The Composite Perforating Dynamic Testing Technology Research Of Coal-bed Gas Well

Compound perforation technique is a kind of important technology of coal-bed gas wellproduction. In coal-bed methane Wells in the whole process of compound perforation,pressure and temperature data are the key parameters, which could reflect the effect ofcompound perforation, compound for coal-bed methane well production mechanism providethe measured data. So the dynamic test of coal-bed methane well composite perforatingtechnology research is very necessary.This topic of coal-bed methane Wells dynamic test technology are studied, mainly tocomplete the content of the four aspects:First, this article introduces the research background and significance of the compositeperforating dynamic testing technique research of coal-bed methane, analyze the down holeenvironment and the environment of composite perforating moments, and then designed theoverall design scheme of coal-bed methane Wells compound perforating dynamic test systemaccording to the requirements of test, designed test system hardware circuit and softwareaccording to the design scheme.Secondly, according to the practical precision of the test system and test the stability ofthe system requirements, the test system was calibrated in simulation application environment,record test system sensitivity under different temperature. Pressure test system for thetemperature compensation.Third, the test system in the calibration process and testing process is constantlychanging, the measurement result is a change over time. Testing system of the input andoutput compared to static measuring, the relation between time-varying, follow-up, dynamicity, correlation, etc. In order to improve the precision of the dynamic testing system,the paper analyzes the dynamic measurement error sources, On the basis of the systemmathematical model is established, the dynamic testing system of coal-bed methane Wellscomposite perforation has carried on the analysis of uncertainty.Finally, the measured date of coal-bed methane Wells is compared with the measure dateof oil Well, experimental data are analyzed, and this topic analyze the fracturing effect OnCoal-bed methane well composite perforating gun parameters.