石油勘探与开发2011，Vol.38Issue(4)：452-462,11.
稠油油藏注蒸汽开发后期转火驱技术
Fire-flooding technologies in post-steam-injected heavy oil reservoirs
摘要
Abstract
The mechanism and problems associated with development engineering of fire-flooding in post-steam-injected heavy oil reservoirs was studied using ID & 3D physical simulation experiments and reservoir numerical simulation. The temperature of combustion zone decreased and high-temperature zone enlarged because there existed secondary water formed during steam injection, which could absorb and carry heat towards producers out of the combustion front during fire flooding, but high saturation of water in layers caused by secondary water had less influence on the quantity of fuel deposit and air consumption, hi the process of 3D fire flooding experiment, air override was observed during the combustion front moving forward and resulted in a coke zone in the bottom of the layer, and the ultimate recovery factor reached 65% on fact that the remaining oil saturation within the coke zone was no more than 20%. The flooding model, well pattern, well spacing, and air injection rate were optimized according to the specific property and the existed well pattern in the post-steam-injected heavy oil reservoir, and the key techniques of ignition, lifting, and anticorrosion was also selected at the same time. The pilot of fire flooding in the HI block in the Xinjiang Oilfield was carried out from 2009 based on these research works, and now begins to show better performance.关键词
稠油油藏/火烧油层/注蒸汽/湿式燃烧/物理模拟/数值模拟Key words
heavy oil reservoir/ fire flooding/ steam injection/ wet combustion/ physical simulation/ numerical simulation分类
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关文龙,席长丰,陈亚平,张霞,木合塔尔,梁金中,黄继红,吴键..稠油油藏注蒸汽开发后期转火驱技术[J].石油勘探与开发,2011,38(4):452-462,11.基金项目
国家科技重大专项“火烧驱油技术研究与现场试验”(2008ZX05012-003) （2008ZX05012-003）
