial depth
depth (m) depth
ial depth (m) ial depth
uu
B
Bur
Burial Bozhong depression
Nanpu depression of of the Bohai Bay
the Bohai Bay basin basin
油气成藏存在(孔隙度或埋藏深度)下限吗?
A tthresholdhreshold value ( porosity or burial depth ) existed in the
hydrocarbon accumulation?
Jiayang superdepression of the Bohai Bay basin Surrounding Fined
围岩 sandbody
del
Porosity(% ) tion
oo
aa surrounding
(d, mm)
Sand砂体 body