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US 10,947,445 B2Granted
Formulations and methods
AssigneeIndependence Oilfield Chemicals LLC
InventorsJeffrey Dawson, Aiden Ashmore
Life of this patent
Estimating the term…
Abstract
Formulations for fracturing fluids are prepared by mixing a granulated water-soluble friction reducing polymer with an invert polymer emulsion friction reducing formulation optionally in the presence of an organophilic clay, without the need for specialized field equipment. The mixture can be dosed into water to produce a fracturing fluid which is found to be technically highly advantageous and cost-effective.
Claims19
A formulation (A), for use in a fracturing fluid, comprising:
- (i) a fluid (D) comprising an oil phase, wherein said fluid (D) is an inverse emulsion comprising a water-soluble polymer (B), wherein said polymer (B) includes acrylamide repeat units and is an ionic polyacrylamide, and said oil phase;
- and
- (ii) particles of a water-soluble polymer (C), wherein said particles of said polymer (C) are dispersed in said oil phase as solid discrete particles,
- the formulation (A) further comprising a suspending agent to facilitate suspension of said particles in the formulation, wherein said formulation (A) includes:
- 70-90 wt% of said fluid (D);
- 10-30 wt% of said particles:
- and 0 to 1 wt% of suspending agent.
4 more elements
A formulation (A), for use in a fracturing fluid, comprising:
- (i) a fluid (D) comprising an oil phase, wherein said fluid (D) is an inverse emulsion comprising a water-soluble polymer (B) and said oil phase;
- and
- (ii) particles of a water-soluble polymer (C), wherein said particles of said polymer (C) are dispersed in said oil phase as solid discrete particles, wherein:
- said inverse emulsion includes 15-40 wt% of said oil phase, 15-40 wt% of polymer (B) and 15-40 wt% water;
- and said particles of said polymer (C) are dispersed in said oil phase and wherein said particles of water soluble polymer (C) have a mean particle diameter of at least 100 μm and said particles are in the form of powder, granules or flake.
2 more elements
A formulation (A), for use in a fracturing fluid, comprising:
- (i) a fluid (D) comprising an oil phase, wherein said fluid (D) is an inverse emulsion comprising a water-soluble polymer (B) and said oil phase;
- and
- (ii) particles of a water-soluble polymer (C), wherein said particles of said polymer (C) are dispersed in said oil phase as solid discrete particles, wherein:
- said inverse emulsion includes 15-40 wt% of said oil phase, 15-40 wt% of polymer (B) and 15-40 wt% water;
- and said particles of said polymer (C) are dispersed in said oil phase and wherein said particles of water soluble polymer (C) have a mean particle diameter of at least 200 μm;
- and wherein at least 90 wt% of said particles of said water soluble polymer (C) have a diameter greater than 20 μm.
3 more elements
Dependencies are inferred from the claim text.