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:
Oct. 18, 2005
Filed:
Nov. 24, 2000
Wilhelmus Hubertus Paulus Maria Heijnen, Velsen, NL;
Maria Joao Ramos Correia Morato Pena, Rijswijk, NL;
Wilhelmus Hubertus Paulus Maria Heijnen, Velsen, NL;
Maria Joao Ramos Correia Morato Pena, Rijswijk, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A device for injecting a fluid into an earth formation surrounding a wellbore, comprising a body suitable to be arranged in the wellbore and being provided with means for connecting the body to a tubing, a fluid chamber for storage of said fluid, and a pair of inflatable packers arranged to isolate a portion of the wellbore between the packers from the remainder of the wellbore upon inflation of the packers, the body further being provided with an outlet port located between the packers for flow of fluid from the fluid chamber to outside the device, means for inflating the packers upon the occurrence of a primary fluid pressure in the tubing, and means for ejecting fluid from the fluid chamber via the outlet port to outside the device upon the occurrence of a secondary fluid pressure in the tubing, wherein the secondary fluid pressure is higher than the primary fluid pressure.