石油勘探与开发Issue(2)：188-193,6.DOI:10.11698/PED.2013.02.07
蒸汽辅助重力泄油改善汽腔发育均匀性物理模拟
Physical simulation of improving the uniformity of steam chamber growth in the steam assisted gravity drainage
摘要
Abstract
In steam assisted gravity drainage (SAGD) process, there is an uneven distribution of steam chamber growth along the whole length of the horizontal well. In order to solve this problem, a three-dimensional physical model of a high-temperature and high-pressure SAGD well pair was built. Several significant reservoirs and operation parameters for SAGD were also scaled in the model size, which was based on SAGD pilot development of a typical reservoir in China. Three experiments were conducted using the above-mentioned high-temperature and high-pressure physical model. Test 1 simulated the slow steam chamber growth at the toe end and uneven distribution of steam chamber growth. Test 2 tested the regulation strategy with dual tubing strings to adjust the steam chamber based on Test 1−combining the long and short tubing strings for injection well and production well. Test 3 tested the regulation strategy with U-shape wellbore to adjust the steam chamber. The results showed that the two regulation strategies were effective for recovering steam chamber growth at the toe end and making steam chamber growth uniform along the length of SAGD wellbore. After regulating, the oil rate increased significantly.关键词
蒸汽辅助重力泄油(SAGD)/高温高压/三维比例物理模拟/汽腔发育Key words
steam assisted gravity drainage (SAGD)/high-pressure and high-temperature/3-D scaled physical simulation/steam chamber growth分类
能源科技引用本文复制引用
马德胜,郭嘉,昝成,王红庄,李秀峦,史琳..蒸汽辅助重力泄油改善汽腔发育均匀性物理模拟[J].石油勘探与开发,2013,(2):188-193,6.基金项目
国家科技重大专项“稠油/超稠油开发关键技术”(2011ZX-05012) （2011ZX-05012）
