Settable compositions and methods of use
AssigneeHalliburton Energy Services, Inc.
InventorsKyriacos Agapiou, Juan Humberto Martinez, Thomas Jason Pisklak, Vivek S. Goel, Lance Everett Brothers, Benjamin John Iverson
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Abstract
Disclosed herein are settable compositions and methods of using settable compositions in a wellbore. In one embodiment a method of introducing a settable composition into a wellbore is described. The method comprises providing a settable composition comprising pumice, hydrated lime, a set retarder, and water. Introducing the settable composition into a wellbore. Allowing the settable composition to remain static in the wellbore, wherein the settable composition remains in a pumpable fluid state for a period of about 1 day or longer while static in the wellbore.
Claims20
A method for introducing a settable composition into a wellbore, the method comprising:
- providing a settable composition comprising pumice, hydrated lime, a set retarder, and water, wherein the pumice, hydrated lime, and set retarder form a suspension in the water;
- introducing the settable composition into a wellbore;
- and
- allowing the settable composition to remain static in the wellbore, wherein the settable composition remains in a pumpable fluid state for a period of about 1 day or longer while static in the wellbore;
- wherein the settable composition is activated by inclusion of a set activator prior to the step of introducing the settable composition into the wellbore.
A method for introducing a settable composition into a wellbore, the method comprising:
- providing a settable composition comprising pumice, hydrated lime, a set retarder, and water wherein the set retarder comprises a phosphonic acid derivative, and wherein the settable composition further comprises a polycarboxylated ether dispersant;
- introducing the settable composition into a wellbore;
- and
- allowing the settable composition to remain static in the wellbore, wherein the settable composition remains in a pumpable fluid state for a period of about 1 day or longer while static in the wellbore.
A method for introducing a settable composition into a wellbore, the method comprising:
- providing a settable composition comprising pumice, hydrated lime, a set retarder, and water, wherein the pumice, hydrated lime, and set retarder form a suspension in the water;
- introducing the settable composition into the wellbore such that the settable composition forms a puddle in the bottom of the wellbore;
- and
- allowing the settable composition to remain static in the wellbore, wherein the settable composition remains in a pumpable fluid state for a period of about 1 day or longer while static in the wellbore;
- wherein the settable composition is activated by inclusion of a set activator prior to the step of introducing the settable composition into the wellbore.
A settable composition system for setting a casing comprising:
- wellbore casing disposed within a wellbore;
- a settable composition for placing into the wellbore and capable of remaining in a fluid state of less than 70 Bc for a time period of about 1 day or longer while static in the wellbore, wherein the settable composition comprises:
- water,
- pumice,
- hydrated lime,
- a set retarder, and
- a set activator;
- wherein the pumice, hydrated lime, and set retarder form a suspension in the water;
- wherein settable components present in the settable composition consist essentially of the pumice and hydrated lime;
- mixing equipment capable of mixing the settable composition;
- and
- pumping equipment capable of pumping the settable composition into the wellbore.
Dependencies are inferred from the claim text.