Pure oxygen and diesel combined heat carrier generator system

Abstract

The invention relates to a pure oxygen and diesel combined heat carrier generator system comprising a pure oxygen combined heat carrier generator. The input end of the pure oxygen combined heat carrier generator is connected respectively with a pure oxygen pipeline, a diesel pipeline and a water pipeline. The output end of the pure oxygen combined heat carrier generator is connected with an oil layer through a combined heat carrier delivery pipeline. The combined heat carrier delivery pipeline comprises a pure oxygen combustion chamber (29), a circulating water temperature sensor (30), a heat carrier gasification chamber (31), a heat carrier pressure transmitter (32), a heat carrier temperature sensor (33), a heat carrier safety bypass device (34), and a heat carrier safety emptier (35), wherein the pure oxygen combustion chamber (29), the circulating water temperature sensor (30), the heat carrier gasification chamber (31) and the heat carrier pressure transmitter (32) are connected in sequence through a pipeline. The pure oxygen and diesel combined heat carrier generator system has the advantages that operation cost can be reduced effectively, zero carbon emission and energy-saving emission are achieved, gas channeling caused by increased nitrogen content is prevented, and the system is applicable to the exploration of heavy oil and oil sands by the SAGD technology.

Description

technical field [0001] The invention relates to a pure oxygen diesel composite heat carrier generator system, which belongs to the technical field of oil extraction technology. Background technique [0002] Injecting saturated water vapor into oil layers for thermal recovery of heavy oil is one of the methods commonly used in countries all over the world. Injecting carbon dioxide, nitrogen, etc. Certain oil recovery effects and economic benefits have been achieved. The composite heat carrier generated by high-pressure air and diesel combustion is injected into the oil layer to enhance oil recovery. [0003] The pure oxygen-diesel composite heat carrier generator uses an oxygen-enriched machine to generate oxygen, and through an oxygen-enriched compressor supercharger, the pure oxygen is supercharged and diesel oil is airtightly burned to generate a composite heat carrier containing high-temperature carbon dioxide and water vapor, which carries the combustion heat. The therm...

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Problems solved by technology

[0005] At present, composite heat carrier generators generally use diesel oil as the main fuel and burn pressurized air to generate composite heat carriers. Although they have a high cost performance compared with conventional steam thermal recovery technology in terms of enhanced oil recovery and comprehensive benefits, However, the composite heat carrier generated by the combustion of diesel and air contains nitrogen, and its volume ratio to carbon dioxide is roughly 937:165. Under standard conditions, nitrogen is more than 5 times the volume of carbon dioxide, and the nitrogen content is too high. When applied to composite heat carrier SAGD technology Gas channeling is easy when mining heavy oil or oil sands, which brings certain technical limitations to the composite heat carrier oil augmentation technology

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