Calcium methylglycine diacetic acid salt particles and subterranean operations relating thereto
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 7, 2018
Grant Date -
Jul 21, 2016
app pub date -
Nov 27, 2013
filing date -
Nov 27, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Particles that comprise calcium methylglycine diacetic acid salt (“Ca-MGDA salt”) may be useful for fluid diversion in subterranean operations. In some instances, the particles may be formed in the subterranean formation. For example, a method may involve introducing a treatment fluid into a wellbore penetrating a subterranean formation, wherein the treatment fluid comprises an aqueous base fluid, MGDA or salt thereof, and an acid in an amount of about 3% or greater by weight of the aqueous base fluid; acidizing a portion of the subterranean formation comprising calcium carbonate resulting in a concentration of calcium in the treatment fluid that exceeds about 50,000 ppm; and precipitating a plurality of particles that comprise a Ca-MGDA salt in the portion of the subterranean formation, thereby reducing fluid flow therethrough. In some instances, the particles that comprise Ca-MGDA salt may be included in a treatment fluid before introduction into the subterranean formation.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- C09K Class
- 2036 Applications Filed
- 1761 Patents Issued To-Date
- 86.50 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C09K Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Feb 7, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Feb 7, 2030 |
