Research Progress of Fluid Permeability Law for Deep Water Oil and Gas Transporta-tion Flexible Pipes
As the key technology and equipment urgently needed to realize the independent exploita-tion of offshore oil and gas in China,the offshore flexible pipes cannot avoid the permeation of internal fluid due to its structure and material characteristics.The domestic related research is still in the initial stage,the consequences of the permeation are not clear,and the research method is not mature.Based on the gas permeation behavior in the pipe,the possible harm caused by the permeation is illuminated.The current mathematical models,experimental methods,and field test methods of flexible pipe per-meation at home and abroad are analyzed in detail.The prediction models of fluid permeability in inflex-ible pipes are compared and evaluated,and the factors that should be included in future model con-struction are expounded.The following focused points are put forward:material experiments should fo-cus on the permeability properties of different materials under different working conditions.The sample tube experiments and the full-scale experiments should focus on the simulation of the shielding effect and other influencing factors.The existing field testing methods are systematically reviewed.The testing should focus on continuous monitoring of annular residual volume,detection of annular fluid composi-tion,and detection of outer damage.
deep water oil and gasflexible pipegas permeationannular detectionmodel predic-tion
NETL
NSTL
万方数据
维普
