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AssigneesChina Petroleum & Chemical Corporation, Steam Injection Technology Service Center of Shenglioilfield Sinopec
InventorsJun CHEN, Naifeng ZHANG, Xuezhan ZHAO, Bo MA, Gang XIAO, Bin YANG, Qingjun SHANG, Zhihong HUANG, Yue ZHANG, Yong LI, Chao CHEN, Linlin JIANG
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A gas-fired steam-injection boiler has a flue and a water supply pipeline. The flue is provided with a radiation section and a convection section. The water supply pipeline has, in the flue gas flow direction, a first pipe section located at an upstream portion of the convection section, a second pipe section is located at a downstream portion of the convection section, and a third pipe section arranged between the first pipe section and the second pipe section. In a water flow direction of the water supply pipeline, the second pipe section, the first pipe section and the third pipe section are arranged in sequence. By using a flue gas condenser, the temperature of flue gas can be further reduced, and the latent heat of vaporization of steam in the flue gas is absorbed to form condensate water.
A gas-fired steam-injection boiler for oil field, comprising a flue having a radiation section (1) and a convection section (2) that are arranged in a flue gas flow direction, and a water supply pipeline comprising a first pipe section, a second pipe section, and a third pipe section,
Dependencies are inferred from the claim text.