The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2000
Filed:
Jul. 15, 1998
James Troutt, Burlington, KY (US);
Neil Mansuy, Kansas City, MO (US);
Layne Christensen Company, Mission Woods, KS (US);
Abstract
A method and apparatus for cleaning the producing areas of water wells including screens and the surrounding formations. Chemicals that may be used for cleaning the well are applied through a surge tube and forced from the tube by gas such as carbon dioxide. At the same time, gas is injected into the well through an injection line which terminates below the surge tube. The opposing forces from the chemical application and gas injection drive the chemicals through the screen, gravel pack, and into the formation to dislodge and dissolve materials that tend to plug the well. When the chemical application and gas injection are stopped, the pressure in the well is reduced to draw the dislodged materials into the well. They are removed by a submersible pump or gas lift.