一种新的剩余油研究方法初探  

Preliminary Researches to a New Method of Studying Remaining Oil

作　　者：涂兴万[1] 潘艇[1] 王淑玉[2] 彭秋燕 

机构地区：[1]中原石油勘探局勘探开发科学研究院,河南省濮阳市457001 [2]中原石油勘探局经济技术信息中心 [3]中原石油勘探局档案管理中心

出　　处：《断块油气田》1998年第3期43-46,53,共5页Fault-Block Oil & Gas Field

摘　　要：依据数值模拟非均质地质模型的水驱油动态，建立了切合油水井生产实际的动态劈分方程。该方程考虑沉积相、渗透率级差、生产层段射开程度、井距等多项影响因素，计算井组、小层的孔隙体积注入倍数，以非稳定一维驱替的前缘推进方程为数学模型，利用分流量方程（曲线）计算井间驱替前缘含水饱和度，然后用插值法得到剩余油分布。经运用于文13北块，取得初步成功。该方法适用于小断块油藏，在微机上即可简便实现。Based on the water-flooding behaviors of the heterogeneous geological model with numerical simulation,per formance cleavage equation of oil and water wells is set up in the light of production realities. Together with many influence factors such as sedimentary facies, permeability contrasts, degree of per forating in pay intervals of well groups etc, the equation can calculate the poreinjection volume of well groups and substratum. Use nonstationary frontal advance equation in one dimension displacement as mathematical model, and make the use of fractional flow equation we can calculate frontal water saturation in interwell displacement, and then obtain the distribution of remaining oil by interpolation. The method was successfully used in North Block Wen 13, it can simply be completed on computer.

关 键 词：剩余油 数值模拟 含水饱和度 油藏 

分 类 号：TE319[石油与天然气工程—油气田开发工程]