Patent · US Active

Geometric/mechanical apparatus to improve well perforator performance

US7600476B1 · kind B1 · utility

8Cited by

15References

6Claims

0Family size

Assignee

The United States of America as represented by the Secretary of the Army · US

Inventors

Ernest L. Baker · Wantage, US
Arthur S. Daniels · Rockaway, US

Key dates

Filing date	Mar 24, 2006
Grant date	Oct 13, 2009
Priority date	—
Expiry date	Oct 18, 2026

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF42B1/02
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

Shaped charges that generate fan-like jets can produce slotted holes in rock formations. A shaped charge includes a case having on open front end, an external surface and a longitudinal axis, all transverse cross-sections of the case being bi-symmetric; an explosive material disposed in the case, the case including at least one opening extending from the external surface to the explosive material for initiation of the explosive material; and a liner disposed over the explosive material; wherein a pair of substantially identical longitudinal slots are formed on the external surface, the longitudinal slots being about 180 degrees apart.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.