Charles Richard Harrell

US Patent:

7650947, Jan 26, 2010

Filed:

Feb 28, 2007

Appl. No.:

11/712188

Inventors:

Joseph Albert Henke - Lewisville TX, US
Keith Alan Maxey - Tye TX, US
Charles Wayne Harrell - Graham TX, US

Assignee:

Titan Specialties, Ltd. - Pampa TX

International Classification:

E21B 19/16
E21B 17/10
E21B 29/02

US Classification:

166380, 1662426, 166297

Abstract:

A well completion method and apparatus comprises a pipe string having a bottom attached boring bit and scraper. Above the bit at designated well fluid production locations, perforation assemblies are integrated into the pipe string. Each perforation assembly comprises a by-pass circulation mandrel and a perforation gun. The circulation mandrel is secured at opposite distal ends in threaded Y-adapter boxes. The perforating gun is secured in collar bores respective to the opposite end Y-adapters.