摆动阀泥浆脉冲器调制解调方案设计与试验
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摘要
在高速率泥浆脉冲随钻数据传输系统中,采用了新型摆动阀脉冲器,它可以支持更高的数据传输率及更多样化的数据调制方式。针对这种新型传输系统设计并实现了多种数据调制解调方案。其中调制方案包括调幅、调相及连续调频调相三种调制方法,解调方案包含数据采集、信号预处理、匹配、均衡及解码全过程。实现了高速率随钻数据传输的调制解调功能搭建,并进行了实时解调实验,验证了其可行性和有效性。
Swing valve pulser used in the log well drilling system can match the need of high transfer rate and offer the possibility of multiple modulation. In this paper, a modem scheme for this transmission system is explained. Wherein the modulation scheme includes amplitude shift keying, phase shift keying and continuous-phase frequency shift keying. And demodulation scheme includes data acquisition, signal preprocessing, matching, decoding and equalization process.
Swing valve pulser used in the log well drilling system can match the need of high transfer rate and offer the possibility of multiple modulation. In this paper, a modem scheme for this transmission system is explained. Wherein the modulation scheme includes amplitude shift keying, phase shift keying and continuous-phase frequency shift keying. And demodulation scheme includes data acquisition, signal preprocessing, matching, decoding and equalization process.
引文
[1] 王智明,菅志军,李相方,等.连续波高速率泥浆脉冲器设计研究[J].石油天然气学报,2008,30(2):611-613.
[2] Tjemsland T H H.Evaluation of Measurement-While-Drilling,telemetry methods and integration of control systems[D].2012.
[3] 郭建军,刘海军,权景明.无线随钻系统噪声信号分析与控制[J].石油矿场机械,2008,37(9):10-13.
[4] Klotz C,Bond P R,Wassermann I,et al.A new mud pulse telemetry system for enhanced MWD/LWD applications[C]//IADC/SPE Drilling Conference.Society of Petroleum Engineers,2008.
[2] Tjemsland T H H.Evaluation of Measurement-While-Drilling,telemetry methods and integration of control systems[D].2012.
[3] 郭建军,刘海军,权景明.无线随钻系统噪声信号分析与控制[J].石油矿场机械,2008,37(9):10-13.
[4] Klotz C,Bond P R,Wassermann I,et al.A new mud pulse telemetry system for enhanced MWD/LWD applications[C]//IADC/SPE Drilling Conference.Society of Petroleum Engineers,2008.