Wells – Processes – Separate steps of fracturing or attacking formation
Patent
1990-10-03
1992-01-14
Suchfield, George A.
Wells
Processes
Separate steps of fracturing or attacking formation
166300, 166308, 252 8551, E21B 4326
Patent
active
050801708
ABSTRACT:
Low permeability formations are hydraulically fractured with a fracturing fluid which includes a material capable of (1) bonding fine formation particles to prevent movement of the particles into and within the formation and (2) forming a permeability-reducing skin at the formation/fluid interface to reduce fluid leak-off into the formation. The stabilizing and fluid leak-off reducing material is comprised of a water soluble polymer and an alkaline potassium salt.
REFERENCES:
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patent: 4660640 (1987-04-01), Hoskin et al.
patent: 4735265 (1988-04-01), Hoskin et al.
patent: 4785883 (1988-11-01), Hoskin et al.
patent: 4842073 (1989-06-01), Himes et al.
Cantu Lisa A.
Whitebay Lee E.
Collins Richard W.
Conoco Inc.
Suchfield George A.
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