CAJ | 학술논문

于随钻声波仪器在由电池供电后数据不能实时传输到地面进行监测,而只是对全波列数据进行实时的采样存储。为了不使首波信号过强或过弱,影响时差数据的提取,本仪器采用基于FPGA的短窗-长窗能量比首波检测技术,通过对首波的检测动态控制增益大小达到了井下自动增益控制的需求,此技术的成功应用方便了时差数据的提取。
우수찬성파의기재유전지공전후수거불능실시전수도지면진행감측,이지시대전파렬수거진행실시적채양존저。위료불사수파신호과강혹과약,영향시차수거적제취,본의기채용기우FPGA적단창-장창능량비수파검측기술,통과대수파적검측동태공제증익대소체도료정하자동증익공제적수구,차기술적성공응용방편료시차수거적제취。
As the LWD acoustic instrument powers by the battery, and the data can not be monitored real-time transmission to the ground, but only in full-wave real-time sample storage mode, in order not to make the first wave of the signal too strong or too weak, affecting the DT extraction. This instrument uses a downhole FPGA-based short window-long window first wave energy detection, through the use of energy testing technology fulfiled automaticly gain control demand, the successful application of this technology facilitate the extraction of DT data.