Deflocculation additives for wellbore servicing fluid additives
AssigneeHalliburton Energy Services, Inc.
InventorsPaul J. Jones, Kyriacos Agapiou
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Abstract
A liquid additive composition comprising a particulate material, an organic carrier fluid, a deflocculant, and optionally a viscosifier and/or a surfactant; wherein the particulate material is substantially insoluble in the organic carrier fluid, and wherein the organic carrier fluid comprises a glycol and/or a glycol ether. A method comprising (a) contacting a particulate material, an organic carrier fluid, a deflocculant, and optionally a viscosifier and/or a surfactant to form a mixture; and (b) agitating the mixture to form the liquid additive composition.
Claims20
A liquid additive composition comprising a particulate material, an organic carrier fluid, and a deflocculant;
- wherein the particulate material is substantially insoluble in the organic carrier fluid and suspended therein;
- wherein the organic carrier fluid comprises a glycol and/or a glycol ether, wherein the deflocculant is selected from lignosulfonates, sulfonated naphthalene condensates, sulfonated acetone formaldehyde condensates (SAFCs), polyphosphates, aminophosphonates, aminophosphonic acids, polycarboxylate ethers or combinations thereof, wherein the liquid additive composition is non-cementitious, and wherein the liquid additive composition is shelf stable for greater than seven days, as indicated by a lack of agglomeration.
A method comprising:
- deflocculating a flocculated liquid additive composition, wherein the liquid additive composition comprises an organic carrier fluid and agglomerates of a particulate material;
- wherein the liquid additive composition is non-cementitious, wherein the particulate material is substantially insoluble in the organic carrier fluid;
- optionally wherein the particulate material comprises a water-interactive material and/or a water-insoluble material;
- and wherein the organic carrier fluid comprises a glycol and/or a glycol ether, by:
- adding a deflocculant to the flocculated liquid additive composition to provide a deflocculated liquid additive composition, wherein the deflocculated liquid additive composition comprises a reduced amount of the agglomerates relative to the flocculated liquid additive composition, wherein the deflocculant is selected from lignosulfonates, sulfonated naphthalene condensates, sulfonated acetone formaldehyde condensates (SAFCs), polyphosphates, polycarboxylate ethers, aminophosphonates, aminophosphonic acids, or combinations thereof.
Dependencies are inferred from the claim text.