Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition

US9022147B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9022147-B2
Application numberUS-201113150438-A
CountryUS
Kind codeB2
Filing dateJun 1, 2011
Priority dateJun 1, 2011
Publication dateMay 5, 2015
Grant dateMay 5, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes with three parts of a cement composition consisting of water and cement, the drilling fluid cement composition mixture develops a compressive strength of at least 1,200 psi. According to another embodiment, a method of using the drilling fluid comprises the steps of: introducing the drilling fluid into at least a portion of a subterranean formation, wherein at least a portion of the drilling fluid is capable of mixing with a cement composition.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of using a drilling fluid comprising: drilling a wellbore in a subterranean formation with the drilling fluid, wherein the drilling fluid comprises: water and a set accelerator, wherein the set accelerator is selected from the group consisting of sodium metasilicate, potassium orthosilicate, sodium orthosilicate, and combinations thereof, and wherein the set accelerator is in a concentration in the range of about 3% to about 10% by weight of the wa…

Assignees

Inventors

Classifications

  • C04B28/02Primary

    Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Chemistry & Metallurgy · mapped topic

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What does patent US9022147B2 cover?
According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes…
Who is the assignee on this patent?
Ravi Krishna M, Whitfill Donald L, Patil Rahul Chandrakant, and 2 more
What technology area does this patent fall under?
Primary CPC classification C04B28/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue May 05 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).