固相沉积模型在高凝油藏注水开发中的应用

doi:10.7623/syxb201501012

石油学报 ›› 2015, Vol. 36 ›› Issue (1): 101-105.DOI: 10.7623/syxb201501012

固相沉积模型在高凝油藏注水开发中的应用

姜彬¹, 邱凌¹, 刘向东², 杜定宇², 李雪¹, 李珂¹, 陈翰¹

1. 中海油研究总院北京 100027;
2. 中海石油乌干达有限公司北京 100007

收稿日期:2014-06-06 修回日期:2014-09-09 出版日期:2015-01-25 发布日期:2014-12-09
通讯作者: 姜彬, 男, 1984年8月生, 2007年毕业于西南石油大学石油工程专业, 2010年获西南石油大学油气田开发工程专业硕士学位, 现为中海油研究总院油藏工程师, 主要从事海外油气田开发工作.Email:jiangbin@cnooc.com.cn
作者简介:姜彬, 男, 1984年8月生, 2007年毕业于西南石油大学石油工程专业, 2010年获西南石油大学油气田开发工程专业硕士学位, 现为中海油研究总院油藏工程师, 主要从事海外油气田开发工作.Email:jiangbin@cnooc.com.cn
基金资助:
国家重大科技专项(2011ZX05030-005)资助.

Application of solid deposition model to water flooding simulation in high pour point oil reservoir

Jiang Bin¹, Qiu Ling¹, Liu Xiangdong², Du Dingyu², Li Xue¹, Li Ke¹, Chen Han¹

1. CNOOC Research Institute, Beijing 100027, China;
2. CNOOC Uganda Company Limted, Beijing 100007, China

Received:2014-06-06 Revised:2014-09-09 Online:2015-01-25 Published:2014-12-09

摘要/Abstract

摘要：

传统的油-水两相热采模型在进行高凝油注水开发的数值模拟过程中,仅能考虑黏度和相对渗透率曲线随温度变化的影响,而无法表征蜡的固相沉积作用对储层物性的伤害,这种物性变化也是应用不同温度下相对渗透率曲线的前提.为弥补两相热采模型中的这一缺陷,提出了利用固相沉积模型模拟高凝油藏开发,建立了油-水-固三相的热采数值模拟方法,通过与两相热采模型的模拟结果对比,表明蜡沉积对储层渗透率的伤害是高凝油田早期注水开发中最大的影响因素.同时结合热采模型获得了不同注水温度下蜡沉积半径及伤害程度等的定量认识,对更好地研究和预测高凝油田注水开发动态具有重要的指导意义.

关键词: 高凝油, 数值模拟, 蜡沉积, 固相沉积, 热力采油

Abstract:

Conventional water-oil two-phase thermal recovery modeling for numerical simulation of waterflooding in high pour point oil reservoir only considers the effects of changes in viscosity and relative permeability curves with varying temperatures. This approach is unable to characterize the damage of wax solid deposition to formation permeability, although such permeability changes form the premise for application of relative permeability curves at different temperatures. To address this issue, solid deposition modeling is used to simulate the development of high pour point oil reservoir, and a novel numerical simulation method of oil-water-solid three-phase thermal recovery modeling is developed. A comparison analysis of thermal modeling data between the three-and two-phase methods shows that damage to formation permeability by wax deposition is the most significant factor influencing early waterflooding in high pour point oil field. Additionally, quantitative information including the radius of wax deposition and the extent of permeability damage at different injection temperatures are obtained through thermal recovery modeling. The results have great implications for better studying and predicting the dynamic characteristics of waterflooding in high pour point oil field.

Key words: high pour point oil, numerical simulation, wax deposition, solids deposition, thermal recovery

中图分类号:

TE357.4

姜彬, 邱凌, 刘向东, 杜定宇, 李雪, 李珂, 陈翰. 固相沉积模型在高凝油藏注水开发中的应用[J]. 石油学报, 2015, 36(1): 101-105.

Jiang Bin, Qiu Ling, Liu Xiangdong, Du Dingyu, Li Xue, Li Ke, Chen Han. Application of solid deposition model to water flooding simulation in high pour point oil reservoir[J]. Acta Petrolei Sinica, 2015, 36(1): 101-105.

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固相沉积模型在高凝油藏注水开发中的应用

Application of solid deposition model to water flooding simulation in high pour point oil reservoir

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