Patent · US Active

Methods and compositions for sealing fractures, voids, and pores of subterranean rock formations

US7741247B2 · kind B2 · utility

7Cited by
31References
19Claims
0Family size

Inventor

Key dates

Filing dateFeb 7, 2007
Grant dateJun 22, 2010
Priority date—
Expiry dateMar 25, 2027

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B33/138
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A region of a borehole with one or more openings to be sealed off, such as one or more fractures, voids, and or pores, may or may not be sealed off around a tubular string with a borehole seal such as a packer or plug. A carrying fluid may be utilized to transport a filtration material into the opening to create a bridge, which at least partially seals the opening, but still provides a flow path that permits fluid flow therethrough. A solid material and/or settable material may then utilize the fluid flow subsequently or be simultaneously spotted with or behind the filtration material to thereby form compositions which effectively seals off the flow path into the one or more openings.

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