Design of TAML 5 Multilateral Completion System Based on Hook Hangers
The branch windows can not be sealed by The TAML 4 multilateral completion system,and water out of the branch window or out of one branch will seriously affect the recovery rate of the whole oil and gas well,and it is difficult to realize economic and effective development of oil and gas wells due to the difficulty of post-processing.A TAML 5 multilateral completion system based on the hook hanger was developed,including the Y-type double-tube converter device,the double-seal connection device,and the self-reversing seal plug.The integral sealing at the window is achieved by connecting the double sealing device with the hook hanger to tie back to the completion string of two branches respectively.In the later stage,the branch re-entry processing is achieved by the special re-entry tool connecting with the Y-typedouble-tube converter device.Finite element analysis software was used to analyze the strength of the core components under various working conditions,and none of the components had the risk of overall instability,and the design was verified to be reasonable.The research results can provide reference for the application of branch well technology.
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