Union Carbide Corporation

Russell Harold Raines

Harvey Steven Koenig

William Collier Kuryla

Improved drilling operations for recovery of gas and/or oil from a porous subterranean formation are achieved using a drilling fluid, circulated in a well penetrating the subterranean formation, which minimizes loss of said drilling fluid into the surrounding porous formation. The improvement comprises employing a drilling fluid comprising water and an effective amount of hydroxyethyl cellulose having a molar substitution value of from about 1.1 to about 1.6, and an apparent viscosity in water of at least about 15 cps.

Use of low M.S. hydroxyethyl cellulose for fluid loss control in oil

A print paste formulation, useful in the printing of carpets and fabrics, comprising hydroalkyl carboxyalkyl cellulose as the thickening agent, a dye, and water as the carrier.

Print paste formulations with hydroxyalkyl carboxyalkyl cellulose

A formulation for use in the printing of fabrics or carpets comprising a thickener such as hydroxyalkyl cellulose, an ethylene oxide adduct of a mixture of C.sub.11 to C.sub.15 linear secondary alcohols, a dyestuff and water.

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Nitro, WV, United States of America

Russell Harold Raines