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SQC-701F 型色谱气测仪已在全国各油田普及,并在找油找气中发挥了一定的作用,但在实践中也遇到了问题。如遇异常时烃组分毫伏数较高,虽然记录仪上设计了变比例装置,但有时还记录不下来,因此就要用衰减档来完成。由于变比例装置的误差较大,受阻尼等因素影响,使用衰减档之后的数值误差更大。同时,烃组分C_1、C_2和C_3
SQC-701F chromatography gas detector has been popularized in all oil fields in the country and has played a certain role in looking for oil to find gas, but also encountered problems in practice. In case of abnormalities when the hydrocarbon composition of millivolts higher, although the recorder designed to change the ratio of devices, but sometimes not recorded, so we must use the attenuation file to complete. Due to the larger error of the variable ratio device and the damping and other factors, the numerical error after using the downshift is greater. At the same time, hydrocarbon components C_1, C_2 and C_3