基于动态数据的底水油藏水平井水脊增长模型GROWTH MODEL OF THE HORIZONTAL-WELL WATER CREST IN THE BOTTOM-WATER OIL RESERVOIR BASED ON THE DYNAMIC DATA
侯亚伟
HOU Yawei
摘要(Abstract):
大量室内实验和矿场实践表明,底水油藏含水上升以垂向水锥(定向井)或水脊(水平井)形式存在。为了准确描述底水油藏水平井水脊形态的演化过程,从物质平衡原理出发,推导了水脊体积与生产动态数据之间的关系,结合水平井水脊形态,建立了基于动态数据的水平井水脊增长模型。已知相渗及矿场资料的条件下,应用该理论模型可以简便快捷地计算底水驱水平井水脊形态随时间的演化规律。通过渤海典型底水油藏的应用表明,该理论方法计算过程简便,预测结果可靠,对底水油藏水平井水脊预测具有重要的指导意义。
A large number of laboratory tests and field practices show that the water cut rise of the bottom water reservoir is caused by the bottom-water vertical coning( for directional well) or the water cresting( for horizontal well). In order to accurately describing the evolutionary process of the horizontal well bottom water cresting,the relationship between the volume of the water crest and the dynamic data of production was derived by the material balance principle. A horizontal well water cresting growth model was built based on the dynamics of the horizontal well water cresting. Under the conditions of the known relative permeabilities and field data,the evolutional laws of the bottom-water-flooded horizontal well cresting with the time can be calculated easily and fast by the application of this theoretical model. The applications in Bohai typical bottom water oil reservoirs prove that this theoretical method calculation is simple and rapid,and moreover the predicted results are reliable. Thus the theoretical model possesses important guiding significance for the prediction of the horizontal-well water cresting in the bottom-water oil reservoir.
关键词(KeyWords):
底水油藏;水平井;水脊形态;增长模型;动态数据
bottom-water oil reservoir;horizontal well;water crest morphology;growth model;dynamic data
基金项目(Foundation): “十二五”国家科技重大专项“海上油田丛式井网整体加密及综合调整油藏工程技术示范”(2011ZX05057001)
作者(Author):
侯亚伟
HOU Yawei
DOI: 10.19597/j.issn.1000-3754.201706001
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- 底水油藏
- 水平井
- 水脊形态
- 增长模型
- 动态数据
bottom-water oil reservoir - horizontal well
- water crest morphology
- growth model
- dynamic data