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. 23, 1986
Filed:
Apr. 10, 1985
Roy R Vann, Katy, TX (US);
Emmet F Brieger, Nogal, NM (US);
Halliburton Company, Duncan, OK (US);
Abstract
Two or more spaced formations located downhole in a borehole are completed by employment of a string of perforating guns and by making a single trip to the wellbore. An upper and a lower gun device are tied together by a connecting tubing. The length of the tubing spaces the guns apart a selected amount. The gun string is run downhole and actuated, whereby the casing is perforated adjacent to the two spaced formations. Detonation of the upper gun forces an upper movable member associated with the connecting tubing to generate a pressure wave which is received by a lower movable member located at the upper end of the lower gun. The lower member is connected to cause detonation of the lower gun.