Optimization of coiled-tubing drainage gas recovery technology in tight gas field

Abstract

In this study, research progress on critical liquid-carrying theory was introduced and its applicable conditions were presented and analyzed. The design technique of coiled-tubing drainage gas recovery was proposed, including the design method and calculation formula of diameter of coiled tubing, strength, and installation of a gas well Christmas tree, along with running time. Based on the design method, coiled-tubing drainage gas recovery technology was used in SD block of Sulige gas field to solve the problem of gas effusion. The field test results show a good effect of smaller pressure difference and higher gas production rate when the coiled-tubing drainage gas recovery method is used.

Description

© The Author(s) 2017. cc-by

Keywords

Applied mechanics, Coiled tubing, Critical liquid-carrying model, Drainage gas recovery, Fluid dynamics, Tight gas

Citation

Shen, Y., Luan, G., Ge, H., Yang, X., Liu, Q., & Guo, X.. 2017. Optimization of coiled-tubing drainage gas recovery technology in tight gas field. Advances in Mechanical Engineering, 9(5). https://doi.org/10.1177/1687814017711333

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