Design Of An Explosion-Proof Quantitative Degasser

Gas well-logging technique is a kind of method that is widely applied at home and abroad for the online analysis and estimate of oil and gas in the field of exploration and drilling of petroleum. Gas well-logging technique is able to apply real-time monitor for the content of oil and gas in the rock stratum that is drilled, and reaches the purpose of overground monitor for the underground drilling. Also it helps to take timely and accurate measures according to the collected data. Gas well-logging technique mainly consists of the following steps, including gas sampling, Hydrocarbon detection, data explanation and analysis, and application. Gas sampling is the first also the critical step for Gas well-logging technique as the authenticity of the sampled gas decides the accuracy of the technique.Based on the study of the most advanced sampling equipments at home and abroad, this thesis has researched the following aspects:It has conducted a comprehensive research on the widely used degassing equipments from domestic and overseas, and decided functions going to be implemented by the degasser that is going to be designed at conditions and can sample the mud continually and steadily, the rate of sampling mud is about1.1L/min. the installation of mud sampling head and the emptying mouth of electric heater and degassing box should be improved. But in generally, A contrast experiment conducted between the engine degasser used in the field and the new quantitative degasser has concluded that the new quantitative degasser works better in degassing than the engine degasser. When degassing the same mud, the amount gaseous hydrocarbon degassed by new quantitative degasser is two to three times larger than that by engine degasser.