Patent · US Active

Wellbore fluid comprising a base fluid and a particulate bridging agent

US8006761B2 · kind B2 · utility

6Cited by

12References

21Claims

0Family size

Assignee

BP EXPLORATION OPERATING COMPANY LIMITED · GB

Inventors

Simon Neil Duncum · Bracknell, GB
Christopher Alan Sawdon · Par, GB

Key dates

Filing date	Nov 10, 2010
Grant date	Aug 30, 2011
Priority date	—
Expiry date	Nov 10, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2208/18
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A wellbore fluid comprising a base fluid and a particulate bridging agent comprised of a sparingly water-soluble material selected from the group consisting of melamine (2,4,5-triamino-1,3,5-triazine), lithium carbonate, lithium phosphate (Li3PO4), and magnesium sulfite.

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