Oil & Gas Geology ›› 2021, Vol. 42 ›› Issue (4): 898-908.doi: 10.11743/ogg20210411
• Petroleum Geology • Previous Articles Next Articles
Jinbao Duan(), Mindong Jin, Zhiwei Fan, Xiang Zhu, Yanting Liu
Received:
2020-10-12
Online:
2021-08-28
Published:
2021-08-27
CLC Number:
Jinbao Duan, Mindong Jin, Zhiwei Fan, Xiang Zhu, Yanting Liu. Characteristics and favorable plays for high-quality reservoirs in the Middle Triassic Lei 4 Member, Yuanba area, northeastern Sichuan Basin[J]. Oil & Gas Geology, 2021, 42(4): 898-908.
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Table 1
Statistics of the physical properties of the Lei 4 Member in Yuanba area, Sichuan Basin"
井名 | 深度/m | 岩性 | 氦气孔隙度/% | 平均渗透率/(10-3μm2) | 沉积亚相 |
YB12 | 4 658.87 | 云质角砾岩,角砾成分主要为砂屑白云岩 | 7.95 | 32.631 1 | 颗粒滩 |
YB12 | 4 657.09 | 云质角砾岩,角砾成分主要为砂屑白云岩 | 6.01 | 3.041 0 | 颗粒滩 |
YB12 | 4 660.10 | 砂屑白云岩 | 4.88 | 0.008 0 | 颗粒滩 |
YB4 | 5 017.27 | 灰质白云岩 | 3.89 | 313.944 7 | 台坪 |
YB204 | 4 873.71 | 灰质白云岩 | 3.81 | 0.045 4 | 台坪 |
YB4 | 5 014.34 | 云质角砾岩,角砾成分主要为砂屑白云岩 | 3.43 | 0.001 2 | 颗粒滩 |
YB204 | 4 872.31 | 灰质白云岩 | 3.11 | 39.320 5 | 台坪 |
YB12 | 4 661.09 | 砂屑白云岩 | 2.96 | 0.004 1 | 颗粒滩 |
YB12 | 4 664.46 | 粉-泥晶藻屑白云岩 | 2.46 | 35.720 9 | 台坪 |
YB12 | 4 660.30 | 云质角砾岩,角砾成分主要为砂屑白云岩 | 2.45 | 0.323 4 | 颗粒滩 |
YB12 | 4 660.52 | 粉晶白云岩 | 2.39 | 0.601 0 | 台坪 |
YB4 | 5 016.73 | 粉晶白云岩 | 2.39 | 0.106 2 | 台坪 |
YB12 | 4 661.60 | 粉-泥晶藻屑白云岩 | 2.38 | 1.242 1 | 台坪 |
YB204 | 4 863.32 | 灰质白云岩 | 2.24 | 6.832 4 | 台坪 |
YB4 | 5 019.33 | 灰质白云岩 | 2.20 | 164.945 7 | 台坪 |
YB12 | 4 657.49 | 灰质角砾岩,角砾成分主要为砂屑灰岩 | 2.13 | 0.004 3 | 颗粒滩 |
YB4 | 5 020.03 | 粉晶残余藻屑白云岩 | 1.88 | 1.203 5 | 台坪 |
YB204 | 4 877.13 | 膏质白云岩 | 1.67 | 0.006 5 | 潟湖 |
YB204 | 4 875.87 | 膏质白云岩 | 1.19 | 0.002 9 | 潟湖 |
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