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随着深层气井勘探开发的逐步增加,对于深层气井试气保温的工作也需要一定的提高。而深层气井中又包含天然气井和二氧化碳井,因为天然气是可燃气体,所以利用我们现在的分离器能够燃烧天然气来给水柜加温而提高天然气的温度,能够准确的计量出天然气的产量。而二氧化碳气体是一种不可燃气体,无法燃烧加热计算出产量,而且二氧化碳气体输出的过程也是它散热的过程,如不对其加热它很可能形成干冰堵塞管道,后果不堪设想。然而,使用热交换器对其加热,则不容易使二氧化碳气体冷却,也就不会形成干冰,对油气的输送和测量都提供了方便。所以下面我们以徐深19井为例,具体讨论关于深层二氧化碳气井的构造概况、试气施工中遇到的一些问题和解决方法、热交换器的功能特点及可能发生的事故的预防,以进一步加强安全意识,消除安全隐患。
With the gradual increase of exploration and development of deep gas wells, it is necessary to improve the test gas insulation in deep gas wells. Since the deep gas wells contain natural gas wells and carbon dioxide wells, because natural gas is a combustible gas, natural gas can be accurately measured by using our existing separator to burn natural gas to warm the water tank to raise the temperature of the natural gas. The carbon dioxide gas is a non-flammable gas, can not calculate the output of combustion heat, and the process of carbon dioxide gas output is its cooling process, if not heated it is likely to form dry ice blocked the pipeline, the consequences would be unthinkable. However, heating it with a heat exchanger does not allow the carbon dioxide gas to be easily cooled, and thus does not form dry ice, facilitating the transportation and measurement of hydrocarbons. So here we take the well Xushen 19 as an example to discuss in detail about the structure of the deep carbon dioxide gas wells, some problems and solutions encountered in the test gas construction, the functional characteristics of the heat exchanger and the prevention of possible accidents, to further Strengthen safety awareness and eliminate potential safety problems.