Research on the Influence of a Cuttings Bed on Drill String Friction Torque in Horizontal Well Sections
Abstract
:1. Introduction
2. Materials and Methods
2.1. Experimental Plan Design
2.2. Preparation of Experimental Samples
2.3. Preparation of Open-Hole Rock Samples
2.4. Cuttings Collection and Classification
3. Results
3.1. Experimental Study on Friction Coefficient between Casing Section and Open Hole Section of Gas Drilling Horizontal Well
3.1.1. Experimental Study on the Influence of Cuttings Size and Lithology on Friction Coefficient under Open-Hole Conditions
3.1.2. Experimental Study on the Influence of Cuttings Size and Lithology on Friction Coefficient under Casing Conditions
3.2. Experimental Study on the Influence of Cuttings Deposition on the Friction Coefficient of the Horizontal Section of a Gas Drilling Horizontal Well
3.2.1. Deposition Characteristics of Cuttings in Horizontal Section and Analysis of Drill String “Coating Effect”
3.2.2. Experimental Study on the Influence of Cuttings “Coating Effect” on Friction Coefficient
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Cutting Particle Size | 3400–3800 | 4500–4800 |
---|---|---|
<l mm | 0.55 | 0.56 |
1 mm | 0.53 | 0.55 |
2 mm | 0.51 | 0.57 |
3 mm | 0.51 | 0.56 |
>4 mm | 0.57 | 0.53 |
Mixed cuttings | 0.54 | 0.52 |
No cuttings | 0.62 |
Cutting Particle Size | 3400–3800 | 4500–4800 |
---|---|---|
<1 mm | 0.48 | 0.58 |
1 mm | 0.50 | 0.50 |
2 mm | 0.43 | 0.51 |
3 mm | 0.59 | 0.59 |
>4 mm | 0.56 | 0.56 |
Mixed cuttings | 0.60 | 0.61 |
No cuttings | 0.79 |
Thickness | 5 mm | 10 mm | 15 mm |
---|---|---|---|
Casing | 0.47 | 0.53 | 0.52 |
Open-hole | 0.52 | 0.53 | 0.53 |
Height | 17 mm | 26 mm | 33 mm |
---|---|---|---|
Casing | 0.44 | 0.55 | 0.56 |
Open-hole | 0.50 | 0.55 | 0.58 |
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Li, X.; Fan, Y.; Li, J.; Su, X.; Zhan, S.; Hu, G.; He, Y.; Zhang, M. Research on the Influence of a Cuttings Bed on Drill String Friction Torque in Horizontal Well Sections. Processes 2022, 10, 2061. https://doi.org/10.3390/pr10102061
Li X, Fan Y, Li J, Su X, Zhan S, Hu G, He Y, Zhang M. Research on the Influence of a Cuttings Bed on Drill String Friction Torque in Horizontal Well Sections. Processes. 2022; 10(10):2061. https://doi.org/10.3390/pr10102061
Chicago/Turabian StyleLi, Xiaoming, Yuyue Fan, Jiahua Li, Xinghua Su, Sheng Zhan, Gang Hu, Yiqing He, and Ming Zhang. 2022. "Research on the Influence of a Cuttings Bed on Drill String Friction Torque in Horizontal Well Sections" Processes 10, no. 10: 2061. https://doi.org/10.3390/pr10102061