新型水力增压理论研究

THEORITICAL STUDY OF NOVEL HYDRAULIC PRESSURIZING DEVICE

如何充分、有效地利用井底有限的水力能量 ,一直是石油钻井科技工作者所关心的一个研究问题。既要能够提高水力能量的利用率 ,同时又要易于井下实现 ,设计出这样一种装置是十分必要和迫切的。新型水力增压装置由此应运而生。文章简单介绍了国内外增压研究现状及应用情况 ,从理论上比较详细地探讨了新型井下水力增压装置的增压机理、增压装置腔室流体流动特性 ,建立井下水力增压物理模型及腔室流体流动模型以及影响因素的计算模型 。

How to utilize the limited downhol e hydraulic energy fully and effectively is always a research topic concerned by petroleum drilling scientific and technological circles and it is very necessar y and urgent to design such a device that not only can raise the utilization rat e of hydraulic energy but also is easy to be realized at downhole.For this reaso n,a novel hydraulic pressurizing device has been invented at this historic momen t.In the paper,the present situation of studying and applying the hydraulic pressuri zing at home and abroad is simply introduced;the pressurizing mechanism of the n ovel downhole hydraulic pressurizing device and its chamber fluid flow behaviors are discussed in detail in theory;and downhole hydraulic pressurizing physical model,chamber fluid flow model and influence factor calculation model are set up ,thus laying a theoritical foundation for farther studying the hydraulic pressur izing device.