智能钻柱信息及电力传输系统的研究

信息与电力传输是智能钻柱的重要组成部分。分析了地面与井下通信技术的发展概况,指出了目前常用的几种传输方案所存在的问题及其局限性。智能钻柱采用导线传输方式,既能由地面向井下输送足够的电力,同时,又能建立300-500kb／s传输速率的地面与井下双向信息“高速公路”,进行了地面模拟试验,并取得预期结果,从而说明了智能钻柱设计方案的可行性及优越性。

Study on Information and Power Transmission Based on An Intelligent Drill String

The information and power transmission system is the key component of an intelligent drillstring. This paper analyzes the developments of communication between surface module and downhole one, and indicates defects and limitations of several current transmission designs. The intelligent drill string with wire line transmission can supply downhole module with sufficient power from surface, as well as can establish the two-way information "expressway" with a rate of 300-500 kbps. This communication system has been simulated, which achieved expected results. Successful lab tests indicate the feasibility and advantages of the intelligent drill strings.