Placement of a substantially non-flowable cementitious material in an underground space
AssigneeHalliburton Company
InventorsJorge E. Manrique, Rodney L. Paugh, Richard L. Moody
Life of this patent
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Abstract
Method of admixing and placing a substantially non-flowable cementitious material into an underground space, such as a mine shaft or the like. In a preferred embodiment, a cement slurry including about 95% Class F fly ash and about 5% hydraulic cement is admixed with an activator using a high intensity mixer to form a substantially non-flowable cementitious material, wherein the substantially non-flowable material is pumped through a conduit and placed into the underground space. The cementitious material does not flow away from the area of placement.
Claims20
A method of admixing and placing substantially non-flowable cementitious material into an underground space, comprising the steps of:
- mixing a cement slurry;
- transferring said cement slurry to a high intensity mixer;
- introducing an activator to said high intensity mixer;
- using said high intensity mixer to admix said cement slurry and said activator into a substantially non-flowable cementitious material;
- and
- pumping the substantially non-flowable cementitious material into the underground space.
A method of admixing and placing substantially non- flowable cementitious material into an underground space, comprising the steps of:
- mixing a cement slurry;
- transferring said cement slurry to a high intensity mixer;
- introducing an activator to said high intensity mixer;
- using said high intensity mixer to admix said cement slurry and said activator into substantially non-flowable cementitious material, wherein the material is a substantially uniform admixture;
- pumping the substantially non-flowable cementitious material into the underground space.
A method of admixing and placing substantially non-flowable cementitious material into an underground space, comprising the steps of:
- mixing a cement slurry;
- transferring said cement slurry to a high intensity mixer;
- introducing an activator to said high intensity mixer;
- using said high intensity mixer to admix said cement slurry and said activator into a substantially non-flowable cementitious material, wherein said high intensity mixer provides sufficient energy for producing a substantially uniform admixture of said cement slurry and said activator;
- and
- pumping the substantially non-flowable cementitious material into the underground space.
Dependencies are inferred from the claim text.