System and method of producing foamed cement in a laboratory environment
AssigneeHalliburton Energy Services, Inc.
InventorsXueyu Pang, Walmy Cuello Jimenez, John P. Singh, Thomas Singh Sodhi, Aaron Cade Prince, Joe Kleber Maxson, Ronnie Glen Morgan
Life of this patent
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Abstract
Systems and methods related to preparing foamed cement for laboratory analysis are provided. A prepared cement slurry is placed in a cement reservoir cell configured to pressurize the cement slurry contained within the cement reservoir cell to a capture pressure. After pressurization, the cement slurry and a compressed gas are introduced into a foam generator. Foamed cement generated in the foam generator is introduced from the tee into a foam capture cell where it can cure prior to analysis.
Claims20
A method of preparing foamed cement in a laboratory environment for analysis comprising:
- preparing a cement slurry;
- introducing the cement slurry into a cement reservoir cell;
- pressurizing the cement reservoir cell to a pressure equal to or greater than a capture pressure selected to correspond to the conditions at a well site;
- introducing a gas into a foam generator through a first leg of the foam generator;
- displacing the cement slurry from the cement reservoir cell into the foam generator through a second leg of the foam generator such that the cement slurry and gas mix to form a foamed cement that flows into a third leg of the foam generator;
- and
- introducing the foamed cement from the third leg into a foam capture cell.
A method of preparing foamed cement in a laboratory environment for analysis comprising:
- preparing a cement slurry;
- introducing the cement slurry into a cement reservoir cell;
- pressurizing the cement reservoir cell to a pressure equal to or greater than a capture pressure selected to correspond to the conditions at a well site;
- introducing a gas into a foam generator through a first leg of the foam generator;
- displacing the cement slurry from the cement reservoir cell into the foam generator through a second leg of the foam generator such that the cement slurry and gas mix to form a foamed cement that flows into a third leg of the foam generator;
- introducing the foamed cement from the third leg into a foam capture cell;
- and
- removing the foamed cement from the foam capture cell and analyzing the foamed cement.
A method of preparing foamed cement in a laboratory environment for analysis comprising:
- preparing a cement slurry, wherein the step of preparing a cement slurry comprises the steps of mixing an aqueous fluid and cement to form a base cement composition, and adding a surfactant to the base cement composition;
- introducing the cement slurry into a cement reservoir cell;
- pressurizing the cement reservoir cell to a pressure equal to or greater than a capture pressure selected to correspond to the conditions at a well site;
- introducing a gas into a foam generator through a first leg of the foam generator;
- displacing the cement slurry from the cement reservoir cell into the foam generator through a second leg of the foam generator such that the cement slurry and gas mix to form a foamed cement that flows into a third leg of the foam generator;
- and
- introducing the foamed cement from the third leg into a foam capture cell, wherein a backpressure of the foam capture cell is controlled by a backpressure regulator so as to control the introduction of foamed cement.
A method of preparing foamed cement in a laboratory environment for analysis comprising:
- preparing a cement slurry, wherein the step of preparing a cement slurry comprises the steps of mixing an aqueous fluid and cement to form a base cement composition, and adding a surfactant to the base cement composition;
- introducing the cement slurry into a cement reservoir cell;
- pressurizing the cement reservoir cell to a pressure equal to or greater than a capture pressure selected to correspond to the conditions at a well site;
- introducing a gas into a foam generator through a first leg of the foam generator, wherein the gas is introduced into the foam generator through a choke;
- displacing the cement slurry from the cement reservoir cell into the foam generator through a second leg of the foam generator such that the cement slurry and gas mix to form a foamed cement that flows into a third leg of the foam generator, wherein the cement reservoir cell has a cylinder and a piston, the cement slurry is introduced into the cylinder, and the step of displacing the cement slurry comprises running a pump to move the piston within the cylinder so as to displace the cement slurry from the cylinder;
- and
- introducing the foamed cement from the third leg into a foam capture cell, wherein a backpressure of the foam capture cell is controlled by a backpressure regulator so as to control the introduction of foamed cement;
- and
- wherein the gas is selected from air, nitrogen and hydrogen.
Dependencies are inferred from the claim text.