Patents by Inventor C. Curtis

C. Curtis 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).

  • Method of obtaining increased production in wells
    Patent number: 3930539
    Abstract: In order to increase the productivity of oil and gas wells, hydrochloric acid and phosphoric acid are pumped into the well. Thereafter, aqueous ammonia is forced into the bottom of the well by nitrogen under pressure. This produces a violent exothermic reaction in the formation around the bottom of the well which emulsifies the paraffin and disintegrates the limestone, so as to open the formation by forming large passages and cavities over large areas and distances, permitting the oil or gas to flow freely through the formation to the well bore.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: January 6, 1976
    Inventor: Arvel C. Curtis