Storable liquid suspension of hollow particles

Patent metadata

Field	Value
Publication number	US-11795383-B2
Application number	US-202217940813-A
Country	US
Kind code	B2
Filing date	Sep 8, 2022
Priority date	Nov 10, 2016
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

Provided are compositions and methods of using a liquid suspension of hollow particles comprising a plurality of hollow particles, water, a suspending aid, and a stabilizer selected from the group consisting of a non-ionic surfactant, a latex, an oleaginous fluid, porous silica, and combinations thereof. The liquid suspension is homogenous. An example method includes statically storing the liquid suspension in a container for at least one week; wherein the liquid suspension maintains a difference in density from the top of the container to the bottom of the container of less than one pound per gallon while stored. The method further includes adding the liquid suspension to a treatment fluid; wherein the liquid suspension reduces the density of the treatment fluid; and introducing the treatment fluid into a wellbore penetrating a subterranean formation.

First claim

What is claimed is:

1. A composition for a storable liquid suspension of hollow particles comprising:
a plurality of hollow particles,
water,
a suspending aid,
a styrene-butadiene latex stabilizer; and
a non-ionic surfactant stabilizer selected from the group consisting of polyethylene oxide, polypropylene oxide, polyethylene glycol/polypropylene glycol block copolymers, derivatives thereof, and mixtures thereof; wherein the non-ionic surfactant is present in the liquid suspension at a concentration of about 3% to about 30% by weight of the liquid suspension; wherein the liquid suspension is homogenous.

2. The composition of claim 1 , wherein the plurality of hollow particles are selected from the group consisting of glass spheres, glass microspheres, ceramic spheres, cenospheres, and combinations thereof.

3. The composition of claim 1 , wherein the plurality of hollow particles comprise materials selected from the group consisting of glass, soda lime, borosilicates, fly ash, ceramic, and combinations thereof.

4. The composition of claim 1 , wherein the average particle size (D10) of the plurality of hollow particles is in a range from about 5 μm to about 20 μm.

5. The composition of claim 1 , wherein the average particle size (D50) of the plurality of hollow particles is in a range from about 5 μm to about 110 μm.

6. The composition of claim 1 , wherein the average particle size (D90) of the plurality of hollow particles is in a range from about 40 μm to about 75 μm.

7. The composition of claim 1 , wherein the concentration of the plurality of hollow particles in the liquid suspension ranges from about 25% to about 75% by volume of the liquid suspension.

8. The composition of claim 1 , wherein the suspending aid is selected from the group consisting of diutan gums, scleroglucan, guar gums, carragenans, xanthan gums, welan, celluloses, hydroxyethyl celluloses, bentonite, attapulgite, sepiolite, vermiculite, illite, muscovite, biotite, kaolinite, cookeite, halloysite, flint clay, montmorillonite, hectorite, and combinations thereof.

9. The composition of claim 1 , wherein the concentration of the suspending aid in the liquid suspension ranges from about 0.1% to about 30% by volume of the liquid suspension.

10. The composition of claim 1 , wherein the concentration of the styrene-butadiene latex stabilizer in the liquid suspension ranges from about 0.1% to about 75% by volume of the liquid suspension.

11. The composition of claim 1 further comprising a defoaming agent, a dispersant, or a combination thereof.

12. The composition of claim 11 , wherein the composition comprises the defoaming agent and the defoaming agent is selected from the group consisting of polyols, silicon defoamers, alkyl polyacrylates, ethylene oxide/propylene oxide compounds, acetylenic diols, and any combination thereof.

13. The composition of claim 12 , wherein the concentration of the defoaming agent in the liquid suspension ranges from about 0.1% to about 10% by volume of the liquid suspension.

14. The composition of claim 11 , wherein the composition comprises the dispersant and the dispersant is selected from the group consisting of naphthalene sulfonic acid condensate with formaldehyde; acetone, formaldehyde, and sulfite condensate; melamine sulfonate condensed with formaldehyde; or any combination thereof.

15. The composition of claim 14 , wherein the concentration of the dispersant in the liquid suspension ranges from about 0.1% to about 5% by volume of the liquid suspension.

16. The composition of claim 1 , wherein the liquid suspension has a density of about 5 ppg to about 10 ppg.

Assignees

• Halliburton Energy Services Inc

Inventors

• Pang Xueyu
• Hundt Gregory
• Lewis Samuel
• Sodhi Thomas Singh
• Singh John P
• Tan Brendon

Classifications

• C09K8/905 Primary

  Biopolymers · CPC title

• C09K8/032

  Inorganic additives · CPC title

• C09K8/035

  Organic additives · CPC title

• C09K8/467

  containing additives for specific purposes · CPC title

• C09K8/584

  characterised by the use of specific surfactants · CPC title