Patent · US Expired

Isolation of subterranean zones

US6634431B2 · kind B2 · utility

119Cited by
363References
58Claims
0Family size

Inventors

Key dates

Filing dateOct 3, 2001
Grant dateOct 21, 2003
Priority date—
Expiry dateNov 14, 2021

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B43/305
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

One or more subterranean zones are isolated from one or more other subterranean zones using a combination of solid tubulars and perforated tubulars.

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