[1]沈产量,张景皓,张璐,等. 基于离散裂缝方法的多段压裂水平井数值试井模型[J].油气井测试,2021,30(01):1-8.[doi:10.19680/j.cnki.1004-4388.2021.01.001]
　SHEN Chanliang,ZHANG Jinghao,ZHANG Lu,et al. Numerical well test model of multistage fractured horizontal well based on discrete fracture method[J].Well Testing,2021,30(01):1-8.[doi:10.19680/j.cnki.1004-4388.2021.01.001]
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 基于离散裂缝方法的多段压裂水平井数值试井模型()
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《油气井测试》[ISSN:1006-6977/CN:12-1485/TE]

卷:
30卷
期数:
2021年01期
页码:
1-8
栏目:
出版日期:
2021-02-25

文章信息/Info

Title:
 Numerical well test model of multistage fractured horizontal well based on discrete fracture method
文章编号:
1004-4388(2021)01-0001-08
作者:
 沈产量1; 张景皓1; 张璐1; 薛小宝1; 廖新维2
 1.延长油田股份有限公司杏子川采油厂 陕西延安 717400
2.中国石油大学（北京）石油工程学院 北京 102249
Author(s):
 SHEN Chanliang1;  ZHANG Jinghao1;  ZHANG Lu1;  XUE Xiaobao1;  LIAO Xinwei2
 1.Xingzichuan Oil Production Plant, Yanchang Oilfield Co. Ltd.，Yan′an,Shaanxi 717400,China
2.School of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
关键词:
 ; 数值试井; 试井模型; 页岩油藏; 离散裂缝; 复杂缝网; 多段压裂; 水平井; 试井解释
Keywords:
 ; numerical well test;  well test model;  shale reservoir;  discrete fracture;  complex fracture pattern;  multistage fracturing;  horizontal well;  well test interpretation
分类号:
TE353
DOI:
10.19680/j.cnki.1004-4388.2021.01.001
文献标志码:
A
摘要:
 统裂缝试井模型无法准确解释含天然裂缝储层的压力测试资料。基于数值试井理论和离散裂缝方法，建立了考虑复杂天然裂缝的多段压裂水平井数值试井模型，得到含离散分布的天然裂缝多段压裂水平井瞬态压力数值解。通过该模型，分析了不同裂缝属性对多段压裂水平井试井曲线特征的影响。为进一步验证模型在实际应用中的可靠性，对吉木萨尔油田JWA井实测压力数据进行试井解释分析。结果表明，含复杂缝网的多段压裂水平井主要有8个流态；压力导数曲线上的“凹子”由天然裂缝对水力裂缝进行流体供给导致。该模型可以更加准确地反映井筒和地层信息，为天然裂缝发育的页岩油藏中多段压裂水平井试井动态解释提供理论指导。
Abstract:
 The traditional fracture well test model cannot accurately interpret the pressure test data of reservoirs with natural fractures. Based on the numerical well test theory and discrete fracture method, a numerical well test model for multistage fractured horizontal wells with complex natural fractures is established, and the transient pressure numerical solution of multistage fractured horizontal wells with discrete natural fractures is obtained. Through the model, the influence of different fracture attributes on well test curve characteristics of multistage fractured horizontal wells is analyzed. In order to further verify the reliability of the model in practical application, well test interpretation and analysis are carried out on the measured pressure data of well JWA in Jimusar oilfield. The results show that there are mainly eight flow patterns in multistage fractured horizontal wells with complex fracture network, and the “concave” on the pressure derivative curve is caused by the fluid supply of natural fractures to hydraulic fractures. The model can more accurately reflect the wellbore and formation information, and provide theoretical guidance for well test performance interpretation of multistage fractured horizontal wells in shale reservoirs with natural fractures.

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备注/Memo

备注/Memo:
 2020-06-20收稿,2020-08-04修回，2020-09-02接受，2021-02-20网络发表
国家自然科学基金项目（联合基金）“超低渗透油藏渗流规律及高效开发的关键科学问题”（U1762210）
沈产量，男，1977年出生，高级工程师，2016年毕业于西安石油大学化学工程专业，长期从事油田化学和试井资料解释方法及试井资料应用研究工作。电话：0911-6225113；Email：277640425@qq.com。通信地址：陕西省延安市安塞区杏子川采油厂，邮政编码：717400。
更新日期/Last Update: 2021-03-09