Particulate flow enhancing additives
AssigneeHalliburton Energy Services, Inc.
InventorsBaireddy R. Reddy, Ronald E. Sweatman, James F. Heathman, Russell M. Fitzgerald, Ronald J. Crook
Life of this patent
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Abstract
The present invention provides particulate flow enhancing additives for improving the flow properties of dry particulate cementitious materials. The particulate flow enhancing additives basically comprise a particulate solid adsorbent material having a flow inducing chemical adsorbed thereon.
Claims40
A particulate flow enhancing additive comprising:
- a particulate solid adsorbent material having a flow inducing chemical adsorbed thereon;
- and
- wherein said flow inducing chemical is a polar molecule producing organic acid selected from the group consisting of polar molecule producing alkene carboxylic acids, sulfonic acids and salts of such acids formed with weak bases.
A particulate flow enhancing additive consisting essentially of:
- a particulate solid adsorbent material having a flow inducing chemical adsorbed thereon;
- wherein said flow inducing chemical is selected from the group consisting of polar molecule producing alkene carboxylic acids, sulfonic acids and salts of such acids formed with weak bases;
- and
- wherein the weight ratio of said particulate solid adsorbent material to said flow inducing chemical is in the range of from about 90:10 to about 10:90.
A particulate flow enhancing additive comprising:
- a particulate solid adsorbent material having a flow inducing chemical adsorbed thereon;
- and
- wherein the weight ratio of said particulate solid adsorbent material to said flow inducing chemical adsorbed thereon is in the range of from about 90:10 to about 10:90.
A particulate flow enhancing additive comprising:
- a particulate solid adsorbent material selected from the group consisting of precipitated silica, zeolite, talcum, diatomaceous earth and fuller's earth having a flow inducing chemical adsorbed thereon;
- wherein said flow inducing chemical is selected from the group consisting of polar molecule producing organic acids, salts of organic acids and acid anhydrides;
- and
- wherein the weight ratio of said particulate solid adsorbent material to said flow inducing chemical adsorbed thereon is in the range of from about 90:10 to about 10:90.
A particulate flow enhancing additive comprising:
- a particulate solid adsorbent material selected from the group consisting of precipitated silica, zeolite, talcum, diatomaceous earth and fuller's earth having a flow inducing chemical adsorbed thereon;
- wherein said flow inducing chemical is a polar molecule producing organic acid selected from the group consisting of alkyl carboxylic acids, alkene carboxylic acids, sulfonic acids and salts of such acids formed with weak bases;
- and
- wherein the weight ratio of said particulate solid adsorbent material to said flow inducing chemical adsorbed thereon is in the range of from about 90:10 to about 10:90.
Dependencies are inferred from the claim text.