High solids tolerant invert emulsion fluids
AssigneeIngevity South Carolina, LLC
InventorsShadaab S. Maghrabi, Joseph J. Fandel
Life of this patent
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Abstract
A low gravity solid tolerant emulsifier and methods of making the same. The emulsifier includes a maleated amido-amine reaction product produced by: (1) reacting a fatty acid material comprising, and an amine material (e.g., a amine having a amine value of about 700 to about 1300 mg/g, such as AMINE HST) to produce an amido-amine reaction product; and (2) reacting the amido-amine reaction product with maleic anhydride to produce the maleated amido-amine reaction product. An invert emulsion fluids and drilling fluids that include the emulsifier of described herein and methods of using the same.
Claims21
A low gravity solid (LGS) tolerant emulsifier comprising a maleated amido-amine reaction product produced by:
- reacting (i) a fatty acid material and (ii) an amine material to produce an amido-amine reaction product;
- and
- reacting the amido-amine reaction product with maleic anhydride to produce the maleated-amido-amine reaction product, wherein the fatty acid material includes at least one of:
- an acid number ranging from about 143 to about 200 mg/g;
- a fatty acid concentration of about 34% to about 89%;
- a rosin acid concentration of about 11% to about 50%;
- a titer point of less than about 14° C.;
- a PAN rosin acid concentration of less than or equal to about 50%;
- heavies present in an amount of less than or equal to about 40% of the fatty acid material, wherein the heavies are fatty acids or rosin acids that have a boiling point higher than monomer fatty and rosin acids formed during a distillation process;
- a Gardner color index in a range from about 4.0 to about 17.0, wherein the Gardner color index is determined with ASTM D6166-12 (2016);
- one or more of:
- C18 type fatty acids is present in an amount of about 25 to about 89%, C20 type fatty acids is present in an amount of less than or equal to about 34%, and C16 type fatty acids is present in an amount of no greater than about 5%;
- or
- a combination thereof.
A method of making an emulsifier, the method comprising:
- reacting (i) a fatty acid material comprising and (ii) an amine material to produce an amido-amine reaction product;
- and
- reacting the amido-amine reaction product with maleic anhydride to produce a maleated amido-amine reaction product, wherein the fatty acid material includes at least one of:
- an acid number ranging from about 143 to about 200 mg/g;
- a fatty acid concentration of about 34% to about 89%;
- a rosin acid concentration of about 11% to about 50%;
- a titer point of less than about 14° C.;
- a PAN rosin acid concentration of less than or equal to about 50%;
- heavies present in an amount of less than or equal to about 40% of the fatty acid material, wherein the heavies are fatty acids or rosin acids that have a boiling point higher than monomer fatty and rosin acids formed during a distillation process;
- a Gardner color index in a range from about 4.0 to about 17.0, wherein the Gardner color index is determined with ASTM D6166-12 (2016);
- or
- a combination thereof.
Dependencies are inferred from the claim text.