Transient Pressure Fluctuation Effect During Gas Drilling in Horizontal Well
- Autores: Fang Q.1, Meng Y.1, Li H.1, Wei N.1, Li G.1
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Afiliações:
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
- Edição: Volume 55, Nº 4 (2019)
- Páginas: 497-507
- Seção: Article
- URL: https://journals.rcsi.science/0009-3092/article/view/235954
- DOI: https://doi.org/10.1007/s10553-019-01056-y
- ID: 235954
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Resumo
Combining gas drilling technology with horizontal well drilling leads to improvement in production in oil and gas reservoirs. However, wellbore gas encountering high-pressure formation gas could bring substantial risks in gas drilling process. A theoretical model for pressure wave speed and attenuation coefficient in gaseous phase flow is established and analytically solved by classic fluid-mechanics model and small perturbation theory. The simulation results suggest that the main factors affecting the pressure wave are angular frequency, pipe diameter, and original pressure. In addition, a pressure wave test device is designed to validate the model, and the experimental results fit well with the simulation results. The work presented in this paper can provide a theoretical basis for horizontal section gas drilling and can also detect gas influx to ensure safety and prevent accidents.
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Sobre autores
Qiang Fang
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Autor responsável pela correspondência
Email: melissa.delgado@springer.com
República Popular da China, Chengdu
Yingfeng Meng
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: melissa.delgado@springer.com
República Popular da China, Chengdu
Hongtao Li
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: melissa.delgado@springer.com
República Popular da China, Chengdu
Na Wei
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: melissa.delgado@springer.com
República Popular da China, Chengdu
Gao Li
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University
Email: melissa.delgado@springer.com
República Popular da China, Chengdu