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US 9,133,386 B2Granted
Viscous settable fluid for lost circulation in subterranean formations
AssigneeHallburton Energy Services, Inc.
InventorsArunesh Kumar, Sharath Savari, Jason T. Scorsone, Rajendra A. Kalgaonkar
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Abstract
A method of treating a well the method including the steps of: (A) forming a fluid including: (i) a shear-thinning aqueous liquid phase; and (ii) an inorganic setting material; wherein the fluid is shear-thinning, pumpable, and settable; and (B) introducing the fluid into the well.
Claims26
A method of treating a well, the method comprising the steps of:
- (A) forming a fluid comprising:
- (i) a shear-thinning aqueous liquid phase, wherein the shear-thinning aqueous liquid phase comprises a nano-particulate dispersed therein;
- (ii) an inorganic setting material;
- and
- (iii) a water-soluble chemical activator selected from the group consisting of:
- (a) phytic acid, an alkali metal salt or ammonium salt thereof;
- (b) methylglycinediacetic acid, an alkali metal salt or ammonium salt thereof;
- (c) a water-soluble polyepoxysuccinic acid, an alkali metal salt or ammonium salt thereof;
- and (d) salicylic acid, ascorbic acid, tannic acid, and an alkali metal salt or ammonium salt of any of the foregoing;
- wherein the fluid is shear-thinning, pumpable, and settable;
- and
- (B) introducing the fluid into the well.
9 more elements
Dependencies are inferred from the claim text.