Solid sandstone dissolver

Wells – Processes – Placing fluid into the formation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Solid sandstone dissolver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid sandstone dissolver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid sandstone dissolver will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4147353

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.