The Daqing oilfield was put into development in 1960.At present, it is in the late stage of ultra-high water cut period.Various displacement modes coexist, and the reservoir development and management is complex and difficult.In order to control the blue square tablecloth decline of production, the number of new drilling wells increases year by yea
The paper deals with the issues related to the friction of carbon-carbon composite against steel in the medium of hydraulic fluid.Variation of friction coefficient from load, speed and temperature is analyzed.Comparison of antifriction properties of Hardcarb TP material with fluoroplastic modified by radiation treatment lagoon (snes is performed.It
Background and Objectives: Vaccination being the only way to reduce mortality from the dreaded COVID-19 disease, the vaccine was introduced in India as per the advice of the National Expert Group on January 16, 2021.Duration of immune response elicited by the vaccines has always been a matter of content.With new variants emerging every other day, t
Abstract Despite growing awareness of the importance of controlling neglected tropical diseases as a contribution to poverty alleviation and achieving the Millennium Development Goals, there is a need to up-scale programmes to achieve wider public pata de avestruz botas health benefits.This implementation deficit is attributable to several factors