Oil & Gas Geology ›› 2023, Vol. 44 ›› Issue (6): 1468-1478.doi: 10.11743/ogg20230611
• Petroleum Geology • Previous Articles Next Articles
Zhixiong FANG1(), Qiusheng XIAO1, Dianwei ZHANG2, Hongliang DUAN1()
Received:
2023-06-08
Revised:
2023-10-02
Online:
2023-12-01
Published:
2023-12-20
Contact:
Hongliang DUAN
E-mail:fangzx.jsyt@sinopec.com;duanhl.jsyt@sinopec.com
CLC Number:
Zhixiong FANG, Qiusheng XIAO, Dianwei ZHANG, Hongliang DUAN. Geological characteristics and exploration of continental fault-block shale oil reservoirs in the Subei Basin[J]. Oil & Gas Geology, 2023, 44(6): 1468-1478.
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Table 2
Key parameters of the shale intervals in the Fu 2 Member, Gaoyou Sag"
地层 | 厚度/m | TOC/% | S1/(mg/g) | OSI/(mg/g) | 孔隙度/% | 脆性矿物含量/% | 综合评价 | |
---|---|---|---|---|---|---|---|---|
Ⅰ亚段 | 39 | 1.50 ~ 2.25(1.83) | 0.10 ~ 0.34(0.18) | 8 ~ 16(12) | 2.00 ~ 3.06(2.41) | 55 ~ 58(57) | 三类 | |
Ⅱ+Ⅲ亚段 | 65 | 1.08 ~ 3.63(2.36) | 0.66 ~ 5.07(2.75) | 61 ~ 142(117) | 2.09 ~ 5.56(3.42) | 61 ~ 72(68) | 一类、二类 | |
Ⅳ亚段 | Ⅳ-1 | 12 | 0.82 ~ 1.95(1.50) | 0.32 ~ 1.31(0.88) | 58 ~ 68(64) | 4.03 ~ 5.59(5.17) | 63 ~ 67(66) | 三类 |
Ⅳ-2—Ⅳ-7 | 74 | 1.12 ~ 3.65(1.75) | 0.72 ~ 4.28(1.78) | 60 ~ 189(127) | 3.33 ~ 6.29(5.38) | 57 ~ 68(62) | 一类、二类 | |
Ⅳ-8 | 4 | 0.92 ~ 1.04(0.95) | 1.27 ~ 1.29(1.28) | 127 ~ 129(128) | 4.49 ~ 4.56(4.54) | 63 ~ 65(64) | 二类、三类 | |
Ⅴ亚段 | Ⅴ-1—Ⅴ-3 | 35 | 0.22 ~ 1.47(0.83) | 0.24 ~ 1.98(0.53) | 73 ~ 218(160) | 4.03 ~ 5.63(5.09) | 64 ~ 73(70) | 二类、三类 |
Ⅴ-4—Ⅴ-9 | 65 | 0.72 ~ 3.12(1.24) | 0.65 ~ 5.12(2.52) | 63 ~ 412(193) | 3.49 ~ 8.30(5.24) | 61 ~ 74(69) | 一类、二类 | |
Ⅴ-10 | 3 | 0.82 ~ 1.11(0.92) | 0.14 ~ 0.30(0.22) | 16 ~ 31(24) | 5.16 ~ 7.43(5.60) | 62 ~ 65(64) | 三类 |
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