Oil & Gas Geology ›› 2022, Vol. 43 ›› Issue (5): 1238-1248.doi: 10.11743/ogg20220518
• Methods and Technologies • Previous Articles Next Articles
Chenglin Liu1,2(), Xinju Liu3, Hongjun Zhang4, Liyong Fan5, Xiya Yang1,2,4, Qibiao Zang1,2, Bo Dai4, Yue Meng4, Hongliang Huo1,2, Fang Wang6
Received:
2022-01-05
Revised:
2022-07-08
Online:
2022-10-01
Published:
2022-09-02
CLC Number:
Chenglin Liu, Xinju Liu, Hongjun Zhang, Liyong Fan, Xiya Yang, Qibiao Zang, Bo Dai, Yue Meng, Hongliang Huo, Fang Wang. Application of an integrated geology-reservoir engineering approach to shale oil development in Ansai area, Ordos Basin[J]. Oil & Gas Geology, 2022, 43(5): 1238-1248.
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Table 2
Shale oil development well pattern and parameters of the Chang 7 Member in Ansai area"
参数 | 交错排状准自然能量井网 | 五点法水平井网 | 七点法水平井网 | 九点法水平井网 | |
---|---|---|---|---|---|
井网参数 | 水平段长度/m | 600~1 200 | 400~700 | 600~800 | 800~1 200 |
注水井距/m | 400~600 | 400~500 | 600~800 | 600~800 | |
排距/m | 300 | 100~150 | 350~500 | 300~500 | |
井网密度/(口·km-2) | <1 | <1 | <1 | <1 | |
井排方向 | 垂直于裂缝走向 | 垂直于裂缝走向 | 垂直于裂缝走向 | 垂直于裂缝走向 | |
注采参数 | 注水时机 | 同步或滞后1个月 | 同步 | 同步 | 同步或超前 |
注水强度/(m3·d-1·m-1) | 1.4~2.3 | 1.4~2.3 | 1.4~2.3 | 1.4~2.3 | |
注入量和单井配注量/(m3·d-1) | 10~20 | 15~20 | 15~20 | 20~30 | |
压力参数 | 采油井井底流压/MPa | 5~9 | 5~9 | 5~9 | 5~9 |
注水井井底流压/MPa | 20~33 | 20~33 | 20~33 | 20~33 | |
地层破裂压力/MPa | 35~50 | 35~50 | 35~50 | 35~50 | |
最大注入压力/MPa | 14~20 | 14~20 | 14~20 | 14~20 | |
单井参数 | 单井产能/(t·d-1) | 10~50 | 10~50 | 10~50 | 10~50 |
采收率/% | 20~40 | 20~40 | 20~40 | 20~40 |
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