Reservoir Evaluation and Development ›› 2021, Vol. 11 ›› Issue (2): 235-240.doi: 10.13809/j.cnki.cn32-1825/te.2021.02.014
• Shale Gas Development • Previous Articles Next Articles
XIA Haibang(),BAO Kai,WANG Rui,XIONG Wei
Received:
2020-09-30
Online:
2021-04-26
Published:
2021-04-30
CLC Number:
XIA Haibang,BAO Kai,WANG Rui,XIONG Wei. Gelling acid fracturing experiment in Maokou marl formation of Nanchuan area[J].Reservoir Evaluation and Development, 2021, 11(2): 235-240.
Table 3
Production data of Well-DS1HF"
油嘴 (mm) | 测试时间 (h) | 测试结果 | |||||
---|---|---|---|---|---|---|---|
油压(MPa) | 油压波动量(MPa) | 套压(MPa) | 套压波动量(MPa) | 产气量(104 m3/d) | 产量波动(%) | ||
7 | 8 | 12.11↘12.03 | 0.08 | 9.35↗9.36 | 0.01 | 9.74 | 1.08 |
8 | 8 | 15.26↘15.17 | 0.09 | 11.93↘11.81 | 0.12 | 13.74 | 2.18 |
9 | 8 | 12.46↘12.35 | 0.11 | 9.67↘9.64 | 0.03 | 16.41 | 1.28 |
10 | 8 | 14.66↘14.43 | 0.23 | 11.59↘11.43 | 0.16 | 23.05 | 3.38 |
Table 4
Comparison of acid fracturing technology in different gas fields of Sichuan Basin"
气田 | 酸液 | 改造方式 | 施工参数 |
---|---|---|---|
普光气田 | 胶凝酸 | 多级注入酸压、闭合酸化 | 酸液570~953 m3,排量5.0~9.7 m3/min |
巴中地区 | 胶凝酸 | 多级注入酸压 | 酸液300~400 m3,排量1.5~4.0 m3/min |
新场气田 | 胶凝酸 | 多级注入酸压、闭合酸化 | 酸液120~220 m3,排量1.5~3.0 m3/min |
安岳气田 | 胶凝酸+转向酸 | 分段酸压、多级注入酸压、闭合酸化 | 酸液1 200 m3,排量5~7 m3/min |
南川气田 | 胶凝酸 | 分段酸压、多级注入酸压、闭合酸化 | 酸液2 129 m3,排量4~6 m3/min |
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