Patent · US Active

Drilling fluid containing carbon nanotubes

US8469118B2 · kind B2 · utility

21Cited by
4References
22Claims
0Family size

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Key dates

Filing dateAug 29, 2008
Grant dateJun 25, 2013
Priority date—
Expiry dateSep 7, 2029

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K8/36
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A viscoelastic drilling fluid for drilling in underground rock formations, comprising

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