摘要
目前中国东部许多砂砾岩油田相继进入高含水开采后期，由于水驱推进不均匀，矿物和胶结物组分的差异以及地下流体性质的不断变化，造成储集层物性变化复杂，纵、横向上非均质性更为严重，变化机理解释及其它相关研究难度加大。在对泌阳凹陷双河油田和下二门油田注水开发后期砂砾岩储集层物性特征的研究中，根据精选出来的连续测试多年（至少５ａ以上）的油层吸水及产液剖面，利用测井资料进行物性、岩性和相带解释，依据吸水及产液强度对油层物性变化趋势进行分类，并直接与孔隙结构研究技术相结合。该方法可在中国东部砂砾岩及其它油藏储集层评价中推广使用。照片２图１表４（郭海莉摘）
Many oilfields in East China, like Shuanghe and Xiaermen, have entered
into the development stage with high watercut in succession. At this stage,
waterdrive process is uneven and minerals, cement materials as well as fluid
properties in the formation vary frequently. These could result in unpredictable
variations in petrophysical properties and make formation heterogeneity more
serious both vertically and horizontally. Mechanism interpretation thus becomes
more difficult. Dynamic test analysis is a method which can be used specifically
to study variation characteristics of reservoir at the later stage of development.
Based on the continuous measurement of imbibition (production) profiles and
lithologic, facies and petrophysical parameters derived from log interpretation, the
relationship between imbibition (production) strength and petrophysical variation
trend can be classified and directly related to the techniques used in
porestructure study. By integrating dynamic and static test, macroscopic and
microscopic reservoir evaluations as well as mechanism study, a new method
which is suitable for evaluating sandgravel mixed reservoirs has been established
and it could be widely applied to many oilfields in East China.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1999年第2期60-63,共4页
Petroleum Exploration and Development
关键词
油田动态
动态测试资料
砂砾岩
油层
物性变化
Performance, Testing, Quantitative analysis, Reservoir physical property,
Heterogeneity, Change, Feature, Shuanghe oil field, Xiaermen oil field
