摘要
针对常规模型难以描述弱凝胶驱辅助多元热流体吞吐的问题,基于聚合物和凝胶非等温实验,综合考虑温度对聚合物凝胶吸附、黏度、水相渗透率等因素的影响以及顶底盖层热损失,开展了南堡35-2油田弱凝胶驱辅助多元热流体吞吐数值模拟研究。通过正交设计方法,以综合评价指标最大为目标,优化设计B6井组先导试验方案。油井实施后,周期生产时间延长17.2%,周期产油量增加24.4%,预测采收率提高7.3%。该开发方式对于合理开发海上稠油储量具有重要意义。
It is hard to describe weak gel drive assisting multiple thermal fluid throughput by using conventional model. In this regard,the numerical simulation has been made in Nanpu 35-2 Oilfield based on non-isothermal experiment of polymer and gel with consideration of the influence of temperature on absorption,viscosity,water-phase permeability of polymer and gel as well asthe heat loss of top and bottom caprock. Through orthogonal designing approach and with obtaining the best evaluation index as the goal,the pilot test plan of Well Group B6 has been optimized and designed. After it is used in the oil producer,the production period is prolonged by 17. 2%,the production is increased by 24. 4% and the forecast recovery ratio is increased by 7. 3%. The development mode is of great significance to the proper development of offshore heavy oil reserves.
出处
《特种油气藏》
CAS
CSCD
北大核心
2015年第2期115-118,156-157,共4页
Special Oil & Gas Reservoirs
基金
国家科技重大专项"海上油田丛式井网整体加密油藏工程技术示范"(2008ZX05057-003)
关键词
多元热流体吞吐
弱凝胶
数值模拟
非等温实验
海上油田
南堡35-2油田
multiple thermal fluid throughput
weak gel
numerical simulation
non-isothermal experiment
offshore oilfield
Nanpu 35-2 Oilfield
