【Frontiers of HaiChuan Chemical Technology】Application of space-based green energy heating technology in heat storage heat exchange devices for crude oil transportation in oil fields

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On the morning of August 6, the sky over the Gudong oil field in the Shengli Oil Field, Dongying City, Shandong Province, was covered with thin clouds. Pointing to a set of devices equipped with \"photovoltaic panels\" in the southwest corner of the Gudong 827P5 well site, Hu Jianjun, an employee from the injection and production control team at the Safety Production Command Center of the Fourth Oil Production Management Area, explained: \"These are thermal collection panels that utilize space-based green energy heating technology. The temperature of their panels remains below that of the surrounding environment, allowing them to absorb various types of radiation from space; thus, they can provide heat even on cloudy days.\" ” 　　“Radiation is a way of heat transfer. ”Hu Jianjun gave an example, saying, “When sitting next to a heater, your face feels hot – that’s thermal radiation.” Photovoltaic power generation and solar heating require fair weather, and operations should be stopped as soon as the conditions become unfavorable. The heat-condensing plate absorbs radiant energy; it acts like a ‘cold face’ that ‘absorbs’ anything ‘hot’. ”Zhang Hongjun, a technician from the New Energy Team at Gudong Oil Production Plant, added immediately, “This space-based green energy heating device utilizes the principle of thermal radiation by absorbing energy that travels through space in the form of electromagnetic waves and converting it back into heat energy.” ” 　　It is understood that the Gudong 827P5 wellsite has two heavy oil wells that require wellhead heating to raise their temperature. Generally, heavy oil is heated using methods such as fuel furnaces, electricity, solar energy, and wind power, but each method has its own drawbacks. While traditional fuel heating has problems such as high emissions and energy consumption, solar thermal and wind-based heating suffer from the drawback of requiring large amounts of space, and being unable to operate in the absence of sunlight or wind. The radiant heating method overcomes these drawbacks. Even in harsh weather conditions, the heat condensation plate can absorb heat and convert low-quality thermal energy into high-quality heat. 　　Before 2022, Shandong Wuhua Petroleum Equipment Co., Ltd. collaborated with Gudong Oil Production Plant. Through joint efforts by the technical personnel from both parties, the Space Green Energy Heating Technology was developed, and two **patents were obtained**: “A Method and Device for Reverse Heating at Constant Pressure in Intermittent Temperature Ranges” and “A Heat Storage Heat Exchange Device and Method Based on Crude Oil Transportation in Oil Fields”. 　　“Compared to fossil fuels, space energy, as a renewable, safe, pollution-free green energy source that does not require transportation, can meet the heat requirements in production and daily life. Especially in the oil and gas production sector, it can replace gas-fired heaters, offering greater environmental benefits and efficiency. ”said Luo Guangcai, chairman of Wuhua Company. 　　It is reported that the principle of space-based green energy heating technology lies in the fact that a low-temperature refrigerant enters the heat absorption plate, where it continuously absorbs heat and gradually warms up before entering the heat pump. The green electricity generated by photovoltaic systems during the day is then used to activate the heat pump for heating, with the resulting heat being stored in an efficient heat storage tank. This heat is then used to supply continuous heating to heavy oil 24 hours a day, via heat exchangers. After its temperature drops, the refrigerant continues to cool down during the off-peak hours at night and then absorbs heat from the condensation heat plate. After its first trial use in the Shengli Oil Field, data shows that compared to electric heating, this space-based green energy heating technology can save more than 3.5 times as much electricity, resulting in cost savings of over 7 times in terms of heating expenses. “This represents a combined innovation of multiple mechanisms and methods, which meets the flexible production requirements of oil fields and enables the maximum utilization of green electricity. ”Zhang Hongjun said. 　　“Over the course of a day, this can save 120 cubic meters of natural gas, while also raising the temperature of the heavy oil from 33°C to 50°C. ”Since the adoption of space-based green energy heating technology in 2023, Hu Jianjun has been working with this system and is well aware of its advantages: it expands the sources of heat energy, increases heat collection efficiency by over 30%, is safe and reliable, enables efficient and low-cost heat absorption, and is worthy of promotion. ” 　　Since the energy crisis of the 1970s, space-based green energy has gradually become a focus of research both domestically and internationally. Zhang Hongjun believes that space-based green energy heating technology achieves three benefits—energy savings, cost reduction, and carbon emission cuts—through its integrated design. It offers a new paradigm for the green transformation of oil and gas production, and has the potential to trigger a thermal energy revolution in the field of heavy oil extraction.