Back
 ENG  Vol.11 No.3 , March 2019
Safety Control Technology of Deepwater Perforated Gas Well Testing
Abstract: Due to the high difficulties, high investment, and high risks in deepwater oil and gas well testing, major safety problems can occur easily. A key to prevent accidents is to conduct safety assessment and control on deepwater testing and to improve the testing technology. The deepwater of the South China Sea has some special environmental features: long distance from offshore, frequent typhoons in summer and constant monsoons in winter, and the presence of sandy slopes, sandy ridges and internal waves, coupled with the complex properties of oil and gas reserves which bring more challenges to deepwater well testing. In combination with deepwater well testing practice in the South China Sea, this paper analyzes the main potential risks in deepwater well testing and concludes that there are risks of failures of testing string, tools, and ground processes. Other risks are gas hydrate blockage, reservoir stratum sanding, and typhoon impacts. Specific precautions are also proposed in response to these risks in the paper.
Cite this paper: Liang, H. and Wu, M. (2019) Safety Control Technology of Deepwater Perforated Gas Well Testing. Engineering, 11, 131-136. doi: 10.4236/eng.2019.113011.
References

[1]   Xie, Y.H. (2015) Status and Prospect of Proprietary Oil and Gas Field Exploration and Development in Deepwater West Area of South China Sea. Oil Drilling & Production Technology, 37, 11-13.

[2]   Xie, Y.H. (2014) A Major Breakthrough in Deepwater Natural Gas Exploration in a Self-Run Oil/Gas Field in the Northern South China Sea and Its Enlightenment. Natural Gas Industry, 34, 1-8.

[3]   Wu, M.W., Yang, H.J., Liang, H., et al. (2015) Key Techniques and Practices of Critical Flow Based Tests for Deepwater Exploration Wells: A Case Study of Deep Water Area in the Qiongdongnan Basin. Natural Gas Industry, 35, 65-70.

[4]   Wu, M.W., Liang, H. and Jiang, H.F. (2015) Key Technology of Testing Design for High-Permeability Gas Well in Deep Water Area of the Qiongdongnan Basin. China Offshore Oil and Gas, 6, 31-36.

[5]   Yang, S.K., Dai, Y.D., Lv, Y. and Guan, L.J. (2009) Key Techniques of Gas Well Testing in South China Sea Deep Water. China Offshore Oil and Gas, 4, 237-241.

[6]   Dai, Z., Luo, D.H., Liang, W., et al. (2012) A DST Design and Practice in Deep-Water Gasfields, South China Sea. China Offshore Oil and Gas, 1, 25-28.

[7]   Zhang, X.T. (2010) The Structure Design of Well Completion Test String in Deep Water. China University of Petroleum, Beijing.

[8]   Xie, X., Fu, J.H., Zhang, Z. and He, Y.F. (2011) Mechanical Analysis of Deep Water Well-Testing Strings. Natural Gas Industry, 31, 77-79.

 
 
Top