石油地质与工程2026，Vol.40Issue(3)：80-84,5.DOI:10.26976/j.cnki.sydz.202602010
海上稠油L油田多轮次热化学吞吐复合增效试验与机理
Experimental study and mechanism on compound synergistic effect of multi-cycle thermal-chemical huff-puff in offshore heavy oil L Oilfield
郑前 1胡厚猛 1王飞 1孙蓉 1潘玉萍 1戎凯旋 1赵心茹1
作者信息
- 1. 中海油田服务股份有限公司油田生产事业部,天津 300459
- 折叠
摘要
Abstract
Offshore heavy oil cold production wells in the Bohai Oilfield generally suffer from high crude oil viscosity,wellbore blockage,edge and bottom water breakthrough,and rapid production decline.Combined with the existing production string conditions,a combined synergistic technology of thermal-chemical huff-puff is proposed.Relying on the synergistic effect of hot water,gas and chemical agents,this technology can improve well productivity and delay water invasion.The well C3H in L Oilfield has undergone three rounds of combined thermal-chemical huff-puff stimulation,with a cumulative incremental oil production of 0.88×104 t,which further verifies the application feasibility of this technology in heavy oil cold production wells of the Bohai Oilfield.By analyzing the synergistic mechanism of thermal-chemical huff-puff and adopting reservoir numerical simulation to split and calculate the oil increment contribution of each technical measure,the oil contribution ratios of foam,viscosity reducer,hot water and synergistic effect are obtained as 64%,18%,10%and 8%,respectively.The contribution proportion of each synergistic mechanism is quantitatively clarified,which provides a reference for the subsequent optimization of construction parameters and the popularization and application of this technology in similar heavy oil oilfields in the Bohai Sea.关键词
稠油油田/热化学吞吐复合增效/油藏数值模拟/增油贡献度Key words
heavy oil field/thermal-chemical huff and puff synergism/reservoir numerical simulation/incremental oil contribution degree分类
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郑前,胡厚猛,王飞,孙蓉,潘玉萍,戎凯旋,赵心茹..海上稠油L油田多轮次热化学吞吐复合增效试验与机理[J].石油地质与工程,2026,40(3):80-84,5.
