摘要
针对多分支水平井产能预测方法繁多的现状,在深入调研国内外相关文献后,分类阐述了当前多分支水平井产能预测研究方法—解析法和半解析法。解析产能预测模型由完全对称的分支井井型发展到了不完全对称以及鱼骨井模型,选取了代表性的预测模型进行实例运算对比,结果表明考虑弯曲造斜度环形裂缝群模型更符合现场模型。半解析法是指考虑水平井筒变质量规律的油藏渗流和井筒流动的耦合模型,更适应于复杂地层和任意结构井型,是目前的研究热点,但目前尚未有统一的模型出现。
For the various methods of multi-branched horizontal well productivity prediction, it is stated separately with analytical method and semi-analytical method alter in-depth research related literature at domestic and overseas .The evolution of the analytical productivity prediction model be from complete sysmmetry multiple wellbore to non-complete sysmmetry multiple wellbore and herringbone structure well. The representative of productivity prediction models is selected for example computation comparison. The result shows that the ring fracture swarm model which considers bending deflecting effect is more accord with the field model Semi-analytical method refers to coupling reservoir seepage and horizontal well flow in the case of considering variable mass flow in the wellbore. It is more adapted to the complex formation and arbitray structure well. There is no unified model as a consequence the studying of the coupled model becomes a hotspot at present.
出处
《广东化工》
CAS
2014年第10期16-18,共3页
Guangdong Chemical Industry
关键词
分支井
产能预测
解析
耦合
变质量流
multi-branchedwell
productivity prediction
analytical
coupled model
variable mass flow
