Oil & Gas Geology ›› 2023, Vol. 44 ›› Issue (2): 393-405.doi: 10.11743/ogg20230211
• Petroleum Geology • Previous Articles Next Articles
Jinxiong SHI1,2(), Xiangyuan ZHAO3, Renfang PAN1,2, Lianbo ZENG4(), Zhengping ZHU1,2
Received:
2022-07-06
Revised:
2023-01-05
Online:
2023-03-17
Published:
2023-03-17
Contact:
Lianbo ZENG
E-mail:shijinxiong1988@126.com;lbzeng@cup.edu.cn
CLC Number:
Jinxiong SHI, Xiangyuan ZHAO, Renfang PAN, Lianbo ZENG, Zhengping ZHU. Characteristics of natural fractures in carbonate reservoirs and their impacts on well productivity in the Sinian Dengying Formation, central Sichuan Basin[J]. Oil & Gas Geology, 2023, 44(2): 393-405.
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Table 1
Characteristics of reservoirs, shear fractures and well test results in the Deng 4 Member in Gaoshiti-Moxi area"
测试井号 | 平均孔隙度/% | 裂缝发育情况 | 试井解释 有效渗透率/ (10-3 μm2) | 试气产量/ (104 m3·d-1) | ||
---|---|---|---|---|---|---|
平均线密度/(条·m-1) | 未充填比例/% | 平均开度/μm | ||||
GS10 | 4.22 | 0.68 | 42.7 | — | 0.51 | 11.3 |
GS103 | 4.02 | 1.66 | 38.3 | 16.7 | 0.76 | 13.9 |
GS111 | 3.72 | 1.52 | 42.3 | 20.3 | — | 21.3 |
GS120 | 3.34 | 0.42 | 23.6 | — | 0.22 | 5.3 |
GS16 | — | 4.68 | 30.3 | 9.2 | 1.15 | 18.8 |
GS18 | 3.29 | 2.63 | 65.2 | 20.6 | 6.28 | 46.6 |
GS20-A | 3.52 | 2.17 | 30.8 | 18.7 | 0.91 | 6.8 |
GS20-B | — | 1.76 | 32.8 | — | 1.05 | 10.2 |
GS21 | 2.66 | 1.35 | 27.6 | 11.3 | — | 3.6 |
GS3 | 3.63 | 6.17 | 53.8 | — | 8.73 | 96.8 |
GS7-A | 3.69 | 2.98 | 23.0 | 26.1 | 0.23 | 7.6 |
GS7-B | 3.52 | 3.41 | 67.1 | 27.5 | 3.47 | 45.8 |
GS7-C | 3.68 | 3.02 | 57.4 | 22.5 | 2.05 | 32.5 |
MX13 | 4.18 | 2.85 | 39.6 | — | 2.18 | 30.2 |
MX117 | 3.51 | 2.98 | 19.7 | 13.5 | 0.49 | 14.5 |
MX118 | 2.98 | 5.06 | 52.1 | 27.2 | 9.38 | 61.3 |
MX23 | 3.52 | 3.82 | 43.1 | 24.1 | 4.21 | 42.5 |
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