Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1992-01-03
1993-04-20
Lovering, Richard D.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
428403, 428407, 428500, 428517, 428334, 71 28, 71 6402, 71 6411, 524364, 524547, 525344, 427213, 427214, 424408, B32B 2706, B32B 2700
Patent
active
052041832
ABSTRACT:
An encapsulated breaker chemical composition used in a fracturing process in an oil or gas stimulation operation which comprises: (a) a breaker chemical; (b) a water soluble sealing layer, such as urea, having a thickness within the range of about 1 to about 30 microns deposited on the surface of said breaker chemical and encapsulating said breaker chemical; and (c) a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the coated breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical and is permeable to the breaker chemical.
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Drake Evelyn N.
Manalastas Pacifico V.
McDougall Lee A.
Newlove John C.
Exxon Research and Engineering Company
Lovering Richard D.
Sayala C.
Simon Jay
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