Patents by Inventor Zhiming JING

Zhiming JING has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Recoverable instant thickening acid and its reusing method
    Patent number: 10494567
    Abstract: A recoverable instant thickening acid and its reusing method is usable for the recycling and reusing of a gas well carbonate reservoir acidizing fluid and production stimulation operation. The recoverable instant thickening acid includes the following components in weight percentage: 1.5-3 parts of a thickener, 0.5-3 parts of potassium chloride and 100 parts of a hydrochloric acid solution, wherein the thickener is a mixture composed of a mass ratio of 40%-70% of N-lauryl-N?-hydroxyethyl-N?-hydroxypropyl ethylenediamine propionate or its derivatives, 4%-12% of ethanol and 18%-56% of water. With the thickening acid for performing an acidizing treatment, the residual acid solution can be re-prepared as a thickening acid for an acidizing treatment without a chemical treatment, assisting the green and environmentally friendly production and sustainable development of gas fields.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 3, 2019
    Assignee: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY COMPANY
    Inventors: Hu Sun, Zuwen Wang, Mian Zhang, Yan Gao, Xiuli Shao, Jing Li, Gaihong Wang, Dongrui Yuan, Zhiming Jing, Junfang Xu
  • RECOVERABLE INSTANT THICKENING ACID AND ITS REUSING METHOD
    Publication number: 20180142138
    Abstract: A recoverable instant thickening acid and its reusing method is usable for the recycling and reusing of a gas well carbonate reservoir acidizing fluid and production stimulation operation. The recoverable instant thickening acid includes the following components in weight percentage: 1.5-3 parts of a thickener, 0.5-3 parts of potassium chloride and 100 parts of a hydrochloric acid solution, wherein the thickener is a mixture composed of a mass ratio of 40%-70% of N-lauryl-N?-hydroxyethyl-N?-hydroxypropyl ethylenediamine propionate or its derivatives, 4%-12% of ethanol and 18%-56% of water. With the thickening acid for performing an acidizing treatment, the residual acid solution can be re-prepared as a thickening acid for an acidizing treatment without a chemical treatment, assisting the green and environmentally friendly production and sustainable development of gas fields.
    Type: Application
    Filed: May 8, 2015
    Publication date: May 24, 2018
    Inventors: Hu SUN, Zuwen WANG, Mian ZHANG, Yan GAO, Xiuli SHAO, Jing LI, Gaihong WANG, Dongrui YUAN, Zhiming JING, Junfang XU