杏4-6面积聚驱后水驱精细挖潜数值模拟研究

发布时间：2018-05-10 21:36

本文选题：分层注聚 + 停高渗　；参考：《东北石油大学》2015年硕士论文

【摘要】：聚合物驱为大庆油田的高产和稳产发挥了巨大作用,聚合物驱进一步提高油藏采收率后,仍有一部分原油残留在地层中未被采出,因此开展聚合物驱后水驱精细挖潜措施研究对聚驱剩余油挖潜、进一步提高采收率以及指导后续注聚区块聚合物驱开采有着至关重要的意义。本文目标区块为大庆油田杏4-6面积区块,目标区块水驱后进行聚合物驱。利用Petrel地质建模软件建立目标区块水驱阶段相控三维地质模型,结合Eclipse数值模拟软件对全区水驱阶段进行历史拟合,并研究其水驱后剩余油分布类型及成因;针对目标区块聚驱目的层建立其相控三维地质模型,利用分层注聚历史拟合技术对聚驱阶段进行历史拟合,并研究聚驱后剩余油分布情况;分析聚驱后剩余油分布类型及成因,进行后续水驱开发效果预测。针对聚驱后水驱精细挖潜措施调整,主要从停高渗、压裂、堵水、注采系统调整以及周期注水这五个方面进行研究。首先分析目标区块后续水驱潜力的分布,针对后续水驱潜力较大的地区,分别进行上述调整措施研究;对典型停高渗注入井驱油效果进行分析并提出目的区块目的层停高渗的措施方案;根据压裂、堵水及注采系统调整原则选取油水井进行相应的措施调整,并对措施效果进行分析;最后综合上述效果分析结果给出杏4-6面积井网聚驱后水驱挖潜措施调整最优措施方案。
[Abstract]:Polymer flooding has played a great role in high production and stable production in Daqing oilfield. After polymer flooding further improves oil recovery, a part of the residual oil remains in the formation. Therefore, the study on the fine potential of water flooding after polymer flooding has been carried out to explore the potential of residual oil for polymer flooding, to further improve the recovery rate and to guide the follow-up polymer injection area. The block polymer flooding is of vital significance. The target area is the 4-6 area block of apricot area in Daqing oilfield. The target block is driven by polymer flooding after water flooding. The phase controlled three-dimensional geological model of the target block water drive phase is established by using the Petrel geological modeling software, and the water flooding stage of the whole area is fitted with the Eclipse numerical simulation software. The distribution types and causes of residual oil after water flooding are studied. A three dimensional geological model is established for the target zone of the target block polymer flooding. The historical fitting of the polymer flooding stage is made by the stratified polymer injection history fitting technique, and the distribution of residual oil after the polymer flooding is studied. The distribution types and causes of residual oil after the polymer flooding are analyzed, and the subsequent water flooding development is carried out. Effect prediction. According to the adjustment of water flooding fine digging measures after polymer flooding, mainly from five aspects of stopping high seepage, fracturing, water plugging, injection production system adjustment and periodic water injection. First, the distribution of the following water flooding potential in the target area is analyzed, and the above adjustment measures are carried out according to the larger potential area of the follow-up water flooding. The effect of oil flooding in high permeability injection well is analyzed and the measures to stop high permeability of target area are put forward. According to the principle of fracturing, water plugging and injection production system adjustment, the adjustment of oil and water wells is selected and the effect is analyzed. Finally, the results are integrated with the results of the 4-6 area of apricot area. Adjust the optimal measures.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE357.6

【共引文献】