High-efficiency water bath skid-mounted shale gas heating furnace and heating method

Abstract

The invention relates to a high-efficiency water bath skid-mounted shale gas heating furnace and a heating method. The high-efficiency water bath skid-mounted shale gas heating furnace comprises a heating furnace body and an in-furnace fire tube, wherein the horizontal end of the furnace body is a fuel gas inlet end; the other end of the furnace body is a shale gas pipeline connector end; a closed combustion fire tube is arranged on the lower part of the inner cavity of the furnace body; the inner cavity of the furnace body out of the fire tube is a water filling space; one end of the fire tube is connected with a combustion device; the other end of the fire tube is communicated with a smoke tube which extends reversely; the smoke tube is connected with a smoke box and a chimney in sequence; the combustion device is arranged at the fuel gas inlet end and outside the fire tube; the fuel gas inlet pipeline is communicated with the ignition end of the combustion device; a horizontal internal-combustion two-return combustion structure is adopted, fuel gas performs heating along the fire tube and flows back along the smoke tube reversely, the heating effect is good, the heat efficiency is high, meanwhile, the smoke tube and the fire tube are arranged compactly, and the size of the furnace body is reduced; the in-furnace tube body adopts an enhanced heat transfer structure which combines a straight fire tube and a wavy fire tube; the overall high-efficiency water bath skid-mounted shale gas heating furnace is skid-mounted, compact in structure and convenient to install.

Description

technical field [0001] The invention relates to the technical field of petroleum engineering, in particular to a heating furnace and a heating method used in the oil and gas gathering and transportation process in shale gas development. Background technique [0002] Shale gas refers to unconventional natural gas that occurs in organic-rich shale and its interlayers, mainly in the form of adsorption or free. [0003] The water jacket heating furnace is one of the important equipment in the exploration and development of oil and gas fields. Due to the different physical parameters of oil and gas and the needs of the oil and gas gathering and transportation process, the heating methods and equipment used are not exactly the same. Therefore, the heating furnace used is difficult. Form a standard product. At present, similar products developed on the market include natural gas heating furnaces, split heating furnaces and vacuum phase change heating furnaces. There are still imp...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the fact that the existing heating furnace cannot be applied to the shale gas production process that is currently the first to be developed, and to provide a high-efficiency water bath skid-mounted shale gas heating furnace and heating method, which can better adapt to shale gas Gas production, at the same time has the advantages of small size, compact structure, high thermal efficiency, less metal consumption

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