Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Reexamination Certificate
2005-08-30
2005-08-30
Tucker, Philip C. (Department: 1712)
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
C507S922000, C507S903000
Reexamination Certificate
active
06936575
ABSTRACT:
The invention provides an aqueous suspension/concentrate of a sparingly soluble borate, preferably as disclosed in Mondshine U.S. Pat. No. 4,619,776, which is effective in crosslinking aqueous solutions of a water soluble, borate-crosslinkable polymer, preferably guar gum and derivatives thereof. The aqueous suspension/concentrate comprises a saturated aqueous solution of a sparingly soluble borate, a suspension agent, suspended particles of a sparingly soluble borate, and optionally a stabilizing agent, wherein the saturated solution of the sparingly soluble borate is prepared prior to the particles of the sparingly soluble borate being suspended therein. The preferred suspension agent is a palygorskite clay such as attapulgite and sepiolite. The invention further provides a method of hydraulically fracturing a formation with the aqueous borate suspension/concentrate.
REFERENCES:
patent: 2773757 (1956-12-01), Connell et al.
patent: 4619776 (1986-10-01), Mondshine
patent: 4620596 (1986-11-01), Mondshine
patent: 5565513 (1996-10-01), Kinsey et al.
patent: 2003/0144154 (2003-07-01), Dobson et al.
Dobson, Jr. James W.
Hayden Shauna Leigh
Hinojosa Belinda E.
House Roy F.
Texas United Chemical Company LLC.
Tucker Philip C.
LandOfFree
Borate crosslinker suspensions with more consistent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Borate crosslinker suspensions with more consistent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Borate crosslinker suspensions with more consistent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3521711