Methods, cement compositions and suspending agents therefor
AssigneeHalliburton Energy Service,s Inc.
InventorsJiten Chatterji, Roger S. Cronwell, D. Chad Brenneis, Bobby J. King
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Abstract
The present invention includes methods of cementing, cement compositions and a suspending agent comprising boron treated low molecular weight dry ground guar splits. A cement composition of the invention comprises hydraulic cement, water and a boron treated low molecular weight dry ground guar splits suspending agent. A method of cementing comprising the steps of preparing a cement composition that comprises hydraulic cement, water and a suspending agent comprising boron treated low molecular weight dry ground guar splits; placing the cement composition in a location to be cemented; and allowing the cement composition to set.
Claims95
A method of cementing comprising the steps of:
- preparing a cement composition that comprises hydraulic cement, water and a suspending agent comprising boron treated low molecular weight dry ground guar splits;
- placing the cement composition in a location to be cemented;
- and
- allowing the cement composition to set.
A method of cementing comprising the steps of:
- preparing a cement composition that comprises hydraulic cement, optionally a strength retrogration preventer, weighting material, a fluid loss additive, a dispersant, a set retarder, water, and a suspending agent comprising boron treated low molecular weight dry ground guar splits;
- placing the cement composition in a location to be cemented;
- and
- allowing the cement composition to set.
A method of cementing comprising the steps of:
- preparing a heavy weight cement composition that comprises Portland hydraulic cement, optionally a crystalline silica strength retrogration preventer, iron oxide or manganese oxide weighting material, sodium chloride weighting material, a graft lignite copolymer fluid loss additive, a dispersant comprising a sulfonated acetone-formaldehyde condensate or the sodium salt of naphthalene sulfonate condensed with formaldehyde, a copolymer of acrylic acid and 2-acrylamido-2-methyl propane sulfonic acid set retarder, a tartaric acid set retarder, sufficient water to form a slurry, and a suspending agent comprising boron treated low molecular weight dry ground guar splits;
- pumping the heavy weight cement composition into the annular space between a well bore and a pipe string disposed therein;
- and
- allowing the cement composition to set therein.
A cement composition comprising:
- hydraulic cement;
- water;
- and
- a suspending agent comprising boron treated low molecular weight dry ground guar splits.
A cement composition comprising:
- hydraulic cement;
- optionally, a strength retrogration preventer weighting material;
- a fluid loss additive;
- a dispersant;
- a set retarder;
- water;
- and
- a suspending agent comprising boron treated low molecular weight dry ground guar splits.
A heavy weight cement composition comprising:
- Portland cement;
- crystalline silica strength retrogration preventer;
- iron oxide weighting material;
- sodium chloride weighting material;
- a graft lignite copolymer fluid loss additive;
- a dispersant comprising a sulfonated acetone-formaldehyde condensate or a mixture of polyvinylpyrrolidone and the sodium salt of naphthalene sulfonate condensed with formaldehyde;
- a copolymer of acrylic acid and 2-acrylamido-2-methyl propane sulfonic acid set retarder;
- a tartaric acid set retarder;
- sufficient water to form a slurry;
- and
- a suspending agent comprising boron treated low molecular weight dry ground guar splits.
A suspending agent comprising boron treated low molecular weight dry ground guar splits.
A cement composition suspending agent comprising boron treated low molecular weight dry ground guar splits.
Dependencies are inferred from the claim text.