In order to solve the problem of limited makeup removal ability of a single surfactant of Peg-20 glyceryl triisostearate in makeup remover,an efficient system was prepared which contained PEG-20 glyceryl triisostearat...
the financial support from the Natural Science Foundation of China(Grant Nos.52222401,52234002,52394250,52394255);Science Foundation of China University of Petroleum,Beijing(Grant No.ZXZX20230083);other projects(ZLZX2020-01-07-01)。
In extended-reach or long-horizontal drilling,cuttings usually deposit at the bottom of the annulus.Once cuttings accumulate to a certain thickness,complex problems such as excessive torque and drag,tubing buckling,an...
The work is supported by National Science and Technology Major Project of the Ministry of Science and Technology of China“High Efficiency Oil Production and Supporting Technology Demonstration on Bohai Oilfield”(No.2016ZX05058-003).
With the extensive application of polymer flooding technology in offshore oilfields,the plugging in polymer injection wells has become more and more severe,which seriously affects the oil displacement effect and regul...