Method of preparing and using a drag-reducing additive having a dispersion polymer
A method begins with the step of preparing a drag-reducing additive by mixing a dispersion polymer with a surfactant and a solvent. The method continues with the step of forming a drag-reducing composition by combining the drag-reducing additive with an aqueous treatment fluid. The method further involves the step of injecting the drag-reducing composition into a subterranean formation, a pipeline or a gathering line.
1. A method comprising the steps of:
preparing a drag-reducing additive by mixing a dispersion polymer with a surfactant and a solvent;
forming a drag-reducing composition by combining the drag-reducing additive with an aqueous treatment fluid; and
injecting the drag-reducing composition into a subterranean formation, a pipeline or a gathering line.
2. The method of claim 1 , wherein the step of forming the drag-reducing composition with the aqueous treatment fluid further comprises the step of adding the drag-reducing additive into the aqueous treatment fluid on-the-fly as the aqueous treatment fluid is pumped into the subterranean formation, the pipeline or the gathering line.
3. The method of claim 1 , wherein the step of forming the drag-reducing composition further comprises the step of adding the drag-reducing additive to the aqueous treatment fluid before the drag-reducing composition is pumped into the subterranean formation, the pipeline or the gathering line.
4. The method of claim 1 , wherein the step of forming the drag-reducing composition further comprises adding from about 0.01 gallons to about 50 gallons of drag-reducing additive per 1,000 gallons of the aqueous treatment fluid.
5. The method of claim 1 , wherein the step of preparing the drag-reducing additive further comprises mixing 40-85% by weight of the dispersion polymer with 10-35% by weight of the surfactant with an HLB greater than about 8 and 5-30% by weight of the solvent.
6. The method of claim 1 , wherein the aqueous treatment fluid comprises an acid.
7. A method comprising the steps of:
preparing a drag-reducing additive by mixing 40-85% by weight of a dispersion polymer with 10-35% by weight of a surfactant with an HLB greater than about 8 and 5-30% by weight of a solvent;
forming a drag-reducing composition by combining the drag-reducing additive with an aqueous treatment fluid; and
injecting the drag-reducing composition into a subterranean formation, a pipeline or a gathering line.
8. The method of claim 7 , wherein the step of forming the drag-reducing composition with the aqueous treatment fluid further comprises the step of adding the drag-reducing additive into the aqueous treatment fluid on-the-fly as the aqueous treatment fluid is pumped into the subterranean formation, the pipeline or the gathering line.
9. The method of claim 7 , wherein the step of forming the drag-reducing composition further comprises the step of adding the drag-reducing additive to the aqueous treatment fluid before the drag-reducing composition is pumped into the subterranean formation, the pipeline or the gathering line.
10. The method of claim 7 , wherein the step of forming the drag-reducing composition further comprises adding from about 0.01 gallons to about 50 gallons of drag-reducing additive per 1,000 gallons of the aqueous treatment fluid.
11. The method of claim 7 , wherein the aqueous treatment fluid comprises an acid.