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:
Sep. 29, 1998
Filed:
Mar. 11, 1997
Gary V Pratt, Woodward, OK (US);
Ronald F Sloan, Elk City, OK (US);
Amoco Coporation, Chicago, IL (US);
Abstract
An apparatus and method for automatically dispensing chemical sticks into a well bore is provided. In the preferred form, the apparatus is for dispensing soap sticks to unload an oil/gas producing well of fluid, e.g., salt water, built-up therein. The apparatus is a tubular receptacle with an upper storage section and a lower receiving chamber with sticks stacked end-to-end in the storage section and fed, as by gravity feed, to the receiving chamber after a stick is dispensed therefrom. An operating mechanism controls dispensing so that a stick is dispensed based on a predetermined timing sequence or when a predetermined well condition is reached. A preferred soap stick for use in the apparatus includes a water-soluble, flexible, resilient sheath encasing the stick body tightly therein.