Study on Radial Leakage Model and Law of Fractured Formation Drilling Fluid

被引:1
作者
Xie, Zelong [1 ,2 ]
Zhu, Liang [1 ,2 ]
Bi, Shubo [1 ,2 ]
Ji, Hui [1 ,2 ]
Wang, Tianyi [3 ]
Huang, Mengting [1 ,2 ]
Zhang, Hao [1 ,2 ]
Wu, Huimei [1 ,2 ]
机构
[1] Yangtze Univ, Natl Engn Res Ctr Oil & Gas Drilling & Complet Tec, Sch Petr Engn, Wuhan 430100, Peoples R China
[2] Hubei Prov Key Lab Oil & Gas Drilling & Prod Engn, Wuhan 430100, Peoples R China
[3] Yangtze Univ, Key Lab Oil & Gas Resources Explorat Technol, Minist Educ, Wuhan, Peoples R China
关键词
fractured formation; herschel-bulkley flow pattern; drilling fluid leakage; leakage rate; cumulative leakage rate; NON-NEWTONIAN FLUIDS; FLOW;
D O I
10.3390/pr11051388
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Wellbore leakage mostly occurs in structurally developed fractured formations. Analyzing the real-time leakage rate during the drilling process plays an important role in identifying the leakage mechanism and its rules on-site. Based on the principles of fluid mechanics and using Herschel-Bulkley (H-B) drilling fluid, by reasonably simplifying the drilling fluid performance parameters, fracture roughness characteristic parameters, pressure difference between the wellbore and formation, and the radial extension length of drilling fluid, the radial leakage model is improved to improve the calculation accuracy. Using the Euler format in numerical analysis to solve the model and with the help of numerical analysis software, the radial leakage law of this flow pattern in the fractures is obtained. The results show that the deformation coefficient of the fracture index, fracture aperture, pressure difference, leakage rate, and cumulative leakage rate are positively correlated. The larger the curvature of the fracture, the rougher the fracture, and the smaller the leakage rate and cumulative leakage rate. The larger the consistency coefficient of the drilling fluid, the greater the additional resistance between the fractures, and the smaller the leakage rate and cumulative leakage rate. As the extending length of the fracture increases, the invasion of drilling fluid decreases, the leakage rate slows down, and eventually reaches zero, with the maximum cumulative leakage rate.
引用
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页数:17
相关论文
共 30 条
[1]   Study on the Model and Law for Radial Leakage of Drilling Fluid in Fractured Formations [J].
Bi, Shubo ;
Zhang, Yan ;
Zhou, Zhi ;
Lou, Yishan ;
Zhou, Rui ;
Zhang, Ximin .
ACS OMEGA, 2022, :39840-39847
[2]   FLUID-FLOW THROUGH ROCK JOINTS - THE EFFECT OF SURFACE-ROUGHNESS [J].
BROWN, SR .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1987, 92 (B2) :1337-1347
[3]  
Chen X.H., 2019, DRILL FLUID COMPLET, V36, P15
[4]  
Cui G.J., 2021, PETROCHEM TECHNOL, V28, P93
[5]   Drilling Fluid and Cement Slurry Design for Naturally Fractured Reservoirs [J].
Gaurina-Medimurec, Nediljka ;
Pasic, Borivoje ;
Mijic, Petar ;
Medved, Igor .
APPLIED SCIENCES-BASEL, 2021, 11 (02) :1-31
[6]  
He R.b., 2015, J YANGTZE U SCI ED, V12, P38
[7]   The Study of Multi-Scale Specific Surface Area in Shale Rock with Fracture-Micropore-Nanopore [J].
Hu, Rongrong ;
Wang, Chenchen ;
Zhang, Maolin ;
Zhang, Yizhong ;
Zhao, Jie .
PROCESSES, 2023, 11 (04)
[8]  
Huang F.S., 2014, THESIS SW PETROLEUM
[9]  
[贾利春 Jia Lichun], 2014, [石油勘探与开发, Petroleum Exploration and Development], V41, P95
[10]   Quantitative Interpretation Model of Interwell Tracer for Fracture-Cavity Reservoir Based on Fracture-Cavity Configuration [J].
Jing, Cheng ;
Duan, Qiong ;
Han, Guangshun ;
Nie, Jianfeng ;
Li, Lu ;
Ge, Mingxu .
PROCESSES, 2023, 11 (03)