新疆石油地质 ›› 2023, Vol. 44 ›› Issue (2): 184-194.doi: 10.7657/XJPG20230208
收稿日期:
2022-03-02
修回日期:
2022-09-14
出版日期:
2023-04-01
发布日期:
2023-03-31
作者简介:
张景(1985-),男,湖北罗田人,高级工程师,非常规设计开发与研究,(Tel)0990-6879506(E-mail)基金资助:
ZHANG Jing1(), HU Dandan2, QIN Jianhua1, WANG Yingwei1, TANG Huiying2
Received:
2022-03-02
Revised:
2022-09-14
Online:
2023-04-01
Published:
2023-03-31
摘要:
准噶尔盆地玛湖砾岩油藏从规模化开发向效益化转变的过程中,在考虑经济效益的前提下,合理选择压裂施工参数尤为重要。为实现玛湖砾岩油藏压裂施工关键参数优化,建立压裂裂缝扩展等效KGD裂缝扩展模型,实现快速估计裂缝形态,采用启发式粒子群算法,以收益率为目标函数,对玛湖砾岩油藏不同产层分别进行压裂施工规模、簇数和排量的组合优化。结果表明,随着迭代次数的增加,高成本开发方案最终收敛到综合开发效果最佳的组合优化方案,实现了玛131区块施工参数优化。
中图分类号:
张景, 虎丹丹, 覃建华, 王英伟, 唐慧莹. 玛湖砾岩油藏水平井效益开发压裂关键参数优化[J]. 新疆石油地质, 2023, 44(2): 184-194.
ZHANG Jing, HU Dandan, QIN Jianhua, WANG Yingwei, TANG Huiying. Optimization of Key Fracturing Parameters for Profitable Development of Horizontal Wells in Mahu Conglomerate Reservoirs[J]. Xinjiang Petroleum Geology, 2023, 44(2): 184-194.
表1
经济效益计算模型参数"
参数 | 取值 |
---|---|
基准折现率/% | 10.50 |
天然气售价/(元·10-3 m-3) | 820 |
天然气商品率/% | 95 |
原油售价/(元·t-1) | 2 560(2019年—2021年) 2 805(2022年—2034年) |
原油商品率/% | 99.10 |
钻井成本/(元·m-1) | 4 061 |
与注液量有关的完井成本/(元·m-3) | 60 |
压裂服务费/(元/段) | 190 000 |
其他完井成本/元 | 7 496 583 |
其他初期投资/元 | 9 500 000 |
资源税/% | 6 |
增值税/% | 6 |
单井维护总成本/元 | 500 000 |
天然气开采成本/(元·10-3 m-3) | 143 |
原油开采成本/(元·t-1) | 290 |
水处理成本/(元·m-3) | 22.50 |
表2
模型收益率本文计算值与文献计算值对比"
井名 | 支撑裂缝占比/% | 层位 | 井距/m | 段数 | 段内簇数 | 单段压裂规模/m3 | 收益率/% | |
---|---|---|---|---|---|---|---|---|
M1247井 | 文献计算值 | 100 | 30 | 3 | 733 | 10.80 | ||
本文计算值 | 50 | 100 | 30 | 3 | 733 | 8.77 | ||
70 | 100 | 30 | 3 | 733 | 10.44 | |||
90 | 100 | 30 | 3 | 733 | 14.27 | |||
M1242井 | 文献计算值 | 150 | 30 | 3 | 1 300 | 11.30 | ||
本文计算值 | 50 | 150 | 30 | 3 | 1 300 | 7.41 | ||
70 | 150 | 30 | 3 | 1 300 | 11.46 | |||
90 | 150 | 30 | 3 | 1 300 | 14.57 |
表3
单段压裂生产模型参数"
层位 | 孔隙压力/ MPa | 含水饱和度/ % | 孔隙度/ % | 气测 渗透率/mD | 液测 渗透率/mD | 气油比 | 饱和压力/ MPa | 杨氏模量/ GPa | 泊松比 |
---|---|---|---|---|---|---|---|---|---|
36.56 | 97 | 6 | 0.09 | 0.004 | 235 | 34.66 | 29.10 | 0.25 | |
36.84 | 46 | 10 | 2.23 | 0.111 | |||||
37.29 | 80 | 9 | 1.74 | 0.087 | |||||
37.29 | 52 | 11 | 2.48 | 0.120 | 140 | 23.97 | 29.10 | 0.22 | |
37.77 | 87 | 11 | 1.48 | 0.074 |
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