Balanced-activity improved inverse emulsion to inhibit brittle lutite hydration in oil fields

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United States of America Patent

PATENT NO 4474666
SERIAL NO

06378904

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Abstract

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An improved inverse emulsion for use as a drilling fluid that inhibits brittle lutite hydration. The emulsion includes a heavy oil; brine; a viscosity agent with thermostabilizing properties; an emulsifying agent; a thickening agent; a gelatinizing additive; and an alkaline earth metal hydroxide. The emulsion avoids hole collapsing and improves well gage stability.

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Patent Owner(s)

  • INSTITUTO MEXICANO DEL PETROLEO;INSTITUTO MEXICANO DEL PETROLEO, A CORP. OF MEXICO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barrera, Carlos D Revolucion, MX 1 1
de, J Hernandez Alvarez Rosa Naucalpan, MX 1 1
de, Jesus Garcia Ramos Jose Naucalpan, MX 1 1
Olmedo, Eduardo P Lindavista, MX 1 1

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