Wells – Processes – Placing fluid into the formation
Reexamination Certificate
2007-09-20
2009-06-02
Bagnell, David J (Department: 3672)
Wells
Processes
Placing fluid into the formation
C166S280100
Reexamination Certificate
active
07540328
ABSTRACT:
A dry solid composition is disclosed that, when added to an aqueous liquid, provides a slurry that can be used in sandstone acid fracturing. The slurry generates hydrofluoric acid downhole to etch the sandstone fracture faces created. The chemical and physical properties of the composition result in very uneven etching of the fracture faces, enhancing the fluid conductivity of the final fracture. Optionally, inert masking materials may be included in the dry composition, or added to the slurry, to increase the inhomogeneity of the etching and further increase the fluid conductivity.
REFERENCES:
patent: 3480079 (1969-11-01), Guinn
patent: 3481404 (1969-12-01), Gidley
patent: 3548945 (1970-12-01), Gidley
patent: 3828854 (1974-08-01), Templeton
patent: 4056146 (1977-11-01), Hall
patent: 4136739 (1979-01-01), Salathiel
patent: 4454917 (1984-06-01), Poston
patent: 4526695 (1985-07-01), Erbstoesser
patent: 4848467 (1989-07-01), Cantu
patent: 4957165 (1990-09-01), Cantu
patent: 4986354 (1991-01-01), Cantu
patent: 4986355 (1991-01-01), Casad
patent: 5981447 (1999-11-01), Chang
patent: 6207620 (2001-03-01), Gonzalez
patent: 6394185 (2002-05-01), Constien
patent: 6432885 (2002-08-01), Vollmer
patent: 6521028 (2003-02-01), Frenier
patent: 6599863 (2003-07-01), Palmer
SPE 7892 Higher pH Acid Stimulation Systems—Charles C. Templeton, Albert Abrams, E.A. Richardson and Ronald F. Scheuerman.
Brown J. Ernest
Frenier Wayne
Fu Diankui
Still John W.
Xiao Zhijun
Bagnell David J
Cate David
Coy Nicole
Gaudier Dale
Nava Robin
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