Oil & Gas Geology ›› 2021, Vol. 42 ›› Issue (5): 1181-1188.doi: 10.11743/ogg20210515
• Methods and Technologies • Previous Articles Next Articles
Received:
2020-12-24
Online:
2021-10-28
Published:
2021-10-26
CLC Number:
Fangzheng Jiao. FSV estimation and its application to development of shale oil via volume fracturing in the Ordos Basin[J]. Oil & Gas Geology, 2021, 42(5): 1181-1188.
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Table 1
Characteristic parameter comparison of the shale oil from Ordos Basin and that from other basins home and abroad"
特征参数 | 鄂尔多斯盆地延长组 | 准噶尔盆地芦草沟组 | 三塘湖盆地条湖组 | 松辽盆地白垩系 | 北美二叠盆地 |
沉积环境 | 湖相 | 湖相 | 湖相 | 湖相 | 浅海相 |
埋深/m | 1 600~2 200 | 2 700~3 900 | 2 000~2 800 | 1 700~2 200 | 2 134~2 895 |
油层厚度/m | 5~15 | 10~13 | 5~20 | 10~30 | 400~600 |
孔隙度/% | 6.0~11.0 | 8.0~14.6 | 8.0~18.0 | 5.0~18.0 | 8.0~12.0 |
渗透率/(10-3μm2) | 0.110~0.140 | 0.010~0.012 | 0.100~0.500 | 0.020~0.500 | 0.010~1.000 |
含油饱和度/% | 67.7~72.4 | 78.0~80.0 | 55.0~76.5 | 48.0~55.0 | 75.0~88.0 |
气油比/(m3·t-1) | 75~122 | 18~22 | — | — | 50~140 |
原油粘度/(mPa·s) | 1.21~1.96 | 11.70~21.50 | 58.00~83.00 | 4.00~8.00 | 0.15~0.53 |
压力系数 | 0.77~0.84 | 1.20~1.60 | 0.90 | 1.10~1.32 | 1.05~1.50 |
水平应力差/MPa | 4~6 | 5~9 | 1~5 | 3~6 | 1~3 |
脆性指数/% | 35~45 | 50~51 | 31~54 | — | 45~60 |
Table 2
Fracturing parameters and development effect prediction of horizontal wells on Hua H 6 pad, Qingcheng oilfield"
井号 | 水平段长度/m | 压裂段数/簇数 | 加砂强度/(t·m-1) | 进液强度/(m3·m-1) | FSV/(104 m3) | EFSV/% | 累产油/(104 t) | 产量强度/(t·m-1) |
华H6-1 | 1 529 | 22/107 | 3.2 | 24.0 | 451 | 41.0 | 1.6 | 21.8 |
华H6-2 | 1 564 | 25/127 | 3.3 | 22.7 | 411 | 41.7 | 1.2 | 8.1 |
华H6-3 | 1 468 | 23/120 | 4.4 | 27.9 | 515 | 46.8 | 1.6 | 29.1 |
华H6-4 | 1 260 | 19/102 | 4.2 | 27.0 | 260 | 34.4 | 0.9 | 11.6 |
华H6-5 | 1 323 | 19/94 | 3.7 | 24.2 | 505 | 55.3 | 1.7 | 22.1 |
华H6-6 | 2 029 | 27/165 | 5.6 | 33.4 | 628 | 49.1 | 1.4 | 8.2 |
华H6-7 | 1 588 | 23/92 | 5.7 | 24.1 | 653 | 65.3 | 1.6 | 15.3 |
华H6-8 | 2 110 | 26/157 | 6.6 | 39.2 | 649 | 42.7 | 1.5 | 7.5 |
华H6-9 | 1 959 | 28/191 | 4.8 | 28.5 | 678 | 50.2 | 2.3 | 8.5 |
华H6-11 | 1 252 | 16/89 | 3.5 | 19.6 | 361 | 40.0 | 1.2 | 17.7 |
华H6-12 | 1 191 | 19/98 | 3.7 | 23.7 | 470 | 65.8 | 1.4 | 14.8 |
总平台平均值 | 1 570 | 23/122 | 4.4 | 26.7 | 5 580 | 48.4 | 16.5 | 15.0 |
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