SHALE HYDRATION INHIBITION AGENT

Additives that act to control clay swelling in drilled formations without adversely effecting properties of the drilling fluid are comprised of bis-3-aminopropyl ether amine functionalities, a derivative thereof, or mixtures thereof. The amine is derived by bis-cyanoethylation of terminal hydroxyl f...

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Bibliographic Details
Main Authors SMITH BUFORD BRIAN, PIETERNELLA RAYMOND HOSE, BLASSER JANE
Format Patent
LanguageChinese
English
Published 20.09.2019
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:Additives that act to control clay swelling in drilled formations without adversely effecting properties of the drilling fluid are comprised of bis-3-aminopropyl ether amine functionalities, a derivative thereof, or mixtures thereof. The amine is derived by bis-cyanoethylation of terminal hydroxyl functionalities and subsequent hydrogenation of the nitrile end groups to bis-3-aminopropyl primary amines. The backbone comprises a di-ethers or polyethers based on: ethylene oxide (EO), propylene oxide (PO), and all potential isomers of butyl di-or polyethers. Such bis-3-aminopropyl ether amines may include, but are not limited to amines with the following formula: H2N-R'-O-(RO)x-R'-NH2 where R' is (CH2)3; and R is: 1.) C2H4, with x being 2-10, or 2.) branched C3H6, with x being 1-17, or 3.) branched or linear C4H8, with x being 1-15, or 4.) linear C6H12, with x being 1, or 5.) cyclohexyl-1,4-dimethyl, with x being 1 and mixtures thereof, including, without limitation, Jeffamines (D, M, or XTJ series polyether ami
Bibliography:Application Number: CN201780085982