Abstract
An electromagnetic measurement while drilling (EM-MWD) model for lateral wells based on the electromagnetic field finite element method (FEM) is proposed in this paper. This model solves the problem of ineffectively transmitting the information in front of the drill pipe to the ground during lateral well drilling. This paper innovatively proposes a helical coil antenna in lateral wells. Compared with the traditional insulating gap structure, the helical coil antenna has a better transmission effect. Through the simulation analysis of this model, a series of transmission characteristic diagrams of lateral wells are obtained. The results show that the electromagnetic transmission model of the lateral well using the helical coil antenna has a better transmitting ability, providing a theoretical reference for solving practical engineering problems in the future.
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