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. 12, 1982
Filed:
Nov. 28, 1980
Richard H Widmyer, Houston, TX (US);
Texaco Inc., White Plains, NY (US);
Abstract
A method for forming and assembling a well production and sand screen assembly in a well having a screen therein forming an outer annulus and a wash pipe internally of the screen forming an inner annulus comprising further (a) mounting a high pressure fluid pump means and a valve means on each wash pipe, inner annulus, and outer annulus, and (b) connecting the valve means in fluid communication with the high pressure fluid pump means for controlling the ingress and egress of the high pressure fluids and removed formation material for forming a sand pack in the well and simultaneously for applying and maintaining a positive fluid pressure against the overburden during work in the well for preventing cave-ins and sloughing of the unconsolidated formation well walls until the sand pack is formed.