Petrochina Company Limited

Beijing Volcano Engine Technology Co., Ltd.

China University of Petroleum

Kms Oil Field Chemicals & Technical Services Ltd.

Zhong Shi Da Engineering Research Center Co. Ltd.

Zhao Luo

Yuan Yuan Li

Jie Zuo

Cuihong Zhou

Fujian Zhou

Jiaxin Sun

Jiangwen Xu

Xugang Wang

Xiuhui Li

Zezhong Wang

Shaozhong He

Fengtian Wang

Erdong Yao

Xiongfei Liu

The present disclosure discloses a method and apparatus of comparing data of heterogeneous data sources, a device, and a storage medium. The method includes: obtaining first metadata and second metadata corresponding to heterogeneous data sources to be compared; determining a data isomorphism benchmark from the heterogeneous data sources based on the first metadata and the second metadata, and determining a first target data table and a second target data table corresponding to the heterogeneous data sources; associating the first target data table with the second target data table to determine a comparison indicator of the heterogeneous data sources; determining, based on the first target data table and the second target data table, a target comparison manner between the first target data table and the second target data table; and generating a data comparison result corresponding to the comparison indicator.

Method and apparatus of comparing data of heterogeneous data sources, device, and storage medium

A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.

Composition of nano-emulsion having small particle size and ultra-low concentration and a preparation method thereof

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Beijing, China

Zhao Luo