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A New Method for Predicting the Position of Gas Influx Based on PRP in Drilling Operations
Joint Authors
Qiu, Yijie
Kong, Xiangwei
Lin, Yuanhua
Source
Journal of Applied Mathematics
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-16
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Accurately predicting the position of gas influx not only helps to analyze complex formation structure, but also can provide reference for taking effective measure, such as increasing mud density, increasing back pressure and casing packer, to suppress the gas influx.
Predicting the accurate position of gas influx has been one of the urgent difficulties for drilling industry.
With full consideration of the important factors such as the virtual mass force, viscous shear force, energy exchange, and narrow resistance, a new method for predicting the position of gas influx has been proposed based on pressure response time calculation.
The gas equations of state (EOS), small perturbation theory, and the fourth-order Runge-Kutta method (R-K4) are adopted to solve the model.
Also, the pressure response time plate (PRP) which presents the corresponding relationship between position of gas influx and wellhead parameters by several pressure wave response curves calculated by computer programming is given.
The results showed that the PRP is unique at different well depth and gas influx rate, and the position of gas influx can be accurately determined by PRP with known wellhead parameters and detected response time.
Therefore, without the help of downhole tools, the accurate mathematical method for predicting the position of gas influx is completely feasible.
American Psychological Association (APA)
Kong, Xiangwei& Lin, Yuanhua& Qiu, Yijie. 2014. A New Method for Predicting the Position of Gas Influx Based on PRP in Drilling Operations. Journal of Applied Mathematics،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-512280
Modern Language Association (MLA)
Kong, Xiangwei…[et al.]. A New Method for Predicting the Position of Gas Influx Based on PRP in Drilling Operations. Journal of Applied Mathematics No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-512280
American Medical Association (AMA)
Kong, Xiangwei& Lin, Yuanhua& Qiu, Yijie. A New Method for Predicting the Position of Gas Influx Based on PRP in Drilling Operations. Journal of Applied Mathematics. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-512280
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-512280