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深层气井作为天然气开采过程中的必要手段,在勘探开发逐步发达的今天,深层气井的勘探以及开发工作也日益受到重视。同时,对气井的试气保温工作的要求也越来越高。由于深层气井中,蕴藏着很多的可燃性气体,其中以天然气的含量最高,还有一部分为二氧化碳,由于二氧化碳的不可燃性,在对其进行产量计算过程中,无法通过燃烧来进行统计。加之二氧化碳在输出过程中,散去大部分的热量,如果不进行加热,就会形成干冰而堵塞了运输管道,会产生严重的后果。如果,选择使用热交换器,则被加热后的二氧化碳气体无法冷却,形成干冰的几率就会很低。对于油气的运输以及测量,都很方便。本文以徐深19#井的构造情况以及遇到的问题,进行探讨。并就其在施工中,所使用的交换器的特点以及可能发生的事故的预防等问题,进行详细阐述。
As a necessary means of natural gas exploration, deep gas wells are increasingly developed. Nowadays, exploration and development of deep gas wells are gaining more and more attention. At the same time, the requirements for gas-well thermal insulation of gas wells are also getting higher and higher. Because deep gas wells contain a large amount of combustible gas, the highest content of natural gas and the other part is carbon dioxide. Due to the incombustibility of carbon dioxide, it can not be calculated by combustion during its production calculation. Coupled with the carbon dioxide in the output process, most of the heat away, if not heated, it will form a dry ice and plug the transport pipeline, will have serious consequences. If you choose to use a heat exchanger, the heated carbon dioxide gas will not cool and the chances of forming dry ice will be low. For the transport and measurement of oil and gas, are very convenient. In this paper, the construction of Xu # 19 well and the problems encountered are discussed. It also elaborates on the features of the exchanger used in the construction, as well as the prevention of possible accidents.