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对于低压易漏地层实施钻井的过程中,常采用气体、泡沫等各种非常规钻井液,无法使用传统的钻井液脉冲传输方式,石油钻井行业迫切需要一种适用性强的井下信息无线传输技术。井下信息声波传输以其传输速率快,容量大、不受地层影响而成为研究热点。声波在钻柱中的传输受到多种因素的影响,依据钻柱信道的传播特性的研究,结合相关信道特征分析,对声波在钻柱通信信道中传播的通信能力和相关影响因素进行分析。
In the process of low-pressure easing formation drilling, often using gas, foam and other unconventional drilling fluid, the traditional drilling fluid pulse transmission can not be used, the oil drilling industry urgently needs a strong underground wireless transmission technology . Downhole acoustic transmission with its fast transmission rate, large capacity, without the influence of the formation of a research hot spot. The transmission of sound waves in the drill string is affected by many factors. Based on the study of the propagation characteristics of the drill string, combined with the analysis of relevant channel characteristics, the communication ability and related influencing factors of sound waves propagating in the drill string communication channel are analyzed.